Summary of Some . AGRONOMIC EXPERIMENTS . ~- on the Substations, Experiment Fields, and Main Station, 1930-1955 Department of Agronomy and Soils June, 1956 I Agricultural Experiment Station ~~'-";~of the Alabama Polytechnic Institute Auburn, Alabama ~ 33/ ,E 7 31':..2 The AGRICULTURAL EXPERIMENT STATION SYSTEM of the ALABAMA POLYTECHNIC INSTITUTE APR 20 '66 ')ENDY TENNESSEE VALLEY SUBSTATION • SAND MOUNTAIN SUBSTATION NORTH ALABAMA HORTICULTURE SUBSTATION. • UPPER COASTAL PLAIN SUBSTATION. ALEXANDRIA EXPERIMENT r:mFIELD- L:.ill FORESTRY UNIT Fayette Co. FORESTRY UNIT Talladega Co. ALICEVILLE EXPERIMENT FIELDO THORSBY FOUNDATION SEED STOCKS FARM CHILTON AREA HORTICULTURE SUBSTATION • o FORESTRY UNIT Coosa Co . • • • PIEDMONT SUBSTATION FORESTRY UNIT ... Autauga Ca. _ PLANT BREEDING UNITD fii" \ ~ MAIN STATION (Auburn) BLACK BELT SUBSTATION. ~ PRATTVILLE EXPERIMENT FIELD r::::'I LOWER COASTAL PLAIN SUBSTATION. TUSKEGEE EXPERIMENT FIELD .. ...., [I] ". FORESTRY UNIT\ Barbour Co. MONROEVILLE EXPERIMENT FIELD WIREGRASS SUBSTATION o • • BREWTON EXPERIMENT FIELD To: The "~gricul turnl ~lorkers of 1i.labnna Subject: A COr.J.pilation of Data from 1tgronor.J.ic Experiments Conducted in Alabnma 1930-55 j'[iriculturnl ~]orkors are cnlled on for infornntion en a wido varioty of ngronomic problens oy Alabnmn farmers who nre facing a rapidly changing agriculturo. The ."... P. I. Agriculturnl Experiment Station, in turn, receives many requests for rosoarch datn or rocommendations. ~,1hile some como direct from tho fnrmors many of these requests nre frem ngricultural workers. Few workers in oducntion and actien agencies renlize the amount of research offort and experimentnl data that is noedcd to back up sound teconmendations on such questions as the right amount and kind of fertilizer to use, tho best variety or strain of a crop to plant, the right spacing for maximum yield and many other phases of crop production. The oxperimental data that follow wore compiled and s~.rizod by tho staff of tho Departmont of tgronomy and Soils prima.rily for thoir own usc in nnking reco~nendations on a wide varioty of agrono~ic practices and in preparing manuscripts for publication. It bocnno obvious, however, thnt a considorablo amount of these data prebably would never be published either' in Statien publications or technicnl journnls. It is boliovod that thoso data, however, will bo of intorest nnd holp to maily agricl1lturnl Horkers in the Stnto in thoir efforts to serve tho l~abama farner. 'Therefore, this mimeograph is being ' made available to extonsion service workers, teachers of vocational agriculture, $ate and district persennel of tho Soil Coneorvntion Service, and othor public supported agricultural agencies. Some of the dntn in this sunnnry have been reperted in Station publications, technicnl journals, and farn nagnzinos over a period of years. Most of tho data. ha.ve been used by r 0senrch werkers as a. basis for Station rocommendations on s vr.rioty of practices. On the oth~r hnnd, a. good mny experirnnts have nevor boen reported and the amount of data. avnilable nay not be sufficient to justify fornal pUblicntion. Nost of tho oxperimental results were obt, .inod on'tho oight eub~' " stntions (Dlack Delt, Gulf Const, Lowor Ceastal Plain; Piodnont, Sand Mountain, Tonnesseo Vnlley, Upper'Ceastql Plain, and vnregrass), the six experiment fields (Jl.loxnndria, j.liccvillo, BreHton, Menroevillo, Prattville and Tuskogoe), nnd the H2.in Station .\gronomy Farm at Luburne 1. number of the experinents reported herein "lord · stnrted 1!hel1 the first SUbstations and experiment fields were established in 1929. Thus, some of the long-term experiments have been in progress for more than 25 years nnd are being continued. 1.i,...§hould bp-llointed out that most of the enrlier illillorimonts woro not . designed for st atistic~l analysis ru1d th2-!QQder should uso gaution in intorproting~he data. In general, a differonco in yield of 10 to 20 per cent betweon tho individual treatr!lents or varieties WGuld be required before nuch confidence can be plnced in the belief that the difference is a roal one end is not due to exporimontnl error. In sono tests differonces greator than 20 per cent would be required for statisticnl significnnce. The treatments in most of tho long-term tests ~ere duplicntod and every fourth plot was a chock or control plot. The dnta in this report nre grouped into the following headings: Fertility; Rotations; Varieties, Species, and Strains; Dates of Planti.ng; Spacing and Culture. A cemplete index is provided with the various cxperinents indoxed under theso headings and cross-indexod by location and by crop. It ~ill be noted that a brief interpretation or set of conclusions is given with each exporiment. Those conclusions nre not comploto and much additional infornation may be obtained by studying the data in tho tablos. Thoso tables and conclusions were prepared by members of the staff and questions about any particular experi~nt can bo directed to the research ~orker whose name is given. It is impossible to give duo recognition to a long list of research workers en the Substations,Experiment Fields, and Main Station 1>iho have contributed to tho planning, conducting, recording and analyzing the data of these experiments. Many of tho research H orkers who rode T:1ajor contributions to those results a.ro no longer nembers of the experiment station stnff duo to resignntion, retmroment, or death. It is to all of these vJOrkers that auch of the dredit should go for their long \. hours of caroful and painstaking work in the actual conduct of these "field tests. 91dLW~~ ~~A/1/ I Howard T. ROger~~H~r~ Agronomy and Soils Department SUMH:~RY oF THE IN DE X PAGE III, IV, V V, VI VI, VII VII VII, VIII VIII SUBJECT 1. Fortility 2. Rotations 3. Vnriotios, Specios ond Strnins 4. Tine of Planting 5. Spncing Culturo and Miscellaneous LOCATION l~ Llexnndrin Expcrinont Fiold, Lloxnndria; Alabana 2; }~icevillo Exporinent-Field, tliceville, ~abann. 3; Black Belt Substation, Marion Junction, Alabnnn 4; Brewton Experinent Field, Brewton, Alabama 5~ Gulf ,Const Substation, Fairhope, f~nbann. 6~ Lowor Coastal Plnin Substation, Cro:rlon, "Uabana 7 ~ Hain Station -~Gronony Farn, l:.uburn, fJ.abnna 0 ' u. Honroeville Exporinont Field, Monroovil1e, A1abana 9~ Pieclnont Substation; Ccnp Hill, L.1nbnna 10. Plnnt DreodinG Unit, Tn11cssoe, A1nbann 11. Prattville Experinent Field, Prattville, t~abanQ 12. Snnd Nountain Substation, Crossville, Alabnna Tennessee Vl),11ey Substation, Belle ~1ina, l,labana l3~ 14~ Tuskegee Exporinent Field, Tuskegee, A1abann Upper Coastal Plain Substation, Winfield, t1abana 15~ 16. vJiregrass Substation, Hoad1and, Alabana. Gastonburg Exporinont Field (discontinued) 17~ Hackloburg E:h.'Periaent Field (discontinued) 18~ 19. Lafayette Experiment Field (discontinued) 6. IX X IX, X X, XI XI XI XI~ XII XII XIII XIII XIII, XIV XIV, XV XV XVI XVI XVI, XVII XVII XVII XVII CROP 1. 2. Cotton Corn XVIII, XIX XX, XXI XXII 3. Grnin Sorghun 4. Locunos A. Annuals (1) Sunr.lor (a) Crotalaria (b) Lospedeza (ci ) Peanuts (d) Soybeans (e) Othors XXII - XXVI XXII XXII XXIII XXIII XXIII .XXIV x:xv XXII - XXIV \-Tintor B. Perennials (1) Alfalfa (2) Clovers (3) Kudzu (4) Soricon Lospedozn (2) xxrv,xxv y;:y:;:J - xxv I XXV ': y:'fl 11CV XXVI y;:y:;:JI XXVI, XXVII XXVII XXV! I 5. Porr.m.nont Pasturos 6. Sno.ll Grains 7. Sugo..r Cane S'loet Potn.toos e. Table E X? E R I ME N T SON FE R TIL I TY lA-1M Two Year Rotation Fertilizer ~xperiment.'~lex~ Alice., Brew., llonros., Pratt., S.M., Tenn. Valley, lviregrass - 1930-54 Response of Cotton and Corn in a Two Year Rotation to N, P205 and K 0 in Fertilizer Formula EXperiment No.1. at Eight ' 2 Locations 1930~43;'Alex., Alice., Brew., Monroe., Pratt., Sand Nt., Tenn. V., -Hiregrass. ' Formula Experiment No~ 2. Alice.; B'rew,,' Monroe., Pratt., Tenn. Valley, Sand Mt., 1tJiregr~ss. 1946-53 The Yields of Gotton and Corn in Formula and Rates of Fertilization'Expt. Sand Mt. 1944-54 Effect -of N, P, K and Lime on Ten Different Crops at Tuskegee, 1939-48 Effect of N, P, K and Lime on Oats, Corn, Kobe Lespedeza and Soybean Hay in a 4-Year Rotation~ Tuskegee - 1942-48 Rate of Fertilizing Gotton, Prattville. 1934-54 Rate of -Sidedressing Sodium Nitrate to Cotton, Prattville. Peanut Fertilizer and Spacing E~~eriment. Wiregrass. 1936-43 Response of Cotton to Method and Time of Application of Fertilizer at Piedmont., U. C. p., Brewton 1955 - Fertilizer Formula for Sweetpotatoes. Brewton, Monroe~ 1937-43 Sugar Cane Fertilizer Formula Experiment. Brewton. 1940-46 Grazing Days and Beef Yields from Rates of P, K and Lime on Permanent Pasture on Eutaw Clay. Black Belt. 1946-48 Fertilizer Strip Test on Corn at Gulf Coast Substation Showing th~ Crop Response of a Virgin Soil to Fertilizers and Supplements, 1953-55 The Effect- of 4-10-7 Fertilizer on Yield of Corn, U. C. p. 1949-55 ' The Effedt of One vs. Two Cultivations on Yield of Corn, U,C.p. 1949-52 Fertilizer Test for Grain Sorghum. Sand Mountain, 1947-49. Tenn. Valley 1947 Alfalfa Fertilizer Test~ Gulf Coast. 1944 Alfalfa Fertilizer Te st ~ Bre,~ton. 1945 Alfalfa Fertilizer Test. Prattville. 1944-45 Kudzu Fertilizer at Planting Time. Brewton. 1936 Pasture Fertilizer Experiment Tier l-P. Tenn. V. 1938-41 Fertilizer Experiment on Permanent Pasture. Sand Bt. 19/+0-41 Lime and Fertilizer Experiment No. 1$ - Alfalfa. Tenn. V. 1931-36 . Lime and Fertilizer -Experiment No 1. (Revised) - Alfalfa. 'Tenn. V. 1937-41 Lime,Phosphate and Potash E~~eriment - Alfalfa. Tenn. V. , 1933-37 Lime, Phosphato and Potash Experiment (Revised) - Alfalfa lRennessee Valley. 1938-41 -Sericea Lespedeza Fertilizer Test. Sand Mountatn.1941-44 Oat Fertilizer Experiment on Sumter Soil~ Black Belt. 1935-40 Oat Fertilizer Experiment -on Sumter Soil. Black Belt. 1932-40 Sources of Nitrogen No.'l. Two-Year Rotation of Cotton and Corn. Sand Mt., Tenn. V., Vliregrass. 1929-45 Sources of Nitrogen No.2. f.'Ionroeville., Sand Mt., Tenn~ Valley, I.firegrass, 1946-53 Nitrate of Soda vs. Sulfate of Ammonia. Auburn. 1934~53 Corn Variety Spacing and Rate of Nitrogen. Wirograss, Tenn. V., Sand M ountain, Lower Coastal Plain, Gulf"Coast;1950-53 Rates and Date ' of Application of N-to Oats. L. C. P., U. C. p., Piedmont., Black Belt. 1952-54 The Effect and Rate of Nitrogen as a "Side Application on the Y ield of Grain Sorghum. U. C. p. 1948-49 Rate of Seeding Grain Sorghum. S~nd Mt. 1947-49 Spacing and Rate of N itrogon as Side Application on Grain S. U. C. p. 1947-49 1rain Sorghum Spacing Test. Sand }lit. 1947-49 ates of N. Sidedressing on Grain Sorghum. U. C. p. 1948-49 H III 19L~9-53 Page 1-1413 2A-C 3A-C 15-16 11-19 ~ 20 4 5 6 7 8 9 10 11 12 13 14 21 22 23 23 24 25 26 27 28 29 30 30 31 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 32A & B 33 34 35 36A & B 37A & B 38 39 40 41 42 43 44 45-46 47-48 49 50A & B 51 52 52 53 54 53 Table FER TIL I T Y (Conttd) Commercial N. in ~ddition to a Good Crop of Vetch on Corn. U. C. p. 1949 Rate of Top Dressing N. on Oats. U. C. p. 1945-50 Rates of N Side Dressing and Spacing of Grain Sorghum. U. C. p. 1948-49 ' Sources of N. for Oats. U. c. r. 1945-50 Time of Applying N to Oats. U. C. p. 1945-50 Effects of Manure, Vetch and Commercial Nitrogen and Their Residues on Yields of Cotton and Corn. 1925-55. ~uburn Seed Yield of Tall Fescue Fertilized with Different Rates of N. Black Belt. 1951-53 Tall Fescue Gr~zing Management Test. Black Belt. 1949-50 Tall Fescue - Nitrate Grazing Management Test. Black Belt, 1950-51 Tall Fescue - Nitrate Grazing Management Test. Black Belt 1951-52 Performance of Some Individual Steers on the Tall Fescue Nitrate Grazing Hanagement Test. B. B. 1950-52 The Effect of Organic Hatter on the Growth and on the Diseases of Runner Peanuts and Blue Lupine. Hiregrass. 1947-51 Organic Hatter and Fortili'z or Test with Peanuts Dug, ' Peanuts Hogged and Corn in a 3-Year Rotation. Hiregrass. 1942-51 Yield of Seed Cotton in ~ rounds Per Acre From Acidity and l.vailabili ty of Phosphorus Y:..Xperiment. Tenn. V. 1930-45 Response of Cotton to Rates of Concentrated Superphosphate am to Various Nitric Phosphates at Rachel's Farm, Tuskegee, Prattville, Haddock Fa.rm, Moody Farm. 1953-54 Influence of Rates of Fhosphorus and Potash on Yields of Corn ' Fertilized with 80 lbs~ of Nitrogen. nlex., Alice., Brew., lionroe., Pratt., Tusk., G. C., Sand Mt. Pied. 1947-51 Response of Cotton to ' Various ' Phosphate Fertilizers and to Sulfate at t.lex., 1:..1ico., Frazer flall, Jackson, Monroe., BrO'l,-J., Haters, Peoples, Carpenter, Scars. 1951-53 Residual Effects of Phosphates as Measured by Crop Yields in a Rotation of Corn and Cotton with Hinter Legumes. Tenn. V. Pratt., Vliregrass. 194,6-1+9 Residual Effects of Superphosphate as Measured by Yields of Cotton. Sand Ht. Tier 25. 1930-55 Residual Effects of fhosphates as Measured ' by Crop Yields in a Rotation of Corn and Cotton. Tonn. V., Alex., Monroe., '\)Jiregrass. 1930-45 Yiolds of "111i te Clover From Uniform Rock rhosphate Test Conducted en the L, C. p. and Tuskegee. 1953-54 Response of Cotton to Lime and ' Phosphorus in Varying l.mounts at Hiregrass, Tenn. V. 1934-44 , Yield of Seod Cotton Produced by Various fhsophates with or 1-1i thout Lime. Sand l,it., Hirograss, Tenn. V. 1930-39 Rates of Totash for Cotton - 10-Year ..:~verage Yield of ' Seed Cotton where Various !.mounts of Potash Were Used. Sand }1t., Tenn. V., Wiregrass, Alice., 1930-39 Rotes of rotash in a Tuo Year Rotation of Cotton and Peanuts, ' Wiregrass. 1947-54 Two-Year Rotation of Cotton and Dug Peanuts Four-Year Average Cotton fu'1d Peanuts. Hiregrass. 1951-54 Effect of Rates of ~pplication of Potassium on Yield of Cotton FollOWing S1xYears of l'.lfalfa. Tenneasoe Valley Rates of Potash in a Two-Year Rotation of Cotton and'Peanuts~ ' Sand Mt. Tenn, V., Wlrograss. Aliceville. 1941, 43,45, 47 Effect of Potash and Hinor Elements on Alfalfa Hay Yields. Llicevillo. 1946 Corn ":iter Kobo Lespedeza. l.lexandria. 1942-43 Value of Side Dressing ' Cern vJith Potash Following Kobe Lespedeza. f~exandria. 1942-43 Effect of Lime and Potassium on Yield of Dixie Runner Peanuts. Auburn, 1950-54 41 42 43 44 45 46 47 Page 54 54 55 55 55 56 57 58A 58B 58B 5SB 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76A & B 77 78 78 79A & B 49 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Table FER TIL I T Y (Cont'd) The Rosults of an Experiment on Maintaining Soil Fertility and Crop Production on Soils Cropped with Harvested Peanuts (Revised beginning 1950). ! ..uburn . 73 The Results Obtained in Experiment on Haintaining Soil Fertility on Soils Cropped with Harvested Peanuts. tuburn. 1950-55 74 Kinds and·Rates of Lime in a 2-Yoar Rotation. Pratt., Sand Mt., Tenn. V., v liregrass. 1930-49 75 Small l..mounts of Limo to Cotton. Bre"lton. 1934-35 76 Effect of Lime, Basic Slag and Superphosphate on a 2-Year Rotation of'· Cotton, ltJinter Legume and Corn, Summer Leg. Bre'Jton. 1933-34 ; 77 Crimson Clover ~ Borax Soed Yield Test. · ~uburn 1950-53; Piedmont ' 195l-52; Brewton, 1950-53; L. C. p. 1951-53; Tuskegee, 1950-53; Sand Mt. 1952-54 7$ Yields of Crimson Clover Soed on Several Soil Types in f~abama as Influenced by Rates of Borax. Uniform Application of Limo and Fertilizer. 'Averages ' of Four Years and Three Roplic~tions. ·tuburn, Brewton, Crossville, Camden, Camp Hill, Tuskegee. 79 Hinor Elements to Corn. r10nroeville 1948... 51 80 Effect of Zinc on Yield of Corn. Brewton, Wiregrass. 1953-55 81 Effect of }ftnor Elements ' on Yield of Cotton, Corn, Peanuts, Lupine, Hairy Vetch, ~",ustrian Hintor Poas and Crimson Clover. Auburn, 1941-51 $2 Fertilizer Placement Tost for . Hairy Vetch. !~exandria. 1932-34 83 Response of Sericea to Rates of Concentrated Superphosphato Sources of Phosphorus, Lime, Sulfate, Potash and Minor Elements at Sand Nt., Monroe., Tusk., Piod., i:..lex., Brow., Pr€rtt. 83-2 E XPERIMENTS ON ROTATIONS 6-; 66 67 68 73-74 84 85 86 87A-B 88A-B 89A-H 90A-B 91A-I 92 931'. 93B 94 95A-B 96J\.-D Page 80 81 e:r 82-86 881~ & B 89-91 92 93 94 95A & B 96 97 Rates of rotash in ·a Two Year Rotation of Cotton and Peanuts. Hirograss. 1947-54 T"10 Yoar Rotation of Cotton and Dug Peanuts. \-liregrass. 1951-f;4 Effect of Rates of LpplicQtion of ~otassium on Yield of Cotton FollOWing Six Years of Alfalfa. Tonn. V. Rates of r otash in a T~JO Year Rotation of Cotton smd I'eannts ' Sand Nt., Tenn. V., "!Ilirograss., Aliceville. 1941, 43, 45, 47 Results Obtained in Experiment on Maintaining Seil Fertility on Soils Cropped with Harvested Peanuts. Auburn. 1950-55 The Yields of Crops in Cropping Systcms~ Tenn. V~'1930-53 The Yields of Crops in Cropping Systems. Sand Mt., 1930-53 Tho Yields of Crops in Cropping Systems. Wiregrass. 1930-53 Cropping f'ystem. Tuskegee. 1939-53 . Hethod of Planting Summer Legumes in Corn~ Fremorr 1931-43 Method of f1anting Summer Legumes in Corn~ Wiregrass 1933-38 Method of Planting Summer Legumes in Corn. Prattville. 1931-54 Method of flanting Summer Legumes in Corn. Tenn.. V 1931"-l!.5 Maintaining Yields Following Perennial Legumes. Monroe., S.M., Prattville. '1949-54 . Corn After Kudzu. Monroeville. 1942-53 Sources of Nitrogen for Oats in Sumter Soil. Black Bolt. 1952-54 :Production of Alfalfa FollO'tving Hinter Legumes. ' l'J.ex. 1945-47 The Yield of Swect Potatoes, Corn, Gotton, Grot., W. L. in ' S'JGot :Potato Cropping System Experiment. Brew., Pratt. 1944-52 Effect of Hogging and Harvesting Peanuts on Cotton, Corn and :Peanut Yields. 1;Tiregrass. 1940-43 Hogging Vs. Digging Peanuts at Uiregrass. 1932-52 Soil Improving Crops and Harvostod Peanuts Experiment. 1940-54 Brevlton and ltJircgrass tdaptntion of Crotalaria as a Volunteer Crop. Tenn. V., S. M. 1-ionroovil1e, Wiregrass. 1935-39 t.n Experiment vIi th Volunteer Crotalaria in Corn '-Ii th Different DQtes of LQst Cultivation. nlo~~ndria. 1935-38 II 73 74 75 76A & B 80-81 981.-99 100A-10l 102A....103B 104-105 106-108 109-113 114-1l5B 116-120 l21A-B 122 122 123 124-125 126-129 130A-B 131 132 133 97 98 99 100 V Tablo ROT A T ION S ( Contrd ) Old Rotation. Auburn. 1896-1955 . Fertilizer Treatmont- Old Rotation. Auburn. 1896-1955 Old Rotation Rosults. Auburn. 1896-1931 Old Rotation Rosults Since 1932 by 6-Ye8.r Periods. Aul:urn 1932-55 The Yields of Cotton and Corn in Vetch Residue Experiment I 1.uhurn. 1934-46 The Yields of Corn in Vetch Rosidue Experiment II. Auburn 1947-55 The Yiold of Crops in Perennial Legumes Rotation Experiment .~uburn. 1942-50 The Yield of Crops in a Perennial Legume Rotation Experiment ,iuburn, 1951-55 Cropping 'Systems Following Perennial Legumes. Tenn. Valloy 1944-1954 Winter Crop Adaptability Exporiment. Brow., Alox., Monroe., ~licovillo. 1931-54 101 · 102 103 104 105 106 107 108 109 122-125 Page 134 l351.-B 136 13'7 138 139 14:0 141 142 153-156 EXPERIMENTS ON V A R I E ,T I E S, S P E C I E S, AND S T R A INS Le;'1,tunes Vnrioty Test, Lafayotte, Alex., Brew., Monroe., Prattville . Hinter Legume Variety Test~ Upper Coastal flain ' Hinter LC[;ume Variety Test. vJiregrass~ Tonn. Send Mt. , (Eo.rly vs. Lato Cuttings) Hinter Legtune Variety Test. vJiregrass Results of Hinter Legume Varie t y Test. Monrooville. 1934-36 Pounds of Greon Herbage Per Acro Produced ' by Entries in the Uinter Logume Varioty Tost. Brevlton. 1934-36 Results of 'V-linter Legume VCriety Tost. Monroeville. 1934-36 lHntor Le€;'UDlo Variety Tost. Sand Mt. Tonn. V., Wiregrass Vetch Fertilizer Placement Test~ Alexandria ' VetCh Variety Test. ;\liceville, Brewton, Monroevillo, Pratt. ResQeding Legumes~ ~uburn. 1950-52 Resoeding Legumos. Piedmont. 1950~52 Winter Crop Adaptability Experiment~ Brewton. 1931-54 Hinter Crop Ldaptability Experiment. Discontinued in 1944. l.lox. inter Crop .idaptabHity Experiment. l1onroeville. 1931-54 H H int.or Crop ~~daptabili ty E)",})eriment. Aliceville. 1931-54 Mixtures of !.lfalfa \ \Ji th Different Species and Rates of Soeding of Grassos with and without Nitrogen~ Tenn. V. 1952' Rod Clovor Strain Tost. Tallassoe, Pied., U. C. p. 1948-49 l~yco Clover ••\ricevillo . Uniform Rod Clovar Variety Test. To.1lo.ssee. 1952 Red Clover Strain Tost. Tallassee Summary of White Clover Varioty Tests in f.1abama. F'. B. U., U. C.P., Tonn. VI:'.11oy.1952-54 Time of Planting Crimson Clover. Bro'l,.lton~ 1952-53 Crops for Permanent Pasture. Monroovi11e, Brewton. 1932-36 Grass Logume Mixture for Permanent Pasture at tho Tenn. V. 1937-41 Summer Logume Variety Test. Alicevi11e'~ 1938 Crotalaria Variety Tost. Browton. 1934-1935 Crotalnria Strain Test. Brewton. 1932-33 Crot alaria Variety Test, Aliceville. 1934-35 Crot alaria Strain Test~ f~icevillo~ 1932-33 Croial aria strain ~ ost . Aloxandria. 1932-33 Cro~al Qr ia Variety Tost. Alexandria. 1934-35 Tho Yiold of Groen No.ttor and Saed in Crota1aria Vo.riety Tost Sand Ht . 1937 The Yiol d of Species of Crota1ario. and Hisc. Sunrrnor Legumes IIr:,. ckleDurg Field. 1934-35 The Yield of Crotalaria in Variety Tost. Hackleburg 1932 Tho Yjold of Crotal aria in Varioty Tost. Lafayette 1934-35 ' VI Wint~r V., 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 127-2 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 11+3 l43A-B 144 145 145 146 147 148 149A-B 149:1.-B 150 151 152 153A-B 154L-B l55A-B 156 157 158 158 159 159 160 160 161 162.&:-163 164 165 165 166 166 167 167 168 169 169 170 144 Table V !. R IE TIE S, S P ~ C IE S, IJqD Pago S T RAt N S .(Cont'd) 145 146 147 148 149 150 151 152 153 154 155 156 162 170 171 171 172 172 173 173 174!.-B 175 176 177 178 187 The Yield of ' Spocies of Crotnlaria and Miscollaneous Summer Legumes. Lafayetto. 1932-38 The Yield of Crotalaria in Variety Test. Prattville. 1934-35. The Yields of Species ofCrotalaria. Miscellaneous Summer LOGumes. Prattville. 1932-33 The Yield of Crotalaria in Variety Tost at Monrooville. 1934-35 The Yields of Species of Crotalaria and Miscellaneous Summer Legumes. Monroeville. 1932-33 The Yield of Crotalaria in Variety Test. Gastonburg. 1932 The Yield of Crotalaria in Variety Test. Gastonburg. 1~34-35 Soybean Variety Testing in Alabama. Tallassee. Fairhopo, CD.mdC?n, Auburn, Belle Mina and Crossville. 1943-54 Sweet Sorghum Variety Test. Sand Mt. 1950-53 Yield of Hinter Legumes in Rcseoding Legume Test. Cullars Farm 1950-55 Seed Yio1ds and Botanical Composition in the Rosoeding Legumes Test. eullars Farm. 1950-53 Yield of Grain in the Resecding Legume Test. Cullars Farm 1950-55 Sugar Cane Variety 4\nd Time of Planting Test. Brewton. 1950-54 E X r E RI M E N T S ON TIME OF P LAN T IN 'G Time of Planting Cotton, Monroeville, l.lico., Sand Mt. Pratt., t1ex. 1949-54 ' Time of 11anting Corn· Experiment. l..lex., 1J.ice., Bre~l., Pratt., Sand 1It~, Tenn. V., lJiregrass. U. C. r., Gulf Coast. 1949-54 Corn Yields from Vrrious D,?tes of'P1anting Experiment in :.labama e Hircgrass, ·Tenn. V., Gulf Coast, .niceville. BrClJton, I'rattvil1e. 1932-48 The Yield of Spanish Peanuts from Planting Difforent Rates end Conditions of Seed at Differont Datos. Eight Locations 1943-47 Dato of Planting Spanish and Runner Peanufs. Aliceville. 1942 erioty and Time of Planting Test. Brewton. 1950-54 Sugar Cane V Oat D c..te of I lnnting - Mothod of' Utilization -Variety Experiment Lm'Jar Coastal l?lain. 1953-55 Oat D.te of I'lrrnting - Hethed of Utilization - Variety Experiment Upper Coastal !lain. 1952-55 Oat Dc..te of :Planting .;.. Hothod of Utilization - Variety Experiment Tennessee Valley. 1952-55 O Dote of Planting - Hethod of Utilization - Variety Experiment at Gulf Coast. 1953-55 Oat Date of Planting ... Method of Utilization - Variety Experiment Auburn. 1952-55 Oat Dato of Planting - Nethod of Utilization - Varioty Experiment Piedmont - 1952-55 DO.t o of Planting Runner Peanuts. Prattville. 1939-46 Time of Planting Cotton. Hiregrass. 1931-40 E X :z' E .R I MEN T SONS PAC IN G . , 157A-E 158 159 160 1Ej1 179-183 184 184 18-5 162 163-164 165-166 -: 167-168 169-170 171-172 173-174 182 185 186 187 188 189 190 191 192 193 198 200 \·Jidth of Rm·] ond Spacing.' of Corn. Tonna s so 0 Va110 , S and M+ • , Y " 11:l1.b urn, Brevlton. 1951-55 . Row S})acing of Corn Experiment. Hiregrass. 1932-40 SpacinG Tost. Sand Ht. 1932-33 Rm-l Spacing of Cotton Experiment. Hirograss ~ 1933-40 number of Cultivations of Cotton Experiment. Vlirograss 1<)31-40 Tho Yield of Spanish and Runner ?eanuts in a Spacing Test Alexandria. 1939-40 ., Spacinr; Test with Runner I-oanuts. Wiregrass. 1950.,. 53, 54 Do.te of Planting Runner Poanuts. I'rattvillo. 1939-46 175 176 17.7 178 179 180 181 182 194 195 195 196 196 197 198 198 VII Table S r L C I N G (Cont'd) The Yield of Corn and Crotalaria in Row Spacing and Time of Last Cultivation of Corn Experiment. Alex. 1939-45 reanut Fertilizer and-Spacing Experiment. Wiregrass. 1936-43 SpacinG and Ra.te -of-Nitrogen as Side f~pp1ication of Grain Sorghum. U. C. :i.\ 1947-49 Grain Sorghum Spacing Test. Sand l-1ountain. 1947-49 EXI'ERINENTS ON 183 9 38 39 Page 1991.-B 24 53 53 CULTURE AND MISCELLANEOUS 37 160 179 184 185 186A-B 187 188 189 190 191 192 193 194 195 196 197 198 198 52 185 196 200 200 201-202 203 204 205 206 207 208 209 210 211 212 2131.-B 214 214 Rate ofSceding Grain Sorghum. Sand Nt. 1947-49 The Yield of Spanish Peanuts from ~lClnting Different Rates and Conditions of Seed at Different Dates. 8 Locatiens 1943-47 Number of Cultivations of Cotton Experiment. Hirograss 1931-40 . Method of Cultivation of Cotton. :Jirograss. 1932-40 Time of :L'lanting Cotton. Vliregrass. 1931-40 Fodder Pulling Experiment. Sand Nountain. 1937-42 The Yiold of Runner and Spanish foanuts on Various Soil Types and the Effect-of Innoculation on Yio1d of Spanish and Runner l 'eanuts. Llex. 1941 l'eanut Cultivation E:h'}loriment. Hiregrnss. 1939 Effects of Number of Cutting and Time of Cutting Sericoa Lespedeza en Forage nnd Seed Yield. Prattville Effect of Rnte of Seeding Sericea on Yio1d of Hay and Seed :JralltOl1 1933-35 Effoct 01 Time ef Cutting and Fertilizers on Sericea Hay and Seed Yields. lionroevillo. 1933-35 Effect of Time of Cutting and Fertilizers on Soricea Hay -and Sced Yio1ds. Bral·Iton. 1933-35 Effect of Row -Jidth on Yield of Sericea Hay and Seed ' -Drel1ton. 1933-35 Effect of Time and Frequency of Cutting and Yields of Kudzu Hay at 1-kmrooville Field. 1933-42 Kudzu for Hay. Llexandria. 1935-44 Doep vs. Level flanting of Corn. Auburn. 1951-55 Soil Fumigation Studies. Tallassee. 1954-55 Effect of Rate of Seeding Lespodoza Sericea. luicevi11e 1943-47 Pounds of Hay per acre I'roduced by Varieties of !..nnua1 Lesp. Upper Coastal f1ain. 1952-53 VIII Table A L E X A NDRIA EXPERIMENT Two-Year Rotation Fertilizer Experiment 1930-54 Response of Cotton and Corn in a Two-Year Rotation to N,Pz05, and K20 in Fertilizer Formula Experiment Number 1 at Eight Locations - 1930-43. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized With 80# Nitrogen - 9 Locations 1947-51. Response of Corn to Various Phosphate Fertilizers and to Sulfate at Four Locations 195~-53. Residual Effects of Phosphates as Measured by Crop Yield in a Rotation of Corn and Cotton 1930-45. Corn After Kobe Lespedeza 1942-43. Value of Sidedressing Corn with Potash Following Kobe Lespedeza 1942-43. Fertilizer Placement Test for Hairy Vetch 1932-34. Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Lime, Sulfate, Potash and Minor Elements at Nine Locations 1948-55. Production of Alfalfa Following Winter Legumes ~ 1945-47. An Experiment with Volunteer Crota1aria in Corn with Different Dates of the Last Cultivation 1935-38. Winter Legume Variety Test 1934-36. Winter Legume Variety Test 1932-34. Winter Crop Adaptability Experiment 1931-44. Crota1aria Strain Test 1932-33. Crota1aria ~ariety Test 1934-35. Time of Planting Cotton 1949-54. Time of Planting Corn Experiment at 9 Locations 1949-54. The Yield of Spanish and Runner Peanuts in a Spacing Test 1939-40. The Yields of Corn and Crota1aria in Row Spacing and Time of Last Cultivation of Corn Experiment 1939-45. The Yield of Runner and Spanish Peanuts on Various Soil Types and the Effect of Innoculation on Yield of Spanish and Runner Peanuts 1941. Kudzu for Hay 1934-44. A LICEVILLE EXPERIMENT FIELD lC 1D Page FIELD 1C 1D IE 2A-B 56 57 60 70 71 83 ~ 5A-B 6A-B 7A-B 15-16 64 65 68 78 78 96 97 123 133 143-A-B 149-A-B 154-A-B 167 167 183 184 197 199-A-B 203 211 83-2 94 100 110 118 ,123 139 140 157E 158 180 183 187 195 Two-Year Rotation Earti1izer Experiment 1930-54. Response of Cotton and Corn in a Two-Year Rotation to N,P 20 , and K20 in Fertilizer Formula Experiment No. 1 at 8 5 Locations 1930-43. Formula Experiment No. 2 Cotton Continuously 1946-53. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized with 80# of Nitrogen 1947-51. Response of Cotton to Various Phosphate Fertilizer and to Sulfate at Four Locations, 1951-53. Rates of Potash for Cotton - 10-Year Average Yield of Seed Cotton Where Various Amounts of Potash were Used 1930-39. Rates of Potash in a Two-Year Rotation of Cotton and Peanutv, 1941, 1943, 1945, 1947. Effect of Potash and Hinor Elements on Alfalfa Hay Yields, 1946. Vetch Variety Test,1934. Winter Crop Adaptability EA~eriment 1931-54. Red Clover Strain Test 1948-49. Summer Legume Variety Test, 1938. . Crotalaria Variety Test 1934-35. Crotalaria Strain Test 1932-33. (Cont'd) IX IF 2A-B 3A-C 56 57 64 68 69 119 125 127-2 134 137 138 5A-B 6A-B 8A-B 15-16 17-19 64 65 72 76A-B ?? 150 156 158 164 166 166 Table A L ICE V ILL E (Cont1d) Page Time of Planting Cotton, 1949-54. Time of Planting Corn Experiment at 9 Locations 1949-54. Corn Yields from Various Dates of Planting Experiment in Alabama, 1932-48. Date of Planting Spanish and Runner Peanuts, 1942. Effect of Rate of Seeding Lespedeza Sericea 1943-47. B Gr~zing l57B 158 159 161 198 18'0 184 184 186 214 LAC K BEL T SUB S TAT ION 13 29 .30 35 47 48 49 50 51 57 93B 28 43 44 51 57 58A 58B Days ~nd Beef Yields from Rates of PK and Lime on Permanent Pasture on Eutaw Clay, 1946-48. Oat Fertilizer Experiment on Smnter Soil 1935-40. Oat Fertilizer Experiment on Sumter Soil 1932-40. Rates and Date of Application of Nitrogen to Oats, 1952-54. Seed Yield of Tall Fescue Fertilized with Different Rates of Nitrogen, 1951-53. Tall Fescue Grazing Management Test, 1949-50. Tall Fescue Nitrate Grazing Management Test, 1950-51. Tall Fescur Nitrate Grazing Management Test, 1951-52. Performance of Some Individual Steers on the Tall Fescue Nitrate Management Test 1950-52. Response of Cotton to Various Phosphate Fertilizers and to Sulfate at 11 Locations, 1951-54. Sources of Nitrogen for Oats on Smnter Soil, 1952-54. BREWTON EXrERIMENT FIELD 58B 58B 65 123 Two-Year Rotation Fertilizer Experiment, 1930-54. Response of Cotton and Corn in a Two-Year Rotation to N,P205, and K20 in Fertilizer Formula Experiment, 1930-43. Formula Experiment Nmnber 2 Cotton Continuously, 1946-53. Response of Cotton to Method and Time of Applications of Fertilizers at Three Locations, 1955. Fertilizer Formula for Sweet Potatoes, 1937-43. Sugar Cane Fertilizer Formula Experiment, 1940-46. Alfalfa Fertilizer Test, 1945. Kudzu Fertilizer at Planting Time, 1936. Response of Cotton to Rates of Concentrated Superphosphate and to Various Nitric Phosphates at Five Locations, 1953-54. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized with 80# Nitrogen, 1947-51. Response of Cotton to Various Phosphate Fertilizers and to Sulfate at 11 Locations, 1951-54~ Width of Rowand Spacing of Corn, 1951-5$. Small Amounts of Lime to Cotton, 1934-35. Effect of Lime, Basic Slag, and Superphosphate on a Two-Year Rotation of Cotton, ltlinter Legume, and Corn, Summer Legumes, 1933-34. Crimson Clover-Borax Seed Yield Test, 1950-53. Yields of Crimson Clover Seed on Several Soil Types in Alabama as Influenced by Rates of Borax. Effect of Zinc on Yield of Corn, 1953-55. Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Limo, Sulfate,Potash, and Minor Elements at 9 Locations, 1948-55. Method of Planting Summer Legumes, 1931-43. The Yield of Sweet Potatoes, Corn, Cotton, Crota1aria and H inter Legumes in Sweet Potato Cropping System Experiment, . 1944-54. Soil Improving Crops and Harvested Peanuts Experiment, 1940-54. (Conttd) X 1C 10 1G 2 3 10 11 12 19 21 55 56 57 75 76 77 78E 79 81 83-2 88A-B 95A 98 5A-B 6A-B 9A-B 15-16 17-19 25 26 27 33 35 63 64 65 194 87 88A-B 91 92 91 97 106-108 124 131 Table BRE Page vi TON (Cont r d) 110 122 1.31 132 135 136 158 159 162 190 192 193 143A-B 153A-B 160 161 165 165 184 184 - 187 206 208 209 Winter Legume Variety Test, 1934-36. Winter Crop Adaptability Experiment, 1931-54. Time of Planting Crimson Clover, 1953. Grops for Permanent Pasture, 1932-36. Crotalaria Variety Test, 1934-35. Crotalaria Variety Test, 1932-33. Time of Planting Corn Experiments at 9 Locations, 1949-54. Corn Yields From Various Dates of Planting Experiment in Alabama, 1932-48. Sugar Cane Variety and Time of Planting Test, 1950-54. Effect of Rate of Seeding Sericea on Yield of Hay and Seed, 1933-35. Effect of Time of Cutting and Fertilizer on Sericea Hay and Seed Yields. Effect of Row Width on Yield of Sericea Hay and Seed,1933-35. GUL F C0 AS T SUB S T AT ION Fertilizer Strip Test on Corn of Gulf Coast Substation Showing the Crop Response of a Virgin Soil to Fertilizer and Supplements, 1953-55. Alfalfa Fertili zer Test, 1944. Corn Variety Spacing and Rate of Nitrogen, 1950-53. Influences of H 8>tes of Phosphorus and Potash on Yields of Corn Fertilized with 80# Nitrogen, 1947-51. Soybean Variety Testing in Alabama, 1943-54. Time of Planting Corn mxperiments, 1949-54. Corn Yields From Various Dates of Planting Experiments in Alabama, 1932-48. Oat Date of Planting - Method of Utilization Variety Experiment Grain Yield, 1952-55. Oat Date of Planting - Method of Utilization Variety E~eri­ ment Forage Yield, 1952-55. L O WER COASTAL PLAIN 14 18 34 56 152 158 159 169 170 29 32A-B 50A-B 64 174-A-B 184 184 191 191 SUBSTATION 34 35 61 78F 79 152 163 164 50A-B 51 69 91 92 174A-B 188 188 Corn Variety Spacing and Rate of Nitrogen, 1950-53. Rates and Dates of Application of Nitrogen to Oats, 1952-54. Yields of White Clover from Uniform Rock Phosphate Test Conducted, 1953-54. Crimson Clover - Borax Seed Yield Test, 1951-53. Yields of Crimson Clover Seed on Several Soil Types in Alabama as influenced by Rates of Borax. Soybean Variety Testing in Alabama, 1943-54. Oat Date of Planting _ Method of Utilization Variety Experiment, 1952-55 - Grain Yield. Oat Date of Planting - Method of Utilization Variety Experiment, 1952-55 - Forage Yield. M A IN ST A TION AGRONOMY FARM~A~BURN N itrate of Soda vs. Sulfate of Ammonium Cotton, 1934-53. Effect of Manure, Vetch, Commercial Nitrogen and Lime ResiQues on Yields of Cotton and Corn, 1925-55. Effect of Lime and Potassium on Yield of Dixie Runner Peanuts, 1950-54. Maintaining Soil Fertility and Crop Production on Soils Cropped with Harvested Peanuts, 1950-55. Crimson Clove~ - Borax Seed Yield Test, 1950-53. (ContI d) 33 46 72 73-74 78A 49 56 79A-B 80-81 89 XI Table M A INS TAT ION - A U BUR N (Cont'~) \ Page Yields of Crimson Clover Seed on Several Soil Types in Alabama as Influenced by Rates of Borax. Effect of Minor Elements on Yields of Cotton, Corn, Peanuts, Lupine, Hairy Vetch, Austrian Winter Peas, and Crimson Clover, 19L~1-51. Old Rotations, 1896-1955. Fertilizer Treatment - Old Rotations, 1896-1955 Old Rotation, 1896-1936. Old Rotation Results Since 1932 by 6-Year Periods, 1932-55. The Yields of Cotton and Corn in Vetch Residue Experiment Number I, 1934-46. The Yields of Corn in Vetch, Residue Experiment II, 1947-55. The Yield of Crops in Perennial Legume Rotation Experiment, 1942-50. The Yield of Crops in a Perennial Legume Rotation Experiment. Reseeding Legumes, 1950-52. Soybean Variety Testing in Alabama, 1943-54. Yield of Winter Legumes in Reseeding Legume Test, 1950-55. Seed Yields and Botanical Composition in the Reseeding Legumes Test, 1950-53. Yield of Grain in the Reseeding !:legume Test, 1950-55. Oat Date of Planting - Method of Utilization Varioty Experiment, 1952··55 - Grain Yield. Oat Date of Planting - Method of Utilization Variety Experiment, 1952-·55 - Forage Yield. Width of Rowand Spacing of Corn, 1951-55. Deep vs. Level Planting of Corn, 1951-55. M 0 N ROE V ILL E E "X PER I MEN T FIE L D 79 82 101 102 103 104 105 106 107 108 120 152 154 155 156 171 172 175 196 92 95A-B 134 135A-B 136 137 138 139 140 141 151 174Ji-B 176 177 178 192 192 194 212 Two-Year Rotation Fertilizer Experiment, 1930-48. Response of Cotton and Corn in a Two-Year Rotation to N,P 205' and K20 in Fertilizer Formula Experiment Number I at 8 Locstions, 1930-43. _ Formula Experiment Number 11, Cotton Continuously, 1946-1953. Fertilizer Formula for Sweet Potatoes, 1937-43. Sources of Nitrogen Nurrber II, i946-53. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized with 80# Nitrogen, Nine Locat ~- ons, 1947-51. Response of Cotton to Various Phosphate Fertilizers and to Sulfate at Four Locations, 195~-53. Residual Effects of Phosphates as Measured by Crop Yields in a Rotation of Corn and Cotton, 1930-45. Minor Elements to Corn, 1948-51. Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Lime, Sulfate, Potash, Minor Elements, 1948-1955. Maintaining Yields Following Perennial Legumes, 1949-54. Corn after Kudzu, 1942-53. Adaptation of Crotalaria as a Volunteer Crop, 1935-39. Winter Legume Variety Test, 1934-36. Results of Winter Legume Variety Test, 1934-36. Results of Winter Legume Variety Test, 1934-36. Vetch Variety Test, 1934. Winter Crop Adaptability Experiment 1931-54. Crops for Permanent Pasture, 1932-36. Yio1ds of Crotaluriu"in Variety Tost, 1934-35. ' The Yield of Specios of Crptulario. and Miscollaneous, 1932-33. Time of Planting Cotton, 1949•. 54. Effect of Time of Cutting and Fertilizers on Sericea Hay and Seed YieldS, 1933-35. Effect of Time and Frequency of Cutting on Yields of Kudzu Hay, 1933-35. 1C ID 1H 2 3 11 32 56 57 60 80 83-2 92 93A 99 110 114 5A-B 6A-B 10A-B 15-16 17-19 26 47-48 64 65 68 93 97 12lA-B 122 132 143A-B 146 148 150 155A-B 161 172 ' 172 179 207 210 116 119 124 132 148 149 157A 191 194 XII Table r~ Page I :c D ~ r 0 N TS U B S TAT ION 10 35 56 78B 79 83-2 121 127 173 174 25 51 64 89 92 97 152 158 193 193 Response of Cotton to Method and Time of Application Fertilizer, 1955. Rates and Dates of Application of Nitrogen to Oats, 1952-54. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized with 80# Nitrogen, 1947-51. Crimson Clover - Borax Seed Yield Test, 1951-52. Yields of Crimson Clover Seed on Several Soil Types in Alabama as Influenced by Rates of Borax. Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Limo, Su1fate,Potash, and Minor Elements, 1948-55. Reseeding Legumes, 1950-52. Red Clover Strain Test, 1 9 4 8 - 4 9 . Oat Date of Planting - Method of Utilization Variety Experiment, 1952-55 - Grain Yield. Oat Date of Planting - Method of Utilization Variety Experiment, 1952-55 - Forage Yield. .'> PLANT BREEDING UNIT TALLASSEE 127 128 129 130 152 195 FIELD lC lD Red Clover Stra~_n Test, 1948-~.9. Uniform Red Clever Variety Tost, 1952. Red Clover Strain Test. Summary of White Clover Variety Tests in Alabama, 1952-54. Soybean Variety Testing in Alabama, 1943-54. Soil Fumigation Studies, 1954-55. PRATTVILLE EXPERIMENT 158 159 159 160 l74A-B 21.3A-B Two-Year Rotation Fertilizer Experiment, 1930-54. Response of Cotton and Corn in a Two-Year Rotation to Nitrogen, P205, and K 0 in Fertilizer Formula Experiment 2 Number I at 8 Locations, 1930-43. . Formula Experiment Number II, 1946-53. Rate of Fertilizing Cotton, 1934-M.. Rates of Sidedressing Sodium Nitrate to Cotton, 1949-53. Response of Cotton to Method and Time of Application of Fertilizers at Three Locations, 1955. Alfalfa Fertilizer Test, 1944-45. Response of Cotton to Rates of Concentrated Superphosphate and to Various Nitric Phosphates at 5 Locations, 1953-54. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized with 80# Nit.rogen!1 1947-51. Response of Cotton to Various Phosphate Fertilizers and to Sulfate at Eleven Locations, 1951-53. Residual Effects of Phosphates as Measured by Crop Yields in a Rotation of Corn and Cotton with Winter Legumes, 1946-49. Kinds and Rates of Lime in a Two-Year Rotation, 1930-49. Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Lime, Sulfate, Potash, Minor Elements at Nine Locations, 1948-55. M ethod of Planting SQ~e r Legumes in Corn, 1931-54. Maintaining Yields Following Perennial Legumes, 1949-54. The Yield of Sweet Potatoes, Corn, Cotton, Crotalaria and Winter Legumes in Sweet Potato Cropping System Experiment, 1944-52. Winter Legume Variety Test, 1936. Vetch Variety Test, 1932-1934. (Cont 1 d) XIII II 2 3 7 8 10 20 55 56 57 58 75 83-2 90A-B 92 95B 110 119 5A-B 6A-B 1lA-B 15-16 17-19 23 23 25 34 63 64 65 66 82-86 97 114..,115B 12IA-B 124-125 143A-B 150 Table P RAT T V ILL E (Cont'd) The Yields 6f Crota1aria in Variety Test, 1934-35. The !ie1ds of Species of Crota1aria Misc. Summer Legumes, 1932-33. Time of Planting Cotton, 1949-54. Time of Planting Corn Exp8riments at 9 Locations, 1949-54. Corn Yields from Various Dates of Planting Experiment in Alabama, 1932-48. Date of Planting Runner Peanuts, 1934-46. Effects of Number of Cutting and Time of Cutting Sericea Lespedeza on Forage and Seed Yields, 1934-1940. SAND MOnNTAIN SUBSTATION lC lD IJ Page 146 147 157D 158 159 182 189 171 171 182 184 184 198 205 Two-Year Rotation Fertilizer Experiment, 1930-48. 5A-B 6A-B 12A-B 15-16 17-19 20 31 37A-B 42 45-46 47-48 50A-B 52 53 64 67 71 72 76A-B 82 83 84 86 90 92 97 100A-I01 121-A~B Response of Cotton and Corn in a Two-Year Rotation to N,P205' and KZO in Fertilizer Formula Experiment Number I at 8 2 Locatlons, 1930-43. Formula Experiment Number II, 1946-53. 3 The Yields of Cotton and Corn in Formula and Rates of Fertilization Experiment, 1944-54. 4 17 Fertilizer Test for Grain Sorghum, 1947-49. 23 Pasture Fertilizer Experiment, 1940-41. 28 Lespedeza Sericea Fertilizer Experiment, 1941-44. Sources of Nitrogen Number I, 2-Yoar Rotation of C~tton and 31 Corn, 1930-41. 32 Sources of Nitrogen Number II, 1946-53. Corn Variety Spacing and Rates of Nitrogen, 1950-53. 34 37 Rate of Seeding Grain Sorghum, 1947-49~ Spacing and Rate of Nitrogen as Side Application on Grain 39 Sorghum, 1947-49. Influences of Rates of Phosphorus and Potash on Yields of Corn 56 Fertilized with 80# of Nitrogen, 1947-51. Residual Effects of Superphosphates as Measured by Yields of 59 Cotton, 1930-55. Yield of Seed Cotton Produced by Various Phosphates with and 63 Without Lime, 1930-39. Rates of Potash for Cottt.. •.~ - 10-Year Average YiG1d of Seed Cotton wnore Various Amounts of Potash Were Used, 1930-39. 64 Rates of Potash in a Two-Year Rotation of Cotton and Peanuts, 68 1941, 1943, 1945, 1947. 75A Kinds afid Rates of Lime in a Two-Year Rotation, 1930-49. B C E 78C Crimson Clover - Borax Seed Yield Test, 1952-54. Yields of Crimson Clover Seed on Several $oi1 Types in Ala79 bama as influenced by Rates of Borax Response of Sericea to Rates 'of Concentrated Superphosphate Sources of Phosphorus, Lime, Sulfate, Potash, and Minor 83-2 Elements, 1948-55. 85 The Yields of Crops in Cropping System Experiment, 1930-53 92 Maintaining Yields Following Perennial Legumes, 1949-54. Adaptation of Crotalaria as a Volunteer Crop, 1935-39. 99 112 Winter Legume Variety Test, 1939-40. 117 Winter Legume Variety Test, 1931-46. The Yiold of Green Matter and Seed in Crota1aria Variety Test, 141 1937. 152 Soybean Variety Testing in Alabama, 1943-54. 153 Sweet Sorghttm Variety Test, 1950-53. (Conttd) 132 145 149-A-B 168 174A-B 175 XIV Table SAN D M 0 U N T A I N (Contfd) 157C 158 175 177 186A-B Page Time of Planting Cotton, 1949-54. Time of Planting Corn EA~eriments at 9 Locations, 1949-54. Width of Rowand Spacing of Corn, 1951-55. Spacing Test - Corn, 1932-33. Fodder Pulling Experiment, 1937-42. TENNESSEE T~c-Year 181 184 194 195 201-202 'VALLEY SUBSTATION lC ID lK Rotation Fertilizer Experiment, 1930-54. 5A-B 6A-B 13A-B 15-16 17-19 31 36A-B 38 39 40 41 45-46 47-48 50-A-B 62 66 68 70 71 72 75 76A-B 82-86 Response of Cotton and Corn in a Two-Year Rotation to N, P205 , and KZO in Fertilizer Formula Experiment Number I at 8 Locat1ons, 1930-43. Formula Experiment Number II, 1946-53. Fertilizer Test for Grain Sorghum, 1947-49. Past ure Fertilizer Experiment Tier 1P - 1938-41. Alfalfa,Lime and Fertilizer Experiment, 1931-36. Alfalfa,Lime and Fertilizer Experiment (Revised) 1939-41. Alfalfa,Lime, Phosphate, and Potash, 1933-37. Alfalfa, Phosph~te, and Potash Experiment, 1938-41. Sources of Nit.rogen Number I, Two-Year Rotation of Cotton and Cor!l! 2.930-41. Sources of Nitrogen Number II, 1946-53. Corn Variety Spacing and Rate of Nitrogen, 1950-53. Yield of Seed Cotton in Pounds Per Acre from Acidity and Availability of Phosphorus Experiment, 1930-45. Residual Effects of Phosphates as Measured by Crop Yields in a Rotation of Corn and Cotton with Winter Degumes,1946-49. Residual Effects of Phosphates as Measured by Crop Yields in a Rotation of Corn and Cotton with Winter Legumes, 1946-49. Response of Cotton to Lime and P~ospharus in Varying Amounts, 1934-44. Yield of Seed Cotton Produced by Various Phosphates with and without Lfume, 1930-39. Rates of Potash for Cotton - 10 Year Average Yield of Seed Cotton Where Various Amounts of Potash were Used,1930-39. Effect of Rates of Applic&tions of Potassium on Yield of Cotton Following Six Years of Alfalfa, 1950. Rates of Potash in a Two-Year Rotation of Cotton and Peanuts, 1941, 1943, 1945, 1947. Kinds and Rates of Lime in a Two-Year Rotation, 1930-49. The Yields of Crops in Cropping Systems Experiment 1930-53. M ethod of Planting Summer Legumes in Corn t 1931-45. Adaptation of Crotalaria as a Volunteer Crop, 1935-39. Cropping Systems Fo11ow~ng Perennial Legumes, 1944-54. Winter Legume Variety Test, 1939-1940. Winte:...' Legu!ne Variety Test, 1931-1946. Mixtures of Alfalfa with Differ ent Species and Rates of Seeding of Grasses with and without Nitrogen, 1952. Summary of W hite Clover Variety Tests in Alabama, 1952-54. Grass Legume Mixture for Permanent Pasture, 1937-41. Soybean Variety Testing in Alabama, 1943-54. Time of Planting Corn Experiments at 9 Locations, 1941-54. Corn Yields from Various Dates of Planting Experiments in Alabama, 1932-1948. Width of Rowand Spacing of Corn, 1951-55. Oat Date of Planting - Method of Utilization Variety Experiment, 1952-55, Grain Yield 9 Oat Date of Planting - Method of Utilization Variety Experiment, 1952-55; Forage Yield. 2 3 17 22 24 25 26 27 31 32 34 54 58 60 62 63 64 67 68 75A-E 84 9 lA-I 99 109 112 117 126 130 133 152 158 159 175 16(1 168 98A-99 116-120 132 142 145. 149A-B 157 160 l62A-163 174A-B 184 184 194 190 190 Table TUSKEGEE EXPERIMENT FIELD Effect of NPK and Lime on Ten Different Crops, 1939-48. Effect of NPK and Lime on Oats, Corn, Kobe Lespedeza and Soybean Hay in a Four-Year Rotation, 1942-48. Response of Cotton to Rates of Concentrated Superphosphate and to Various Nitric Phosphates at Five 10cations, 1953-54. Influence of Rates of Phosphorus and Potash on Yields of Corn Fertilized with 80# Nitrogen, 1947-51. Yields of W hite Clover from Uniform Rock Phosphate Test, 1953-1954. Crimson Clover - Borax Seed Yield Test, 1950-53. Yields of Crimson Clover Seed on Several Soil Types in Alabama as Influenced by Rates of Borax. Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Lime, Sulfate, Potash, Minor Elements, 1948-55. Cropping System, 1939-53. Page 21 22 63 64 69 90 92 97 104-105 5 6 55 56 61 78D 79 83-2 87A-B ur r ER C 0 AS TAL P LA rN SU B S TAT ION 10 15 16 35 36 38 40 41 42 43 44 45 111 127 130 158 Response of Cotton to Method and Time of Application of Fertilizers at Three Locations, 1955. The Effect of 4-10-7 Fertilizer on Yield of Corn, 1949-55. The Effect of One vs. Two Cultivations on Yield of Corn, 1949-52. Rates and Date of Application of N to Oats, 1952-54. The Effect of Rate of Nitrogen as a Side Application on the Yield cf Grain Sorghum, 1948-49. Spacing and Rate of Nitrogen as a Side Application on Grain Sorghum, 1947-49. Rates of Nitrogen Sidedressing on Grain Sorghum, 1948-49. Commercial Nitrogen in Addition to a Good Crop of Vetch on Corn, 1949. Rate of Top Dressing Nitrogen on Oats, 1945-50. Rates of Nitrogen Sidedressing on Grain Sorghum, 1948-1949. Sources of Nitrogen for Oats, 1945-50. Time of Applying Nitrogen to Oats, 1945-50. Winter Legume Variety Test, 1946. Red Clover Strain Test, 1948-49. Summary of White Clover Variety Test in Alabama, 1952-54. Time of Planting Corn Experiments at 9 Locations, 1949-54. Oat Date of Planting Nethod of Utilization Variety Experiment , 1952-55, Grain Yield. Oat Date of Planting Method of Utilization Variety Experiment, 1952-55, For~ge Yield. Pounds of Hay per acre Produced by Varieties of Annual Lespedeza, 1952-53. W IRE G R ASS S U B-S TAT ION 25 30 30 51 52 53 54 54 54 55 55 55 144 158 160 184 189 189 214 165 166 198 Two-Year Rotation Fertilizer Experiment, 1930-54. Response of Cotton and Corn in a Two-Year Rotation to N, P205 , and K20 in Fertilizer Formula Experiment, 1930-43. Formula Experiment Number II, 1946-53. Peanut Fertilizer and Spacing Experiment, 1936-43. Sources of Nitrogen Number I, 1929-45. Sources of Nitrogen Number II, 1946-53. Corn Variety Spacing and Rate of Nitrogen, 1950-53. The Effect of Organic Matter on the Growth and on the Diseases of Runner Peanuts and Blue Lupine, 1947-51. (Conttd) 1C 1D 1L 2 3 9 31 32 34 52 5A-B 6A-B 14A-B 15-16 17-19 24 45-46 47-48 50A-B 60 XVI wiRE Table G R ASS (Contrd) 53 58 60 62 63 64 65 66 68 75A-E 81 86 89A-H 96A-D 96A-D 97 98 99 112 113 117 158 159 176 178 179 181 184 185 188 Page Organic Matter and Fertilizer Test with Peanuts Dug, Peanuts Hogged and Corn in a Three-Year Rotation,1942-51. Residual Effects of Phosphates as Measured by Crop Yields in a Rotation of Corn and Cotton with Winter Legumes, 1946-49. Residual Effects of Phosphates as Measured by Crop Yield~ in a Rotation of Corn and Cotton, 1930-45. Response of Cotton to Lime and Phosphorus in Varying Amounts, 1934-44. Yield of Seed Cotton Produced by Various Phosphates with or without Lime, 1930-39. " Rates of Potash for Cotton - Ten-Ye~r Average Yield of Seed Cotton Whore Various Amounts of Potash Were Used,1930-39. Rates of Potash in a Two-Year Rotation of cotton and Peanuts, 1947-54. Two-Year Rotation of Cotton and Dug Peanuts Four-Year Average Cotton and Peanuts, 1951-54. Rates of Potash in a Two-Year Rotation of Cotton and Peanuts, 1941, 1943, 1945, 1947. Kinds and Rates of Lime in a Two-Year Rotation, 1930-49. Effect of Zinc on Yield of Corn, 1953-55. The Yield of Crops in Cropping System Experiment, 1930-53. Method of Planting StUIDncr Legumes in Corn, 1933-38. Effect of Hogging and Harvesting Peanuts on Cotton, Corn, and Peanut Yields, 1940-43. Effect of Hogging and Harvesting Peanuts on Cotton, Corn, and Peanut Yields, 1944-54. Hogging vs. Digging Peanuts, 1932-52. Soil Improving Crops and Harvested Peanuts Experiment, 1940-54. Adaptation of Crotalaria as a Volunteer Crop, 1935-39. Winter Legume Variety Test Early vs. Late Cuttings. Winter Legume Variety Test. Winter Legume Variety Test. Time of Planting Corn Experiment at 9 Locations, 1949-54. Corn Yields from Various Dates of Planting Experiment in Alabama, 1932-48. Row Spacing of Corn Experiment, 1932-40. Row Spading of Cotton Experiment, 1933-40. Number of Cultivations of Cotton Experiment, 1931-40. Spacing Test with Rm1ner Peanuts, 1950,1953, and 1954. Method of Cultivation of Cotton, 1932-40. Time of Planting Cotton, 1931-40. Peanut Cultivation Experiment, 1939. GASTONBURG EXPERIMENT FIELD 61 66 68 70 71 72 73 74 76A-B 82-86 94 102A-I03B 109-113 1~6-129 126-129 130A-B 131 132 145 145 149A-B 184 184 195 196 196 198 200 200 204 The Yield of Crotalaria in Variety Test, 1932. The Yield of Crotalaria in Variety Test, 1934~35. HACKLEBURG T~e 150 151 FIELD 142 143 173 173 EXPERIMENT Yields of Species of Crotalaria and Miscellaneous Summer Legumes) 1934-35. The Yields of Crotalaria in Variety Test, 1932. L A F AYE T TEE X PER I MEN T FIE L D 169 169 Winter Legume Variety Test. The Yield of Crotalaria in Variety Test, 1934-35. The Yield of Species of Crotalaria and Misc. Surr®er Legumes, 1932-35. 110 144A ~, 143A-B 170 170 145B XVII 'fab10 E X r E RIM E NT S O~ Page COT TON 1-14B Two Year Rotation Fcrti1izorEXporimont~ t~ex., ~lico., Brow., Monroe., Pratt., S.H., T.V., H.G., 1930-5/~ , 11.-M Rospo~ao . of Cotton and Corn in a Two Year Rotation to N, P2 05 ' nnd K20 in Fertilizer Formula Experiment No.'l Alex., Alice., Brew., Monroe., Prntt., S.M., T.V., H.G. 1930-43 " 21.-C Formu11i Experimont No . 2. rJ.lce., Brew., Monroe., rratt., T.V., ' S.l/I., 1.1.G., 1946-53 3A-C Yio1ds of Cotton and ' Corn in Formula and Rntes of Fertilization ~xperimont. S.M., 1944-54 4 7 Rate of Fertilizing Cotton. Prattville 1934-54 Rates of Sidedres sing Sodium Nitrate of Cotton. Prattville 1949-53 8 Response of ' Cotton to Fethod and Time of P,pplicntion of Fertilizer. Pied. Finfie1d. Brewton, 1955 10 Sourcos of Nitrogen No . 1. -'I'\~o Yonr Rotation of Cotton and 31 Corn. S.N., T.V., -H.G.,193Q-41 Sources of Nitrogen No.2. 1946-53. Monroe., S.M., T.V., H.G. 32 Nitrate of Soda vs. Sulfate of i,mmonium. Auburn. 1934-53 33 Effects of Manure, Vetch, and Commercial Nitrogen and Their Residues on Yields of Cotton and Corn. Auburn. 1925-55 46 Yield of Soed Cotton in filL From l . .cidity nnd [.vni1abi1ity of ~hosphorus Experiment. Tenn. V. 1930-45 54 Response of Cotton to Rates of ' Concentrated Superphosphnte and V!''rious Nitric Phosphatos~ 1953-54. Rachel's Fnrm, Tusk. Traudt Farm, Hnddock Farm, Moody Farm 55 Response of Cotton to Various Ihosphate Fertilizers and to Sulfnte~ 1951~53, rJ.ex~, 1.lice., Frnzer Hall, Jack, Monroe., i:rew., VIa t ers ., People s ., Carpenter, Sears. 57 Residual Effects of I'hosphates as Neasured by Crop Yields in ' a Retation of Corn and Cotton with Hinter Legume. 1946-49 Tenn. V., I'ratt., l\T,G. 58 Rosidua1 Effects of ~lp6rphosphate ~s Measured by Yields of Cotton nt the S. M. Substation 1930-55 59 Residual Effects of Phosphates as Mensured by Crop Yields in a Rotation of Corn and Cotton. 1930-45. T.V., PJ.ex., Nonroe., H.G. 60 Responso "of "Cotton' to Lime and :-hosphorus in Varying '·mounts 62 1S'34-44. WeG., T.V. Yield of Seed Cotton Produced by Various·Phosphates with and ']i~hout Lime 1930-39. S.M., HoG., T9V, 63 Rates of Iotash for Cotton. Ten-Y o~r Lverage Yield of Seed Cotton vhere Vnrious lJil0untS of lotash Pere Used. S.H. T. V" VI .G., niceville. 1930-;39 64 Rnt es of Iotnsh in' n T\,o Yenr Roto.tion of Cotten and Peanuts Hiregra ss. 1947-54 6.5 Tuo-Yeo.r Rotation of Cotton nnd Dug Peanuts. Four Yenr J,verage of Cotton end Peanuts. lJiregrass. 1951-54 66 Effect of Rntes ef ~pplications of rotassium on Yield of Cotton Fo11mdng Six Yenrs of P.1fa1fa. Tonn. Vn11ey . 67 Rates of 'Fotasli'ina Two Year Rotation'of Cotton and Peanuts. S.H., T.V., H.G., ,\lice. 1941, 43, 45, 47 68 Kinds and ' Rntos ' of Limo in a T,·IO Year Rotation. rratt., S.M., T.V., IT.G., 1930-49 75 S~~ll l~ounts of Lime to Cotton. Brewton. 1934-35 76 Effoct of Lime Basic SIng and ' Superphosphnte on a Two-Year Rotation of Cotten. W.L., ffild Corn S.L. 1933-34. Brewton 77 Effoct of Hiner Elements on Yield of Cotton, Corn, renIluts, Lupine, Vetch, L. H. rens rod Crimson Clover, 1941-51. l. .uburn 82 The Yiolds of Crops in CroppinG Systoms. Tenn Valley. 1930-53 84 Tho Yields of Crops in CroDping Systems. S.M. ' 1930-53 85 Tho Yields ef Crops in CroppinG Systems. W.G., 1930-53 86 Cropping Systems. Tuskegoe. 1939-53 87A-B Hethod of r lanting Surnmer Legumes in Corn 1931-43. Brewton 88A':'B XVIII 15-16 17-19 20 23 23 25 45-46 47-48 49 56 62 63 65 66 67 68 70 71 72 73 74 75 76t~-B 82-86 87 881.-B 95A...;.B 98-99 100-101 l02-:3B 104-5 106-8 Table COT TON (Cont'd) Nethed of I'lnnting Sunnner Legumes in Corn~ Wirograss. '1933-38 Method of T1anting Summer LOGumes in Corn. Prattville. 1931-54 Method of r1nnting SUlllr.1er Logumes in Corn. T. V., 1931-45 M..'l.intnining Yiolds · Following rerennia1 Lor-ume s. Monroe., S.M., Pratt. 1949-5/. ' The YIeld of Sl.Jeet I'otatoos, Corn, Cotton, Crotn1aria nndvJ.L. in StJoet rotato Cropping System Experiment. Brewton. Pratt., 1944-52 Effect of Hogging and Harvesting Poanuts on Cotton, Corn and Peanuts Yields. 1940-54. Wii'egrass Hogging vs. Digging Peanuts at p.G. 1932-52 Soil Improving ' Crops and Harvested Tennuts Experiment. Brewton. Hiregrass. 1940-54 Old Rotation. nuburn. 1896-1955 Yields 6f Cotton and Corn in the Vetch Residue Experiment No.1. l'!uburn. 1934-46 Perennial Legume Rotation Experimont. Auburn~ 1942-50 Perennial Legume Rotation EJ~eriment. Auburn~ 1951-55 Cropping Systems Following I'erennil'..l Legumes. T.V., 1944-51r Timo of Planting Cotton. Monroe., !J.ice., S.M., Pratt., 1:.1ex. 1949-54 .. Row Spacing of Cotton Experiment. 1;Jiregrass. 1933 ...40 Number of Cultivations of Cotton Experiment. H.G., 1931-40 Method of Cultivation of Cotton. UiregrD,ss. 1932-40 Timo of Planting Gotton. Hircgrc.ss. 1931-40 Soil Fumigation Studies on Cotton. Tl'..11assee. 1954-55 89A-H 90.L'.-E 91A-I 92 95Jl-B 96A-D 97 Pnge 109-113 114-15B 116-20 121.l'..-B 124-125 126-29 130A-B 131 134-37 1.38 140 141 142 179-83 196 196 200 200 213li.-B 98 101-104 105 107 108 109 1571'.-E 178 179 184 185 197 XIX EXPERIMENTS ON CORN Tablo Page Tl.Jo Yoo.r Rotation Fortiliz or EXporiment ~ Alice., Alex., Brel".,"Nonroo., Pratt., S.N., T.V., vJiregrass, 1930-54 ' lA-M Response of Cotton and Corn in a Two-Year Rotation to N, P2 0 5 and K20 ' in Fertilizer Formula EXperiment, ~lex., KLic () ~~ Brew., Monroe., Pratt., S. N., T.V., vliregrass 1930-43 2A-B Tho Yield of Cotton and Corn in Formula" dnd Rates of Fortilization Experiment. Sand Nt. 1944-54 4 Effect of NPK and Limo on Ten Difforont Crops at Tuskegoe. 1939-48 5 Effect of N:i.' K and Lime on Oats, Corn, Kobe Lespedoza and Soybean H1'.y in a 4-Ye<1' R~tation. Tuskogee. 1942-48. ",. 6 Fertilizor Strip Test on Corn at the Gulf Coast Substation ShovJing the Crop Response of n Virgin 80i1 to Fertilizors and Supplements. 1953-55 14 The Effect of 4-10-7 Fertilizer on Yield of Corn. U. c. r. 1949-55 15 The Effect of one vs two Cultivations on Yield of Corn. U. C~ f. 1949-52 16 Sources of Nitrogen No~ 1~ S.H., T. Vo, HoG., 1929-45 . 31 Sources of Nitrogen No. 201946-53. 1'-1onroo., S.M.; T.V.,'W.G. 32 Corn Vlirioty SpaCing and Rete of Hitrogen 1950-53. H. G., T. V., S. JvI" L. C. r. 34 Commercial Ni trdgcn in f.ddi tion to a Good Crop of Vetch on Corn tr. Co f. 1949 41 Org.:;nic Mattor and Fertilizer Test with :Peanuts Dug, Pel'tnuts Hogged and Corn in a 3-Yoar Rotation. H.G. 1942-51 53 Influence of Rates of fhosphorus and ? dtash on Yields of Corn Fertilized with' 80# of' Nitro[!:en 194'7-51; 1.1ox., Alico., Brow., Honroe., Pratt., Tusk., Gulf Coast., S. M., ried. 56 Residual Effects of lhosphatos as Measured by Crop Yiolds in a Rotation of'ecrn and Cotton with Winter Legumes 1946-49. T.V. Pratt., l-T.G. 58 Rosidua1 Effects of rhosphates ae IvIeasured by' Crop Yields in U' Rotc.tion of Corn and Cotton 1930-45. T.V., !';lox., Honroo., Hire[$rass 60 Corn :.l.fter Kobe Lespede zQ; Alexandria. 1942-43 70 Value of Side Dressil1[C Corn lli th Potash Following Kobo Lesp. !~10xandrici.. 19L,2-43 71 Kinds lind'Rates'of Limo 'in a 2-Year Rotation. Prattvi11e~, S.M., T.V., H.G~, 1')30-49 75 Effoct of Lime, Bllsic Slc.g Ilnd SuperphosphQte on a T'.Jo-YeQr Rotation of Cotton. BreHton. 1933-34 77 Hinor Elements to Corn. Monroevi11o. 194$-51 80 Effect of Zinc on Yield of' Corn. Brollton, lTiregrass. 1953-55 81 Effect of 11inor Elomonts on Yield of Cotton, Corn, rOD.nuts Lupine, Vetch, A. \,T. Pons md Crimson Clever, 1941-51. ~~ 1-14B 15-16 20 21 22 29 30 .30 45-46 47-48 50!.-B 54 61 66 68 78 78 82-86 88L,-B 9.3 94 , ~ 95A-B 98-99 100-101 The Yiolds of Crops in Cropping Systems Experiment. T.V., 1930-53 The Yields of Crops in Cropping System Experiment. S.M., 1930-53 Tho Yields of Crops in Cropping rystems Experiment. H. G., 1930-53 . Cropping System; Tuskegeo; 1939-53 Hethod of I'lnnting Summer Legumos in Corn. Brewton. 1931-43 Method of Planting Summer Legu~es in Corn~ vI.G. 1933~38 Mothod of Planting Sununel"; Legu:::loS in Corn~ I'ratt. 1931-54 Hothod of I'lnnting Summer Legumes in Corn. T.V. 1931~45 ' Maintaining Yields FdllO\dng reronnia1 Legumes. Monroe., S.il., i?ratt., 1949-54 Corn ..:'li'tor Kud~u. Honroevillo. 19/+2-53 The Yiold of S'-1eot l~ otntoes, Corn, Cotton, Croto.1aria -and \J.Lo in'SvJoot rotato Cropping System E:k"Periment. Brow., fratt. 84 85 86 87A-B 88A-B 89A-H 90A-B 102-.3B 104-5 106-8 .. 109-113 114-15B 116-20 121A-B 911.-1 92 931. 95A-B 122 124-25 19L:.4-52 xx COR N (Contfd) Effect of Hogging and Harvobting Peanuts on Cotton, Corn and Peanut Yields. 1940-54. 1'Jiregrass Hogging vs. Digging Peanuts at VI.G. 1932-52 Soil Improving'Crops and Harvested Peanuts' Experiment. Brow., Hiregrass. 1940-54 Adaptation of Crotalaria as a Vo1untoer Crop. T.V., S.~1., Monroe. Hiregrass. 1935-39 An Experimont vIi th Volunteer Crotnlaria in Corn with Differont Datos of the Last Cultivation, A1oxandria. 1935-3$ The Old Rotation. ~uburn. 1$96-1955 The Yields ' of Cotton and Corn in Vetch Residue Expt. 1. Auburn 1934-46 The Yields of Cotton and Corn in Vetch Residue Expt. 2. Auburn. 1947-55 Perennial Legu.rne Rotation Expt; Auburn. 1942-50 Perennial Legume Retation Expt ••\uburn. 1951-55 Crepping Systems FollovTing Perennial Legumes. T.V. 1944-54 Hinter Crop Adaptability ::J::xperiment. 1931-54. Brew., .Alex., 1'1onroe. ,Lliceville , Timo of Planting Corn'Experiment. l.J.ox.; .:Uice., Brew., Pratt" S. H., T~V., "!rI.G., u.c.r., G~C., 1949-54' Width of Row. and Spacing of Corn. T,V ~, S.M., .~uburn. Brewton 1951-55 . Row Spacing of Corn EXperiment·, "!irograss 1932-1.0 Spacing Test; Sctnd Bt, 1932-33 The Yiolds of Corn and Crotalaria in Row Spacing and Time of Last Cultivation of Corn. Aloxandria 1939-45 An Experiment with Volunteer Crotalaria in Corn with Different ROvl Spacing and Time of Last Cultivation. f,lex. 1939-45 Foddor ~'ulling Experiment. Sand Mountain. 1937-1.2 Deep VS. Level rlanting of Corn. Auburn. 1951-55 Table rage 96!.-D 97 9$ 99 100 101-4 105 106 107 10$ 109 122-125 158 175 176 177 1$3 186A-B 196 126-29 13o.A-B 131 ~ 132 133 1.34-37 13$ 13$ 140 141 142 1531.-56 184 194 195 195 199B 199A 201-2 212 XXI E X I' E RIM E N T S '0 N (j; R: A I' N Table S' 0 R G HUM 5 17 36 37 3$ 39 40 43 84 85 109 153 Page Effect of NPK and Lime on Ten Different Crops o.t Tuskegoe 1939-48 Fertilizer Test for Grnin Sorghum. 1947-49. Sand Mounto.in The Effect of Ro.te of Nitrogen as ' o. Side Application on the Yield of Grain Sorghum. U. C. ' P; 1948-49 ' Ro.te 'o f Soeding Grain Sorghum 1947, 48, 49. Sand Mt. Spo.cing and Rate of Nitrogen 'ds Side Application on Grain Sorghum. U. C. p. 1947-49 Grain Sorghum Spacing Test. Sand Ht. 1947-49 Rates of Nitrogen Sido Dressing on Grain Sorghum. U. C. p. 1948-49 Rate of Nitrogen "Sidd Dressing and Spo.cing of Grain Sorghum U. C. p. 1948-49 The Yields of Crops in Cropping Systems Experiment. 1930-53 by Six Year Period. Tennessee Vo.1loy The Yields of Crops in Cropping System Experiment 1930-53 So.nd Mt. ' Cropping Systems Following ' Perennia1 Legumes. Tenn. V. 1944-54 Swoet Sorghum Vo.riety Test. So.nd Mt. 1950-53 ExrERIMENTS ON 21 31 52 52 53 53 54 55 98-99 100-1 142 175 ANNUALS LEGUMES SU!!lln.er Qroto.lnrin Tho Yield of SvJOet Poto.toes, Corn, Cotton, Crotalaria nnd " 1~inter Legumes in S,,,eet rotato Cropping System 95A-B 1944-52. Brewton, Prattville. -, Adaptation -of Crotalaria'ns a Volunteer Crop 1935-39. T. V., 99 S. M., Monroeville. Wiregrass. An Experiment with Volunteer Crotalnria in Corn with Different 100 Dates of the Last Cultivation. 1935-38. f~exnndria 135 Crotnlario. Variety Test 1934~35. Brewton 1.36 Crotnlaiia Strain Test 1932~3; Brewton 137 Crotalaria V ariety Test~ 1934~35. Aliceville 138 Crotalaria Strain Test ' 1932-33. f.liceville 139 Crotalania Strain Test. 1932-33. Alexandria 140 Crotnlo.rio. Varioty Test 1934-35. ~le~~dria Tho Yield of Greon Matter -and Soed in Crotalaria Variety 141 Tost. 1937. Sand Mt. Tho Yields of Species ofCroto.lnri.-a. and Miscello.neous 142 Summer Legumes. 1932. Hackleburg 143 Tho Yiolds of Crotnlaria in Vnrioty Test. 1934-35. Hackleburg 144 Tho YIeld of Crotalario. in Variety Test nt Lafayetto. 1934-35 The Yield of Species of Crotnlnria and Hisc. Summer Legumes 145 1932-35. Lafayette Vield 146 The Yield of Croto.lo.ria in Variety Test 1934-35. Pratt. The Yields of Specie'S' of Crotalaria, Miscellaneous Summer 147 Legumes. 1932-33. Prattville The Yield of Crotalario. in Variety Test at Monroeville. 1932-33 148 The Yields of Species of Crotaldria ' 't1lld Hiscollaneous Summer 149 Lef';umes at M onroeville. 1932-33 150 The Yield of Croto.laria in Vnriety Test 1932~ G astonburg 151 The Yield of Crotl".lr.ri".. Variety Test 1934-35. Gnstonburg The Yields of Corn and Crotalarin. in ' Row Spa.cing and Time of Lo.st 183 Cultivo.tion of Corn Experiment. 1939-45 • . Alexandria An Experiment \d th Volunteer Crotalnrin in Corn with 'Different ROvl Spacine; ,end Time of Last Cu1tivo.tion. A1ox. 1939-45 ' XXII 124-5 132 133 165 165 166 166 1&7 167 168 169 169 170 170 171 171 172 172 173 173 199B 1991. LEGUMES ANNU1U3 Ta.b1e Sur:1lllcr (Cant 'd) Lesped~ Pago Effect of NPK and Lime on Onts, Corn, Kobe Lespedcza and ' Soybean Hay in a Four-Year Rotation. 1942-48. Tusk. Corn l~ter Kobe Lospedeza. 1942-43. l~e~~dria Value of Sido Dressing Corn with rotash Following Kobo 'Lespedeza. 1942-43. ~lexandria Cropping System 1939-53. Tuskegoe Annual Lespodoza. Upper Coastal Plains Varieties of Annual LospedoNa. Upper Coastal Plain. 1952-54 Peanuts Effect df 'NPK 'and Lime on Ton Different Crops at Tuskegee 1939-1948 Peanut Fertilizer and Spacing Experiment 1936-43. Wirograss Effect of Organic Matter on the Growth and on tho Diseases of Runner Peanuts and Blue Lunine. 1947-51. W~ G. Organic ~~tter and Fertilizer Test with Peanuts Dug, Peanuts Hogged and Corn in a Throe-Year Rotation. 1942-51. W. G. Rates of ' Potttsh in a Two Ye l1r Rotation of Cotton and Peanuts 1947-54. Hirograss Two-YoL'.r RotL'.tion of Cotton and Dug Peanuts 1951-54. 1T. G. A Rates of Potash in' aT";Jo-YeL'.r RotL'.tion of ' Cotton and Peanuts 1941, 43, 45, 47. Sand Ht. Tonn V., 1tJiregrass. and Alice. Effect of Lime and Potassium on Yiolds of Dixie Runner Poanuts Auburn 1950- 54' Maintaining Soil Fertility and Crop Production on Soils Cropped "lith HL'.rvested reanuts, J.uburn. 1950-55 The Yield of Crops in Cropping Systems Experiment. vliregrass 1930-53 Effect of Hogging and Hnrvesting Peanuts on Cotton, Corn and Peanuts Yi.clds 1940-54. lTiregrass Hogging vs. Digging Peanuts at H. G. 1932-52 Soil Improving C~ops L'. nd Harvested Peanuts Exporiment 1940-54. Brewton, Hiregrass Perennial Legume Rotation Experiment. nuburn. 1942-50 Perennial Legune Rotn.tion Experiment. Jmburn. 1951-55 The Yield of Spanish Peanuts From Planting Different Rates and Conditions of Sced at Different Dates. 1943-47 Eight Locations . Date of Planting Spanish and Runner ?oanuts. 1942T Aliceville The Yield 'of Spanish and Runner Paanuts in a Spacing Test. 1939-40. Alexandria Spacing Test vIi th Runner Peanuts 1950-5/H HiregrL'.ss D ate of Plnnting Runner Pennuts 1939-46. Prattville The Yield of Runner and Spanish Peanuts on Various Soil Types and tho Effect of' Irmocu1ation on Yield ef Spanish and - Runner Peanuts 1941. f~ 6~~ndria Peanut Cultivation Exporiment. 1939. l!iregrass 6 6 70 71 f!!7t-B 22 78 78 104-5 214 214 198 199 5 9 21 24 60 61 73 74 76A-B 79A..B 80-8il. 102-3 126-9 1301..-B 52 53 65 66 68 72 73-74 86 96A-D 97 98 107 108 160 161 180 181 182 187 188 131 140 141 18., 186 197 198 198 203 204 Soybeans Effect 6f 'NPK and Lime on Ton Different Crops o.t Tuskegoe. 1939-48 Effect of NrK nnd Lime on Onts, Corn, Kobe Lospedezn and Soybean HeW in' a Four-Yoar Rotntion.1942-48. To.sk. Soybonn 'Vnricty Tasting'in l~nbamn. 1943-54. Fairhope, Camdon, ~uburn, Ta11asseo, Bello Mina and Crossville XXIII 5 6 152 21 22 17M~ 171J3 LEGUMES lJ:TNU1J,S SUIlDer (Cont'd) ~ther " Table Surnrnor Lagunes 5 75 77 84 85 86 8811-B Pago Effect (if 'm'K nndLLit!e on Ten Different Crops at Tuskogee 1939-48 Kinds ::m.d Rntes of Lime ' in a 2-Yoc,r Rotation 1930-49. Snnd Mt., Tonn. V., vliregrnss Effoct of Lime, Basic Sla~ and Superphosphate on a 2-Year Rot~ti0n of Cotton, Winter Legumes nnd Cern, Summer Legumes. 1933-34. Brewton The Yio1ds of Crops in Cropping- Systoms FJxporimont. 1930-53 . by 6-Ye~r Periods. Tonnessee Valley The Yields of ' Crops in Cropping System Experiment 1930-53. 'Sand Mt. The Yields of Crops in Cropping System Exporiment. 1930-53. Hiregrass Method of f1anting SumMer Legumes in Corn 1931-43~ Brewton Mothod of f1anting Summer Loeumes in Corn 1933-38. W. G. Methed of rlanting Summer Legunes in Corn 1931-54; Pratt. ' Method of I1rIltirig SUr.uIlOr Legu:mos in Corn 1931-4.5. Tonn. V. The -Old Rotation. -:.v_ burn. 1896-1955 Alyce Clover. Alicoville Sur.uner Legume Varioty Test 1938. llicevi110 lJ~NULLS 21 82-86 88A-B 98-99 100-101 102-3B 106-10$ 109-113 114-115B 116-20 134-137 158 164 S9A-H 90A-B 91A-I 101f'104 127-2 134 Win tor Two Year Rotation Fortilizer ~er5.mont. 1930-48. IJ.ex., Brew., Alice., Monroo., fratt., S.M., T.V., vJ.G., 1930-54 The Effect of Organic tfutter on the Growth and on the Diseases of Runner Peanuts and Blue Lupino 1947-51. \-Jirograss Residual Effects of fhosphates as Heaaured by Crop Yields in n Rotation of ' eorn and Cotton with TJinter Logumes 1946-49. T. V., Pratt., Wiregrass Kinds arid 'Rdes of Lime in a 2-Year Rotation 1930-49. Pratt., S.H., T.V., H.G., Effoct of Lime Basic Slag and Superphosphate·ona Two-Year Rotation of Cotton. W.L. and Corn, S.L. 1~33-34. Brew. CrinsonClover ' - BoraxSoed Yield Test. 1950-53; Jruburn; 1951-52, Piednont; 1950-53, Brewton; 1951-53, L. C. p.; 1950-5,~, Tuskegee; 1952-54, Sand Bt. Yields of Crimson Clover Seed on Several Soil -Types in'l'J..abruna as Influenced'by RQtes of Borax. Auburn, Brewton, S.M., L.C.P., ~iod., Tusk. Effect of l1inor Elements on Yield of CC'tton, Corn, Peanuts, Lupine; Hairy Vetch, tustrian Winter Peas and Crimson Clover. Auburn. 1941-51 Fertilizor flQcement - Test for Ha:i.ry Vetch 1932-34. Alex. The Yields of Crops in Cropping Systems Experiment. 1930-53 by Six Yenr Period. Tennosseo Valley The Yields of Crops in Cropping System Experiment 1930-53. Sand Mt. The Yields of Crops in Cropping System Experiment 1930-53. 1.rirogrnss - . . . 1-14B 52 58 75 77 78 79 82 83 84 85 86 88A-B 89A-H 90A-B 911\-1 60 66 82-86 88A-B 89-91 92 95A-B 96 98-99 100-101 102-103B 106-8 . 109-113 114-115B 116-120 121A-B 123 124-25 130A-B 131 134-37 Method of Planting S1.lr.lI'1er Lcgrumes in Corn. 1931-43. Brewton Method of f1anting S~or Legunos in Corn. 1933-38. W. G. Method of Tlnnting Sumner Legumes in Corn; 1931-54. Pratt. Hotbod of r1nnting Summer Legunes in Corn. 1931-45. Tenn. V. Maintnining Yields Following Perennial Legumes 1949-54. Monroe., 92 Sand Mt., Pratt. -, 94 froduction of 1l.1falfa Fo11oVJing hr~ L. 194'5--47. l'J.ex. The Yield of Sweet rotntoes, Corn, Cotton, Crota1aria and W.L. in S\Jeot foto.to Cropping System Experiment 1944-52. Brewton, 95A-B Prattville. 97 Hogging vs. Digging Poanuts. vIircgrnss. 1932-52 Soil Improving Crops and Harvested feanuts Experiment. 1940-54. 98 Bro'lrlton, Wiregrass '. 101-104 The Old Rotation. Auburn, 1896-1955 XXIV LEGUMES lJ1NU:.LS - 'Wintor ~Cont' d) The Yields of Cotton-'and Corn in Vetch Residue Experiment 1. l..uburn. 1934-46 The Yields of Corn in Vetch Rosidue Experiment 2. Auburn 1947-55 Hinter Legune Variety Test. Lafayette, .",lex., Brewton, Monroe., Prattville Hinter Legune Varioty Test. Upper Codsta1 Plain ' Ume '''inter LeG 'Varie t y Test (Enrly vs. Late Cuttings), vliregraS's, Tenn. V., Sc.nd Mt. \-Jinter Legume Variety Test. Firegrass Resu1t.s of Hinter Legume Variety Test 1934-36. Menroevi11e ?ounds of Green Horbage per acre Produced by Entries in tho Hinter Legume Variety Test 1934-36 Results of H inter Leg'llrles: V,~riety Test 1934-37~ Monroovi11e Pinter LeG umo Vctrie ty Test. Snnd Mt., Tenn. V., Wircgrass Vetch Fertilizer Placement Test. Alexandria ' V etch Vnriet y Tost. Aliceville, Brewton, Monroovil1e, Prattville Reseedin0 Leglliaes~ Auburn. '1950-52 Reseeding Legumes. 1950-52. Camp Hill Hinter Crop /'va~labili ty ExperiMent ~ 1931-54. Brewten Hinter Crop .,;. vailability E:h.'PeriI'1ent~ 1931-54. JJ.exnndria ' "Tinter Crop Availability Exporinent. 1931-54. Monroeville Hinter Crop AVQi1,~ bility Experir:lent. 1931-54. llliccvi11e Time of Planting Crimson Clovor. Brewton. 1952-53 FEBENNlliliS A1fa1fll Alfalfc. Fertilizer Test - Gulf Coast 1944 f~fa1fa Fertilizer Te st~ Brewton. 1945 ' l.lfalfn Fertilizer Test. Prattville. 1944-45 " f~falfa Lim and Fertilizer Experiment No~ 1; Tenn. V. 1931-36 o Alfalfa Lime and Fertilizer Experinent No.1. (Revisod). , Tennessee V. 1937-41 LiMe, Phosphate ru1d Pot ash ExperiMent - r~a1fa. Tennesseo V. 1933-37 LiM Phospho.to and Potash Experiment - fJ.fa1fa (Revised). e Tennessee V alley 1938-41 Effect of Potash'andMIDnor Elements on 1D.fa1fa Hay Yields. tJ.icevillo, 1946 Production of Alfalfa Following \-!inter Logume. Alexandria 1945-47 }ftxtures of A lfalfa with Different Species and Rates of Seeding of Grasses with and without Nitrogen 1952. Tonn. V. Clover Yields of llhite Clover Fran Uniform "Rock rhosphate Test. Lo\<1er Coastal Plain, Tuskegee. 1953-54 Rod Clover Strain Test 1948-9, To.lla5see, PiodMont. U. C. : ~. UnifoITl Red Clover Varioty Tos t 1952. Ta11assoe . , Rod Clovor Strain Teot. To.1la8soe SUDnary of "1r.Jhito 'Clovdr Variety Tosts in !l.1abnmn. r .B. U., U.C.p., Tenn. V. 1952-54 Kudzu Kudzu Forti1izer ·a.t "P1anting Tioe. Bre'Wton. 1936 Corn after Kudzu 1942-53. Monroeville Effect of "Time and Frequortcy of Cutting and Yields of Kudzu Hay. Monroeville. 1933.;.42 Kudzu for Hay. Alexandria. 1935-44 Porennia1 Legume Rotation E}""'Periment. Auburn. 1942-50 Perennial Legume Rotation Experiment. Auburn. 1951-55 ~:)I1T _ 105 106 110 111 112 113 114 115 116 117 lIS 119 120 121 122 123 124 125 131 13S 139 14:M-B 144 145 145 146 147 148 149.11 149B 150 151 152 15.3A':"B l~4A-B 15.,A-B 156 160 IS 19 20 24 25 26 27 69 94 126 321l-B 33 34 38 39 40 41 77 123 157 61 127 128 129 130 62 158 159 159 160 21 93A 194 ISS) 107 108 35 122 210 211 140 141 LEGUMES PERENNI1.LS (Cant r d) Sericae LAspedeza Lespedeza Sericee Fertilizer Experiment. Sand Mt. 1941-44 Responso of Sericea to Rates of Concentrated Superphosphate Lime, Sulfate, Iotash and Hinor Elmnonts at ·9 Locations 11aintaining Yields Following Perennial Legumes 1949-54. Henree., Sand Mt., Pratt. . Effects ef Number of Cutting and Time of Cutting Sericea Lospedeza on Forage and Seed Yields, Prattville Effect dfRilt6 of Seeding Sericea on Yield of Hay and Seed. 1933-35. Brewton Effect of Time of -Cutting and Fertilizor on Sericea Hay and Seed Yields. 1933-35. Monroeville Effect of Time of ·Cutting and Fertilizers on Sericee Hay and Seed Yields. 1933-35. Brewton Effect of Row Hidth on Yiold of Sericee Hay and Seed 1933-35 Bre1.Jton Effect df Rate of Seeding Sericea on Yield of Hay and Seod. 1943-47. Aliceville 28 8.3-2 92 189 190 191 192 193 198 42 97 1211.-B 205 206 207 208 209 214 Table Page EXPERIMENT ON PERMANENT PASTURES 13 22 23 47 48 49 50 51 126 132 133 28 361J.-B 37..\-B 57 581l. 581'.. 58.'1 58B 157 161 162-63 Grazing Days and Beef Yields From Rates of PK and Lime on Permanent Pasture on Eutaw Clay 1946-48. Black Bolt Pasture Fertilizer Experiment. Tier 1P 1938-41. Tonn. V. Pasture Fertilizer Experiment 1940-41. Sand Mt. Soed Yields of Tall Fescue Fertilized with Different Rates of Nitrogon. Black Belt. 1951-53 Tall Fescue Grazing }bnagemont Test. Black Belt. 1949-50 Tall Fescue Nitrate Grazing Management Test. Black Belt. 1950-51 Tall Fescue Nitrate Grazing l1nnagoment Test. Black Belt. 1951-52 Performance of Some Individual Steers on the Tall Fescuo Nitrate Grazing Experiment. Black Belt. 1950-52 Mixtures ef Alfalfa with Different Species and Rates of Soeding of Drasses with nnd without Nitrogen. Tenn~ V. 1952 Crops fer rer.manent Pastur~. 1932-36. Monroeville, Brewton Grass Logmao Mixture fer Termancnt Pasture at the Tenn. V. 1937-41 EXPERIMENT ON SMALL GRAINS Effect of 1JTlK and Lime on Oats, Corn, Kobe Lespedeza and Soybean Hay in a Four-Year Rotation. 1942-48. Tusk. Oat Fortilizer Experiment on Sumter Soi1~ 1935-40. B. B~ Oat Fertilizer Experiment on Sumter Soil. 1932-40.B. B. Rates and Date ' of Lpplicntion of N to Oats 1952-54. L. C. p. U. C. r., riedmont., Black Be.ilt Rata of Topdressing NitrOGen on Oats. U. C. p. 1945-50 Sources of Nitrogen for Oats. U. C. p. 1945-50 Time of /.pplying Nitrogen to Oa.ts. U. C. p. 1945-50 Tho Yields of Crops iIi '-Cropping Systems Experimont. 1930-53 by Six-Yoar Pori~ds. Tonnossee Valley The Yields of Crops inCroppine Systems Experiment. 1930-53 by Six-Year Periods. Sand Hountain The Yields of Crops in Cropping Systems Experiment. 1930-53 by Six-Year Periods. Wirograss Cropping Systems. Tuskegee. 1939-53 Sources of Nitrogen for Oa.ts on Sumter Soil. 1952-54. B. B. The Old Rotation. tuburn. 1896-1955 XXVI 6 29 30 35 42 44 45 22 43 44 51 54 55 55 98-99 100-101 102-l03B 104-105 122 134-137 84 85 86 87A-B 93B 101-104 T11.bld SMALL G R A INS (Cont'd) 100 163 164 165 166 167 168 169 170 171 172 173 174 Pago Cropping Systems Following Perennial Legumes. Tonn. V. 1944-54 Oat Date of Planting - Mothod of Utilization Variety Expt. Grain Yield. L. C. p. 195~55 Oat Date of Planting -Method of Utilization Variety Expt. Dry Forago Yield. L. C. f. 1953-55 Oat Dato of Planting - Method of Utilization Varioty Expt. Grain Yield. U. C. p. 1952-55 Oat Dnto of Ilanting - Hothod of Utilization Variety Expt. Dry Forago Yiold. U. C. r. 1952-55 Oat Date of flanting - Method of Utilization Variety Expt. BrQi~ Yield. Tonn. V. 1952-55 Ont Date of Plantine --Method of Utilization Varioty Expt. Dry Forage Yield. Tenn. V. 1952-55 Ont Dnto of i 'lanting - Method of Utilization Variety &cpt. Grain Yield. Gulf Coast 1953-55 Oat Date of I'lanting - Method of Utilization Variety Expt. ForaGo Yiold. Gulf Coast 1953-55 Oat Dato of Planting - Method of Utilization Variety Expt. Grain Yield. Auburn. 1952-55 Oat Date of Planting - Method 'of Utilization Variety Expt. Forage Yiold. Auburn. 1952-55 Oat Date of rlanting - Method of UtiliSlation Variety Expt. Grain Yield. Piodmont. 1952-55 Oat Dato of Planting ~ Method of Utilization Variety Expt. Forage Yield. Piedmont 1952-55 E X PER I ME ' NT S Sug~ 142 188 188 189 189 190 190 191 191 192 192 193 193 ON S U GAR CAN E 12 162 27 187 Cand Fertilizer Formula Experiment 1940-46. Brewton Sugar Cane Variety and Time of Planting Tost 1950-54. Brewton E X PER I ME N T SON S WE E T POT A T OE S 5 Effect of NrK and Lime on Ten Different Crops at Tuskegee. 1939-48 , Forti1izer Formula for Swect rotntoes. 1937-43. Brewton Monro evi 110 The Yield of Sweet Potatoes, Corn, Cotton, Crotalaria and 1.--Tintor LoguT.1oS in Swoot Potato Cropping Systom Expt. 1944-52, Browton, Frattvillo 21 26 124-125 11 95A-B XXVII Introduction to tho Two-Yenr Rotation Forti1izer Experiment on Cotton, Corn, and Winter Legunes This experiment was started in the fall of 1929 at eight locations in t1abama. It is a study of the effocts of ferti1izors and 1egumos on yields of cotton and corn in a two-year retation with winter legumes being crovm for groon manure preceeding the corn crop. the corn through tho 1945 crop. at n11 locations throu~h Sumner 1egumos wore p1pntod in Those experiments woro conducted uniformly Somo changes wero nndo in 1949 and tho rates The rate 1948. of potash at the difforent locations vary some since that tine. of phosphate at tho Wireg~ass Substation is also different from the other nitrog~n locations since 1949. beginning in 1949. Rates of wero increasod at nIl locations Results of these experiments have been sumnarized in the tables which follow. Yields from all plots are reported in pounds of seed cotton, bushels ~reen of corn, and pounds of weight of winter 10gume produced per aero. Tables lE through lL give surnnaries of yields at each location by periods fran 1930 throuch 1954. Tables lC and lD give sunnnrios for all locations for tho periods 1930-48 and 1949-54, respectively. Tables 1t, 18, and 1M give sunmaries of the response to the various treatments at all locations for cotton, corn, and winter 1agunos, respectively. Those tabler. show results of the primnry comparisons which can be Since these data arc so extensive made of yields from these oxperiments. and results vary so much betvlOen locations, these sunnary tables are presented instead of a discussion of the results. vfuen applying data fron these smunnry tables to the individual locations, one should carefully check the treatments l>11th the table for the location concerned. Soil types on '·Jhich these experiments are located at the various substations nnd experinent fields are as follows: J~oxnndria - Decatur silt 10~ Prattville - Greenville sandy loan cl~ Llicevillo - Prontiss very fino sandy lonm Bro"\-Jton - KaMa fine sandy loam Monrooville - Ha[·;nolia fine sandy loan Sand Mountain - Hartsells fino sandy loam Tennessee Valley- Decatur clay loan WiroGrass - Norfonc fino sandy loam 1 Table lA Summary of Response of cotton to Treatments m the Two-Year Rotation Fertilizer Exper~ent at Eight Locations 1930-54 (S~ary of Tables le to lL) Response to: Hi th : Treatment: Increase in Lbs, Seed .Q..otton po r ' AFcre : .Alex~ · ": Alice. . : Drew. . : Honroe • . : Pratt~ · ": " Sand Ht~: Tenl1.V~: Wire.gruss : Average : : 30-L.J~ !49;"54: '0';"48 :49-54: 30-48 :49-54: 30-48:A9-Skl,.30-48 :49.;.54:30-L..8_:49-5l.: 30-k8 : !t9-S/.".: ~0-48:49-54: 30-L.8 : 49-5!.r_ 333 93 134 -51 -31: -56 113 109 333 . 47 429 700 351 61 92 21 331 229 237 -251 88 -32 36 -39 128 448 40 230 224 381 P Ie 2N L 2 Minus 1 ,P . 3-2 PK & Leg.4-3 407 172 184 -78 31 20 280 174 197 P PK 6-2 L L K 2N Legume 2K-K ' 2P 2NPKL ...... 7-3 8~PK 8-4 PL7-6 PKL&Lcg.8-7 HPKL 11-10 N2PL 15-14 N2KL 15~16 Legume 8-9 62 453 298 -73 123 102 649 277 362 387 555 32 238 323 593 640 277 254 217 29 171 155 396 434 430 259 178 195 250 141 257 253 45 103 50 253 197 526 16 174 201 546 255 214 318 . 55 437 53 768 6 383 -24 743 264 934 1525 788 340 256 68 32 325 822 1205 249 439 155 -61 39 10 539 126 121 -2 715 231 431 3c)9 266 L~08 -4 457 55 467 27 -6 -102 -69 -16 522 88 124 .-59 -50 -40 97 134 217 -20 629 282 107 243 58 424 329 122 67 556 258 305' 129 25 693 768 273 187 468 156 99 60 1,16 '047 1038 46 to 263 227 226 -44 71 200 377 295 245 7 115 71 403 201 195 51 922 (11 88 GO 240 -6 337 485 38 -62 95 272 235 50 274 332 -7 ....1l4 220 605 755 342 347 45 68 3LJ4 717 Rate of Fertilizer liaterials lS30-l.8 p .: 600;;: Superphosphate per rotation - 200 to cotton, 400 to vetch K 75:> l:uriate per rotation - 25 to cotton, 50 to vetch 21 ; 200;:' Sodiun nitrate r;er rotation - 100 to cotton, 100 to corn L = 2000:: limo appliec1 in 1930 _-----..-..,.....-------_ . = = 1949-54 P = 800t SuperPhOSPhute per rotation - 400 to cotton, 400 to vetch (Hiregrass 60o,-;! superphosphute per rotation) K = lQ(~;! Hurin.te per rotation - 50 to cotton, 50 to vetch (Aliceville, Prattville and Ten.l1essee Vplley 75# Muriate per rotation) (Brm,rton 150:~ muriate per rotation) 211 =400;; sodiu."il nitrate per roto.tion - 200 to cotton, 200 to vetch J.T. ·Cope Table IB SUJ!IIIIffi'y of' Response of Corn to TFeatments in the 1'\.10 Year Rotn.tion Fertilizer Experiment .at Eight Locations 1930-54 (Summary of Tables 1C-lL) Response to: · · ~Tith :Tre.atments; : : Increase in Bushels of Corn Der a~ : . Monroe. . : Pratt. fJ.ex. Sand Mt. : Tenn. V. : Wiregrass :~verage lllice. : Bre\.Jton :30-48:49-54:30-48:49-54:30 48:49-54:30-43:49-54:30-48:49-54:30 48:49-54:30-48:49-54:30-48:49-54:30-48:49 . 0 .. ~ P K 2N L L L K 2N LeeUT!le 2K-K 2P 2NrIIT. 2 Minus 1 10.4 P 3-2 0.4 PK & Legume 4-3 1.7 P 6-2 -1.4 PK 7-3 -1.1 2NPK 8-4 -2.8 ' PL 7-6 0.7 PKL & Leg.8-7 0.0 NPKL 11-10 16.2 H2PL 15-14 1.3 N2KL 15..;.16 5.8 Legume 8~ 14.0 13.1 16~6 16.5 4.3 16.2 9.4 -0.4 0.8 1.6 4.1 5.1 2.5 1.7 1.G 0.4 3.7 8.4 2.0 -1.7 -0.3 -1.7 -1.3 -0.6 0.3 -1.5 1.9 0.1 4.8 7.1 2.5 -2.8 1.0 0.1 3.5 3.5 0.2 -0.2 3.0 3~4 10.2 12.8 4.7 0.4 0.9 0.4 2.4 4.8 -0.3 13.8 26.4 10.4 19.7 13.8 22.6 1.3 -1.0 -1.2 1.9 1.5 0.0 10.5 5.2 5.9 --18.4 21.3 17.6 15.1 27.8 10.3 14.9 10.6 5.4 5.0 1.1 2.1 -1.0 1.1 -0~5 4.7 -1.9 -2.1 2.0 -1.7 -1~4 L~.2 -1.8 -2~2 2.3 1.3 2.8 1.2 1.0 -1~3 10.8 29.1 12.4 4.8 -0.3 -0.2 2.8 12.0 6.9 3.5 -- 17.4 19.3 9.6 23.4 4.5 -1.3 10.4 8.8 -0.1 -.4 1.8 3.2 1.8 4.2 8.8 26.1 -0.3 -1.2 2.4 -0.3 2.7 17.1 -0.7 -1.5 8.!~ 0.9 1. 2 0.5 . 8.8 27~3 -0.5 -2.3 -0.8 -1.8 1.7 1;7 1.0 1.5 1.4 -0.6 0.0 0.. 3 .1 -1.2 0.1 0.2 3.1 4.6 19.0 2.6 1.5 1.2 1.7 -.2 1.7 2.5 29.9 27.0 15.5 12.9 14.3 1.0 21.7 0.2 -0.1 0.1 -0.4 0.7 O~2 3.4 7.7 20.9 7 .!~ 3.2 24.2 50.0 13.3 18.8 8.1 5.8 14.2 13.4 3.1 4.2 1.9 3.'7 .6 4.9 1~2 12 .8 1.3 19.2 ('\ Rat.es ·· of Fertilizer Hateria1s 1930-4C p 600!~ superphosphate per rotat ion - 200 to cotton, 400 to vetch K = 75;:( Huria.te per rotation - 25 to cotton, 50 to vetch 2H 20r':# SoditL1U nitrQte per l"otntion - 100 to cotton, 100 to corn L 20o~i lL~e a.pp1i ed in 1930 = = = 1949-54 P 800;:~ superphosphate per rotation - 400 to cotton, 400 to vetch (Wirep:r ass 600( superphos phate per rotation) K 100,:( muriate per rotation - 50 to cotton, 50 to vetch (Aliceville, Prattville and Tennessee Valley 75j muriate per rotation) (Breuton 150# nruriate per rotation). 2N 400:) sodium nitrate per rotation- 200 to cotton, 200 to vetch = = = J. T. Cope Table W[ Surnrnnry of Response of Hintor Legumos to TreatI:1ents in the ~.Jo Year Rotation Fertilizer ExperiInent at Eight Locations 1930-54 (S~mmary of Tables 1C to 1L) -- - _ ._- .. Increase in PoUJ1ds Green Weight of..J!intor Legune __ ' A 1-Tith :Treat-~ IJ.ex. Juice. BrevJton: Monroe. : Pratt; .' : Send Mt • . : Tenn. V : 1Tirograss : llvorage 0 :nent :30-M3: 49-54: 30-48:49-54 :30-48 :49-54: 30-4f~ :49-54: 30-48 !49-54:30-48 :49-54: 30-48:49-54: 30-48'~'49-54: 30-4,. : ,~9-5t± P 7817 340 217 516 1270 593 1094 -460 8821 600 2533 3092 3717 371 1225 -813 7669 1473 -14 - 83 379 220 1935 -173 8638 3762 946 -917 488 -33 5167 425 2080 1100 960 1202 3109 3433 3007 1284 4826 -133 2002 2019 4208 4460 2056 2254 5878 1190 413 769 3319 2483 3740 -423 6941 2481 1109 4917 3982 1864 1546 -1009 5342 2160 -154 486 20 -404 1694 -578 910(l 5121 1129 2067 671 -1267 3725 - 809 4102 1329 1393 1775 3637 2257 3191 2987 2800 5996 3565 10308 4833 9543 521 13 8279 380 483 1358 1836 1502 85g 149 11235 1643 762 1517 908 626 1034 480 2714 765 l220 1468 2253 1663 1550 630 849 1121 -724 38 -11 -1257 1072 -1970 54g5 1092 565 936 1978 1468 2134 55 6675 2174 1719 2,037 3034 1200 3171 -115 Response to: P K 2N L L L K 2N Ler,1IDe 2K-K 2P 2NPKL 2-1 3-2 PK & Log.4-3 P 6-2 PK 7-3 2NPK 8-4 PK 7-6 PKL & Leg.g-7 NPKL 11-10 112PL 15-14 N2KL 15..;.16 Legume 8-9 185 -34 557 263 161 3379 711 1302 9 354 292 2355 124 -591 662 -1134 338 799 9820 -- .. 9918 5108 9038 - 5579 --- 8968 8158 12325 4509 9310 12204 8953 12846 7403 9141 9190 11216 5821 11933 7400 16078 10977 13975 5771 -1230 8103 10770 - , ~ Ratos "of Fertilizor Hatoria1s 1930-48 P = 600) superphospho..to per rotation - 200 to cotton, 400 to votch K 75) rrmriate por rotation - 25 to cotton, 50 to vetch 2N 200;;' sodium ni trnto per rotn.tion - 100 to cotton, 100 to corn L 2000;' line applied in 1930 = = = 1949-54 P = 800) sUDerphosphato per rotation - 400 to cotton, 400 to vetch (Wir ogr nss 60n;:' snpor~)hosphato por rotation) K ~ 100/1 Huriato per rotation - 50 to cotton, 50 to vetch (fJ.icevi110, Prattville end Tennes see Valley 75;:1 muriate per rotation) (DrOlJton 15Of.~ Muriate per- rotation). . 2N =400# sodiQ~ nitrate per rotation - 200 to cotton, 200 to vetch. J. T. Capo 1'o.T)lA Ie SWT'.I:a':'3" of' Yields of Cotton, Corn, arid Winter Legumes in The Two Year Rotation Fertilizer Experiment At Eight Locations 1930-·1954 .\l:i.ce- : i':'el!- : r Iot = Tl'eet-= lTo : r1.o nt]. : 1\ !lle:~- -;-- rmdri!".: ville None 644(6) 678 24.3 ( 7) 22. 7 1731(8) 2481 977 34.7 9548 1070 35')1 9888 1204 36,,8 10105 530 2207 1467 926 33 03 10064 :1.039 34 .. 0 11158 1148 34.0 10698 448 20.0 1388 859 1562 119a 31.4 8771 1114 33.6 8544 539 22.3 1720 ' 1009 39.3 10150 1238 40.,1 11623 , T:ol1roo- : Pratt-:&.nd:Tcnn :i-lire. : AVE'lrar:q ton ....t.. vilJ.e : ville : i'its ':ValleII erass : 780 67S 326 471 774 .689 1072 27 J 33.8 24.0 31.3 25.7 28.4 26.7 346L 5601 2532 2632 5862 4177 2699 8 l - ( 2 p 388 31.0 4779 841 35.1 5879 1139 38 0 0 6839 271 22.0 2286 315 2907 5981 964 39,,9 8988 l241 4203 10272 307 2702 2869 1023 19,,0 1237 38 0 7 8196 1073 376 1.:. 7529 275 -21,,4 2001 1134 39 ,,0 9519 1452 40 0 9 9680 1188 35 0 0 4572 303 24,,6 2138 749 37.8 10055 1003 40.3 11245 1220 42.3 11658 546 30 0 7 4450 778 38 n 1 10824 42,,8 14564 117h 952 4404 10943 1147 45,,5 13103 1397 46.6 12949 832 36 8 6296 0 920 1480 .1062 41.4 40.9 30.2 6634 10911 8576 1351 1535 45.,6 40.8 7963 11291 1169 32.0 9341 94~ 37.; 895c 1165 39 •.3 1004, 139~ 3 PK 4 .Y 2NPK None 1475 41.9 11609 690 23.5 2899 758 39.0 10067 1206 42.0 12002 1436 42~9 1750 1562 1412 54.4 4005 34.4 9356 11774 10561 775 1122 27.5 31.8 2941 2601 916 1378 49.8 40.2 8409 12269 841 26.5 6049 1120 31.1 42.l 1060( 70( 27.'( }62~ 5 6 PL 11L~29 997 42 .. 5 89 ~ looJ..~4 38.( 988( 124( 41 0: 1202l 144c 42 tI_'. 1207; 280~ 397~ 7 PKL 2/ 2NPKL 1250 1609 1466 1215 43 e 8 54.4 40.3 31 .. 2 13123 11600 13127 11594 1447 1879 1546 44.8 56.1 ..42 O 12545 11613 l327.p Q 8 11829 648 21.6 2876 1050 13.4 1431 39.8 10027 1351 40.8 9957 691 24 8 3017 Q 1375 42.5 14141 553 32.2 4951 1085 19,,7 1425 4203 12524 1286 4109 12214 578 3107 4855 1412 42.7 . 15164 1480 42.7 15875 1155 37.5 6837 525 29.8 4259 5A 33~8 122~4 1450 9 None 891 1032 1061 37.9 31.9 28.7 6724 . 4213 2299 925 13~1 845 25.7· 6453 1133 16 .. 9 72: 10 11 V 5/ NPKt- 1445 1226 20.4 22.5 109:: 17.; 144c 39,,2 9932 134e W NPKL N~PKL 1451 42.2 11751 1411 44.0 11852 837 37.0 6391 42~6 '1913 1466 1407 50.3 38.0 31~2 9126 8382 10679 1721 1408 1421 49,8 38.0 32.6 9511 9480 11039 892_ 1135 29.9 33.1 3513 2888 876 26~8 12 39 8 10016 0 13 None 728 28.LI 6354 3842 1486 41 c .L, 12895 1554 1')0 ':1" ..,c:....;.) ).jl o 14 15 N2PKL 1284 1528 34.1 41.9 12005 12813 1331 1534 35.4 40.9 12190 13370 902 2g e 6 2370 605 23.5 1612 1151 30.4 3452 654 21.1 2501 1909 1610 1563 54.9 h1.7 34 04 13679 12534 15154 12295 1450 1466 2008 1604 1556 4203 54 8 41.3 34 00 13688 12826 15278 12957 0 N2P2KL c 16 N2KL 1292 39.5 8109 744 31G 7 5296 1392 1267 33.,9 33.9 3858 2953 707 982 24.9 27 .. 1 2483 1723 1336 3104 8448 780 26.9 6030 1210 33,,9 5075 663 26,,2 3255 17 None (Footnotes on Back) TablelD Summary of' Yields of' Gotton, Corn, and Winter Legumes in The Two Year Rotation Fertilizer Experiment at Eight Locations 1949-54 Plot: Treat-: Alex- : Alice-: Brew... : Jlionroe-: Pratt-: Sand : Tenn :v Jire- :.Average No : mentll: andria: ville: ton : ville : ville: Mt. :ValleYlgrass~, 1 None 830 (9) 402 21.0(\10) 19.0 2804 (11) 2229 1181 34.1 11625 1242 33.7 12225 1334 3504 14758 1255 31.9 12682 1202 32 .. 4 14717 1330 3202 15942 809 35.5 10867 981 37.1 14629 1165 37.5 15575 127 20 9 0 'W72 433 31.1 4567 867 46.0 11508 1297 51.0 13989 1556 50.0 15098 1472 50.4 14225 1008 50.7 16425 1554 53.0 17971 1809 54.2 16962 (;04 42 .. 2 5716 1584 43.0 1840 53 .. 8 17997 1708 5295 16212 1614 51.3 1818 52.2 19288 1850 57.0 742 40.1 6275 991 45.5 15375 1430 47.6 20496 1585 47.1 21625 334 16.0 1736 600 35.3 4723 1057 44.1 7523 700 833 29.1 31,6 3212 3398 1222 1257 52.5 30.3 14447 4247 1310 1586 52.1 33.5 16090 5368 550 26.1 3574 927 39.5 10249 1222 42.7 12423 1467 46.9 14142 1348 43.7 12397 923 41.5 12286 1337 46.4 15457 1538 47.5 15342 616 28.3 4572 1341 33.6 2 p 489 37.1 9198 876 42.2 9065 1431 50.6 11067 3 PK 4 NPK 1524 1434 1708 70.2 50.9 33.2 13519 16852 4644 1367 1407 49.1 31.2 15954 4149 1163 1324 51.0 31.5 15964 4285 1260 1596 49.8 31.7 16998 5357 1394 1646 52.3 33.2 17478 3387 765 891 33.5 27.4 3503 4617 1183 1363 33.8 31.5 1400 1695 46.7 32.5 14067 . 5347 5 6 It NPK PL 1118 1318 36.1 41.6 13287 . 10125 731 521 33.8 . 36.5 9950 11217 1011 37.2 15117 1114 49.3 13273 1754 54.1 15527 229 26.3 6386 1572 38.4 1627 52.2 12993 1559 50.8 11854 1252 45.2 1448 53.9 14539 1885 55.4 17918 1876 53.7 13876 197 21.9 5769 1432 1416 42.9 66.1 18217 10540 930 43.4 17442 594 52.4 8288 7 PKL 1469 1362 46.2 71.4 21167 17831 1595 1549 44.9 71.2 20358 18352 880 41.4 8425 1428 32.1 511 21.2 2274 1416 42.7 8 NPKL 1370 1185 32.6' 37.6 15129 15542 9 10: 11 None 2925 NPKL 14.2 602 442 20,0 2696 971 26.4 1168 36.8 14454 1129 37.3 13600 1058 32 .. 2 1192 36.,1 16362 1168 34.9 16625 1094 36.6 !./~ - 1210 21.0 3/ NPKL 1434 34.8 14479 1342 35.4 13254 1257 29.4 1278 35.7 18146 1331 37 .. 0 18112 1376 36.7 14250 674 18.4 2900 1549 1572 44.5 69.7 19575 16135 1540 1473 45.1 69 0 18617 12851 0 12 N}PKL 1536 46.h 14381 , . .1344 1673 . 1471 46.4 45.9 35.1 13812 5532 13217 1352 1435 44.2 30.0 1497 1647 45.8 .12.0 20374 : 6649 1359 41.6 1498 46.9 17012 1549 48.2 17811 1497 47.9 14742 555 25.3 3536 13 14 ~-2I NPK N1'2P3/4KL Nl2P1~KL 1411 42Q4 1493 58.0 U ~ 1540 1560 43.7 75 .. 4 21842 18893 :"5 2059 0 1538 1620 1477 1523 43.5 75.5 46.5 35.4 22696 21248 ' 19783 551~ 1541 1515 44 .. 0 74.5 19825 16073 724 420 37.3 20.3 4783 1793 1347 1516 45.3 35.0 16435 4285 712 808 24.5 30 .. 0 3049 3605 16 N12Pl~K1 U 15950 1713 57.4 17244 535 34.9 4490 17 None 371 15.2 1900 (Footnotes on Back) 6A 11 Basic Treatment is 400# nitrate of soda, 800# superphosphate and 100# of muriate of potash per acre per rotation. In general ~ of NPK is applied to cotton (all P 8" K at planting; ~. N at p1antin~ and 3/4 as a sidedressing) and ~ of P & K is applied to Vetch in fall before corn and ~ N is applied to corn at planting and 3/4 as a sidedressing.) Ratesof K vary with location as noted in the tables for individuaJ locations. (t 2/ All P ~ All P &K to cotton - no legumes. N- ~ to corn and ~ to cotton. & K to cotton. N - ~ to corn and ~ to cotton. ~ Cotton on plot 13 receives 600# super and 75# muriate and ~ N. Corn on plot 13 receives 200# super and 25# muriate and ~ N. No legume' on this plot after 1948. 5/ Cotton receives 400# super and 25# muriate, Vetch receives 800# super and 50# - muriate. §! Cotton receives 400# super and 50# muriate', Vetch receives 800# super and 100# muriate. ]/ Cotton receives 800# super and 1001/ muriate, Vetch receives 400# super and 50# muriate. 8/ Cotton and corn at Wiregrass are 5 year averages (1949-53.) while Blue Lupine - is a 4 year average of 2 crops. 21 ~ No legumes on plots 10 and 13. 10/ Pound seed cotton per acre - First figure in each case. Bushels corn per acre - Sr, cond figure in each case. Pounds green weight of winter legume per acre - Third figure in each case. J. T . Cope , Jr. 1<1 6B Tablo :IE Yields of Cotton, Corn, and Wintar Legumes in The Two-Year Rotstion Fertilizor Experiment ~l1oxandria Field 19.30-54 LbslJ.gre to : _ __ --.L.bs/J:.cEe to; Plot: 7/: : CSFn Ct. N 'T t t ] _0, • rea men :Cotton:Vetch :J93Lk3kW · · · · 0 -;: ·1~=42'1943;o1'48·H~3Q".48·t.an4:vglcb'1949-54- __ _ y: . . . . ory NaN03 1 Super Muriate NaN03 Super Muriate NaN03 Super Muriate Bupe Muriate NaN03 Super Muriate No.N0 60'7 '& 666 23,,5 ~ 24.5 2683 . 1 i 139/.. 200 400 812 27.7 11721 856 28.0 12806 931 28.3 13030 493 21.6 2263 200 400 687 25.4 11292 730 25.7 13265 805 24.9 12970 415 18.1 2021 100 600 75 100 600 75 100 100 25 1104 38.0 8044 1278 37.7 8397 1429 41.2 8497 547 22.7 1015 1081 35.0 8736 1213 36.5 9525 1418 37.5 9338 448 18.9 993 950 13.0 665 25.1 1208 1044 39.8 8879 1111 41.1 8.463 644 24.3 1731 977 34.7 9548 1070 35.1 9888 400 400 830 21.0 2804 1181 34.1 11625 1242 33.7 12225 1334 35.4 14758 1255 31.9 12682 1202 32.4 . 14717 1330 32.2 15942 1370 32.6 15129 602 14.2 2925 200 800 100 200 800 100 200 200 50 /.. 00 600 75 200 400 25 200 400 50 200 800 100 200 1210 21.0 - ~2J 1434 34.8 14479 1342 35.4 13254 1257 29."_;'0 \.~. 2 3 200 25 100 200 25 400 . 50 100 400 50 400 50 200 400 50 400 400 50 400 400 50 200 400 50 200 400 50 400 4 NaNO~ 1297 1204 36.8 42.5 8789 10105 556 24.2 1122 530 22.7 1467 5 6 Super Muriate 1/ NaN 03-""': Super Muriate NaN0 311' Super Muriate NaN0 3 Super Muriate NaNO;! Super Muriate NaNoi/ Super 11uriato NaNo}1 Super Muriate 3 Y 1051 926 40.8 33.3 1(;)16.3 10064 1228 1039 41.0 34.0 10679 11158 1280 1148 34.0 41.3 9786 10698 448 485 23.1 20.0 1148 1388 937 859 15.1 15.2 1379 1192 39.6 31.4 10298 8771 1243 1114 41.0 33.6 8787 8544 539 579 25.3 22.3 1283 1720 1373 1284 38.6 34.1 11227 12005 1423 1331 41.8 35.4 11138 12190 993 33.0 2531 646 902 29.6 2370 605 7 200 25 100 200 25 400 50 100 400 50 400 50 200 400 50 400 50 200 400 50 8 9 10 21 :2./ 716 17.2 840 23.4 8599 809 25.1 9475 -JI -2/ -2/ -'jj 11 1413 32.9 7416 1361 36.5 7370 527 22.8 1152 1580 37.0 9925 1624 38.3 10302 1004 30.8 1790 609 200 12 200 50 200 200 50 13 3uPG~ Muriate NaNO)! Supef Muriate .J Super Muriate NaNO 513 19.6 2726 100 400 25 100 400 50 100 50 100 800 50 800 100 952 26.7 14861 1002 27.7 15128 738 25.5 2788 569 ?J 400 14 200 800 50 200 SOO 100 200 400 50 127t 350'7 18146 1331 37.0 18112 1376 36.7 14250 674 15 NaNO~J! 16 NaNO.)! .J Super Muriate ~aN03 ~~~r late 17 ~~?~ ?A fd"~ f1S6 f61~ ~~~~ ------ -. , FOOTNOTES: 11 Plus _1/ J/ one ton marble dust por acro March 1930 and one ton again in 1933. Limed in 1954. Corn on this plot also rocoives 200# super and 25# Muriate per acre, All P & K to l egumes; all N to corn, 1I4 at planting and 3/4 as a sidedressing. ~ ~ll P & K and 1I4 N applied at planting and 3/4 N applied as a sidedrossing at second cUltivation of cotton. j/ All minerals to cotton on these two plots. Ii 'll11 2/. z13 P & K applied to vetch preceeding corn. 1 .11 N to corn. of P & K applied to vetch proceoding corn and 1I3 of P & K is applied directly to cotton. ~/ S~x year average of vetch 1931-36. 2/ 11/ No legumes on plots 10 and 13 during th~s period. . 10/ Pounds seed cotton per acre - First figure in oach case. Bushols corn per acre - Second figure in each case. 1-41 Pounds -green weight of winter legume - Third figuro in each case. J. T. Copo, Jr. 7B Table IF Yields or Cotton, Corn, and Winter Legumes in The Two-Year Rotation Fertilizer ExpcrimsDt AlicGville Field 1930-54 Yield Per L.ore : : : : ---i- ----Plot: No. :Treatm~otton:Vetoh: 1930-36:1937-42: 1.2,43-1*8: 1230-1&: Cotton: or Cor.!l£12i2=2L1 Lbs. i.ore :v:-- :Cbrn6 To : : Vetch!%! : - NaN03 Super Muriate 3871 ~IQI1802 700,§.! 630 26.1:2/ 22.6 1079 40.5 8913 1312 4J,.;7 10221 1606 45.6 10192 642 22.9 1979 821 42.2 8671 701 18.9 1538 981 42.9 10675 1462 44.3 11979 1688 46.4 12338 687 20.3 1708 678 22.7 2481 1009 39.3 10150 123$ 40.1 11623 1475 41.9 11609 690 23.:2$99 400 400 402 19.0 2229 809 35.5 10867 2 NaN03 Super Muriate NaN03 Super Muriate NaN03 Super Muriate NaNO] Super Muriate NaNop Super Muriate 200 400 974 35.2 10760 984 35.2 12520 1181 34.8 12201 732 26.6 4708 3 200 25 100 200 25 400 50 100 400 50 400 400 50 200 400 25 200 400 981 37.1 14629 1165 37.5 15575 1118 36.1 4 50 400 400 25 200 400 5 50 400 25 400 13287 731 33.8 9950 1011 37.2 15117 1185 37.6 15542 442 20,0 2696 6 200 400 698 33.0 10346 945 35.3 12645 1136 35.1 12608 726 26.2 4769 777 43.1 11142 1386 758 39.1 10067 1206 7 Supe~ NaNO 2:,/ 200 25 100 200 25 400 50 100 400 50 Muriate 8 1330 45.2 10531 1607 45.8 10063 601 19.9 2019 1029 13.0 - {7! _11 1589 41.6 8558 1527 42.9 8423 677 24.7 2371 1739 45.0 11840 1701 44.2 11573 1192 31.8 2573 47.0 12683 42.0 12002 400 50 200 400 50 400 25 200 400 25 NaN0 3 Super Muriate NaN0 3 Super Murbte NaN0 .Y 3 Super Muriate NaNoiY Super Muriate NaN0 3Y Super Muriate Y 1613 1436 A9.3 42.9 12688 11829 604 9 18.1 1525 1208 8.9 , 648 21.6 2876 1050 13.4 200 800 75 200 800 75 200 200 50 400 600 50 200 400 25 200 400 50 200 800 100 200 10 100 600 75 100 600 75 100 100 25 200 50 931 17.6 - J! 1122 33.9 9788 1069 34.8 10318 715 28.2 4596 - \];. 'I 971 26.4 - '21 - ]/ 11 1635 44.9 11779 1351 44.1 11071 677 21.2 1842 1725 46.2 13175 1769 43.5 13783 1201 27.5 1633 1431 39,8 10027 200 40.8 9957 691 24.8 3017 1528 41.9 12813 1534 40.9 13370 1151 30.4 3452 654 21.1 2501 200 1168 36.8 14454 1129 37.3 13600 1058 32.3 12 200 200 25 400 :2.3 NnNO i Supe:!' Murio.te NaNoil Super Muri,'J.te NaN0 3 Super Murio.te No.N0 3 Super Muriate 11 - ~/ :14 100 400 25 100 400 50 100 50 800 50 800 100 1178 35.6 13337 1188 36.6 14555 1070 32.0 5768 200 800 50 200 800 100 200 400 50 1192 36.1 16362 1168 34.9 16.625 L094 36.6 15950 371 15.2 1900 15 .Y 16 Y 100 17 N3.N0 3 Super Muriate 721 585 644 26.3 200 5 16.4 __. _ _ __ ~_ _ ___ 41t~~ _~~.~_~,: :.-"': ~~& _ _ FOOTNOTES: 11 - Corn on this plot also receives 200# Super and 25# Muriate in addition to the 400# NaNO] shown. ~ Plus 1 Ton oystor sholl dust ~pril 1930, 1 Ton Dolomite 1954. -11 -41 ~ll P & K and ~4 N applied to cotton at planting and 3/4 N applied as a side- dressing at second cultivation of cotton. 1~11 P & K to legumos proceeding corn. 1.11 N applied to corn, ~4 at planting and 3/4 as a sidedressing. -21 ~3 of P & K applied to vetch in fall preceeding corn, other directly to cotton. 113 applied -f! 1111 P & K applied to vetch preceGding corn, all N applied to corn. -1/' No legume on plots 10 -and 13 during this period. ~ Pounds seed cotton per acre - First figuro in each case. -21 Bushels lQ/ corn per ~ cro -- Second figure in each case. Pounds grGGn weight of wint~r legumes - Third figuro in each case. J. T. Cope, Jr. BB Yiel ds of Cotton, Corn 9.nd vinter Legumes i n the two-Y G_~_!' flot ati on .T _ Fortilizer Experinent, Br ewton 1930-51 Plot: :Lbs. por Acre to: Yi eld-E£! Acro : Lbs Acre to : No. : Trea tment :Cotton : Vetch :1930-36: 1937-42: 1943-48: 1930-48:cotton:vetch:l~t • : : or Corn: : : : : : Cg~n: 5 , -.- ----T8.111 8 IG . 1 NaN03 Super Muriate NaN03 Super Muriate NaN03 Super Muriate NaN03 Super Muriate NaN03 Super Muriate NaN031" Super Muriate NaNO]!! ~per f2/ 336 23.6 30.ol~ 3389TI 1467 393 31.7 4153 667 33.6 4532 956 37.8 5523 275 21.5 1977 418 28.3 3739 843 30.6 4441 1170 33.9 5537 315 20.0 1571 368 28.5 47J..3 988 35.0 7552 1339 38.2 8890 335 22.9 1733 437l91' 185 25.7 3125 352 33.3 6552 1038 41.0 8890 1318 44.9 9683 227 25.0 3365 254 31.4 5942 1255 43.2 8625 lL~80 326 26.7 2699 ?/ J/ 400 400 50 400 400 100 50 127 20.9 4372 489 37.1 9198 876 42.,Q 9065 2 200 400 38B .31.0 4779 841 35.1 5879 1139 38.8 6839 271 22.0 2286 315 29.7 5981 %4 39.9 8988 1241 42.3 10272 307 27.2 2869 1023 3 200 25 100 200 25 400 50 100 400 50 4 200 200 1431 400 400 50.6 100 50 11067 400 200 1318 400 400 41.6 100 50 10125 521 400 400 36.S 11217 50 1114400 400 49.3 100 50 13273 200 200 1754 400 400 54.1 100 50 15527 229 26.3 6386 200 200 800 150 1572 38.4 5 6 200 400 323 29.7 7074 696 41.5 10533 955 42.3 11670 315 29.4 2957 7 l1uriate 8 200 25 11 )0 200 25 400 50 100 400 50 NaN031" Super Muriate NaN03 Super Muriate NaNOJJ/ Super1l l'1uriate 46.3 10025 269 28.7 3902 1120 17~ --9 1477 43.3 8567 1370 43.1 7754 279 24.5 3061 1405 40.9 9515 17g1 43.3 8798 1371 36.2 3300 242 23.1 2427 9 10 100 600 75 100 600 75 100 100 25 200 50 996 __9 23~ 1017 . 38.2 8843 782 36.7 8827 237 21.5 1749 169J 1256 34.5 7070 1115 32.4 5782 313 13.0 1236 1186 36.0 9492 1422 36.2 9063 1162 30.3 3455 _328 22.2 1635 956 __9 :JfJ 1237 38.7 8196 1073 37.4 7529 275 21.4 2001 1134 39.0 9519 1452 40.9 9680 1188 35.0 4572 303 24.6 2138 --2/ 11 NaNO~ supor~ Muriate NaN031" &lpor Murbte 200 200 1627 800 52.2 150 12993 200 200 200 200 100 50 400 400 600 100 1559 50.S' 118~4 12 13 NaNO:#, Super Muriate NaNO]ll Super Muri::J.te ·)uper Muriate ( ' 125Z 45.2 --2. ~4 100 400 2"5 100 400 50 100 50 800 50 858 40.0 9544 1200 43.0 10966 1058 38.1 6616 337 28.2 2317 200 200 1448 400 800 53.9 25 50 14539 200 200 1885 400 800 55.4 50 100 17918 200 200 187E, 800 400 53.7 100 50 13876 197 21.9 5769 ::'5 NaNO~ 800 100 16 NaNO}ll Super Muriate NaN03 Super MurhtQ 100 17 9A 31. FOOTNOTES: 11 gI 1 Ton oyster shell Oct. 1929 and 1 T. Dolomite 1939, 1 Ton dolomite in 1954. All P. & K appli ed at pla nting; 114 N at planting and 3/4 N a s sidedressing. All P & K applied to legumes; N all to corn, 114 at planting and 3/4 a s sidodressing. Corn on this plot (13) r.3ccivcd 200# super a nd 25# Huria t e at pla nting. ltlinter l egumes is a 6-ye'lr !wornge of 5 crops - fail ed in 1951. All P & K appli ed to legumes, all N to corn. No. legumes on plot 10, '1 11 minerals for 2 YlJars applied to cotton. All minerals applied to cotton - non·) to vetch proceodi ng corn. , ~. 21 y 21 §I '11 .' , i .: No l~~ o s on plots 10 and 13 during this period. " 10/ Pounds soed cotton por acre ----Firs t figure in each caso. III ~/ Bushols corn per acro ----------S econd figur e in each case. Pounds gre an weight of winter l egumos ---Third figur o in ea ch caso. J. T. Cope , Jr. 9B " . .... .'. Yields of Cotton, Corn, and Winter Lagunos" in Tho T"Jo-Year Rotation Ii'! Mon:coeld J] e Ej e] d D9.3Q-~ ~ Q 4 ~ Plot: Treatmcntll :Lbs.~r i.,erc ~ Yield Por i.ere : _ Lbs/L.erL~: No. : :Cotto~ Vote ~: 1930-': '1937-: 1943-: ' 1930.;.:eott6riY':Vetoh:.1949-54 or : : : : or 36: 42: 48 48 Corn CornU Table 1H Ee:t::t:iJ jze:c Expe:cjmeni, . 1 NaN03 Super Huriate ; NaN03 Super Murio.te NaN0 3 Super Muriate NaN03 Super Muriate NaN03 Super Muriate 200 400 5562/ / '480 365 27.91~ 24.0 33.3 47361- 2276 5427 793 35.2 9415 1002 36.7 10075 1218 38.4 ' 10412 594 27.9 4891 200 400 804 35.6 9819 1082 37.8 12419 472 28.4 4177 400 400 I 433 31.1 45~7 2 749 712 736 35.7 42.8 37.8 755513299 10055 911 1098 1003 37.6 47.3 40.3 774216J..12 11245 1136 1308 1220 40.6 48.5 42.3 919715574 11658 518 518 27,,5 37.2 2807 5577 546 30.7 4450 867 46.0 11508 3 200 25 . 100 200 25 ~O 50 100 400 50 400 50 200 400 50 400 400 50 1297 400 51.0 50 . 13989 200 400 50 200 400 50 400 1556 50.0 15098 1472 50.4 U225 1008 50.7 16425 1554 53.0 17971 1809 54.2 16962 604 42.2 5746 4 5 6 NaN03Y Super Nuriate NflN0 3 Super l1urinte NaN0 3Y Super Muriate NaN03 Super Muriate NaNOJ1" Super Nurinte No.N0 3 Super Huriate 778 766 759 36 .. 2 43.0 38.1 400' 9426 13395 10824 1087 1367 41.3 50.1 12925)8704 1174 42.8 400 14564 50 200 40f) 50 7 Y 200 25 100 200 400 50 100 400 50 400 50 200 400 50 8 25 1295 1546 1375 1299 40.5 50.3 42.5 37.6 12339 ' 12542 17843 14141 573 30.0 5334 , 547 537 29.0 38.1 3500 5958 937 1156 16.~ 20.5 553 32.2 4951 1085 19.7 9 10 100 600 75 100 600 75 100 100 25 200 50 1147 20.2 §/ §/ §/ §/ 200 800 100 200 800 100 200 200 50 400 600 75 200 400 25 ~o- l 200 1584 43,0 §/ Y 11 1387 37.6 10855 1214 37.5 10698 616 29.2 4977 108LJ.~ 1332 1514 )9.1 51.1) -16157 1425 ~-42.3 200 12524 1840 53 0 8 17997 1708 52.5 16212 1614 5103 12 NaN03Y Super l1uriate NaN03 Super Muriate NaN0 3 Super Muriate 1218 1438 1286 40.1 48.9 41.9 10864 15333 12214 540 576 28.9 37.5 3132 6440 578 31.7 4855 200 200 50 13 II 400 14 Y Y 100 400 25 100 400 50 100 50 800 50 800 100 1312 37.5 13137 14()<) 1345 1593 1412 39.7 51.8 42.7 14265 18429 15164 136.3 1 /~; ~ 3 lL;,';\) 38.6 52.3 42.7 14756 19154 15875 1013 1206 33.0 44.7 4812 7876 532 480 25.8 35.1 2695 '5'586 1155 .37.5 6837 525 29.8 4259 200 800 50 2)J 1818 52.2 19288 1 '50 57.0 20590 15 NaNO;! Super l1uriate NaNo 3Y Super Muriate NaN03 Super 38.2 14022 1234 35.2 7681 555 28.5 ~OO 50 200 800 100 800 100 200 400 50 16 100 1713 57.4 17244 535 34.9 4490 17 L,, ~7S10A 11 All Super and L ,uriate' applied to Hinter legumes. All NaNO] applied to corn. gl IJJ Plus 400 { IA calcium lime October 15, 1929, Limes in 1954. ~I Soybeans in Corn from 1930-?4. Two-thirds of PecK applied to vetch in fall preceeding cotton-other 1/3 appliEl'o directly to cotton. All minerals to cotton on plots 10 :: 11 Rate of muriate changed from 25 to 75 (,! in 1940. All minerals f!. 21 61 11 y 21 1Q/ 1/4 N applied at planting, 3/4 N as:. side dressing 2nd cultivation. No legumes on plots 10 and 13 during this period Pounds seed cotton per acre - First figur e in each .case. Bushels corn per acre -- Second figure in each case. Pounds ~reen weight of uinter legume -- Third figure in ~ach case. 111 J. T. Cope, Jr. lOB - . 2 Yields of' Cotton, Corn and Winter Lagunos in Tho 'I'l1o-YoC'l r Rotation J Experiment - PrQt~tVi] 1 e Fi eld 1930-54 Lbs A to : Yield 12er acre :--1bsZA to _: Plot : Treatment : I : : ~ l N : o. : Cot~ n:Ve~ch:1930-36:1937-42 :1943-48:1930-48:Cott :Vetc~:1949-54 or : : or Corn: ;Corn NaN03 742 789 774 7852/ 746 1 Super 40.1 27.310/ 32.7 42.4 33.8 H uriate 6275 '1018ll/ 3896 5654 5601 Table I I For~: 130i t . . NaN° 3 Super H uriate NaN°3 Super Huriate N 03 aN Super H ate uri N 03 aN Super l1 uriato NaN 31/ 0 Super H uriate NaNOJ1l Super Huriate NaNOJ1/ Super M uriate NaN0 3 Super H uriate NaNO 311 Super H ate uri NaN Oyl/ Super H uriate Nal'JO:#, Super Muriate NaN 3 0 Super M uriat e NaNOJ,1i Super H uriate NaNO)/ Super Huriate NaN° 3 200 400 906 33.7 10138 1018 34.•7 11451 1199 35.1 11323 790 29 .6 7318 1006 47.8 10688 1140 48.6 la625 1427 51.8 13700 822 ~6.6 ~52 952 53.6 44.4 12138 10943 400 400 991 45.5 15375 1430 47.6 20496 1585 47.1 21625 1432 42.9 18217 930 43.4 17442 1469 46.2 21167 1595 44.9 20358 880 41.4 8425 3 200 25 100 200 25 400 50 100 400 50 1147 45.5 14508 13103 130 5 Sti.8 400 50 200 400 50 400 400 50 400 400 25 200 400 25 200 400 25 400 4 1598 1397 54.7 46.6 14096 12949 893 45.3 6675 832 36.8 6296 5 4725 1101 46.2 11473 1277 47.2 13279 1529 48.5 12338 841 37.9 5521 932 12.2 6 200 400 941 31.9 10249 ' 1072 32.1 11421 1229 33.7 11031 838 29.9 6939 958 997 51.0 42.5 12763 11429 1250 54.0 43.8 14954 13123 1L~3 1 7 2~0 25 100 2"0 25 400 50 100 400 50 MIO 50 200 400 50 400 25 200 400 25 8 1619 1447 54.2 44.8 14517 ,12545 1005 47.5 7675 935 12.0 891 37.9 6724 925 13.1 9 100£1 ~OO 10 75 10cW 100 75 100 1'1 0 25 200 50 ~/ 910 15.2 ~/ Y ~/ 2002./ 20OJ/ 1428 800 32.1 75 ~/ 200 800 75 200 200 50 200 1549 44.5 19575 1540 45.1 18617 ili411 42.4 11 1220 32.3 10458 1204 3T.2 10287 788 30.0 7307 1518 43.6 11613 1503 45.5 11688 831 36.4 4800 1542 45. 6 14329 1540 45.2 13913 1283 39~.3 1657 1451 52.8 42.2 113396 11751 1562 1411 5Lf .9 44.0 13842 11852 902 46.0 6913 837 37.0 6391 12 200 200 25 13 400 400 600IJ./ 50 200 400 25 200 400 50 200 800 100 20() 800 50 200 $00 100 200 400 50 ~/ 14 100 400 25 100 400 50 100 50 8(10 50 800 100 1242 31.5 11972 1267 31.2 11590 1160 ;1.0 7799 732 26.2 6700 1601 1450 52.7 42.6 15021 13679 1623 1466 52.5 42.3 15912 13688 1454 49.7 9229 1292 39.5 8109 744 31.7 5296 , 1540 43.7 21842 1538 43.5 22696 1541 44.0 19825 7~ 15 16 ].! Super N uriate 100 7350 17 NaN 03 Sup'er Muriate 748 754 30.4 39.6 3717 111. 5236 37.a 4783 1/ 2/ Plus 1 ton oyster shells i'" faD 1929 and 1 ton dolomite in sprinp: ~f 1933. 1 ton dolomite in 1954. All P ['. K and 1/4 H applied to cotton at plantinri and 3/4 ~J applied as a sidedressiur at 2nd cultivation of cotton. All ' P & K to IGf,umes. All N to corn, 1/4 at planting and '/4 aa. a Side-dross~ ing. Corn on this plot receives .;zoot Super and 25tf. murie.te at planting. 21 £/ '11 ~/ {!/3 of P e : K apnlied to vetch preceeding cotton and other )/J and 'all N applied to cotton at planting. All P, K, t : N applied airectly to cotton. All P 8. K apr-lied to vetch preceeding corn and all N appl.i ed to corn. No legume on !.Jlotl: 1-0 and 13 durinc: this period. Pounds per acre of seen, cotton--First figure in each case. 0ushels ner acre of 'corn - Second figure ine?ch case. Pounds freen weip.·r.t of Hin.tel· le,"'ul"18s - Third figurA ' in 8Pch case. 2/ 1f!I 1J/ J. T. · Capo, Jr. lIB Tli.b~~-;r-- Y:1o~ds I 01;· Gotton, liorn ana 1'11ntiOr lJegumos J.n " J.ne .1 WU-~ UL\ J: nU"'.r Rotation - W· rass Substation 1930-5 s A to :",Yield Per Acre :_Lbs to Plot: Treatmen~:Cotto t 1949 . :Lug~ne~1930-:1937-:1943-:1930-:Cotton N o. ~9 53.§/ : Corn :1936 :1942 :1948 :1948 : Yields of Table IL . 1 NaN0 3 Super Muriate NaN°3 Super Muriate NaNO) Super Muriate NaN°3 Super Muriate NaN°3 Super Muriate 200 400 692 20.9~3.2 33.7 31831 5 3899 10948 1066 1084 1034 22.5 33.7 35~8 5462 10)89 10396 1112 23.0 5032 1213 1190 36.3 38.3 106~1 1.3057 91slli 708 780 25.7 5862 1062 30.2 8576 1169 32.0 9341 1412 34.4 lID561 841 26.5 6049 1120 31.1 10044 1215 31.2 1159~ 833 31.6 3398 300 300 1257 30.3 4247 1586 33.5 5368 1708 .3.3~2 2 3 200 25 lQO 200 25 400 50 --- 100 400 50 300 75 200 300 75 .300 200 .300 4 1358 1451 1435 25.7 40.3 38.8 6208 12131 14070 954 20.0 3448 826 724 27.4 32.8 49,., 10200 4644 5 12# rf2/12# N2/ 1407 300 .300 :n~2 75 75 4149 300 300 1324 31.5 4285 1596 31.7 5357 1646 33.2 3387 <3891 27.4 4617 200 300 75 200 300 75 200 150 75 48# 300 75 200 600 75 200 600 75 200 600 75 200 300 200 1363 31.5 NaNOf/ 6 Super Muriate 200 400 1111 1204 1046 21.6 38.3 35.3 6571 14023 10117 1105 1277 13.30 21.5 36.5 37.1 6910 16350 12302 1360 1526 1479 23.5 40.4 39.0 7996 15831 13551 915 19.1 4067 814 794 25.3 33.6 5307 10382 1136 1044 15.3 18.0 NaNOyZi 7 Super Huriate 200 25 100 200 25·, 400 50 100 400 50 .3013 75 200 300 75 300 200 300 NaNO]l/ 8 Super Muriate NaN° 3 Super Muriate NaN°311 Super uriate M NaNO-}J 11 Sup ~r 1450 33.8 12224 845 25.7 6453 1133 16.9 9 '10 100 600 75 100 600 75 100 100 25 11/ 1208 ill?5 1Y g/ W W ]2j 1t M uriate 12 NaN°3Z1 Super Muriate NaN°3 Super H uriate .. 1340 1471 1421 21.0 36.9 37.5 7095 13584 11957 1342 1515 1420 21.8 39.9 38.1 6695 14604 12542 957 19.7 3584 777 28~2 33.7 5693 10247 882 1407 31.2 10679 1421 32.6 11039 876 26.8 6354 1563 3404 12295 1556 34.6 12957 "1336 31.4 8448 780 26.9 6030 21 200 150 .. 1695 32.5 5347 1673 35.1 5532 200 50 13 N~/48# Nk/ 1435 30 0 300 75 W 0 -:"1" NaN0 3Z/ Super M uriate NaN 3Zi 0 Super H uriate NaNOp Super Muriate NaN° 3 Super Hur~ 100 400 25 100 400 50 100 50 800 50 800 100 14rJ7 1669 1640 24.1 41.3 39.5 8287 16698 12567 200 600 200 600 75 200 600 75 1647 32.0 6649 1523 35.4 5515 1516 ,4285 ~.5.0 15 1444 1645 1598 24.4 41.5 .39 .6 8242 18005 13409 1329 23.8 5653 885 21.3 3220 !~ . , " 16 100 1378 1301 34,,5 37.3 8904 11253 718 719 2503 35.a 4944 10393 •,. f· 17 14A . 808 30.0 3605 11 Y 21 ~ All P & K applied to cotton at planting - 1/4 N at planting and 3/4 sidedres$ing All P ,'<: K applied to legumes. sidedressing. N applied to corn. '1/4 at plantine' and 3/4 as a P 12# of N from Sulfate of Ammonia (58.5#/A.) applied with & K on plot 5. 12# of N from Sulfate of Ammonia (58.5#/A.) applied with P & K on plot t 'and 36# N from Nitrate of Soda (225#/A) applied as a sidedressing on plot 13. Lupine preceedine corn fertilized with 300# super/A. Cotton and corn are 5-year averages while lupine is a 4-year average of two cropf One ton dolomite/Acre ap'''llied October 1929 and again in 1953. Basic treatment is 600// of ' superphosphate, 75# of muriate and 100i{~ of nitrate of soda per acre. In general, 2/3 of P 8.: K applied to vetch in fallon cotton plotr and the 1/3 applied directly to cotton. All P 21 £! 11 12/ 2.1 12/ & K applied to cotton at planting, all N to cotton also. ,A ll P 8: K applied to 'Hinter lefUtlles, all N to corn. , All NPK for 2 years applied to cotton. No legume on plots 10 and 13 during this period • Pounds seed cotton per acre - ~ First 111 1Y' .uJ 11/ figure in each case. Bushels corn per acre -- Second figure in each case. l5iPounds green vJElight of winter legumes -- Third figure in each ease. J. T. Capo, Jr. Table 2A Response of Botton and Corn in a two-Yoar Rotation to N, P205, and K 0 in Fertilizer 2 Formula 7.xperiment No I at Eight Locations 1930-43 : __ 1~ Year Average Increase :Pounds Sced Co.:tton and Bu. CornLj Treatment: Plots Alex -:Alice-:Brew-:Monroo-:Pratt-:San~ :Tenn. :Wire-:Avorage andriaFille :ton • :ville I• ville :Mt. !ValloYigrass !1930-43 : : -- . . . . . . 1st 12f.! N 3-2 2nd 12# N 4-3 3rd 12/;J N 5-4 4th 12#P205 10-11 5th 12{,lp20 2nd 12/'~K20 260 7.6 161 6.7 . 115 4.9 S4 0.7 3 0.3 11 -0.1 17 1.0 252 7.3 lS5 S.5 192 7.3 25 0.7 16 0.1 81 -O.S 15 0.4 2S4 S.4 lS4 7.6 110 4.7 118 0.6 275 S.S 177 7.5 174 5.4 15 0.2 304 9.1 205 9.7 203 7.6 3 0.0 11 -0.2 307 S.3 315 10.9 274 10.1 24 0.1 165 5;6 176 6.1 55 3.S 27 0.4 2S5 7.3 175 5.S 14S 3.6 42 1.2 -25 1.7 52 1.1 57 1.2 267 7.S 197 7.9 159 5.9 42 0.5 23 0.2 6S 0.1 S 0.0 5 9-10 85 74 0.7 -0.5 1/ 6 .. 1.1 17 1;0.2 -0 •.5 162 -2 0.5 -0.7 7 -22 0.1 -O.S 5-6 S-9 78 0.4 -11 0.1 14 -0.4 9 -0.1 3rd 12r;JK2O -11 -1.6 Increase per Pound of N By Increments 1st 12#N 2nd 12#N 3rd 12#N 36/,1, N 21.7 0.63 13.4 0.56 9.6 0.41 14.9 0.53 21.0 0.61 15.4 0.71 16.0 0.61 17 ... 5 0.64 23.7 22.9 0.70 0.73 15.3 14.S 0.63 0.63 9.2 14.5 0.39 0.45 16:"1 17.4 0.5S 0.60 25.3 0.76 17.1 0.81 It,.9 0.63 25.6 13.S 0.69 0.47 26.3 14.7 0.91 0.51 22.8 0.84 4.6 0.32 23.8 0.61 14.6 0.4S 12.3 0.30 22.3 0.65 16.4 0.66 13.3 0.49 19.8 0 ,73 24.9 11~0 0.81 0.43 16.9 17.3 0.46 - 0.60 Summary: fJ.l 8 locations produced a response to 36 over 24 pounds of nitrogen on both cotton Q corn. The ave~age response from this third 12 pounds of nitrogen nd was 159 pou~ds of sced cotton and 5. 9 bushels of corn. Tho average response 'per pound of N for 36 pounds was 17.3 pounds of eeed cotton and 6.6 bushels of corn. ll.v-.rage r CSD onse of cotton to 4S P205 over 36 P20S was 42 pounds seed cotton. Only 2 locations producod rospons e of morc than 25 pounds of seed cotton to 60 P20S over 48 P205. Average response o ~ cotton to 24 K 0 ovor 12 K 0 was 68 ~ounds of seed ootton. Only 2 2 onG) locatio;, produced responso of more than 25 p01mds of seed cotton to 36 K20 over 24 K20. Corn did not rospond to morc than 36 P20S or to morc than 12 K20 at any location. The lack of responso of both cotton and corn to P20 5 and K 0 was most likely due 2 to tho 1imitod supply of nitrogen, 36 pounds, which those plots roceived. JT Cope, Jr. 15 ,'. Table .2B Yields of Cotten and Corn in Fortilizer Formula Experiment No. 1 at Eight Locations 1930-43 Two Year Rotation of Cotton and Corn P16t:Treatment:14 year Average Yie1d--------Pound§_S~d Cotton and Bu. Corni A No. : 600!'!/A :A1ex- :Alice-:Brewton:Monroe-:Pratt-:Sand Mt. :Tonn. ::1rJire-: Average : Basis :andda:Vil1e : :vil1e : ville : :Val1ey:grass: 1 6-10-4 1110 33.9 519 1.2.9 '779 20.5 940 27.2 1055 32.1 1044 32.2 1013 1385 .28 • .2 38./+ 472 540 7.1 14.5 724 S24 14.4 22.9 909 1008 .22 . 9 30.5 • 1101 1118 30.2 35.2 1020 972 31.0 ' 34.1 1044 1038 30.3 31.8 1053 30.9 420 10.9 695 19.7 872 27.2 1046 32.6 968 32.2 987 3.2.4 1051 31.8 1062 31.7 977 32.2 962 32.0 1158 34.9 460 8.4 -764 17.5 969 .27.2 1172 34.8 1158 35.2 1147 1540 35.9 619 7.6 92~ 1656 39.5 1191 .22.7 1.359 28 •.3 1532 34.4 1587 38.2 1589 38.9 1511 38.4 1611 39.4 1633 40.2 1629 40.7 1602 40.3 1539 35.7 1621 38.6 1477 32.3 1506 32.5 1555 31.5 971 17.8 1256 25.1 1431 30.9 1579 34.5 1527 35.6 1603 34.3 1606 33.6 1549 32.4 1574 34.1 1532 32.9 1410 29.0 CL543 32.2 1270 26.3 1253 26.6 1309 3/, • .2 649 12.7 916 20.5 1113 28.4 1272 34.~ .2 0-10-4 2-10;;'4 15.9 1241 26.8 1515 36.9 1353 36.4 1364 4 4-10-4 5 6-10-4 6 2':'10-2 1204 34.5 1217 33.8 PI: To Cotton 6-10-4 10/+3 To Corn 6-0-0 33.3 6w10-6 1125 34.4 1108 33.4 1105 33.1 1021 32.4 893 .26.3 lC68 31.7 811 22.8 872' 23.7 34.3 35.3 -1176 34.9 1167 35.0 il:156 35.2 1153 35.2 974 30.1 1175 35.6 ,842 ~3.2 -130!L 8 1123 1267 31.8 35.8 1108 1278 31.4 37.4 1092 1204 31.3 36.7 -1067 1086 30.4 36.1 914 1008 24.2 30.8 1079 1160 31.0 35.5 819 892 - 9.3 27.0 1 826 - 873 19.7 26.9 1447 35.7 1440 35.6 1423 35.4 1399 35.3 1172 25.2 1467 35.9 1013 19.6 1030 19.6 34.7 1293 34.6 1::>70 34.8 li428 34.3 1095 28.6 1267 34.1 984 24.2 996 24.3 9 6-10-4 ]LO 6-8-4 II 6-6-4 - _.. 12 4-8-4 848 27.1 1024 32.4 748 23.1 754 22.3 lS 14 6-10-4 3-8-5, 15 3-10-3 851 23.0 19 l¥t Treatment changed during course of experiment;therefore, no yields given for this :Qlot. 1.1)0 ~. Q;..1.0-4 i0i9 128$ -1167 1470 1714 "1566 1300 988 33_~ 30,,0 38.0 31 6 5 35,1 39.5 31.0 34 .. 2 --- Table 3 A Swnma:'y of Fertilizer formula eJ..--periment No 2 on Continuous Cet ten Average response at 7 Locations 1935-531/ Troatment :..:-_All~lQ.s anQ...incre~ses - - - -,- i.n 12otmds of seed £2:tcon pOl' a~ Average vlireAlice-:Brcw-:Honroe-: Pratt-: Tenn. : Sand Ville :ton :vil1e--1 ville : Valley: Mt. Itrass Averaee Yield 1935-45 No f ortilizor50l 319 163 363 '. ~ 815 751 531 492 Increaso of 3GO 9-10-4 6-10-4 6-8-4 6-6-4 3-8-5 6-8-3 570 519 535 529 404 422 595 517 527 445 430 496 387 407 322 352· 3S7 354 677 531 602 f ortilizer over no fertiliz er (1935-45) 427 672 542 555 576 519 498 413 410 291 455 549 36B 400 370 4B2 479 453 ~ 4eO 351 540 26B 381 3B8 630 360 468 Increase of 600# fertiliz er over 300# (1935-45) 9-10-4 6-10-4 6-8-4 6-6-4 3-8-5 308 268 299 284 202 229 374 313 306 398 177 260 2')8 346 325 3B 113 112 89 163 433 405 396 392 313 369 2B4 260 288 275 338 338 29B 279 281 286 224 255 26B 295 257 ib72 186 Increase of 26B 316 202 316 90c¥,~ 6-'iZ-3 8'" fertilizer over 600# (1946-53) -35 -5 25 -51 -42 -1 9-10-8 6-10-8 6-8-8 9-12-8 9-10-4 9-10-12 Average l2-10-GG 8'5 123 118 38 45 24 ')'6 54 208 -78 83 150 '':12 67 78 -60 92 3 139 168 III 116 40 ~82 ..61 65 38 -44 -77 -54 878 25 75 97 -17 19 33 1129 ;t plots 1, 1068 5, 9, 13 and 17 1946-53 1230 1185 1169 1304 This experiment "Jas discontinued at all locations in 1953. 11 The f ertilizer treatments for the period 1935-45 are as shown in Table B. The f ertilizer treatments (formula and rate) were changed in 1946 as shown in Table C. Each treatment was in duplicate, ?j Chock plots receiveC, 600 pounds of 12-10-8, J, T. Cope, urr. 17 Table 3B FORl'lUl,A ~XFEl n ': TT Avc ra (~o NO. 2 O CO£T UOU,s COTTON N TIN Treatment Treatmont: N :Formu1a o. Lbs/A - . --,- - -.. - - 477 600 300 600 1379 1071 1288 496 Rosul ts at Seven Locations, 1935-45 Yi old seed cotton por acro -- pounds :Alico-:Brcw-: ~ onroc-:Pratt~iTenn. :Sand:wire-1 Average :vi11e :ton :vi11el!:~i11~~Va11ey:~t. :grass: 297 1288 914 1140 296 827 1152 846 358 1153 755 ·917 330 740 1075 815 316 161 848 550 838 174 570 780 48jj 119 772 515 732 183 560 703 517 179 345 1386 1040 1219 353 894 1233 965 363 1169 853 916 356 714 1219 903 400 825 724 520 478 1339 1041 1253 487 974 1252 971 498 1231 945 1076 490 ~52 1 2 3 4 5 .6 7 8 9 10 11 12 13 14 15 16 17 N one 9-10-4 9-10-4 6-10-4 N ono 6-10-4 6- 8-L. 1280 1856 1334 1242 1423 1050 1296 1698 1289 819 727 546 300 500, 300 1020 1335 1036 550 1186 1293 1029 1327 1702 .1232 iL215 1306 944 823 771 499 6-8-4 none 6-S- 4 6- 6- 4 3-8-5 None 3-8-5 6- 7-3 6-7-3 N one 600 300 600 131L~ 1280 1719 1216 1191 1327 941 1246 1452 1160 809 758 511 1030 1107 481 300 600 300 '. 905 1152 923 503 1083 1139 822' 1279 1750 1~24 1215 960 507 1196 1381 986 797 774 580 Avo of Cks 1,5,9,13,& 17 501 319 163 363 815 751 531 492 11 Di scontinued at .Honrooville after 1943 cr op. 18 Table 3C ~. jJ~t iliz o r Fornula No. 2 en Continuous CGtton 1946-53 - tver age Response at 7 Locations Treatment: 'l'r!?£+.tmc:ntl7 : "#77:. : Alice-:Brew-: Pmt- : Tenn.: Sand :lvire-:Ave All. No. ville : ~n : ville~/: V. : Mt~/ :grass: Locatio~ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 .1/ 19 20 12-10-8 9-10-8 9-10-8 6-10-8 12-10-8 6-10-8 6-8-8 6-8-8 12-10-8 9-12-8 9-12-8 9-10-4 12-10-8 9-10-4 9-10-12 9-10-12 12-10-8 . 9-10-8 9-10-8 9-10-8 . . ..:1:2:"10-8 600 600 900 600 600 900 600 900 600 600 900 600 600 900 600 900 600 1200 600 900 600 1045 1203 1288 1094 1074 1217 1100 1218 1127 1206 12LJ4 1129 1078 1174 1194 1218 1016 1212 1281 1337 1118 1174 1172 1019 1227 ' 1368 1227 1149 1049 1155 1132 1264 1414 1242 1172 1258 1246 1128 1190 1195 1173 1251 1172 1261 1201 1227 1168 1319 1293 1295 1221 1075 1314 1279 1289 1207 1283 1273 1298 1204 1326 1275 1284 1180 1242 1351 1350 1177 940 1328 1467 1359 . 1345 1527 1387 1498 1409 1569 1685 1584 1402 1624 1657 1739 1423 1901 · . 1783 ' 1~41 887 1055 993 1224 932 1249 910 1141 909 1139 975 1216 898 1129 936 1226 892 1187 955 1243 911 1226 840 1166 854 1126 763 1185 962 1270 908 1303 850 1140 .'21 .'21 ) ..-. 21.1/ 1239 11 ~I All f~rti1izGr applied before planting except plots 1, 5, 9, 13 and 17; on these plot s 4-10-8 under and 8~0-O as a side dre ssing. . Average at Prattville and Sand Mountain is from 1946-51, 6-year avorage. '1/ Plots 18-21 at f',::md Hountain are 6 year averages 1946-51. J. T. Cope, Jr. 19 Table4 The Y el ds of Cot ton and Corn in Formula and Rat es i Revi sed 1944 of Fert ilization l!lxpe r iment at Spnd M ountain Subst ati on. 600 900 900 900 900 1200 1500 600 6-8-6 6-4-3 Ave. 1,5, 13 8, 17 2 3 4 67 8 9 10 11 12 14 1"55 16 1330 1770 1755 1756 1569 1718 1822 1553 1762 1841 1843 1847 1843 1864 32.9 6611 60.8 50.2 46.6 57.6 63.6 47.4 62.0 68.6 71.2 68.9 67.6 68.7 9-8-J/ 9-8-611 9-8-611 6-8-6 6-8-6 6-8-6 9-8-6 9-8-6 9-8-6 9-8-$ 9-8-4 9-8-8 9-12-8 12-0-~/ 9-0-cftl 6-0-rP 6-4-3 6-4-3 6-4-3 9-4-3 9-4-3 9-4-3 9-4-3 9-4-2 9-4-4 9-6-4 900 1200 1500 1200 1200 1200 Tho crops nr e grown in a 2-year rotation tif cotton-corn. y Cotton r eceivod a 9-12-6 in 1944-e.nd' 1945. 2/ Corn r ecoived a 9-6-3 in 1944 and 1945 CONCLUSIONS: Tho dominant factor in cotton and corn yields was nitrogen. tho" r o sul t s on the basis of nitrogen they are as follows: Lbs. N 36 54 72 81 90 108 135 Cotton 1330 1561 1718 1761 1822 1849 1843 If we avor ago . Corn 32.9 48.1 57.6 61.4 63.6 68.0 71.2 However, in all instances there ',las sufficient phosphorous and potash present There was no effect on corn yields from omitting phosphorous and potash in a corn fortilizer ~hen corn follo~ed cotton that had been liberally f ertiliz ed T,"_lJle 5 Plot: No. : :l'c rtniz~7: 1;7,13 2; 8, 3; 9 4; 10 5; 11 6, 12 --Sagrain Sorghum : Corn : Spanish Peanuts : Runner Peanuts : ~ "JOat Cowpeas Cowpea Hay: Soybean Hay:Soybean : PQtatoes: : S~cd: ~talica Heads: Stalk Bu/ ~Juts : Vines Sooq§/ :Greed:Dry : Green: Dry : Seed }\Juts : Vines : :Heads:#/A y. ~!/A:i:#/A : : #/A "~IA /;~/A [ /A #/A :wt.j,I:Wt.21: Vlt. : Wt. : #/A ir #/A . "/ e· . - ~. A · . " • :#/A :ffiA :JI/A : #/A : 0 267 4386 10.1 579 436 3234 2883 500 685 1509 6737 1412 5079 1615 296 989 P 598 4482 404 7984 12.2612 li26 10646 2328 6111 1934 328 688 1826 3076 450 PK 680 4192 561 7894 10,,8 670 1298 802 550 12214 2624 6510 2040 379 1972 4076 NPK 1660 7282 1133 17246 27.8 1143 1082 6128 650 1874 15874 3240 11851 3666 627 3044 NPKL 1941 7383 1314 22309 35.4 1328 2118 6236 1050 18070 3638 13702 4262 918 1153 3530 1/2 (NPK) 1064 5429 540 10112 20 0 838 2270 12122 2554 8548 2624 456 850 960 4825 1418 : Ave. Relative Yield Percentage based on NPKL Plots 5 and 11 as 1~ - . :ffoct of N, P, K, and Lime on 10 Different crops* 10 Year Average 1939-48 ~t Tusl:ogec . . .. tr .. . . . 9 . r 1; 2; 3; 4; 7, 13 0 8 P 9 PK 10 NPK 5, 11 NPKL 6 , 12 1/2 (NPK) 22.5 30.8 35.0 85.5 100 54.8 43.8 60.7 56.8 98.6 100 73.5 20.3 30.7 42.7 86.2 100 41.1 20.6 37.5 37.0 80.9 100 47.5 28.5 34.5 30.5 78.5 100 56.5 43.6 46.1 50.5 86.1 100 63.1 46.7 53.2 61.5 88.5 100 66.9 59.4 59.7 69.6 93.8 100 83.3 42.7 51.7 55.9 86.2 100 64.3 46~2 49.3 65;4 98 ,3 100 77.4 47.6 4'< .9 52.4 61.9 100 81.0 37.3 58.9 67.6 87.8 100 67.1 38.8 64.0 72.1 89 ..1 100 70.2 37.1 44.6 47.5 86.5 100 62.4 37.9 45.4 47.9 86.0 100 61.6 32.2 35.7 41.3 68.3 -100 49.7 37.8 46.6 52.1 85.1 100 63.8 rl N J/ Fertilizer on basis of 600// 6-10-4 p€lr acre. N;:; 225( sodium nitrate (75f-1 before p1antinp-: , 150 pounds 30-40 days after planting) P::: 375t ,suporphospha~e (all before planting) K= 50 ::: muriate of Potash (all before planting~ L= 500t dolomite (applied in lay-off furrow and thoroughly mixed with soil before planting) 5 year average of stalks. ZI y ~< 2/ 9 year average of 9 crops ~ 9 year average of 9 crops - cows destroyed in 1948 1 yoar's results only, 1948 lqo regular sequence of crops in this experiroont 2 year average of 2 crop, 1947-48 21 JT Cope , Jr. Table 6 Effect of F,P,K, and Lime on Oats, Corn, Kobe Lespedeza, and ISoyl~ean Hay in a 4 year Rotation~} at Tuskegee Ave. 1942-48 No Plot: Fertilizer :.' Oats Cor n Kobe Lelill5l~ID1i Kobe Lespedesill:Soybean Hay6! : Gte.en Wt~ : Dry Wt;; . Green Wt: Diy: l-lt: Green wt: Dr~' - --------------------------------------1, 7, 13 2, 8 3,9 0 N NP /I./A : tiiA #/A : I!IA #;IIA: t. 0 1Lf.1 11.6 0 P 3013 4128 4833 5555 6110 4868 1134 1548 1817 2093 2298 1832 2786 3374 3949 4230 4258 4044 1049 1274 1483 1587 1600 1510 4824 4900 4822 5728 9707 . 6522 147( 149:' 145F 173F 292F 3Lf .4 14.0 49.7 51.3 13.4 15.8 14.6 15.1 4,10 NFK 5,11 PIC NPKL21 PKUI·55.0 6,12 NPK2L PK 4C;.7 198£ Cropping system: Oats, 1espedeza, lespedeza, corn, soybeens. Lespedeza on oat strips ~I All minerals applied at planting. Sodium Nitrate applied Me.rch 1-10. time applied broadcast in fall of 1941 to all limed plats; N m 225 # sodium tiitrAt0 P. 375#.~,1fit. ~11per:Phospna"te:·- 1\:=50# muriate '-of:isotash "Clef.acre. '2/ Droadcast one ton dolomite per acre and disk in on p101:;s 5 and 11 in fall of 1941 and again at beginning of second or third ·.rotatiOn (1945 or 1949). " IJ.'I 7 year ave. of 5 crops. Failed in 1942 and killed· by~"dpy ~eqth~t' in ;:1948. 6I 21 7 year avc. of 4 crops ( same as footnote 4 plus plowed up through error in 194 7 year avc. of 6 crops. Killed by dry "leather in 1948. 4 year ave. of ; crops (1943,44, and 45). Corn failed in 1942. Failed to fet stand in 19/{ and 19/.,.7. Sagrain vIas used in 1946 and Hegari in 1947 in place .6 of corn~ . 11 ~~ 11 JT Cope, Jr. 22 Tnb10 7 Rate of Fertilizing Cotton Prattville 1934-35 Treatment None 600# 6-0-0 3'00# 6-10-4 600# 6-10-4 900# 6-10-4 None 1934-47 908 1335 1115 1424 1527 683 1938-41 544 1394 1210 1777 2123 . 541 1942-45 423 1280 1095 -1555 1854 407 1946-49 190 724 573 902 1031 128 1950-54 480 1074 1004 1260 1285 305 .kve . .34-54 508 1157 1000 1378 1551 408 : SUMMARY: A large response to nitrogen has been produced since the beginning of There has also been a consistent response to P and K but the The 900 pound rate of 6-10-4 has this experiment. response to these elements cannot be separated. been better than 600 pounds but the less in recent years than formerly. difference between these treatments has been This may have been a result of lower yields due to less favorable weather in the last few yoars. J. T. Cope, Jr. T".bl0 8 Rat,~ s of ':idedressing Sodium Nitrate to Cotton Prattville Field 10~ 1450 1591 1703 1315 1234 1358 1418 1315 1476 1111 1063 1027 1164 1116 1265 1337 1314 1440 .200 300 All plots received 600 pounds per aero of 4-10-7 before planting. Concl usions No explanation is offered for the variable results. c. E. Scarsbrook 23 Tnblo 9 PEANUT FEnTILIZER iLND:~SPEING 1i::XPERn1ENT Wiregrass Substation (Tier P and PL) 1936-43 Plot No. Fertilizer IDreatment I Grade Materials : (400 Ib/A (4) Variety and Spacing Runner 7" :---X1eld of Dry Peanuts-Lbs/A :1936-43:4-yr. ave.:4-yr. ave. (1940-43) : Ib/A : 1940-43 :All plots limed (4) 1431 1444 1640 1420 1701 1617 1470 1666 1594 140.3 13771/ 1 2 o 0- 8-0 0-8-4 Slag ck 1064 10.33 1410 967 l444 1327 1034 1303 90s Runner 7" Runner 7" Runner 7" Runner 7" Runner 7" Runner 7" Runner 711 Runner 14" Runner 7" Runner 21" Runner 28" Runner 7" 3 4 Slag,K ok Super, K Slag, N, K ck Slag,K,Gy Slag,K,Gy ok Slag,K,Gy Slag,K,Gy ok o 0-8-4 6-8-4 5 6 7 1329 1222 1061 1299 1164 947· 1238 1076 950 811 649 933 907 826 947 1265 1.309 1086 1443 13 OS 1016 1334 o 0-8-4 0-8-4 8 9 10 11 12 13 14 15 16 17 18 19 20 o . 0-8-4 0-8-4 136~ 1371 963 785 1258 1160Y 1184 976 791 540 867 911 956 o 0-8-4 Slag, K,Gy Spanish 6" o o ck Colloidal PhOSe MgS04 Spanish 6" Runner 7" Runner 711 Runner 7" o 0-8-0 o 0-8-0 0-8;.,4 Super ,MgS04 Runner 7" Runner 7" 10211/ 13301' 1098 1374 l' ~ Eight-year average of 7 crops. Failure of crop in 1939. ~/ Seven-year average. Plot 17 started in 1937. ~/ Four-year average. Plots 18, 19 & 20, added in 1940. kI In 1940 all phosphates were changed to super, except 5 which received slag. Also, 500 Ib/A dolomitic lime applied to south half of tiSD annually. Gypsum applied at 200 lb/A and magnesium sulfate at 50 1b/A. and Runner peanut the addition Table 10 Response of cotton to metl' od and time of applicat i C'n of f e,-tilizers at 3 locati ons, 1955 Time of apnlication Placement Preplanting:Sidedress: 1 60-60-60 2 60-60-60 3 60-60-60 4 20-60-60 5 20-60-60 6 20-60-60 7 20-20-20 8 20-60-20 9 20-60-20 10 20-60-20 11 20-20-60 12 20-20-60 13 20-20-60 14 20-60-0 15 20-0-60 16 0-60-60 40-0-0 40-0-0 40-0-0 40-40-40 40-0-40 40-0-40 L~0-0-40 Norfolk Fsl: Attwood fs1: Prattmont hTinfield 1908 1890 1562 2074 1917 1998 2133 2128 2196 2336 2047 2043 . 2258 1652 1858 1750 14.1 343.5 10.9 N.S. 2079 2308 2061 2272 Kalmia fsl Brewton 862 Broadcast Hachine Bedded Broadcast Machine Bedded Hachine i3roadcast Machine Bedded Sroadcast Machine Bedded Machine Machine Machine 940 1170 1105 1395 1201 938 40-40-0 40-40.:l0 40-40-0 40-0-60 ZiO-60-0 ~O-O-O 990 CV LSD 10% 19.9 260.1 314.4 J2arent1y Table 21 Kuszu - Fertilizer at Planting Time 1/ Brewton Experiment Field - Established 193~ : F:')rage Yield - lb. per 3656 3808 4508 6030 5682 5286 3810 3900 4320 4620 4770 4800 3120 2955 3150 3765 3375 3135 M~.Jky Plot: ------------------1 2 3 4 5 No . Fertilizer Treatmentg/ :-rffl-~J8:~ljTI94o :z,:'"r.av.: 1 94lZ/ 2058 2433 2709 2856 2699 2289 3161 3275 3672 4318 4132 3878 3840 3960 4470 4920 4200 3870 No Fertilizer Check 60Q;!. Superphosphate 600/~ Super, 50 lb. Muriate 1 shovelful stable manure/hill 800 lb. Basic EHag, 50 lb. Muriate No Fertilizer Check 6 --------------,------------------------------------------------------1 -2 // Crowns set up 3 1/2 ft. rows, 3 ft. in ' the drill !:;/ Treatmont repeated in 1941 • same as initial except 3 T manure broadcast on plot 4. CONCLUSIONS: Although ' the design of this experiment does not permit evaluation of small dif'forenees, there appears to bo some response to additions of fertilizer to kudzu at planting time. One shovelful of stablo manure per hill gave the best results but was only slightly better than 800 lb. basic slag and 50 lb. muriate of potash per acre. The improvement in the 4-year average yield for use of f ortilizer was very slight. Table Plot: No. 1 2 Kudzu Fertilizer Test • Prattvil~e Experiment Fieldl/ ---'---F-o'-r-ag-e--Y-i-e-ld-.-Lb •.1:~r Acre Dry2! Fertilizer Treatment ~ : 1937 1938 1939 1940 1941:5 yr~~. No Fertilizor Check 600 lb. l;asic Slag, 150 lb. Muriate 1200 lb. Basic Slag, 150 lb. Muriate 2400 lb. Basic Slag, 150 lb. l1uriate 1200 lb. Basic Slag No Fertilizer Check No Fertilizer Check IT Lime, 600 lb. Su~er.f 150 lb. Muriate 600 lb. Super., 150 lb. Huriate 7560 7620 7140 7635 7530 6300 5985 7050 6765 5790 5790 5190 5520 5730 5055 5655 6645 5790 5610 5070 4080 6510 7140 6690 7050 6600 5580 5820 ~080 2040 2580 2340 2370 2100 2070 1560 2430 2190 1890 2310 1710 5700 5580 4950 5400 5340 5430 5220 6180 5550 6000 5340 5250 5740 5980 5495 5718 5660 5169 5300 6103 5683 5488 5485 4640 3 4 5 6 7 8 9 10 11 6900 6360 7020 5160 1200 lb. Basic Slag, 50 lb. Muriate~/ 6915 6 Tons [table Manure No Fertilizer Check 7230 6150 12 11 Experiment initiated in 1936 on an area established in Ku~zu about 1930. ~3// Fertilizer applied every 3 years unless otherwise noted. _ Harvested twice each year in June and just before frost except only 1 cutting in 1940 due to drought. k/ Plus 40~ lb. slag and 50 lb. muriate annually, CONCLUSIONS: The data from this test indicate that once kudzu is well established it responds very little to appli0ations of fertilizer. E. H. Evans Table 22 Pasture Fertilizer Experincntl-/ Tier l-P Tennessee Valley Substation 1938-41 Plot :Ferti1izor Treatment : Frequency: Green Wt. - Pounds ·per aero No. :Do1omite:Super:Muriato:of App1:L-: ' :: : Avg. " :Incroase :~I/l. :phos.: :catio~1 : 1938 1939: 1940 , 1941 :193g~1941:0vdlr J/ : :#/1. : #/1. ~ : : :_: : : Chock 1 2 o 2000 o o o o o o 75 o 1920 2020 5712 7034 3492 3624 4828 4060 4242 4098 4354 5566 5348 5078 5926 4056 5438 5844 5452 5014 4902 4090 4798 4848 4418 4854 4286 3516 5052 3018 3278 6842 30,94 4370 3706 8352 8528 7414 6670 8368 4548 9344 8936 8684 6174 6594 3712 7600 7956 4076 7052 6764 2974 6800 3536 3<)G9 6456 4466 4884 43L~4 o 291 2596 444 700 o 3 yrs. 3 yrs. 3 yrs. 3 2000 600 3986 10170 2894 3426 2448 6914 7486 7126 4 5 o o 600 o 600 o 6 ? o o 3 yrs. 3 yrs. o 3151 3093 1723 1672 4122 8 Q 2000 600 75 (cn1eiumcarb. ) 2000 600 75 2000 200 5992 11788 6136 10534 9324 7622 7691 6448 6524 9101 5105 10204 9761 9324 7566 6824 4514 8466 8824 4622 6228 6642 3628 6077 25 (Fall annua11y)3708 10 2000 200 25 (Spring annu.) 4226 10122 (200# nitrate annually) 2000 600 75 3 yrs. 9208 12902 12 13 14 15 16 17 18 o o o o 3378 8438 o 5197 4460 4513 2853 2209 2000 200 600 1000 600 5000 600 2000 600 2000 300 25 !~nual1y 10574 15458 75 in beginning 75 75 3 yrs. 3 yrs. 10240 14024 9410 13750 75 Do not repent 7348 11726 75 3 yrs. 5656 10142 3112 7140 o o o 75 o 3 yrs:. o 4100 4606 552 2306 2368 2000 900 20 21 7970 13494 7114 15378 3188 3816 6804 9190 23 2000 1200 75 (Rock phos.) o 1200 75 (Triple Super) 2000 200 75 (Basic slag) o 1200 75 3 yrs. 3 yrs. 3 yrs. 3 yrs. 0 lillnual1y 4614 10906 2212 2726 5808 9730 o 25 0 0 (Ba.sic slag) o 400 25 o 2449 1/ Oct. 12, 1938, fertilizer and lime weighed out and applied by hand. Seed carefully weighed out, applied by hand and covered with a corrogated roller. ing rate is as follows: Ky. Blue gra.ss 25#/f. Orcha.rd grass 15#/f. ltJhi to olover 5#/h Hop clover 3#/A D a11is grass 20#/1. 25#;'~ Common Lospedoza Soed- &/ Interval of application referrs to m aterial other than lime. to be made only in tho beginning. 3/ tdjusted for soil gradient 36A . . ~ll lime applicati~n E. M. Evans Pasturo Fertilizer Experiment Tier 1 P Tennes'soe Ve.lley Substation 19.38-1941 Yields aro 101" for greon weight, but this could bo duo to rob.tively fO\.J harvests during anyone yenr. Tho bost yield was obtained on treatment 13 which roceived 1 ton limo, 600 lb. superphosphate nnd 75 lb. muriate of potash initially with 200 lb. suporphosphnte and 25 lb_ muriate being npplied annually thor eafter, Response tm lime: Tho lime study wqs carriod out on treatments recoiving 600 lb. of super and 75 lb of murinteoverythroe years. Tho zero limo plot yielded 700 lbs. of green 1,000 lbs. of limo gave an increnso of forage more than the no-treatment check, 4,460 pounds over the check, 1 ton of lime produced 3,151 pounds and 2 1/2 tons 4,513 pounds mOre thnn tho- chock. Thel~c was no response ·to lime for rates higher th.~n 1/2 ton for tho four-year period of this study. One ton of lime without other minerals produced only 291 pounds of green fornge more than the untreated chock, Response to phosphorus: The phosphorus study was carried out on trontments receiving 1 ton lime initially and 75 pounds of muriate every three yenrs or 25 pounds of muriate as an nnnual treatmont, The rnte of potassium is quite low and could possibly hnve beon limitin~ to some extent. With the exception reforred to as treatment 13 above, the highest The yield wns only How- yielding plot received 1200 lb. of superphosphate overy 3 years. '146 pounds of greon weight more thnn that from 600 lb. of super every 3 years. evor, Rock phosphate was not a sntisfactory source of phosphorus, triple super and basic slag were much superior to rock, but were inferior to regular superphosphate at compnrable ratos (treatment 22 and 23 VS. treatment 7.) ~sponse to potassium: vl~S There no rate of potash study in this test but yield was improvod by 555 'Pounds per acre for 75 lb. of muriate every 3 years vorsus to no-pota.ah(tree:t'ment 3 vs, treatment 7). 3'6B Plot: . 0 No. 1 Sand Mountnin Substntion : Frcquoncy : Q!:9.illLl!t. Pound sZA Fertilizer #1A1V of : Avg. " Dolomite : Hurinto SUEer :AEElicatiol1: 1940 1941 :1940-41 0 0 600 600 600 0 600 200 200 0 0 0 0 75 0 75 25 25 75 75 0 75 75 75 75 75 0 75 75 75 75 75 0 75 75 75 . 75 . 37A ~; 0 0 .3 yrs. 3 yrs. .3 yrs. 0 .3 yrs. nnua.11y (Fr11) 325 416 379 _ 42L~ 2698 3504 5246 4798 4008 2328 5712 . 4.390 51.36 5956 4556 ~944 1512 1960 2813 2611 2167 1298 .3089 2367 2738 3357 2495 1104 2789 2578 2108 3018 3776 148.3 3077 2685 .3108 2691 2764 1.386 3066 1570 1561 2409 2 3 4 5 6 7 8 9 10 4000 4000 0 0 0 4000 4000 4000 325 267 465 .343 340 758 433 263 420 f..nnUal1) (Spring 3 yrs. 3 yrs. 0 3 yrs. J -yrs. 3 yrs. 9 yrs. 3 ·yrs. 0 .3 yrs. 3 yrs. .3 yrs. .3 yrs. 3 yrs. 0 .3 yrs. 3 yrs. .3 yrs. 1 yrs • " 200// NaN03 Annually 4000 600 4000 600 0 600 600 300 900 1200 0 Triple super 200 11 (Cal. Lime) 12 0 13 Blast Furnace slag 6000 14 15 16 17 18 19 20 2000 4000 4000 4000 0 4000 (.30Qh~ 5158 4772 3892 56n6 6992 2626 5726 4964 5790 5626 5142 2500 5716 2830 2816 4426 Ta 323 429 560 339 428 405 L,25 gypsum)Triple super 4000 200 . 21 (150t gypsum)Trip1o super 4000 200 22 (75# gypsum)Triplc supor 4000 200 23 24 4000 0 Triple 100 + 300 super 0 355 .386 - 272 415 310 305 391 25 (150# gypsum) (Cnl. Mete. Phos.) 4000 160 26 (150# msum) (Rock Phos.) 4000 1200 '27 (150# gypsum) 4000 28 (C .~l. Phos.) 516 0 (Bnsic Slag) 800 - -- -- --.' Plot: No Dolomito 0 0 Ec:dj]jzr:r: j!/,i?1 , Supor B1.sic Sl:::g 267 0 D.. . sic Sl!"~g 2000· _:Frcouoncy :,Qro cn "t. Pounds!A · l.vg • . of Huri.:'. to: 1.pplic{t tion: 1940 1941 1940-41 . == ?9 30 31 2':; 0 100 .'mnunl1y 0 5 yrs.21 335 247 372 3206 '2;G8 6316 1771 1318 0 3344 32 (200,;1 gypst~m in Rock Phose beginning only) 0 717 33 (200# gypsum in Cal. Phos. beginning only) 1290 . 0 100 5 yrs),/ 301 3884 2093 - 100 100 100 0 5 yrs.Y 281 3656 '7584 ~'354 1969 3°99 1846 952 34 35 36 4000 0 0 1500 Rock Phose 478 + Super 50 0 5 yrs.'J./ 413 Annu~11~/~/ 0 337 241 1662 1/ PrepC'.rod L ·~.nd thoroughly cnd disked in tho f . .:'.11 of 1939, double s c ction hr.rro'Wed in both directions ".fter fertilizer W'.S I"tpp1iod, · M".rch 6, 1940. Sooding: i mpo!'tcd Do.llis grc.ss Common lospedozn 11hi to Dutch Clover Orch'l.rd grass Kentucky bluegrl"tss 5# Rod top, Phosph ....t o ,,-pplicntiens on plots 7,19, 20, 21, · 22, 23, 25, 27 r.nd 28 to supply 96 ;~! P20, per ['..cre overy . 3 y:-s. "'nd 35 to be mnde in tho beginning nnd nt the beginning only. tpplicr.tion ef phos34 nnd 35 sot up on b".sis oquivnlent to r. • 240# P2 0 5 overy 10 yrs.) lOt 1Qf !jf 10# 10# ];/ 2,/ Murinte npp. on plots 31, 32, 33, 34 5 yec.r intorvl"tls. Phosphnte npp. in pho.te mntorinls on plots 31, 32, 33, ton of bnsic slag per ncro (12% P205 !;.,/ Phosph~.to on plot 35 equivalent to plots 31, 32, 33 ".nd 34 over 10 yenr period. 2/3 derived from initinl applic ~tion of 33.45% rook pho8. ~nd 1/3 doriv~d f rom annunl r.pplic".tion of 16% sUJ)orphosphnte. CONCLUSIONS: Yields from this experiment nrc exception".lly low for craun ltJeights bGinr: on the order of one tenth of what would bo expected from a ronlly productive pn.sturG. The low yield range ~.nd shoJ;'t duration of the experiment mt1.de compnrison of . . tre ntment effocts very difficult • . Tho best yiolding trcr-.tment u.".s 2 tons of :.- . ' .. lime, 1500 pounds 6f superphospha.te nnd 100 pounds of murido of .pota.sh par nero •._ . This trcQtment (No. 3/~) ..,\oJ();sto be repontod overy 5 Yofl.rs but t he oxpo rimont '-las . discontinuod "'.ftor onl~T·· t'Wo yonrs prob".bly duo to ~ ho ....vy infe;sk.tion of Common Tc>.b Ie 24 Lime ~nd Fertilizer Experiment No. 1 - tlfalfa Tennessee V~lloy Substation 1931-36 --Plot :Trc~tmont #71~ & : Iner. ~~- PoundsEer aero No. :Lime: J~cid . 11uriato: : . : ·Avg. :over • t Phos l • 1932 : 1933 : 193£t : 1935 : 193611:193~~J6:choc~~ 1931 . . -0 1 2 3 4 5 0 3000 3000 3000 0 6f}OO 0 0 1000 2000 0 0 0 0 0 0 970 · 1270 2910 4530 "4290 5720 3020 4230 5760 7260 4980 6180 ', ', 1640 ; 520 2 3240 4440 2760 4240 1600 . 3640 4240 6440 3160 5680 320 720' 880 1360 600 1080 2013 2795 . 3792 5201 3098 4345 ' ••• _ ... # • • , •• 511 1237 2375 0 1319 • 4032 . 7670 1876 2256 3400 4154 1708 3558 1706 3314 1088 < o· 0 1000 2000 0 2000 5210 6630 6970 8000 5020 7140 5970 6050 4740 6 8 9 10 11 7 · ·· 6000 6000 0 0 0 0 200 200 ., 200: t ' 6190 7720 4770 7100 5800 5630 2700 3809 . . 4760 , 880 5000 7400 1400 440 :{. - 43.33 5613 2810 4880 3146 381<:: 1815 1379 2731 0 2319 834 1756 0 2360 . 2560 4360 . 6000 2600. 2440 6000 1120 360 600 120 0 2000 (B,,'sic slag) 12 3000 0 13 0 0 356q ·\ 3760 0 1400 840 11 g/ 2/ 1936 vms the l!'.st cutting under the original plan. and replanted in tho fall of 1936. The experiment 1Ias changed Incroase of yield ovor check (corroctod for soil gradient). Treatments applied only initially. CONCLUSIONS: l.lthough tho average yio1ds ~ro not high, if allowance is mado for tho seoding yoar and tho IO\J yield tho yo , r tho stand \J!'.S plo\Jod under the yiolds average bot" \Jean 3 and 4 tons of hay por acro for 4 yoars on tho bettor treatments. gnvo tho groatost yield incru~.so Phosphorus O-nd lime tho soc-ond grco.tost. uaod 'In this DXfkrimont. ROsp~IJ.se +'0 [;0+,')8- sium vlQS not obtained nt tho E. M. Evc.ns r Qt(.{~ 38 \ Tnb1e 26 Lime, Phosphate; ::md Potnsh Experiment - :.lfa1fa Tennessee Valley 1933-1937 • . Plot: Forti1izer /lllll: No. :Lime:Super:Muriato: 1933 1 2 ~nfa1fa Hay- Pounds per acrc2l-~ Incro~;o·- - 1934 2490 2610 4380 4980 1215 2055 4125 4995 1020 4305 5205 5010 825 1935: 1936 3210 3405 6120 6450 870 ovor . I 1937£: 1937-37: chQ~_____ ' - ;.•vg. o (Bc si c sIng) 1000 0 0 o o 3544 4639 7691 7556 1376 4035 7549 7624 1549 7635 7665 7241 1226 7545 5989 7335 1039 1410 1140 2595 3045 420 975 2490 2985 360 2685 3270 3195 435 3090 3540 2985 270 1035 870 2338 2533 4470 4823 S9'T o 555 2852 3565 (Basic slag) 3000 0 3 (Basic slag) , 5000 0 4 5 6 o o - 0 1560 2085 o 0 600 7 8 (Basic slag) 1000 0 (Basic ' slag) 3000 0 (Basic slag) 5000 0 o 1158 2712 3111 400 400 400 2445 6630 6915 '765 6090 7470 7470 795 7365 660 1200 1710 375 1920 2475 2715 435 2640 2880 2040 375 2034 3567 3945 814 4347 5217 5126 9 10 11 12 o 0 o o 400 400 o 3550 (Dolomite) 6000 2000 (Dolomite) 6000 ·2000 (Ca CO)) 4437 4363 6000 2000 o 15 0 o 744 5124 5023 4842 559 o '4426 16.11 17 (Dolomito) 6'JOO 2000 400 (Dolorni to) ' 1 6000 50~ 409 (Dolomite) 25DO 2800 400 4995 4590 660 7710 7260 450 4236 o o o o ,11 1.11 plot treatmonts as indicated are repeated at each replanting ezcept certain onos on plot 14 and 15 as shown in footnotes. 500# super applied annually in spring beginning in 1934. ?J f:/ ~I :::.,l Troatment on plot 16 is roughlyequivn.lent to plot 8. :.pplied at every other planting. 3 cutting in 1933; 2 in 1934; 3 in 1935; 2 cutting in 1936; 1 in 1937. o f tho stand being §/ Land turned i mL1ediatq1y a£tor 1st cutting in 1937 on account too thin. i~ Increase of yiold ovor check (corrected for soil gradient) CONCLUSIONS: Thvro was r osponso to Dn.sic slag up to the 5,000 pound rate at each replanting. Thore was ~ yield incroase due to 'lime up to 6,000 Ibs. of Dolomite and response to potash at the 400 pound r n.to used. E. M. :Svans 40 Tablo 27 ttt~ibutod Limo, Phosphate and Potash Experiment - :.lfalfa The plots wero replnnted, fall 1941, rod failed to get and hold a good stand. 'failure to dry weather.Plowod tier, applied fertilizer and planted [1.gc.~n in 1942. :.lfalfa failed in 1942, 43 and 44 on these plots l.Jhile alfalfa planted on similar land (not previously seeded to f~fnlfa) and given similc.r fortilizor treatmont has mde fullytwico the ton.nage of hay. Tho nfa.lfa on tho plots looked as if it \-lore diseasod, made poor growth and the p1..9.nts ha.d a tendency , to doo out to where wo hlld no stand. In viow of tho fact that we have IlUldo a failuro on tho plots for tho past throe years, we decided to "plow under tho sad this fall and pla.nt to soma other crop for two or three years. Lime, Phosphate and Potash Experiment - !.lfalfa (Revised) Tennessee Valley 1938-1941 : Fertilizer #/L f~falfa Hay-Pounds per "aero Plot No. ------~~~~:----------~~~~~~~--~~-l~,v~g~.~~·----------------' :Lime:Supor:Muri~o: 1938 : 1939 : 1940 4620 4620 4635 4800 4245 8535 4500 5175 2550 4560 4320 5640 2310 5205 6480 6075 2625 7425 7590 7725 2010 2340 5730 2850 3060 1020 19415/: 1931-1941: Incr. ovor chccks* 480 2625 885 1200 840 2921 5378 3218 3559 1803 3818 3236 4016 1901 3668 4556 4500 2066 5153 5408 5250 1654 100 0 (Basic slagW _" / 2 1000 0 60~ o 2736 855 1475 3 o o o 4 5 o o o 6k/ 7 0 0 2805 _':lI(Triple s~I1or)lI ' 50OU188 200~ 3960 o o 1991 1385 2141 L~721d 2025 2910 3615 1440 , o 0 0 0 o o 4575 5280 3135 4995 5775 5835 3150 6075 6345 6090 2640 1140 1530 720 1320 1665 1710 765 2025 2175 2010 675 8 9 10 11 12 13 14 15 16 17 o o o o o 1726 2573 2474 0 0 o o o o 3150 4305 4380 1725 5085 5520 5175 1290 o o 0 0 ·0 0 o 3190 "548 3493 2000ZI 0 500ll 0 (Do lomi tal) 1/ 3500~ 50~ 0 o o o o 11 a; Jnnual ~pplicc.tion from 1938 - 41· 1938-39 only, Appliad in tho begilTI1ing (1938-39~ only ~ 1pp1ied 1940~4l'only f./ In fall of 1939, plot 6 received ' 250~1! per acre of finaly ground mn.rble dust r.nd the Gast 'ht1.lf received 25011 of gypsum per acre. l..nnunl n"'I'Plie~tion of ;Lime began in 1940 5/ Dtw to drouth only one cutting of nlfalfn made in 1941. ~/ Plot 6 cast hnlf (gypsum) yielded 5~~/p1ot 1st cut~ing wcst half (no gyPsum) yielded 70#/p1ot 1st cutting. CONCLUSIONS: Tr..b1o 28 Sericon Lcspodoza FertilizJr Test - Snnd Mt. 1941 - 1944 Plot :Forti1izer { /J.i :Froquoncy of DryH~v- Eounds EQr aero NQ.a...J,Supcr lfurio.to: l. pplication : :t941 : 1942 1943 1944 • .\vg. 1941-1944 . 1 2 3 4 5 6 0 200 200 · 400 300 1000 0 0 50 100 200 200 - 0 1'.nnu::>.11y :lnnuaJ.ly 2140 3165 3704 2720 5185 5585 5045 5925 5460 2355 3250 3570 3200 3445 3340 1610 1820 1580 1630 1330 1260 2206 3355 3610 3244 3544 3590 )Wary 5 ·yo::i.rs 3100 Evory 5 yrs. whon noedod 3476 4300 CONCLUSIONS: Thoro was n yio1d increase duo to trc2tment up to 200 pounds of super phos- hate .'l.nd 50 pounds of muriato of potnsh per ['.cre annun11y. thnn these wore Dot tested on an ~nnur..1 Higher r.'1tos besis but a comparison of this traatment estQb1isr~ont with higher rntes during years immedir..te1y following indicates littl~ or no consistont response to ratof! of ferti1izors above this amount. E. H. Evans Table 29 Oat Fertilizer Experinent on Vaiden Soil - Black Belt 1935-40 Yield of Oats in, Bushels per acre - Vaiden Soil Plot No. 1 Fertilizer Fomula 4 J/ Bu.1A~ 1935-40 W 0 6-0-0 6-3-0 6.6-0 23.7 25.7 39.0 44.3 18.9 44.3 40.7 " 2 3 4 5 6 7 u a 6-9-0 ?J 6-9-0 J! iJ 0 6-9-0 "" 6-9-0 47.5 24.2 9 10 11 12 13 14 21 Y 41.9 37.4 42.3 25.5 39.9 3-3-0 6-9-0 0 3-3-0' 2/ 11 ~I Applied at rate of 600 pounds per acre. Superphosphate 2/ The 9% phosphorus is applied every other year. ~ Phosphorus applied as basic slag. Phosphorus as slag applied every other year. Nitro~en 21 £1 21 Nitrogen as annonium sulfate. All other plots get nitrate of sod~. applied as topdressing each spring. Phosphorus applied in the drill. Average for 3 replications. Minerals broadcast on all other plots. QI Table 30 Ont Fertilizer Experiment on Sumter Soil --- Black Belt 1932 - 40 Yield of oats in bushels per aCTe - Sumter soil Plot No. 1 2 3 4 Fertilizer Formula 6-lD-.4 V Bu./A.kl 1932-40 40.9 42.7 37.1 I 6-10-0 .3-10-.4 9-10-4 6-10-4 44.8 41.3 28.0 29.9 ~oda 5 6 7 8 9 l~ 6-0-4 0-10-4 Nitrate of 6-10-4 46.7 39.5 37 • .3 .35.4 37.1. 6-10-4 Ammo-Phos y' 6-10-4 ' Ammo-Phos 6-10-4 " 11 V 12 13 6~lO-4 V 6-10-4 41.7 20.6 14 • Applied as topdressing. 11 Applied ~ .. at rate of 600 pounds per acre. Fertilizer made from superphosphate, ammonium sulfate and muriate except as indicated. In general, minerals were applied before planting and nitrogen as a topdressing except as indicated. Y All fertilizer applied at planting, broadcast and disked in. Nitrogen fertilizer on all other plots applied as topdressing each spring. for 3 replications. SUMMARY ~/ Ave'r age Oats on Sumter soil gave a response up to 36 lbs. of nitrogen and showed an increase of about 14 bushels for 60 pounds of P205 over no phosphorus. Wo response to potash was obtained. Nitrate of soda was a better source of nitrogen on this calcareous soil than either AmmoPhos or ammonium sulfate. Data from this experiment for the years 1932 through 1936 are published in Experiment Station Circular No. 78, July 1937. C. M. Wilson 44 Table 31 A Cropping System: Sources' of Nitrogen No. 1 Two year rotation of cotton and corn. Plot No. Source of ~/ Sand Mt. : Tenn. ailey: Wiregrass:Tenn.Valley:Wiregrase 1929-45 1929-45 1176 1605 1604 1547 1110 1504 1433 1930-40 820 1404 1455 1323 708 1359 1253 1929-45 1313 1672 1658 1683 1161 1523 1523 :1930-41 973 1492 1587 1533 947 1602 1449 1 None Ca1-nitrrAl 603 1332 1455 1458 57'21128 1155 3 4 Sodium nitrate Sodium nitrat~/ (ail under) None Ammonium sulfate Ammonium sulfate61 (all under) Cyanamid ammo-phos 5 6 7 8 9 No average as treatment changed 542 1039 1489 1519 1510 706 1382 1405 1006 682 1095 1520 927 1513 1568 1425 None Urea Calcium 10 1351 11 12 13 nitrat~/ 1349 956 1535 1540 1187 Di-ammonium phosphat~/J/ None Leunasa1tpeter Cotton seed Calcium Non.e 559 1145 977 14 15 16 17 No average as treatment changed 1428 1266 617 mea1~ 1592 1608 1228 1440 1437 8.31 15,77 1614 1586 1532 cyanami~/ 12.32 942 11 Fertilized at rate of 600 1bs. 6-10-4 per acre. K 0 from muri~te unless, otherwise stated. 2 All P20S supplies by di-ammonium phosphate. Summary P205 from superphO'sphate and ~ All N unqer cotton 1I Iz/ Changed to urea in 1942 See Sour.ces of Nitrogen Bulletin C. E. Scarsbrook Table .318 Cropping System: Sources of N~trogen ... No. 1 Two year rotation of cotton and corn. Yield of corn in bushels Qer acre Limed • :Sand Mt.:Tenn.Va11ey:Wiregrass:Tenn.Va11ey:Wiregrass 1930-40 1929-45 :1930-45 1929-45 1930-40 Un1im~d Plot No. 1 2 3 4 5 6 7 8 9 10 11 12 1.3 14 -' . Source of N1I . · · · None Ca1-nitrc#/ Sodium nitrate Sodium nitrat~ (all under) None Ammonium sulfate Ammonium sulfat~/ (all under) Cyanamid ammo-phas None Urea Calcium 6.3 32.8 36.. 2 .33.5 6.4 30.6 28.7 25.9 .39.7 39.5 38.4 22.4 37.1 38.0 11.9 25.8 28.3 26.2 10.4 24.3 24.7 25.6 40.5 40.1 39.0 23.5 38.0 38.8 18.5 29.7 28.9 27.6 16.2 .31.0 29.0 No average as treatment was changed 6.1 31.1 21.3 37.8 38.9 34.6 22.9 10.2 25.6 26.9 25.8 10.5 22.7 38.8 39.8 36.8 24.2 15.8 29.3 29.0 29.5 17.0 nitrat~/ 34.6 Di-ammonium phoSPhat~/li 27.9 None Leunasaltpeter Cottonseed mea1~/ Calcium cyanami~/ None 6.2 No average as treatment was changed 23.5 26.9 7.0 37.8 39.1 25.6 25.2 24.8 14.3 38.6 39.9 26.4 28.4 26.4 18.1 15 16 17 1/ Fertilized at rate of 600 1bs. 6-5-2 per acre. from muriate unless otherwise stated. All N under corn All P205 supplies by di-ammonium phosphate. Changed to urea in 1942. Summary P20S from superphosphate and K20 See Sources of Nitrogen Bulletin C. E. ScarsbroOk 46 Table 32A • Sources of Nitrogen No.2 - Eight Year (1946-53) Average yields of cotton produced with sourc e of nitrogen indicated of Se'ed Cotton Per, .AcreTnL~ No.:N P "~r Acre: ource 0 :Monroe::Sand Ht'~:TenJ;l. ': WiregtassiAv;: __ " _ _ ___.__:__,_ _. ._,__ ,___ ~... ____ ._: ville : ' . ' :Va11ev : : .. }~lot ;Po;;:d;-;f-;-----;-------~-;iI--'---;-Yie1dS - --""'-------- ..... . 1159 1482 1395 1478 1337 794 1154 1504 1505 1470 ~------.----- 1 2 36 48 48 48 36 48 48 48 Amm onium nitrate + limestone Ammonium nitrate + 300 1b3. limestone in 1946 Sodium nitrate + basic . lag s A!n monium sulfate + basic slag Ammonium nitrate + limestone k~monium z/ 1292 1622 1535 1566 1463 1419 1608 1546 750 939 1005 1076 795 587 988 949 1089 1387 1360 1398 1214 739 1401 1367 3 4 5 6 7 1262 154 1570 1541 sulfate 1h~3s tone Ammonium sulfate + 20 dium nitrate A~~onium 1438 1433 8 9 10 11 36 48 72 96 36 36 48 48 36 nitrate + limest one 123S 1565 1 ~94 16L~4 1191 1452 1820 1638 1202 1410 1348 1448 1145 1494 1589 1645 1680 1522 1573 1609 1564 1319 770 1027 1143 1064 837 1046 1001 891 702 1173 1408 1576 1507 1219 1364 1340 1304 1092 ~. Sodium nitrate 3/4 + ammonium sulfate 1/4 Sodium nit.rat e 3/4 + aJl'uTIoni ', m ' sulfate 1/4 Aodium nitrate 3/4 '+ olJolIDonium sulfat e l/L~ Amm onium nitrate + limestone Ammonium nitrate + limestone Ammonium nitrate + 1imestone21 A~~onium nitrate 12 13 14 15 16 17 1316 1427 1401 1311 1203 Ammonium nitrate + limestone 11 ?/ Treatments since r evision in 1946. outline. For treatments prior to 1946 soe old project Where limestone was added the amount \Olas sufficient to neutralize the acidity. All plots received P2D5 and K20 at rate of 60 pounds per acre except plot 15 which received 48 lbs. P20 5 and 24 lbs. K20 per acre. Conclusions: See Sourcos of Nitrogen Bulletin. i C. E. ~Scarsbrook Table 328 Sourcos of Nitrogen No. 2 - Eight Year (194 )-53) ;. vG go yi elds of corn produced wj_ tho source of nitrogen indi ca t8d ra th Plot: . Pounds of: No. :N per acre: Sourco of :Honroe-:Sand : Tenn. : l{ir egras s : Ave. _ _.,.::...:;v.;::i;.=ll e : !vIt. : Valley: : -------- -:- - .._._ ,- - - - - ...- limostoneY 38.4 25.0--32.7"'--21.5~--29.4 1 monium ni tra to + J.m 36 NY --:-==li81d ' c;r - corr;--~n-bus: p~~_ 2 3 4 48 48 48 36 48 48 48 36 48 72 96 36 36 48 48 36 J.nunoni'Um ni tra t o + 3000 Ibs. limestone in 1946 Sodium nitrate + ba sic slag . t".mmonium sulfate + basic slag J.mmonium nitrat3 + limestone Ammonium sulfate l~mmonium 48.4 41.3 44.1 43.0 41. 8 44.8 45.8 49.6 38.2 23.7 21.7 37.1 23.8 38.5 39.6 36.4 29.3 30.9 36.3 37.8 27.2 37.3 46.3 42.2 39.6 31.8 38.2 38.5 39.4 30.9 37.9 46.2 50.1 31.6 35.6 42.4 40.8 32.8 22.6 24.7 19.9 19.0 23.7 21.0 17.3 22.5 5 6 7 sulfate + limestone 8 9 Sodium nitrate Ammonium nitrate + limestone Sodium nitrate 3/4 sulfate 1/4 + 45.8 45.1 38.7 21.8 10 11 ammonium 47.6 41.1 52.4 54.7 40.4 44.1 62.2 72.0 22.7 28.9 Sodium nitrnt ~ 3/4 + ammonium . sulfa t e 1/4 Sodium nitrate 3/4 + ammonium sulfate 1/4 Ammonium nitrate + 12 13 14 15 16 17 25.9 19.6 22.6 50.7 28.6 32.8 39.0 36.9 limestone . :immonium nitrat e + limestone 1mconium nitrate + limestone21 Ammonium nitrate Ammonium nitrate + 48.8 41.7 48.3 37.4 22.8 22.9 21.2 19.6 .. ._-- limestone _._-- _ -- .- - - - ... 38.5 ,- ... __.-._--- 28.4 11Treatments outline • since r G vision in 1946. For trea t m ,mts prior to 1946 s ee old proj ect There limestone was added the amount was sufficient to neutralize the acidity. .?iv i Lll plots received r e~ e iv ed P20~ and K20 at rate of 60 pounds per SCM H xccpt plot 15 Vlhich 24 Ibs. of PZJ5 and 12 Ibs. of K20. .J ' , Conclusions: See Sources of Nitrogen Bulletin C. E. Scarsbrook 48 Table ... . Plot No. 33 Ni trate of Soda. vs. Sulfate of 1immonia - Mdn Station Treatments 11 1053 1028 ;22 1004 894 1202 885 1216 1040 331 1030 (Unlimed West Section) 1 2 400 1bs. nitrate of soda 300 Ibs. ammonium sulfate No N 200 1bs. nitrate of soda 150 Ibs. ammonium sulfate 400 1bs. nitrate of soda 300 1bs. ammonium sulfate No N 3 4 5 6 7 8.33 1170 895 317 1060 870 8 346 952 866 9 10 200 1bs. nitrate of soda 150 1bs. ammonium sulfate (Limed East Section) 1 2 400 1bs. nitrate of soda-360 lbs. lime 300 1bs. ammonium sulfate-360 1bs. lime No N - 180 1bs. lime 200 1bs. nitrate of soda - 180 lbs. lime 150 1bs. ammonium sulfate - 180 lbs. lime 400 1bs. nitrate of soda - 360 1bs. lime 300 1bs. ammonium sulfate - 360 lbs. lime No N - 180 lbs. lime 200 lbs. nitrate of soda - 180 lbs. lime 150 Ibs . ammonium sulfate - 180 lbs. lime 938 1135 230 821 804 1017 1160 338 874 1289 1227 315 911 3 4 5 6 7 848 1188 1299 333 971 999 8 9 10 914 11 EJ Prior to 1951 each plot received 800 lbs. 18% s,u perphosphate and 200 1bs. of 5($ mur ::'at8 0::' p::rC ashe BElgirming ~_n J951. superphosphate reduced to 300 1bs. per acre of 18% material ar,d r ~ ur ia t8 of potash to 100 lbs. of 6($ material. Es-Min-E1 applied to all p:'ot8 at r ate of Ie ) Ins. per acre. Conclusions Lime caused a decrease in yield where nitrate of soda was applied but increased -;.1 th~ yield when applied with ammonium sulfate. Lime was of no value unless nitrogen was also added. On limed plots there was no difference in the yield's from equivalent amounts of nitrogen f rom either s ource . Nitr ate of soda was superior on unlimed plots. The 64 pound rate of nitrogen gave higher yields than the 32 pound rate. , Table 34 Corn V ariety Spacing and Rete of Nitrogon 1950-53 : Ni trogellJ/: Drill row spacing Location Variety :per acre IS" 12" 24" :in lbs. A 30" 29.0 30.3 29.1 2S.9 .30.S .31.6 30.S 31.1 Dixie IS Wiregrass SUbstation B 30 60 90 120 30 60 90 120 25.7 2S.1 24.5 23.2 24.S 29.4 27.0 26.1 2S.5 26.6 29.1 25.S 27.S 27.6 2S.5 2S.6 2S.7 29.S 25.7 26.4 31 •.3 .32.4 .31.6 31.3 Dixie 11 u. Tennessee Valley Substation A S. 13 30 60 90 120 .30 60 90 120 19.5 2S.2 .32.2 33.1 19.5 26.0 32.4 32.4 26.7 31.2 34.9 .36.4 26.0 35.S 2S.9 37.1' 29.1 37.0 3.3 •.3 .32.9 29.5 30.2 .3.3.7 34.S 2S.1 .34.3 36.S 36.0 .37.4 36.5 33.3 33.6 B Dixie 3JlI 30 60 Sand Mountain Substation A P.A.G. 620 B 120 30 60 90 120 90 20.3 44.7 64.3 72.4 lS.5 33.4 4S.9 52.0 31.6 52.1 63.S 69.3 2.3.S .3S.6 50.9 50.2 35.7 51.5 60.4 63.5 26.7 .3S.S 50.S 52 •.3 37.7 53.0 5S.0 5S.5 27.0 40.5 49 •.3 47.7 Dixie 3JY A Lower Coastal Dixie IS Plain Substation B .30 60 90 120 30 60 120 90 27.S 39.7 .3S.2 4.3.2 2S.3 35.7 41.5 44 •.3 27.8 35.S 36.9 35.8 30.0 39.9 41.9 41.3 2S.7 35.9 36.1 35.4 31.3 36.5 41.0 37.S 26.7 32.0 .35.7 32.5 29.7 .34.6 .39.3 37.6 N.C. 27 A .ixie IS Gulf Coast Substation B 30 60 90 120 .30 60 90 120 62.9 77.0 71.4 76.0 59.9 72 ;3 76.8 79.8 65.3 6S.1 71.6 72.5 65.8 67.7 74.4 74.1 54.6 60.5 62.4 62.1 49.0 66.4 65.2 62.S 55.6 55.7 57.0 59.1 46.6 55.4 57.6 60.6 Cokers S11 1/ - Dixie 18 from 1950-51 N.C. 27 from 1950-51 All plots received P20S and K20 at rate of 60 lb. per acre. 50A ?J J/ -2- CONCLUSIONS Wiregrass Substation Best spacing 18" - 24". No response to over )0 lb. N. Tennessee Valley Substation Best 's pacing .18" - 24". Response to 60-90 lb. N. Sand Mountain Substation Best spacing 18" - 24". Response to 60 - 90 lb.' N. Lower Coastal Plain Substation Best spacing 12" - 18". Response to 60-90 lb. N. Gulf Coast Substation Best spacing 12". Response to 60 - 90 lb. N. c. E. Scarsbrook ~ Table 35 Rntes and Dntos of Application of Nitrogen to Oats at Four Locations ________ 1952-192A_ _ __ :J2!:l matter produced before Na!:£h.l: Grain in b!d:.-per acre Treat- :Nitrogen :Lower: Upper : Lower: Upper :Pied-:Black mont :per a· re c :Coasta1: Coastal: :Black :Coastal: Coasta1:mont :Belt No. tin pounds 1/: Plain: Plain : Piedmont:Be1t ~: Plain Plain :1953-:19531952 :1953 - 54: 1953-541 1954 1952 :1953-54 :1954 :1954 . ~--------~---~------~----~-- • 1 2 0-40 40-40 0-0 20-20 40-0 40-40 40 AE-40 80-0 60-60 Not Clipped 637 1262 1718 1')74 890 852 705 728 755 835 895 620 744 1190 Not Clipped 1094 1209 1495 1556 1582 1811 1715 1974 Not Clipped 979 953 942 1032 1146 901 932 1235 76.9 71.4 18.7 42.4 16.2 54.4 54.9 21.7 61.3 59.9 72.1 69.9 52.3 65.4 56.8 68.1 70.3 53.0 70.5 69.8 21.0 31.1 27.3 40.1 11.0 18.8 18.5 24.4 8.2 22.8 3 4 5 6 25.1 32.2 25.6 35.9 9.8 26.4 7· 8 9 21 2000 2197 1890 29.8 33.4 25.3 30.9 10 40-40-40 11 2579 ------ 11 gI First nitrogen applied at planting, second application after second clipping except as noted. All plots received 1000 lb. per acre of 0-16-8 before planting. Firstnitroeen applied after emergence. Second application of nitrogen after first ·clipping and third after last clipping. One year average as part of forage yields lost to stock in 1954. Conclusion~: 21 ~. , Nitro~en applied in the fall had no effect on grain yields. The highest forage High forage yields were obtained from 120 lb. N applied in three applications. yields did not reduce the grain yields. C. -E. Scarsbrook 51 Tnblc 36 Rates of Seeding Grain Sorghum Sand Mountain - 1947, 48 & 49 Rate of Seedingy Lbs./A. 4 4 ~§be1s ~e~ Variety Martin's Combine Early Hegari Martin's Combine Early Ffegari Martin's Combine Early Ire gari Martin's Combine Early Hegari 1947Y 37.6 35.3 43.9 52.4 41.4 45 .. 2 39.8 31.1 Agre Av. 1947-49 1948 31.9 30.5 33.1 33.6 30.1 28.9 30.3 25.6 1949 14.0 22.J 13.4 20.3 13.9 20.5 15.3 17.4 V.8 29.4 30.1 35.4 28.5 31.5 28.5 24.7 8 8 12 12 16 16 V ~ 1947 yields were obtained from "the Grain Sorghum Spacing Test at Sand Mountain which is essentially the same test. Fertilizer applied at the rate of 60~ of 6-8-4 per acre. CONCLUSI ONS: There was relatively little differenCe in yield due to rate of seeding. The data indicate that 4-8 pounds of seed per acre are adequate for top yields. T ~b10 37 The Effect of Rate of Nitrogen as a Side Application on the Yield of Grain Sorghum Upper Coastal Plain 1948-49 PROCEDURE: Approximately 10 pounds seed planted per acre. Stand averaged 3-1/2 and 2-1/4 inches apart in the drill in 1948 and 1949 respectively. Rows were 3-1/2 feet apart. Fertilization: 300 1b./A. of 4-10-7 ~pplied at planting. The rates of N shown below were applied the second cultivation. Ammonium nitrate was the source of N used. Eaeh treatment was replicated three times. Rate of N as a sidedress per acre NOne lfi/ N. 32# N. 48# N. 64# N. Tield - Bushels ~er Acre A-w.. 1948-49 1948 1949 47.6 52.7 58.9 55.6 53.3 40.4 42.4 41.6 44.1 43.9 44.t 47.6 50.2 49.8 48.6 Table .38 spacing and Rate of Nitrogen as Side Application on Grain Sorghum upper Coastal Plain - 1947-49 Average 1947-49 Rate of Per ACTe ~ as Sidedressing No N. Yield ;in Bu. ller Acre for Each Sllacing 2-174" 43.0 44.5 50.2 53.4 59.3 4" 44.7 48.4 53.8 57.8 45.3 8ft ' Un 40.3 44.9 49.3 50.3 45.2 34.0 37.2 34.7 38.7 39.0 16# W. 3'211 N. 48# N. 64# N. --------------------.--------------------------------------------Planting: 10-12# seed per acre planted with tractor. 1946 - 200# 6-8-4 per A. in drill at planting. Fertilization: Thinning: 1948-49 - 300# 4-10-7 per ~. Stalks pulled to desired spacing by hand. Ammonium nitrate at second cultivation at the rates indicated. Sidedressing: CONCLUSIONS: (1) There was a definite (minor) response of grain sorghum to each added increment of nitrogen at all spacings with three exceptions. The exceptions were the 4 and 8 inch spacings at 64 pounds of N and the 12 inch spacing at 32 pounds of W. (2) Four inch drill spacing gives highest 7ields at all levels of N. except 64 pounds per acre. In this case 2-1/4 inch spacing resulted in the highest yield. Table 39 Grain Sorghum Spacing Test Sand Mountain 1947-49 Bu§hels ller Acre Variety M artin ts Combine Early Hegari Martin's Combine Early Hegari Row Width 1947 47.8 45.1 37.4 46.2 1948 48.9 40.0 50.3 29.8 1949 11.8 10.8 9.9 14.9 Av. 47-49 3-1/2 ft. 3-1/2 ft. 3 ft. 3 ft. 36.2 32.0 32.5 30.3 Fertilizer applied at the rate of 600# 6-8-4 per acre, 8# of seed used per acre. CONCLUSI ON: (1) The data indicate that there is no advantage to 3 ft. row spacing over 3-1/2 ft. row spacing. F. S. McCain 53" Table 40 Rates ef tTitregen Sidedressing 6nG~ain Sorgh~ - Upper Coastal Plain ____ 1948-1949_ '(ate ef N : Yicld:of Sorghmn ' Ffu,r/A : §!dedressing: 1948 : 1949 Avg, 1948-1949 Nene 16 32 48 64 47.6 52.6 58.9 55.6 53.3 40.4 42.4 41'. 6 44.1 43.9 44.0 47.5 50.3 49.8 48.6 300 lb. 4-10-7 applied at planting CONCLUSIONS: Nene '. Table 41 Commercial Nitrogen in tddition to a Good Crop of Vetch on Corn Upper Coastal Plain Substation 1949 Commercial N lb.lA None 16 32 48 . • . Yield ' of corn ~.IA 64.5 62.1 63.6 66.2 Pioneor 505 planted 300 lb. 4-10-7 applied at planting f~onium nitrate was sourco of nitrogen 15 inch spacing in 3 1/2 foot rows About 15,000 lb. groan weight of vetch turned CONCLUSIONS: . Test not conducted long enough to draw conclusions. Tc..blo 42 Rate of Topdressing Nitrogen on Oats-Upper Coastal Plain Substation 1945-1950 ~~~~--------------~~-~~~~~~~-------------~--~~.~ Rate of N : Yield of Oak,.g1!.JA Avg'. ' I " 1945 : . 1946 1947: 17.0 28.7 46.0 57.9 69.6 71.7 1948~.'::"":~19~ · ' 4~9-:--=-l~9~:-:: , -:1945-1950 - O~ None . 16 Ib~ 32 1b; 48 1b~ 64 lb. 80 lb. 11 11 13.6 27.9 44.8 64.8 10.7 26.8 35'.2 38.5 55.9 54.6 32.8 61.6 71.6 ' 75.7 95.0 78.6 31.9 57.9 67.8 89 •.8 80.0 88.4 '1.3.7 34.0 43.4 60.2 57.4 65.2 21~6 39~5 64.5 71.6Y 71.721 5L~ 225 lb. 4-10-7 applied at planting Variety: Fulgrain Soil Typo: .~ t,~ood fino sandy loam 11 U Those ~ atos not used in 1945 !.:vorago 1946-l950 Table 43 Rates ot: Nitrogen Side Drossing and Spacing of Gro:ill Sorghun Upper Coastal Flain Substation - 194~f949 Yield in"Bu 2 1 2" • 4" 1948 N Side Dressing 1b./A . /, \,Ji th 8" 31.3 42.9 42.9 46.5 52.7 -None 16 32 48 64 • · • .' 4" 32.5 35.2 41.4 39.3 36.8 33.2 42.8 33.6 36.8 32.9 : '''8'' : . 12" 1949 21.8 24.2 23.2 29.3 23.3 21.8 50.9 3LJ 37.9 45.1 67.0 52.7 36.2 59.0 67.0 '38.8 49.1 50.0 59.8 65.6 57.6 21.8 19.6 27.1 17.8 F1anted in 3 1/2 foot rows 300 lb. 4-10-7 applied at planting to all plots Nitrogen from sodium nitrate CONCLUSIONS: None Table 44 Sources of Nitrogen for Oats - Upper Coastal Plain Substation 1945 - 1950 Yio1d of Oats Bu~ZL 6 • 1947 • 1948 194 • . Source of }Il/ -l~onium 1.2'~5 • • . ' . . 1249 76~8 _Avg • 1950 :1945-1950 51.6 50.4 ' 44.3 56.3 57.4 36.8 5?~5 .- -- Nitrate 46.0 fmonium 'Sulfate 41~6 Urrunon 34.7 Sodium Nitrate 1/2 !~onium Sulfate 1/2 49.~/ Sodium Nitrate Cyanamid 46.5 48.3 38.6 40~8 46.0 43.9 41.6 37.2 42.3 77.8 74.2 77.0 79.4 79.3 82.6 68.1 97.0 80.5 70.1 56.8 50.7 60.0 ' 60~8i;./ 53.5:2./ 44.5 ---Val~iety: 225 Ib 4-10-7 applied at planting. Fu1grain Soil type: 1.tvlood fino sandy loam 11 32 lb/A applied 1945 - 48, 48 1b appliod beginning in 1949 -application made March 1. ~ Not used until 1946 ~ Not used until 1949 41 Average 1946 - 1950 ~/ l~verage 1949 - 1950 CONCLUSIONS: :.rnrnonium nitrate, ammonium sulfate, sodium nitrate and Do mixture of sodium nitrate and ammonium sulfate arc equally satisfactory a source on oats but all these sources arc superior to uramon and cyanamid. Table 45 Treatment 32 32 32 32 lb 1b 1b 1b nitrogen nitrogen nitrogen nitrogen Time of Applying Nitrogen to Oats Upper Coastal P1ains-1945-50 • 194~ • 17 11 11 11 :Date of : : LI112lication I Feb 15 Harch 1 Harch 15 !..pril 1 46.7 46.4 39.0 28.5 Yield of Oats 1246 : 121P ' 50.0 50.6 53.8 42.1 45.9 40.0 39.0 40.2 .BUilZA i2lt8 63.9 70.9 72.6 62.8 1242,.;.: ,1950 86.9 4LO 72.4 39.4 81.7 56.3 59.4 48.1 J.vg. 1245.;.50 56.5 54;2 55~9 46.3 225 lb 4-10-7 c..p1;liod at planting Soil type: l.tHood fine snndy loam 11 Chnngod to 48 lb in 1949' Vtlriety of oats: Fu1grain 1945," Victorgrnin 1946 CONCLUSIONS: Peb, 15, ~br. 1 or Mar. 15 are equally satisfactory as datos or top dressing onts for grain. ~pril 1 is too late to topdross for the best yielde. C. :s. 2> carsbrocik '-5 Table 46 Effects of Manure, Vetch, and Commercial. Nitrogen and their Residues on Yields of Cotto~ and Corn In 1925 an experiment was'started at Auburn to compare the effects of 5 tons manure, vetch each Hinter, and 52 pounds of nitrogen from sodium nitrate annually on yields of cotton and corn in a two-year rotation. These treatments were applied for 18 years and .discontinued for five years to determine their residual effect on yield s. After the pssidual study all plots were planted in corn and received 80 pounds of commercial nitrogen from 1948 through 1955. Yields are pre sented in the table.• Table ' Summary of Cotton and Corn yields from ' Manure, Vetch, and Commercial Nitrogen and Their Residues, 1925 - 1955. Treatment No,. 1 2 3 4 5 · • · · ~ Treatment =_ 1925 - @- r -+.2~7;;/ ll9.4.8ill.z! Pounds : Bushels : Pounds fBushe1s:Bushe1s • Seed Seed Corn . Corn Corn Cotton I Cotton '" .. . ~~ No N tons manure NaNO., 392 1713 1442 1358 439 7.9 42.1 38.6 32.8 6.6 214 1027 468 524 5.6 29.0 14.4 16 ..0 47.9 52.8 50.0 50.0 32511 Vetch No N 67JiJ . 11 ~I Residue study 1942-47. 24.zY - --- 48.8 All plots received 600 pounds of superphosphate and 100 pounds of muriate of potash per acre annually. All plots received 300 pounds of 0-14-10 annually. ~I All plots were planted in corn and ' received 400 pounds of 4-10-7 and 200 pounds of ammonium nitrate. kI Treatment 5 received 225 pounds NaN0 3 from 1943 through 1947. ~funure produced 271 pounds more seed cotton and 3.5 bushels of corn more than did 325 pounds of NaN0 3 for the initial 18 year period. Vetch produced 84 pounds of seed-cotton and 5.8 bushels of corn less than did the NaN03. Average yields from vetch were low because of large fluctua~ions in amounts of vetch produced from year to year. Average yields of green vetch turned were 7000 pounds for cotton and 6351 pounds for corn. Yields ' of cotton and corn on plots which received only phosphorus and potassium were extremely low. . ' . •.. During the residual study, the effect of manure W'a8 ' outstandfng. The ~erage residual effect of manure for five years was 813 pounds of . seed cotton and 23.4 bushels of corn. Sodium nitrate and vetch had about the same residual effect but much less than the effect of manure. Hhen 80 pounds of nitrogen was applied to all plots in 1948, yields . were increased tremendously 'onall plots. Check plots which had averaged 6.3 bushels of corn for 23 years produced 50.6·bushelK of corn in 19~8. The effect of manure was still present in 1950, eight years after the last application. J. T. CQ-pe Tab10 47 Seed Yield of Tc.11 Fescue Fertilized 11lith Different Rt'.tes of Nitrogen. Black Belt Substation. Avorc.ge of 4 Replications 1951-1953 Pounds of Nitrogen • per acre Sept. 1 : Mnr. 1 I 0 48 0 16 32 32 0 48 0 0 48 32 16 32 64 48 . 86 153 162 177 148 144 180 212 Pounds of Seed per acre 1951 • . 132 223 275 246 220 263 312 350 1952 93 131 263 164 130 194 301 233 1953 217 385 400 396 381 452 456 606 3 yr. : Avcrrtge CONCLUSIONS: Foscue seed yields were influenced more by tho total amount of nitrogen appliod th~n they were by the time of application of nitrogen. Sign- ificant increases were obtained at each incroased level of nitrogen but no differences were obtained within a given level due to splitting the applications bet\.Jeen M arch and September, E. H. Evans 57 Tc..ble 48 Tall Fescue Grazing Mnn'1gomont Tost - Blnck 1949-1950 ~olt Substation Type of Mc..nagemont Gain for llinter Grazing perioQ§ and boef gains : Gain for total period-Lb,/Acro : p~riod Lb.lAcre 11-29-49 to 3-27-50 11-29-49 to 9-23-50 Deferred Grazing 126 11-29-49 to 3-27-50 Continuous Grazing 88 10-3-49 to 9-23-50 312 Table 49 Tall Fescue - Nitrate Gr~zing Management Test - Black Belt Substation - 1950 - 1951 Plot No. I :Pcr Acre Grr'.zing :Nitrogen : Managemont : Tr£L1tmont Nono Deferred ,- , Grazing periods and boef gains in 1b I l2Qr acre : Entire 11 12-1-50 to 4-2-51 4-3-51 to 8-27-51 :Period Gra~ - 89.5 -122.5 -127.5 - 60 127.5 112.5 55 92.5 38 8 -83.5 75.5 II III IV 200 lb. NnJ.\T0 3 Continuous None Continuous 400 Lb. NaN03 Continuous liOn tho continuously grazed plots, the beef gains for the entir~ poriod include some gain prior to 12-1-50. Table 50 Tall Fescue - Nitrato Grazing Management Test Black Belt Substr'.tion 1951-1952 Plot No. I II III Por Aero Grazing nitrogen : Manageme nt Treatmont Hone 200 1bs. NnN03 None Continuous Deferred Deferred Deferred Grazing periods and boof gains Wint~r : Spring nnd Summer 180 127 130.5 108.5 . Entire . Sec.son 63.5 69.5 55 -116.5 - 57.5 -75.5 72.5 IV 400 lb. NaN0 3 181 , 'J > . " CONTINUED ON BACK 58A P~GE Tabl0 51 Performance of Some Individual Steors on the Tall Fescue - Nitrate Grazing Managenent Tpst - Black Belt Substation 1950-52 Plot No. I Steer Designation • • Weight Chango by Periods Pinter - 1950 Spring and Summer 1951 +110 +-135 No. 1 -r110 + 115 4- Entire Se ''. 8 on t- 183 + 18 Ronn Red 2 63 i>Jinter only 64 27 00 1 t- 73 -117 II - 60 -185 -150 -105 - 25 - 95 -+ 50 -70 -120 - 25 + 15 +50 III IV 30 + 80 + 40 -+-145 . Winter - 1951 I II Spring & Summer 195'2 ,.. 200 t 160 -+ Entire <"lonson 1 16 3 22 9 30 36 8 -113 -120 - 30 - 85 - 73 - 78 --i 113 + 87 440 +-102 -t 37 t-t- 132 -r122 138 123 ~ III IV -t "f 65 45 + 32 98 +-119 +130 ' . . . 232 COMMENTS An oight-ncro fexc~o-~hito Clover pa sture ( 2 yo ars from ost nblishrnont) ~ns subdividod into two grazing plots Qnd stocked with f airly uniform stoors The objective of the tost nt this timo (1949-50) w ghing f'L round 1,000 pounds. oi 'III ':'.S to rrot somo infermntion on gr nzinp mnnngomont for foscuo as "', winter r'rc_zing Thero ~as crop. considerable ~hite clover with tho foxcue during this trial ~d tho winter wns mild. Gross results for the period are presented in Tabl? 1. Tho sovero oarly-fA freeze in 1950 killed tho grass back nod practically ll oliminated the ~hite clover. The pastur~s which had boon divided again to make Tho four 2-acro plots woro being us ed for a nitrato- p,razing manngomont study. purpose of nitrnting w to stimulate growth of tho grass so it would r,o into tho as wintor with onoug" accumulated r rowth to l ast through the poriods when no new growth n~ild be mnde. A hout tho time the grass hnd r~coverod from the hard fr o o~e in tho f ~ll nnother sovero freezo (this time in February) killod it bnck ['.gcin. Noedless to Sf'-Y, r osults for this period 'Wero not vory f avornble (soo tnhlo 2). ThQ poor rosults (tnblo 3) for tho third ye ar from tho forage prodoction ( ~:: T I:.: • • IiI"aiiiUI~_.........."",,--_________~C ON:..:.:NUED ON NEXT PAGE) S~Qn~~~int ~an be attributed lar&ely to drouth. The summer pastures during this poriod .lOro so poor h.".y. tht~t th<_ hny meadows woro utilizod for gr,1zing rr.thc r thn.n for ' occurronce~.t This is'Cn unusur.l this locntion, The indi vidur'.l anim,".l performc"tnco on thi s to st ( tf'. bl0 4) wns v(. ry orratic ....nd ospcci'1lly so ' during tho 1950-51 period. Some of tho stoors, evon though n.ll .lero apparently qui tci uniform, wero able to make much bettor use of th0 grazing thnn were othors. E. M. Evans Theron.son for this differonco is not claar. . :. 59 Tabla 52 THE EFFECT OF ORGANIC MATTER ON THE GROWTH AND ON THE DISEASES OF RUNN PEANUTS AND BLUE LUPINE ER Wiregrass - Tier 30 - 1947-51 • Plot No. 1/; Yield of Peanuts Pound I2er Acre Treatment-#/iJ/ 1947 1614 1189 1169 1948 2113 2011 1931 2175 599 c 1949 1597 1144 1035 1640 322 1950 :1951 :1947-51 : Ave. 1 2 3 4 5 25000# Manure 450# Super 900# Super 250# Muriate 900# Super 250# Muriate 1535 326 584 723 206 142 1437 1027 1000 1367 387 12000# Oat straw 1562 777# §uI2er. 89# Muriate None 1231 226 70 119 823 1/ g/ All plots have lupines and peanuts grown on it each year except plot three which has only peanuts. Plots 1, 2, 3, and 4 have the same amount of P and K. Plots 1 and 4 have the same amounts of organic matter. Manure to be applied when lupines are turned. Oat straw to be applied in the fallon the lupines as a mulch. Superphosphate and muriate to be broadcast on plots 10 days to 2 weeks before planting. A marke d response in yield was obtained from superphosphate and The yields were further increased with the application of manure The manure application was only slightly superior to the ·SUMMARY: potash. or oat straw. oat straw application. Fred Adams 60 T"'.1)l o 53 ORGANIC MATTER AND FERTILIZER TEST with Poanuts Dug, POllnuts Hogged and Corn in a 3 Year Rotation Wiregrass ltJ42-51 Tier 31 CROPPING: Corn, peanuts hogged, peanuts dug, oats for green manure crop •• ~ The area was in dug peanuts without fertilizer from 1936 to 1941 inclusive. PAST HISTORY: Yj.e1d - 10 ;year Averages - 1,2.46-51. Plot #:Ferti1izer & Rate per/A: Peanuts Hogged: Peanuts Dug: Shelled Corn : Pounds per a~: Pounds! A : Bu. per Acre 1 2 2 3 4 5 6 7 8 9 0 300/1 0-8-12 300/1 0-8-12 802 1013 1155 1339 1232 1473 1595 1142 1562 138;Y 4.7 8.5 10.0 6.0 14.6 16.0 5.8 14.8 J/ 1027 1417 1196 0 300/1 0-8-12 * 1530 1574 1028 1587 300# 3-8-12 0 300# 0-8-12 300# 3-8-12 130~/ / 17.72 1/ ~/ One ton of lime per acre in 1942. Z/ A three year average as plot 9 was added in 1949. No oats on plot 2. Oats received 168 1bs/acre of sodium nitrate annually. The growth of oats was so small that no yield data were taken. SUMMARY: of 0-8-12 of corn. There was The corn yield average was low, but the application of 300 Ibs/acre or 3-8-12 more than doubled the y~eld. Lime had no effect on yield Peanut yields were increased by the addition of 0-8-12 or 3-8-12. a small, but doubtful, response to lime. * Fred Adams 61 Table54 Yields of seed cotton in pounds per acre from acidity and availability of ~hosphorus experiment at Tennessee Valley Substation. ; TreatmentsUUnJiWd : Limed Treatment: iSource of: INe.: l.ve.: !.ve.: Avc.2:.t}. llve. 1, -;~ve ~: live. : Lve. No.:Source of phosphorus :nitrogen :1930-35:1936-40:1941-45:1930-45:1930-35 :1936-40:1941-45:1930-45 1 Check NaN03 1300 1376 1388 1351 1772 1827 1827 1807 2 Monosodium phose NaNO) 1611 1886 1729 331 2223 2293 2172 332 3 Honocalcium phose NaN03 1679 1948 1805 360 2261 2286 2270 397 Decalcium phose NaN03 1660 1934 .1863 371 2199 2151 2150 243 4 5 CheCk NaN03 1362 1550 17391539 1924 1911 1989 1940 6 Tricalcium ~os. NaND3 1751 1954 1948435 2071 2066 2044 147 NaN03 1792 1985 1~ 511 2259 2266 2172 318 7 . Superphos. NaN03 1720 1977 1922 463 2223 2244 2186 376 8 . Honorumnonium phose 9 Check NaN0 3 1339 1389 1590 1433 1719 1712 1881 1767 Qheck NaNO 1313 1344 1444 1363 1518 '_ 633 1550 1563 9 x 10 H onosodium Phos. (NH4 1813 1944 1811 369 2039 2031 1902 271 4 11 Monocalcium phose (NH4~4 1891 2100 1993 402 2069 2036 1989 290 12 Dicalcium phose (NH4~~ 1911 2215 2117 516 1946 1992 1963 196 13 Check NaNO 1538 1672 1857 1680 1874 1803 1819 1835 14 Trica1cium phose (NH452S04 1911 2035 431 1909 1945 1955 184 NH4) 2S04 1871 15 Superphos. ( 1931 1954 273 2080 2078 2055 248 16 l-1onoammonium phose (NH 4 )2S04 1796 1812 1809 359 2041 2064 1947 -< [365 17 Check NaN03 1376 1287 1458 1374 1570 1577 1587 1578 : : - 6-yr. : 5-yr. : 5-yr.: 1(;:n;,: 6-yr.: 5-yr. : 5-yr •.: 16-yr • 1ro 20~ t.verage of checks 1371 1436 1579 1457 1729 17L:_4 1776 1748 JJ y :~11 plots received 36(,1 and 24t~l potash. Increased Yi~lids over calculated checks, for phosphate treatments Limed tier received 75l! mar ) le dust in 1931. CONCLUSIONS: . Lime increased yield of checks by about 300# seed cotton. Lime decreased the nvai1nbi1it~ of dicn1cium phosphate and tricalcium phosphate. Tho srure test was conducted at the Piregrass Substation and r e sults have been published in Agronomy Journal L. E. : : ;nsminger .., Table 5.5 ' Responso ' of Cotton to Rates of Concentrated Superphosphate and to Various Nitric Phosphates at 5 Locations ,- TreatmentlJ : No.: Kind 1 2 3 4 ~~K ----- ~ ' --~~Yield of seed c6tteu;t5 locations - pounds perlA -; : Rachel's : Tuskegee :1100dy : Average :lbs. per : Farm :Exp.. Field :Tra1il.dt Farm :Haddock Farm : Farm , : 9 location; :Acre P20t;n__ :~1.9_53 : 1954 : 1953 : 1954 1953: 1954 : 1953 1954 1954: years NK 5 6 7 8 9 10 NPK NPK NPK 14-14-14 11-11-11 15-15-15 (L.~r~ Sol. p) 15-15-15 (H.". Sol. p) 14-11-11 L. S. D. 5% 0 24 48 72 72 24 24 24 24 24 477 787 835 778 832 533 711 774 697 705 164 0 396 1186 1112 1271 911 916 896 1148 999 1094 259 1530 1719 1710 1710 1629 1624 1480 1710 1656 1732 747 909 909 932 914 950 788 963 873 891 N .S. 1515 1632 1518 1608 1582 1443 15e4 1494 1500 1468 N.S. 1143 1228 1375 1346 1235 1220 1136 1181 1123 1213 N.S. 6 929 986 932 950 777 887 970 lID17 911 880 7 9 N 916 889 893 1044 774 929 817 860 803 1019 1190 1328 1233 1339 1238 1109 1262 1068 1276 948 1173 1179 1191 1140 1065 1ID6$ 1152 10'76 1118 <""'I -.0 ppm soluble S 0-6 11 6-12 11 12-18" pPm P - Truog ppm P - Bray No. 1 f>fJm P - NaHC03 5 2 4 3 3 115 8 11 9 5 2 90 100 13 9 8 0 M!, 57 13 22 8 3 3 4 1/ Soil Type Kalmia fs1 Bosl-Jell fsl Norfolk sl Cookville sLl Dewey sLI. A+l treatments except No. 5 received sufficient CaS04 to bring the applied S to 32 pounds per acro. Treatment No. 5 did not recoive any sulfate. Conclusions: Thore was a significant response to sulfate at the Rachel Farm the socond year. Thoro was a tendency for the nitric phosphates to produce less cotton than an equivalent amount of P205 from CSP. L. -r::. Ensminger Influence of Rates of Phosphorusnnd Potash on Yields of Corn Table 56 • . : Fertilized with 80 Pounds of Nitrogen - 9 locations Average Yie~ of Corn ;n bu§nQ~~r~e :Alico-: :Honroo-:Fratt-:Tusk-:Gulf ~Sazid:Pied-: Fortilizor:Alexandria:vil1t'Y : Bro\.Jton:villo :vil1e fcgcO :Coast:Mt. :mont tAvg.1J& lOI)O#/A : 1147-51 :4?!""54t 4~1 t 47-50 :47..51 :47..51·s47';54:47..54.t'~7-5;l':-loeations "! . '1 -- g-o-6 8-2·.6 8-/~-6 52.8 53.3 57.4 .. 54.3 57.6 55.0 55.0 54.3 38:,0 40.7 39.9 40.1 41.8 40.9 36.9 41.4 413.6 55.0 54.0 55.3 55.6 54.0 50.2 54.3 53.9 53.4 54.0 53.4 52.2 51.0 52.0 53.4 41.9 48.1 51.4 53.0 53,2 51.2 49.1' 27.2 58.9 65.9 49.4 32.5 62.2 68.947.9 33.9 63.0 69.7 1l7.3 33.3 63.2 68.0 44.9 31.9 66.2 68.3 45.7 32.8 61.1 69.4 51.9 30.4 57.6 65.5 54.5 36.1 65.7 69.2 52.8 64.5 49.4 52.3 53.1 52.6 53.6 52.8 50.7 54.3 8-6-6 n ' 0 -b-4 8~r'3,...2 8-6-0 e--H~ · 8 52.8 8-::'.2-6 AVOrtlgo 55.f) M.O 53.3 52.9 50.2 32.3 62.5 68.1 49.3 52.4 1/ He ight-od ~vorage CONCLUSIONS: t.t most of tho locations corn sbo ..!Or'l. lit tle or no response to phosphorus or potash. lJhoro somo response to phosphorus' lW .1A obtain. d tho first 20# increment sntisf1ed ' a most of roquirement. minorr.ls to corn. L. E. Ensminger Those data substantiate our prosent recommendations for T0.blc 57 Treatmentli . Response of Cotton to Various Phosphate Fertilizers and to Sulfate at 11 Loce.tions Yields of seed cotton-~ounds ~er acre : AlexAlive:C8.:,pen~· MonroeFrazer :andria ville Hall :Pebpl~~~Jackson: ville :Brewton:Waters :Peop1es :ter Field Field • Farm Farm" : Farm: Farm: Field : Field : Farm Fa~: Farm : 1951-53 : 1951-53 1951-53 : 1951-5~:1951-52:1951-53:1951-54 1951 :1951-53 :1951-54: 1951 · · · . . . . . . · · : · · . Sears :Average 31 FllIl'J!l . :location yea:rs 195~ 99'7 99'7 U50 1008 9'72 783 968 1017 4 925 1067 1241 1001 1162 1163 1130 1204 $ ~ 1308 1398 1442 1367 1597 1416 1286 1500 1098 1089 1013 935 1080 1081 1+52 1141 8 1421 1576 1648 1510 1567 1558 1556 1634 13 962 1151 1420 993 1149 1244 1164 1326 9 0 670 863 8'13 797 870 1008 8'11 863 11 1191 1229 1321 1230 1374 · 1234 ]277 :IZ59 554 593 1017 645 902 968 8'11 912 15 0 34 41 608 793 967 671 833 862 906 954 II 769 ll23 1451 1024 1239 1300 12)8 1336 7 0 40 52 374 693 711 554 722 799 691 950 II 1043 1020 ll33 1020 1163 1020 1155 998 6 PKY ~12-12 4-14-14 (S free) 1-11-11 -9-9 -7-7 (25% VI .8. P20 5 ~7-7 (63% W. S. P 0 ) 2 5 Truog soluble P )pn 24 9 >pm S in 0-6" 6-12" 12-18" 11 brpe ° 47 Decatur c1 .. 0 ° 0 Z7 0 0 15 ° 0 47 Stough vfsl Greenville Kalmia Boswell Magnolia l-1agno1ia Kalmia fs1 sl vfsl fsl fsl fsl Kalmia Boswell Decatur vfsl cl fsl Norfolk Is e~ved 32 pounds S as CaS04 ~ertilizers applied at base rate of 48 pounds each of N, P205' and K O. 2 L.. E. Ensminger Residual Effects of Phosphates as Measured Qy Crop Yields in a Rotation of Corn and Cotton "With Finter Legumes :1'2 05 Applied : Yields of Check Plots and Increased Yields :to Cotton and: During Residual Period. Averages 12~6-49 :to Hinter :TennesseeVa11el Substa.tion'-: Prattv.i11e Field : ~egrass Substation :LeguIOOs Green Wt. : Seed • : Green Wt.: Seed : : Green 1>ft.: Seed : Sources of Phosphorus:1220_4~ : V~tch :Cotton : Corn : Vetch :Cotton: Corn : LUEines :CottoD: Corn Lb. Lb. Lb. Lb. Lb. Bu. B"u. Lb. Lb. Bu. Check 0 2167 803 31.2 6950 1155 51.1 16096 631 33.3 Basic Slag 48 7628 27.3 180 457 7284 382 -701 5~6 6~3 Superphosphate 48 4804 325 18.8 5806 91 1137 137 5.2 6~3 Rock Phosphate 48 2578 128 9.7 1011 5~0 124 4541 54 4~2 Check 0 5840 10>81 1211 51'~7 4:3.1 7537 14102 441 2.311 Rock Phosphate 96 3496 10.5 7361 249 215 96 5~9 1426 4. 2 Colloidal Phosphate 48 3179 . 145 172 7384 160 9.4 551 5.2 4.1 Ppt. Trica1.Phos. 48 3644 201 160 13.8 8133 220 6.7 5.7 933 Check 0 ·3485 1080 37.6 6569 1169 49~9 301 19.2 14369 Triple ~perph6s. 48 3018 188 12.0 67 4703 7~4 4.8 -247 95 Ammo-Phos. A 48 3287 265 14.4 1331 -370 3~3 1~3 -~72. -56 Superphosphate!! 24 6224 . 8.5 13.2 6278 82 244--.265 206 5~3 Check 0 1129 4424 40.7 8631 1209 49.3 14467 468 25.9 SuperphosPhat~ 48 4526 242 26 .. 5 5527 65 221 8.8 295 3.2 Superphosphat 2 24 6235 329 8766 24.3 180 8.5 352 5.6 -940 Superphosphate 24 2117 255 16.7 60 4073 5.3 183 -1564 3.9 Check 0 1674 771 24.0 7475 1217 50.6 603 30.1 15834 Table 58 . . g/ ll~In addition to Superphosphate; rock phosphate applied at rate of 2000 pounds per acre in 1930, 1936 and 19~. In addition to Superphosphate, basic slag applied at rate of 2000 pounds. per acre in 1930, 1936 and 19L~. Conclusions: All phosphates except ammophos. sho-wed appraciable residual effects as indicated by vetch and cotton ....... ~asic slag sh~"Wed the h~ghest residua~ effe?t of any of the ~hosphate~. For a particu1a: phosphate Dba.. effects "Were ln proportlon to the amount "WInch had been app11ed. Resldual effects of trlple ",,,no.,.nhnR . Vere not as great as for an equal amount of P2 05 from ordinary superphosphate. L. . E. EnSminger To.b1e 59P. Residual Effects of Superphosphate as Measured By Yields of Cotton at the Sand Mountain Substation, Tier 24 P20, AEE1ied ~nnua11Z Treatment No: 1930-34 : 1935-55 lb. lb. : . .. Yields of Seed Cotton per ~cre 1930-34:1935-39:1940-44:1945-49:1940-55 lb. lb. lb. lb. lb. / 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ·15 16 17 0 30 60 90 0 120 0 30 0 60 90 120 0 0 JBO 60 0 0 0 0 0 0 0 30 30 0 30 30 30 0 60 60 60 0 1031 1323 1.437 1473 1022 1483 1029 1386 895 1346 1463 1445 1015 1077 1334 1445 1015 741 1097 1192 1294 835 1299 1300 1405 820 1338 1424 1418 798 1391 1356 1409 719 383 707 999 1160 535 1185 1323 1386 500 1334 1408 1343 483 1436 1378 1473 521 253 417 706 870 268 1120 1451 . 1515 203 1446 1476 1420 315 1560 1452 ib6l0 497 445 559 763 850 460 1083 1370 1388 549 1358 1406 1396 60~ 1458 1408 1424 725 Note: From 1930-44 all plots received 36# N and 24f/ K20 per acre. From 1945-54 all plots received L:.811 each of I,! and K 0. In 1955 all plots received 72# Nand 2 6Q~ K 0.' Plots \lore limed at rate of 1500# in 1948 and agein in 1955. 2 COECLUSIONS: Residual effects of various rates of superphosphate added 1930-a4 were appreciable first 5 years of residual period. Residual effects have decreased with time but still evident after 20 years. Test was completely revised beginning in 1956. Tab1.659B " 'Rcsidua1 Effects of Superphosphate as ¥easured " By Yi elds of Cotton at the Sand Mountain Substation Tier, 25 No.: P2 0 S ~tment Yields Seed CottonfL Laalied Annual1l : 1930...34 :1930-34:1935-39:1940-44:1945-49:1950-55 1935-55 lb. lb. lb. lb. lb. lb. lb. 0 90 120 0 0 30 60 90 0 120 0 0 60 90 :£20 0 0 60 60 90 0 90 90 90 0 90 120 120 0 120 120 120 0 799 1403 1496 653 736 1249 1310 1393 646 1366 677 1341 738 1403 1488 1459 696 624 1448 1476 1395 517 1455 1425 1487 461 1472 1479 1522 580 1540 1529 1508 648 299 1422 1430 1453 238 1454 1419 1478 304 1480 1512 1519 361 1558 1556 1526 359 216 1312 1354 1387 236 1456 1484 1520 275 1520 1556 1575 310 1587 1593 1583 244 506 1412 1445 1430 704 1442 1440 1448 806 1441 1477 1428 844 1451 1426 1354 590 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 SO Note: From 1930-44 all plots received 36# ~ and ~4# X20 per aero. From 1945-54 all plots received 4BiJ. each of Nand K20. In 1955 all plots received 72# Nand 60 K20. Plots limed at rate of 1500# in 1948 and again in 1955. L. E. Ensfuinger 67 Table 60 Sources of Phosphorus Check Basic Slag Superphos. Rock Phos Check Rock Phos Colloidal Plios. Ppt. Trical.Phos. Check Triple Superphos. Amino. PhoSyA Superphos. Check Superphos ~ y Superphos~2 0 48 48 48 0 48 48 48 48 0 96 883 372 280 119 1090 230 209 219 1036 196 ·266 1169 231 332 174 878 36.8 6.1 4.9 ·' 2.1 1.8 2.2 ··0.6 43.4 0.6 1.0 . 2.5 41.9 1U.9 653 438 4Z7 281 913 418 27.2 6.6 6.3 4.0 36.7 5.8 , 24 0 224 Superphos. Check 48 24 24 0 2.5 4~9 5.8 35.4 417 435 832 406 474 360 509 - 7.4 3.2 33.2 4.1 5~9 6.1 22.7 7g1 571 484 294 926 285 155 312 904 171 -102 261 1011 438 517 378 730 28.0 7.9 6~9 2.6 30.1 4.9 3.7 4.9 28.6 5~3 5.8 3.5 30.'ia 5.3 6.9 7.4 26.2 574 249 133 58 499 133 99, , 169 462 29 -223 13G 541 215 256 104 437 21;1 2.8 0~3 " 4fY7 331 4~6 5.8 -0.2 20.7 2.3 , 3.5 3.6 16.6 2.6 -0.2 1.3 21.0 1.3 2.2 -0~7 188 < 2.1 3.7 266 89 264 322 395 254 3.5 2.6 3.3 5.0 4.6 I 21.6 ~ ~ In add~t~on to superphosphat e, rock phosphate applied at rate of 2000 pounds per acr~ in 1930, 1936 and 1942. In add1t1on to superphosphate, basic slag applied at rate of 2000 pounds per acr e in 1930, 1936 and 1942. All phosphates showed appreciable residual effects as indicated by cotton yields~ vlhen the It phosphates '-Jere applied at 48# P20,6 per acre, basic slag produced the most cotton during the . reslizdual period while ~onium phose produced the least ontthe average. The low yields from Ammonium phOSe applied to sandy soils are pbobab1y due to residual acidity from the m aterial. The residual effect of a particular phosphate were in proportion to amount which had been applied. L. E. Ensminger ' Conclusions: Table 61 Yields of white clover from uniform rock phosphate test conducted at two locations in Alabama • Yields of dry matter pe.racre Lime per Treatments Acre :Frequency:m:eEia.m fine ': Boswell f i n e :P205 per acre applied : -+:of apply-: sandy loam : §andy loam : \. ' CSP Rock phos.:ing phos.:-r~: 1954 : 1953 : 1954 ----,lb. lb. lb. lb. lb. lb. lb. 2000 0 3811 1747 1102 0 ,32"47 . 2000 2000 2000 2000 2000 2000 2000 2000 2000 0 0 0 0 300 30 60 120 180 75 150 60 0 300 600 0 0 0 0 0 300 300 0 600 1st yr.only~3777 4670 1973 5147 5286 2032 2582 1422 926 1491 1217 1081 1447 1207 1:289 1226 1387 130.6 1st yr.orily, 4175 1st yr.only 45gg Annually Annually Annually Annually ,-40?!7 / 4365 '4500 5351 1926 5617 5832 2236 2417 ,4'366 5992 2718 5244 2286 5371 2306 1st yr. onlY /41'tJ7 1st yr. only ,4400 Annually 4317 4646 1993 4769 2931 1st yr. onlY '409'8 CONCLUSIONS: On limed plots cihover responded to rock phosphate but i t took only about a tenth On the Wickham fsl, lime had However, on the Boswell as much P2 0 5 from CSP to give the same response. little 'effect on response of clover to rock phosphate. fsl, the 1953 yields sho,,1 that lime reduced the availability of rock phosphate. L. E. Ensminger 69 Ta.b1e 62 Responso of Cotton to lime an,! phosphorus in varying amounts at Hiregrnss IBrld Tonnesseo Valley Substations. Fcrtilizor:Lime • :lb./..\ :.\vg. 3/:-'2.7 No. :per acre :per 10 yrs.: •• P1ot:6001,~ . . T. V.: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 6-10-4 6-0-4 6-0-4 6-2-4 6-10-4 6-2-4 6-2-4 6-4-4 6-10-4 6-4-4 6-4-4 6-6-4 6-10-4 6-6-4 6-8-4 6-8-4 6~10-4 W · · v.:· :T. • · :AvfI.. I l8-~1 W :T. V.: · · ." • :AvfI.. . ~2-!ds :AvfI..~~-M ' :: . : " ~ " W · .. .... · V.: :T. tA'fTg ~ :346,44. :Al1 · W :Loc. 0 2106 0 2106 0 0 210t,Y' 1260 1102 1091 1200 1346 1230 1270 1259 1357 1292 1295 1299 1281 1227 1268 1257 1317 1368 1293 1328 1356 1440 1405 1365 1420 1324 1412 1444 1458 1456 1385 1425 1432 1428 1789 1286 1363 1482 1480 :p69 1424 1352 1104 1200 1277 122g 1219 1220 1250 1072 1119 1187 1156 1195 1176 1663 1136 1327 1342 1363 1272 1318 1880 1218 1489 1424 1580 1355 1468 1612 1100 1324 1216 1395 1242 1318 1663 1157 1275 1333 1414 1280 1347 1686 1128 1342 1385 1437 1304 1371 1843 1057 1468 1319 1565 1226 1.395 1683 1123 1393 1330 1461 1285 1.373 1728 1254 1382 1387 1476 13 59 1418 1739 1282 1367 1395 1479 1376 1427 1842 1232 1381 1401 1512 1359 ·1436 1749 1123 1358 1362 1452 128;3 1368 1800 1202 1419 1464 1502 1355 1428 1808 1282 1492 1411 1521 1373 1447 1916 1229 1498 1390 1585 1345 1465 2106 0 0 21061/ 2106 0 ·0 2106 0 0 11 Lime applied to plots 7 and 11 once each 10 years. Applied in 1934 broadcast. None applied in 1944. .'.11 other lime plots receive 211# lime per year which equals 2106# total in 10 yrs. .T his limo is applied in drill with fertilizer. CONCLUSIONS: /" ~o Response to phosphorus at T. V. was in order of 4~0# seed cotton. The respcnse phosphorus at Wiregrass was only about 200#. Lime had little or no effect on yields. L. E. Ensminger 70 Table 63 Yields of Seed Cotton Produced by Various ~osphates with and without Lime Treatments :Nitrogen . Source .of j:)h,osPhorus: Source Superphosphate (NH4) 2S04 Superphosphate NH4N03 A~oniated Super. NH4N0:3 Monoammonium Phos. NH 4NO Diarnrnonium Phos ~ NH NO) 43 Diammonium Phos~ NaN0 3 Diammonium P hos~ Urea . Diarnmonium Phose (Gypsum) NHI, N O Dicalcium Phose . l\lJi N() 3 4 Tricalcium Phos.lI :t.JH N0 3 4 Rock Phosphatell NH4NO~ Diammonitun Phos.Y NH H0 4 3 .~ . ...Lime lb. 212 101 101 1~4 Un l iw03tff Li med k:8r age of: 3 l o ~ations : HirQ[?'J :ass : lb. lb. 1298 998 1011 1373 919 1341 1218 707 1121 876 870 1289 1165 889 lInOO 1356 1253 ge~L, 1160 747 1021 639 681 996 Te nn ~ _'l.:.,~lq _ ~_: Mt : 139 82 139 139 60 101 0 69 v Jiregrass lb. 979 1030 lID20 823 610 906 811 1633 885 755 612 537 Tenl).~ lb. 1562 1611 1555 1417 1518 1513 1395 1546 1464 1413 1268 926 v. Se nd Mt " lb. 1354 1393 1368 1314 IlG8 1352 1201 1407 1319 1211 1082 544 lb. 1714 2018 1775 1445 1634 1542 1535 1616 1532 1102 922 1928 lb. 1387 1350 1359 1210 1306 1273 1227 1399 1349 894 631 1411 : Aver age of 3 lQ... at i oJ,1.s Q lb. 1366 1500 1390 . 1176 1398 1261 1247 13~9 1294 914 731 1486 ~ r-- rl 1/ No phosphorus applied to limed tier. . ~/ No phOSphorus applied to unlimed tier. Conclusions: Diatlh'1lonium phosphate without lime was not a satisfactory material for sandy soils lJ hen used \-li th (NH4) 2S04. r esponse to gypsum without lime at v]iregrass and Sand Hountain Substationa. There was a L. E. Ensminger T ~blc 64. Rates of Potash. :Co~ Cct.t.~t'.. - 1.11 '!t~'Q.~ o..~~"t":'Q.~ Y~1!'J1.~ ~i: ~ Ct:1'ti'LO'n Where Various Amounts of Potash were Used, 1930-J9 Sand Mountain, Tennessee Valley, Wiregrass, Aliceville Continuous Cotton P1~t Fertilizer Y 6-10-0 Pounds NOt A(Jre. 600 600 600 600 600 per Mountain 1041 1328 1349 134S 1074 139~ Sand n~~ ~eg CgttgQ 12sr ~~- ~~s. Tennessee Wire- Alice~ Valley 1585 1658 1576 1549 14.36 1457 1165 1162 1307 grass ville 978 1115 1142 1266 692 1.278 A~rage 1 1243 1371 1424 1212 1368 1373 Z 3 6-10-2 6-1Q-4 6-10-8 6-10-0 6-10-16 6-10-2 4 l:; ,/ 146.3 1138 140!j 14m 1085 1384- ,0 60d 30lJ 300 ,.. { 1023 999 1050 1135 1074 1361 1129 1330 1267 1.340 1146 1059 1078 1168 1118 1122 1385 1150 1435 1.345 1379 ll44 B81 925 1032 1041 10M. llC8 1110 1347 1122 1.36.3 1.3C9 1.351 1194 S 6-10-:-4 6-10-0 9 600 )'00 650 989 992 1146 705 1113 lC 11 1.2 6-10-8 6-10-16 1190 1.250 1495 300 6...10-16 6-10-0 6-10-32 41 ~ 600 600 600 600 600 600 13 1504 1572 14 15 16 17 6-10-4 Ammonium Sulfate 6-10-4 Ammonium 6-10-0 1590 16.39 1615 1034 1047 870 Sulfate~ ~ NUtrients . &16). All minerals and 1/4 of the nitrogen applied before planting cotton. from superphosphate, muriate of potash, and nitrate of soda (except 15 Three-fourths of the nitrogen applied as a sidedressing. Beginning 19.37 at Sand Mountain all fertilizer applied before planting. ;I Potash applied once in each 4 year period. ~ ~ 2no pounds of limestone in drill annually. 2-1ear average. Test started in 19.38. SUMMARY This test was conducted with IS and .36 pounds of nitrogen. At the 18 pound rate there was no appreciable response to 12, 24; and 48 pounds of K20 over 6 pounds of K~O per acre. At the 36 pound rate there was no response to potash at Tennessee Valley, response to 24 at Sand Mountain and 48 at Wiregrass and Aliceville. With higher nitrogen,. responses might have been different. 72 R. D. Rouse T.-:.blo 65 Rates of Potash in a Two Year Rotation of Cotton and Peanuts Wiregrass Substation (Tier 16) (1) Cottom 1947, 49, 51, and' 5) Peanuts 1948, 50, 52, and 54 Pl(lt Fertilizer No. 1 Z V Lbs/A 600 600 600 600 600 Ootton Pearnwt Yieid ' Yield 1947~9 1948~ New V Treatment 1951 CottQn Yield Pea~ 1951~ Yield 1952-54 6~~8 6~':::'2 J I{, ~ 6-8-8 6-8-8 6~8-4 6~8"'4 168 209 209 475 218 618 140 235 127 1789 2176 2456 2534 Z490 2395 2315 2286 2290 2119 2266 2172 2142 2132 2042 2534 2284 6 ,.. S 9 6-8-16 10 11 6-8-4 6-8-8 6-8-4 6-8-8 6-8-6 6-8-8 6~8-0 600 600 600 600 300 300 600 600 600 600 600 600 84- 280 250 206 163 1<::6 193 138 12 13 14 15 16 17 6~~4 6-8-4 6-8-4 same 640 Bame 214 same 428 same 950 360 11hs. 1.20 brnad':' l396 carl, 1571 same 742 same 636 same. 662 same 642 600 1bs. 6-8-4 + 60 1bs. $20 Sidedress 980 600 1bs. 6-8-8 + 60 1bs. K20 sidedress 1250 600 1bs. 6-8-16 + '. 60 lbs. K20 sidedress 360 1bs. K20 broad1495 cast + minor element mixtures 132 same 313 same 370 same same 504 20z8 2OJO 1857 1794 1515 165' 1604 1714 1948 1570 1436 1642 1705 1840 1229 1908 2011 1/'This is on same area that was in rate of potash test continuous cotton 1930-39 and two year rotation cotton and peanuts from 1940-47. In 1947 plots 1,5,9,13, & 17 began receiving 48 lbs. of K20 to cotton. y ~itrogen from urea on all plots except 7 and 8 which get nitrate of soda, and 15 and 16 which get ammonium sulfate. Acidity of urea and ammonium sulfate corrected with dC~0mit~ on all plots except 8 and 15 which get no lime. Plot 7 gets same lime as ,on pIc ts on which urea was used. 31 ,~ All plets were limed at the rate of 1 ton dolomitic limestone per acre. Soil analysis showed very low calcium and pH values as well as potash. In addition to the lime ~~atments the additional potash treatments were made and peanuts began receiving 300 Ibs. of 0-12-20 except plot 14 which received 300 lbs. of 0-12-~). SUMMARY ~stton Yi~lds on all plots decline~ during the late 1940's in comparison with yield , in adjaeent exper1In.ents. This is indicated by a maximum yield of 618 pounds of seed ootton' for a two year average 1947-49. In the winter of 1950 soil samples were collected and all plots had .extremely low pH' TcUues, low exchangeable ealeium, and low potass11llJ1' even in the plots receiving 'biannual applieations of 96 lbs. of K20. All plots ,,;arIZ! limed and all plots except, one began receiving 60 1bs. of K20 to peanuts and cer-r,e.in plots received additional potash. The lime in comparison with previous .. yields and adjacent experiments appeared to increase the yield of. cotton on all plots. High rates of potash broadcast practically corrected extreme deficiencr,y in one application. Minor elements were without appreciable· effect. Yields were not affected by potash treatment to cotton but one ton of lime was insufficient to bring ' the yield of peanuts up on the unneutralized ammoniunr, sulf"ate plots. .' ~aanut R.D. Rouse 73 Tnble 66 Two Year Rotation of Cotton & Dug Peanuts Four lear Average Cotton and Peanuts (1951-54) Wiregrass Substation (Tier 17 & 18) Plot No. ~ Treatment # Peanuts/A. 1343 1421 1264 1360 1244 1261 1244 1234 1392 1343 1378 1358 1065 1336 1309 1314 1276 Tr-eatment?t7/' 4-10-7 .. 4-l0-7 4-10-7 .. 4-10~7 # Cotton/A. 1165 1179 1392 1256 1240 ll37 1157 1179 1004 1378 1090 1314 1129 1486 1232 1399 2 ) 4 5 6 7 8 9 10 11 12 15 16 17 13 14 400 300 400 0-12-20~ 500 0-12-20 '! 400 0-12-Zgv .3'00 0-12-2 400 0-12::-20ij' ~OO 0-12"'2~ 400 0-12-2 ,3'00 0-12-2~ 400 0-12-2 n0 0-12-20 0-12-20 0-12-20 4~10~:-7fj- . 600 4_10_71 . 600 4-10~7 4-10~~ ~oo 600 4...10-7v. iI V 600 600 600 600 600 1423 oil 0-12-20i=~00 0-12-20Ja-~OO 0-12-20!: 0-12-20-~OO 0-12-20~1A~ 400 4-10-7 4-10-7 4-10-7 Jj 4-10-7V 4-10-7 4-10-7tf! 4-10-71 4-10-7V 600 6~0 600 600 600 600 600 600 11 1 .. ton of lime per acre applied to these plots and worked in. To be repeated everT 6 years. y ~ .. .. 10011 of 60/0 muriate of potash applied as sidedressing to plot 17 as s'con as peanuts' are breaking ground. 500# of gypsum/A applied broadcast on these plots on peanut foliage over pegging zone at early blooming stage. per acre of 200/1 nitrate of soda sidedressed at chopping. of 4! Had an additional 100# ammoniuw nitrate 21 100# 60% muriate of potash per acre side-dressed to these plots at chopping. Peanut Yields have not been affected by fertilizer treatment but there is an indication that yields were slightly reduced by 1tme. Cotton. 1lie1dS' appears to be slightly better where peanuts received 400 or 500 poundS' of 0-12-20 than those where peanuts received 300 pounds of 0-12-20. The most marked increase resulted from potassiUm side-dressing. R. D. Rouse 74 TQblo 67 Effect of Rates of Application of Potassium on Yield of Cotton following Six Wears of Alfalfa. Tennessee Valley Substation Treatment Y 1950 "ld 3 Y (Lbs. of Seed Cotton/A) 1949 1380 1525 1948 172'0 16$5 1$48 .. 1870 in leaf %K 1950 6-8-0 6-8-4 6-8-8 6-8-20 6-8-40 845 1395* 4/ 1400* 71 Y 2135* 71 1850* 0.75 0.98 ¥ 1460* Q/lJ 0.96 ~ 600 fl ~ -/ " 71 LI ~ / pounds per acre. Average of 3 replicates except last tH0 1 \.hich ar c sinG'lo plott3. No insect control measures were practiced in 1950. L.S.D. (5%) = 376 pounds of seed cotton per acre 1950 for potash treatment. L.S.D. (5%) = 261 pounds of seed cotton per acre 1949 for potash treatment. 3-8-12 This treatment was changed from 6-8~. Only plots not showing K deficiency symptoms either in folage or ease of picking. SUMMARY Potassium deficiency symptoms on cotton following six years of alfalfa (that received about 200 pounds of K20 in the six years) were corrected only by very high rates of potash. Rates of 120 lbs. repeated the second year or a single application of 240 lbs. of K20 gave correction as measured by yield, potash content of leaves, picking quality, and deficiency symptoms. It appears when the exchangeable potassium. in Decatur clay loam is cropped down to 200 lbs. K20 per acre with alfalfa, severe deficiency exists. This was brought out in experiments conducted on C.. C., King's farm in 1953' and 1955 (See annual reports). R. D. Rouse 75 " '. Table 68 Rates of Potash i n a TWo Year Rotation of Cotton ~d Peanuts Four Tear Average .;, 1941, 43, 1;.5, 47 2 Crop of Cotton Yield of Seed Cotton per Acre - Lbs. Plot N o. 1 2 Fertilizer!! Lbs/A. 6':':S~0 Sand Tennessee Mountain V alley 'Wiregr ass Aliceville Average 6-8-2 3 4 5 6 7 B 6~8-4 9 10 II 12 13 14 15 16 17 6-S-8 6';'8-0 6-8-16 6-8-4 6-8-4 6-8- 0 6-8-4 6-8-8 6- 8-6 6':8-0 6-8-0 6-8':':4 6-8-4 6-8-4 600 600 600 600 600 600 600 600 600 300 300 600 600 600 600 600 600 555 1104 1499 1641 750 1579 1452 1415 664 1190 1269 1590 659 1451 939 1377 700 1594 1716 1634 1609 1500 1492 1367 1280 1290 1264 1344 1550 1568 1655 1551 1721 1590 304 657 991 1173 322 1208 908 983 332 800 1006 1100 287 1129 734 871 258 S08 1055 1228 1378 485 1476 1259 1224 378 909 1151 1242 478 1060 1107 1216 768 815 II33 133$ 1450 764 1439 1246 1226 666 1041 1192 1370 748 1324 1083' 1296 829 ~ y N from urea on all plots except 7 and B which get nitrate of soda, and 15 and 16 which get ammonium sulfate. Acidity of urea a1!ld ammonium sulfat e corrected with dolomit e on all plots except 8 and 15 which get no lime. Plot 7 gets same lime hich urea was used. as on plots on w Average on plots 1, 5, 9, 1.3', and 17 are three year averages 1941, 43, and 45. In 1 947 the s e plot s r e oe ived 6 00#· o£ 6- 8- 8; the r e£ore , 1947 i s not incl ud ed £or thes e check plots. Rates of Potash in a Two Year Rotation of Cotton And Peanuts. Four Year Average - 1940,. 42, 44 and 46. Crop of Peanuts . Plot N - o. 1 Fertilizer!! Lbs/A. Sand Mountaim Pounds of Peanuts 12er Acrre Te nnessee WireAl iceville Vall ey grass Average ., " 46 7 8 0 2 ~ 10 11 '" 12 13 6-8-4 6-8-8 0-0-10 300 300 600 14 15 16 17 1024 1224 1362 1404 1042 1491 1132 1169 1041 1310 1344 1332 938 1360 956 1307 1061 1551 1562 1563' 1476 1496 1503 1419 1342 1396 1363 1417 1577 1501 1590 1658 1560 1508 1490 1489 1577 1603 1453 1440 1363 1374 1462 1354 1344 1497 1388 1515 1400 1615 1514 1252 1277 1299 1466 1107 1466 1124 1210 1034 1206 1211 1464 1031 1332 1107 1212 1073 1329 1388 1450 1487 1274 1475 1260 1274 1233 1308 1329 1468 1214 1449 1280 1424 1289 All othe:rr !I Plots 10, 11, and 12 received the f ertilizer indicated in 1946 only. fertilizer appli ed to cotton as shown on cotton table. (Continued on 'back) 7611. Sm.:1MARY Cotton ]lelds appeared to be increased by the 96 pound increment of potash over 48 pounds, at Wiregrass and Aliceville. At Sand MOuntain 48 pounds was adequate and no yield response was obtained on the Tennessee Valley soil. Peanut Yields were increased as the rate of potash to cotton was increased up to 48 pounds of K20 and decreased by the applicntion of an unneutralized source o~ nitrogen (ammonium sulfate) to cotton at all locations except the Tennessee Vall$y wheT'e yields were not changed by treatment. R. D. Rouse Table 69 Effect of Potash and !1inor Elements on Alfalf8. Ha;,{ Yields -Aliceville 1946 Plot: Basic Slag: 60% l'furinte :Borax : Hill Pounds Por flcro No. Lbs./Acre : Lbs./l.crc : Lbs,./ll:lst Cutting:2ndCutting:3rd Cutting: 1 2 3 4 4000 4000 4000 40 00 4000 4000 4000 4000 4000 4000 4000 4000 200 400 400 200 400 400 200 400 400 200 400 400 30 30 3o!1 30 30 3(174 39138 4234 3@15 3930 3988 4350 3770 3872 4263 4176 4060 21319 3637 379.3 3254 34110 . 3271 30211 3062 .3062 2645 2'f'fi49 2958 269f 2140 2262 23134 2523 2227 1914 2210 11327 2001 1879 2036 Total 8590 9765 10289 9553 9933 94136 9292 9042 8761 8909 8804 9054 5 6 7, 8 3011 30 30 9 3&1 3(} 30 30Y 10 11 12 Fertilization: In additmon to the fertilizer applied in the beginning, the annual application of fertiliz er per aero is 1000# basic slag, 10~1 of 60% muriate of potash applied: to plots 1; 4, 7; 10, 2 ~nd 3 5 and 6 8 and 9 11 md J2 in February after tho first cutting after the second cutting after the third cutting CONCLUSIONS: No definite conclusions can be D. G. Sturkie IDc~de from the test. " ?? : . , '. Table 70 Corn After Kobe Lespedeza - Terrace 27 Alexandria Experiment Field, 1943 Objective: '.lfreatment: To determine fertilizer needs of corn following Kobe Lespedeza. Kobe was planted on this area in spring of 1941. Hay was harvested from the area in this year. In 1942, the lespedeza was allowed to grow un~il fall. In ear~ November, seed were saved with seed pan on mower (about 200# of uncleaned seed harvested per acre). straw was stacked in pasture to winter cattle. On November il, 1942, the land was hard bedded with 12" middle busteJr. All fertilizer was applied in drill Oy hand "and bedded on immediate~ before planting. Rows were opened with scooter and ~ohnBon wings and eorn was planted May 7. All plots were two-row plots, 7' x 311' or 1/20 of an acre. This same test was conducted on an adjacent area in 1942. and fertilizer treatments for both years are given ~elow& Plot No. Fertilizer ~reatments acre basis No fertilizer The yields BUshels of Corn per Aere Awrage 1942-43 194J 1942 1 27.1l 36.0 46.4 47.9 46.$ 30.2 22.5 31.2 44.7 45.9 45.3 18.1 24.7 33.6 45.5 46.9 46.0 24.1 2 3 300/1 of r-16~ 300# of elements O-16~16 4 300# of 0-1.6-16 + minor 300/1 of 6-16-16 + minor elements No fertilizer ; 6 Note: All plots J!8ceiving no potash showed potash deficiency. Table 71 Value of Side-dressing Corn with Potash Following Kobe Lespedeaz - Terrace 27 Objective: To determine the value of side-dressing corn with potash following kobe lespedeza. See Corn After Kobe Lespedeza test for management of lespedeza preeeding earn in this test. Corn was planted May 7. A poor stand came up 'and it was replanted May 19. Approximately 400#' of superphosphate per acre applied in drill before planting. The corn came up and grew off rather slowly. During latter part of June and first of July, a very marked potash deficiency began to show up. It was decided to side-dress the corn with Eotash. On July 8, the corn was side-dressed with approximately 100# of 60% muriate of potash per acre. A few rows through the field were left untreated. Yields from this test are given below: Corn, not side~dressed - - - - Corn, side-dressed with 100# potash per aare - - - - - 19.8 bu. per aere 25.6 'bu. per acre Four harvests of l/12C acre each were taken from each area to obtain yields. It is believed that if potash had been applied earlier a greater increase from its use would have been made o It may also have been possible to correct this deficiency by using a smaller application of potash. Soon after potash was applied the corn plants changed from their pota~h deficient color to a deep natural green color and picked up rapidly in their growth. This indicates the possibility of correcting potash deficiency in corn after the de~1cieney is apparent in the plant. 78 It. D. Rouse Tab2e 72 Errect or Lime and Potassium on Yield of Dixie Runner Poanutsl/ Treatment Ibs/A ~ " · · ,m . ~2R '1 , c Auburn I Alabana - J.220-12~'" 5 year 8vemg~ Yield of Pea~u~s pounds ~raer~: :~ :*j9!2 : : 19Z"3 . 7j~M : • 1748 2045 0 0 25 50 100 0 2890 1744 15.35 1826 1482 1395 159$ 1842 202$ 2734 .3028 .3225 2275 2725 2715 3318 2306 2041 38 ' 45 60 28 89 181 259 1.39 83 264 221 390 0 .3200 3199 3251 3217 3360 .3970 3628 .3485 .3621 .3583 3390 2709 .3113 2329 2321 2997 .3058 3403 1852 2$19 2940 3333 ° ° 2,000 2245 206.3 lS59 2,000 2,000 2,000 4,OCO 4,000 4,000 4,000 25 50 100 0 25 50 100 2172 2369 245$ 1834 2281 2227 2392 180O 14441800 1636 1680 2900 2756 3169 Table Effect of Lime and Potassinm on Yield of Peanut Vines.l/ Auburn, Alabama Treatment Ibs./A: Yield QrPe~nuts ViM6 lbs/k (11'Y \>It.) -Lime ""<"-;;-K:'l!"2----:~1~9~50---::-1~9:;':;5]-_~:: 1952 : 1953 : 1954 : Average a o .. , 0 ° 25 50 100 5750 5156 5782 5000 5406 4562 5156 5500 6000 6313 6031 6750 3003 3136 3214 3154 2631 2862 3678 3233 2809 2426 3188 3299 3534 4783 5261 6144 4357 4326 5525 6134 4236 4733 5728 6398 4922 4798 5483 6420 4520 4500 5641 5754 3427 4732 5420 5582 2310 3105 3780 3960 2640 3090 .3555 3630 2100 2925 3585 4230 3904 4196 4704 4936 3911 3868 o o 2,000 2,000 2,000 2,000 4,000 4,000 " ° 25 50 100 4850 3714 4226 4790 5252 o 25 50 100 .; 4,000 4,000 V Lime applied in 1946 as marble dust and the 2 ton treatment received an "d.di+.i~jn.~l 1/2. application in 1952. All plots received 12 pounds of N, 60 lbs. of P2,0S, and 12. 'PU\U~ds of VigfJ per acre' annw.l.ly. . '1Qlr.'''~ ' . :~. ~;: -:' .• ... , . ., Table Effect of Lime and Potassium on percentage Sound Mature Kernels of Dixie Runner Peanuts - Auburn, Alabama Treatment Ibs/A Lime : K2C1 ".+* •• '&4 _~ Sound ~1Y~.w&ls ; : -~1.9.5o:;;......:........;:;.i0 5.:;. :...-L 1252 .... 1 , ·=-12:=;i2~_:-":-:1~2:5~4=-_-~:,--_~5~_-y-e-ar-g-v-e-r-a":"'ge:O-, .... o o 25 65 65 56 63 67 67 59 49 45 51 49 62 63 o o 2,000 2,000 2,000 2,000 , J ' 50 100 67 67 68 71 69 46 44 51 57 46 56 57 64 67 65 55 o 25 50 100 61 66 63 60 63 53 54 57 66 63 60 57 62 68 70 66 62 61 63 4~000 o 25 64 65 68 61 65 4,000 4,000 4,000 69 56 59 58 67 6j 64 63 63 50 100 68 58 5$ 67 65 66 CONCLUSIONS: The yield of peanuts and peanut vines along with annual soil and plant analysis offer positive proof that previous findings o1:ltained on the v,Jiregra.ss Substation and Farmer Fields are correct. In 1950 the exchangeable calcium on the no lime plots / averaged about 750 Ibs. calcium carbonate equivalent per acre and the response ' to lfume was relatively small. By 1953 the exchangeable calcium haa decreased to about 400 Ibs. calciurr! carbonate equivalent and response to lime amounted to 1000 pounds cf peanuts at high potash. The study shows that about 75 pounds exchangeable K20 ,~hen per acr8 is the dividing line between slight response and major response and the exchangeable potash is lowered to about 50 pounds per acre yield is severely limited. The data also shows the importance of the mmount and balance of lime and potash on peTc~ntag~ sound mature kernels. R~ ',D;· Rouse 791!r Table 73 The resl'lts of an cJ...l'criment on maintaining soil fertility and crop production on soils cropped with harvested peanuts. The cxperiment HQS conducted in bins 1/100 acre in size. The soil was Norfolk sa~dy loam. The soil was composm~edmd placed in the binsibefore the experiment was begun. All treatments arc in triplicate. The results shown are the average for all replications. In all cases tho peanuts have had treatment of 10-90 peanut dust to control leaf spot and DDT when needed to control insects. Dixie Runner peanuts woro grDwn each year Outline of Treatment& Used -l'mber N 1 2 3 6 7 • • Treatment Kind No fertilizer, lime or other treatment PK PKL PKL B~ S. PKL G. PKL G~ All ~ and K broadcast before planting PKL G. All P and K in the row ahead of planting PKL G. Peanut vines returned to the land. PKL 'G. Plus 64 pounds N annually PKL G. Plus 2000 pounds 0-16-8 every 3 years. PKL G. Plus minor elements annually, plus . 2000 pounds 0-16-8 every '3 yr$. PKL G~ Plus '3 tons of corn stalks every 2nd year. PKL G~ Plus 6 tons of corn stalks every 2nd year. PKL G~ Plus 12,500 pounds green legumes annually~ PKL G. Pilius 25,000 pounds green legumes annually. 4 5 8 9 10 11 12 13 15 PK 14 =406 pounds of 0-16-8 bedded on 10 days every 6 years thereafter. to 2 weeks ahead of planting plus 88 pounds of ~O as muriate of potash as side dressing after the plants emerge except on treatments 6 and 7. beginning of the experiment and L = 2000 pounds of dolomite broadcast at the = 400 pounds of gypsum applied as top dressing at beginning of blooming. BS = 400 pounds of basic slag applied ns top dressing at beginning of blooming. G N = nitrogen from ammonium nitrate at same time K20 is added as a side dressing. Minor elements =5 pounds borax, 5 pounds copper and 25 pounds manganese sulfate. sulfate, l~ pou?ds zinc sul~ate ' .. .... . The 2000 pounds of 0-16-8 every '3 years should be broadcast ahead6f soil ~en the plots are prepared. iilrning the Corn stalks were cut into short1en~ths and put on top of the soil in the fall soon after peanuts were removed. D. G. Sturkie 80 Table 74 The results bbtained in experiment on maintaining soil fertility on soils cropped with harVested peanuts, (See previous page ~6r treatments~ • • ·- . Treatment No. 1 2 3 4 5 6 Yield ~er aero of:Sound Mature Kernels in IbsZA : 1951 z 1952 , 1953 : 1954 1051 952 881 1103 931 1086 1120 1046 1159 874 1028 13/+3 t • .. 1950 1955 : 6 yr. average 1950-55__ 583 718 1191 1522 1337 ·1494 1144 1461 1445 1190 1139 1416 1701 1547 1074 1052 1037 1240 1379 1304 1383 1341 1341 1355 1772 1711 1856 1916 1830 1722 1835 1971 1868 1752 1722 1978 2103 1891 1998 1862 1685 1489 1461 1412 1603 1615 1778 1333 1546 1635 1518 1723 1547 1778 1915 1603 102Y' 197 280 278 279 333 354 318 258 314 279 299 303 352 328 229 lCJ74 1771 2043 1793 2029· 1849 1979 1797 1795 1679 1802 2168 2101 2135 1803 .. . ~ , 7 8 9 10 11 1254 1231 : . .1428 1510 1466 · 1431 _ 12 13 1190 1150 1233 1076 14 15 Awro.go D. G~ sturkie 81 Tnb10 75A KIIm ,'; LND R'.TSS OF LIHB IN 2 YB.~R ROTLTION •. T FDUR LOCl.TIONS (Cotton-1.vinkr Legume-Corn and SUf'Jner Logune) --------- - POUNDS S ~,~~D COTTON PER l.cm; BY 10 YSLR PERIODS 1930-49 ----------- ----- Plots Treatment :Prattvi11e : Sant Ht •.2I-~-;:~~~~a11eys{Wire;rasP No. :60q# of:Do1omite: 30-s40- :30- :30- :40- :30- :30- :40- :30- :30- : 40- : 30:U : Line: 39 :49 :49 :39 :49 :49 :39 , :49 :49 :39 : 49 : 49 ---------" --- 1 6-8-4 0 1340 ~482 1411 1268 1290 1279 1718 1582 1650 1315 793 2 6-8-4 200zl 1405 1451 1428 1461 1495 1478 1727 1693 1710 1438 998 3 6~8-4 1000~ 1408 1508 1458 1506 1492 1499 17~ 1707 1707 ili443 965 4 6-8 ,-4 4009 1486 1608 1547 1558 1530 1544 1761 1733 1747 1365 949 0 1370 1398 1384 1435 1409 1422 1668 1766 1717 1200 756 5 6-8-4 6 6-8-4 2000~ 1413 1499 1456 1545 1449 1497 1688 1714 1701 1238 802 7 6\ 8-4 6004'. 1418 1516 1467 1514 1440 1477 1668 1726 1697 1220 804 8 67 8-4 3000~ 1417 1523 1470 1489 1373 1431 1662 1706 1684 1195 713 9 6-8-4 0 1349 1357 1353 1467 1445 1456 1651 1679 1665 1061 573 10 6-8-4 (Ca1. )2QO~ 1387 1469 1428 1500 1528 1514 1651 1713 1682 1184 758 11 6-8-4 1000~. 1405 lL~63 1434 1529 1521 1525 1716 1740 1728 1221 823 12 6-4-4 3000]l~1356 1490 1423 1358 1292 1325 1667 1665 1666 1234 826 13 6- 8-4 0 1400 1434 1417 1342 1342 13~2 1705 1683 1694 1218 760 14 6-4-4 0 1337 1407 1372 1217 1229 1223 1612 1482 1547 1257 723 15 6-8-2 3000J/~1373 1353 1363 1297 949 1123 1683 1681 1682 1364 736 16 6-8-2 0 1389 1295 1342 1370 1154 1262 1703 1641 1672 1335 767 17 6-8-4 0 1437 1503 1470 1400 1342 1371 1718 1530 1624 1417 873 Lve. of Checks (1,5,9,13,17) 1379 1435 +407 1382 1366 1374 1692 1648 1670 1242 751 1054 1218 1204 1157 978 1020 1012 954 817 971 1022 1030 989 990 1050 1051 1145 997 11 ---" - ---' Fertilizer applied at tho rate of 600# per acre of formula sho'vm. (Plus enough lime to make a neutral fertilizer from 1940-49) 6-10-4 instead of 6-8-4 applied as basic rate previous to fall of 1934. From 1930-37 1/4 nitrogen applied under cott( and 3/4 applied as a side-dressing. (J~ll N from amrr..onium sulfate). From 1938 to 194( all N, P, and K applied under at planting. Lime applied in drill every two years to cotton from 1930 to 1939. drill every two years to winter legumes from 1940-49. Line applied broadcast once each 10 years (1930 and 1940). 1000 pounds lime applied broadcast on plots 12 and 15 in 1930. pounds applied broadcast in 1940. Changed to 3000 zI ~pp1ied in 11 Wi ~ Sand Hountain: Because lack of potash appeared to be limiting yields, the potash applied to cotton waR doubled in 1944 and 1945. Lfter 1945 cotton gets normal rate 6fpotash. Beginning in 1943 the nitrogen is omitted to cotton at Tennessee Valley. applied as basic treatment after 1942). (0-8-4 §! 11 Wiregrass: Beginning in 1945 the basic rate of fertilizer to cotton is equiva10. t6 600# of 0-8-8 to all plots except 12, 14, 15, and 16. Plots 12 and 14 g ~t double tho basic r~te of potash, and plots 15 and 16 get 1/2 basic rate of pota~ 1.11 rates of lime gave incrensed yields of cotton at 311 locations. There was little difference betvlOon calcitic and dolomitic lime oxcept at Wirogrowhere tho dolomitic was superior. The optimum rate appeared to be 400 Ibs per acre bienn:ial1y except at the Firegrass where 200 Ibs./acre biennfally was bes-t. The highest rates of lime decreased t~ yields at v.Jiregrns~, and Sand Mountain. The greatest responsu to limo w~ s obtained at Wiregrass (about ;200 1bs/acre of seed cotton) and the lowest at Tennessee Valley. SUli1:MLRY: Fred ~.dams 82 Table '7~'S }finds and Rates of Lime in 2 Year Rotation at Four Locations (Cot ton-Hinter Legume-Corn and ~~ummer Legume) lT inter Legumesll per acre (Green Wt.) by 10 year periods 1930-49 Plot : Treatment : Prattville : Sand Mountai~: __Tennessee -V2 11~: ~ Wire gras SY' No. 600// of: Dolomi te : lI/A : Lime : 31-40 :41-50: 31-50:31-40~:41-50 :31--50 :31-40 :41-50 :31-50 :31-40 :41-49: 31-49 . . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 0-8-0 0-8-0 0-8-0 0-8-0 0-8-0 0-8-0 0-8-0 0...8-0 0-8-0 0-8-0 0-8-0 0-4-0 0-8-0 0-4-0 0-8-0 0-8-0 0-8-0 Ave~ of cks 1, 5,9, 13,. 17 20~ 12172 10~ 12900 30 12108 0 . 11005 o v,0234 30002/ 13241 0 11118 0 9558 ca1c~c o 8677 9743 9210 20oY. 10876 119.84 11430 10~ 13677 12457 13067 13961 12537 13249 40 o 10652 12682 11667 2000~ 14318 12416 13367 6002 14164 11816 '12990 3000Y 13880 11562 12721 0 10L~75 12245 11360 12730 12880 10950 12547 11604 11799 11472 10636 12451 12890 11529 11776 10919 12520 11295 10097 2160 5478 5849 6483 . 4M3 736l . 6737 7404 3232 4780 4919 2882 2776 2082 5028 3669 2557 5136 3645 8384 6931 8441 7145 8857 '7~70 ' 6675 5559 8987 8174 ' 8853 . 7795 8934 8169 6646 ' 4939 'Sl54 8447 5732 5668 4150 7560 6075 5565 6467 6683 43(17 4222 3116 6294 4872 4961 8838 9600 9546 10031 8706 10988 10025 10905 8740 9964 10245 84(17 9600 7155 9862 9361 9665 9686 11632 11380 12463 11234 12172 12503 12797 10654 11080 12103 10369 10900 8623 12114 11163 9737 9262 10616 10463 11247 9979 11580 11264 11851 9697 10522 11174 9388 10250 7889 10988 10262 9701 5029 7846 7693 7637 .4679 8117 7669 7877 4568 6446 6535 6404 4575 4081 7194 5404 5274 9285 11205 12648 11454 9693 11634 11230 11358 8193 10200 11051 11576 9490 9173 11750 8930 8977 7045 9437 10040 9445 7054 9783 9356 9526 6285 8224 8674 8854 6903 6493 9352 7074 7028 to "" c:: 10(173 11571 10822 3034 5937 4485 9110 10442 9776 41325 9128 6863 1/ All vetch plots receive at time of planti ng superphosphate equivalent to 6~; of the formula shown, first applied in fall of 1934. (Equivalent to 48# P20 5/A.) Y 11 Lime applied in drill every 2 y~s to 'Winter legumes from 1940-49. Li.lne applied broadcast once each 10 years (Cont i nned on Ha ck Applied i n n r ill t o ",-otton from 1930-39. of" page) -Y 1i/ Lime on plots 12 and 15 l 'as 1000# applied broadcast in 1930 changed to 300# applied broadcast in 1940. Sand l Iountain-the winter legumes get the normal rate of potash at is 24,:1 K20 on all plots except 15 and 16 which get 121/ K20/Acre.) ,~and Mountain beginning in 1944. 19 year average at (That ~/ No fertilizer or lime to winter legume at Wiregrass beginning in fall of 1945. Uiregrass. 7.1 .ft..H. Peas 1931-33) Prattville Vetch 193L.50 ) A. vI. Peas 1931) Vetch 1932-50 )Sand Mt. Vetch-Tennessee Valley-1931-50 A.\{. Peas 1931-33 ) Vetch 1934-42 ) Hiregrass Blue Lupine 1943-49) sm~Y: The gro~nh of winter legume cover crops was increased considerably by lime at all locations, with the highest inereases occuring at Sand l10untain and ~ T iregrass. Fred Adam ~ 1Il, Ta ble ON 75C KINDS 11.ND Ri.'F'ES OF LINE 2 YEl.R ROTJ.TION 1..1 FOUR LOCJ.TIONS (Cotton-Winter Legume~Corn and Summer Legume) BUSHELS CORN PER I,.CRE BY 10 YEl,Ji PERIODS 1930-49 PlotIT~re-a-;t-----'---. • -----Prattville • Sand Hountain •• Tonnessee Valley • 1'!ircgrass No. 'm"'ntl/ • . v . • I DOlometic: ; -------: :---------: Lime/ L '1930-39a40-49:30-49:1930-39:40-49:30-49;1930-39:40-49:30-49;1930-4~ • . 1 o 2002/ - - -. 20.7 . 34.7 36.8 3n.2 49.5 42.1 35.3 28.0 :38.2 39.0 38.6 38.9 38.5 40.3 39.0 40.4 38.9 37.1 39.3 38.2 37.4 36.2 38.8 39.4 36.9 38.0 51.6 44.9 52.6 45.8 52.2 45.4 54.1 ~6.5 27.3 29.3 29.4 27.8 25.2 27.2 25.8 25.7 21.6 26.3 26.3 26.7 26.5 27.1 30.6 29.5 29.1 25.9 2 51.2 44.0 30.3 52.0 45.1 32.6 34.3 28.7 34.9 34.3 50.3 40.3 51.6 42.1 53.9 44.1 44.5 36.6 3 100021 4 0 0'31 4 5 37.7 - 51.7 44.7 33.5 38.1 37.3 36.5 34.9 36.0 37.1 37.8 37.9 36.2 37.7 37.4 36.3 50.1 41.8 50.9 44.5 49.3 43.3 o 20001/ 60031 300011 0 Calci~~c 54.1 46.3 55.1 47.7 52.8 45.9 53.4 46.9 51.7 45.3 50.9 44.0 51.9 45.6 54.0 46.1 50.8 44.1 49.8 43.0 52.8 45.8 51.6 45.5 49.1 43.0 51.5 44.7 6 53.3 44.1 53.5 43.9 55.3 45.6 45.0 35.4 52.4 41.5 53.0 42.8 46.0 35.5 39.6 34.5 31.4 28.8 7 8 9 49.5 43.0 35.9 49.3 42.1 52.4 44.2 51.9 44.5 51.8 44.8 51.7 44.8 49.4 42.8 50.7 44.2 49.6 43.5 50.7 43.5 50.3 42.9 25.8 30.6 32.6 25.0 23.2 23.1 32.0 29.2 24.3 24.5 10 11 12 13 14 15 16 17 ;~e. 20@ 10001/ 3000Y~ 0 ~ 0 300aJ/~ 0 0 50.6 41.3 44.4 37.5 40.4 36.8 30.9 32.5 of Cks.(1,5, 9, 13, 17) 35.5 11 Corn r eceives ?I Limo applied '1/ 4/ no fertiliz er of any kind. l.pplied to in drill to cotton from 1930-39 once avery 2 Y3ars. winter l egumes from 1940-49. :.pp1ied brondc.) st once eD.ch 10 yoars. Lime on plots 12 and 15 was 1000# broadca,st in 1930. 3000# broadcast in 1940. Corn in thi3 experimont discontinued after 1940 at 'V.Jiregrass and peanuts used in place. This is an ll-year average. 21 Conclusions: The corn yields for the second ten-yoar period were considerably higher than the fir st period. Ln average 10-to-15 bushel incrcGse during 1940-49 was obtained at Sand Ivlountain from line applications. Thor o was a slight re sponse to limo at Prattville and Tennoss ee Valley. Tho ):lighest 1hle rates depressod the yields at Wiregrass ,and at Prattville. Corn yiolds were increasod slightly by the low rates of lime at Wiregrass. Dolomitic lime was superior to calcitic limo only at tho .~ 1J.Tiregrass Fred l.dams Tc.b10 75D KINDS AND RATES OF LIME IN TWO YEAR ROTATION (Cotton - Winter Legume - Corn and Summer Legume) Wiregrass Substation Peanuts substituted for corn and summer legume beginning in 1941 POUNDS OF PEANUTS PER ACRE FOR 9-YEAR PERIOD Plot number 1 2 3 4 600/l/A ofl! Average 1941-49 1819 1872 1836 1814 1804 1507 1494 1416 17.36 1722 1727 1464 1857 1688 1579 1812 1886 1820 0-8-4 0-8-4 0-8-4 0-8-4 0-8-4 0-8-4 0-8-4 0-8-.4 0-8-4 0-8-4 0-8-4 0-8-4 0-8-4 0-8-4 0-8-2 0-8-2 0-8-4 0-8-4 5 6 7 8 9 10 11 12 13 14 15 16 17 Avg. of checks, 1, 5, 9, 13, 17 11 Apply lime in drill to peanuts in the drill (1945-49) as formerly to legumes (1940-44) Lime applied to cotton from 1930-39. Refer to table of cotton yields for detailed liming treatments. SUMMARY: The yields of peanuts was reduced on the application of lime , with the greater reduction occurring with the higher lime rates. Fred Adams 85 Tr'.blo 7% KINDS AND RATES OF LIME IN TWO YEAR ROTATION (Cotton-Winter Legume-Corn and Summer Legume) ~~S~o.y,beans Crota1aria Green Wei ht-Pounds Acre Plot: Prattville Sand Mt. : Tenn. V. : Prattville.: No. 1931-34 1930-34 :1930-34 1937-45 1 6548 7787 8478 8431 2985 4142 4815 5216 4763 5388 '5349 5858 4555 4782 5437 4304 4109 3638 4929 3539 3327 3948 7027 7828 7328 7979 7599 8326 8465 8775 7699 8318 8168 7990 7536 6908 7601 2924 2852 3229 3444 2176 1917 2092 2235 1888 1958 2174 2294 1920 2596 2105 2.896 3127 2772 3220 2113 1801 2047 2374 2280 2301 2185 2 3 5 6 7668 8408 8575 9061 7173 7911 8206 8624 7623 7175 9432 8089 7711 1541 3137 3114 2877 7 8 3125 2454 1612 9 10 11 2234 2407 3239 1823 2441 3949 2826 4138 1809 1896 2135 1932 1749 2021 1555 2216 2026 2958 2876 3171 2908 3150 3052 2700 2768 2679 2004 3419 2316 1561 2766 1837 1699 2004 12 13 14 15 16 17 Ave.1, 7345 5, 9, 13 17 7414 2383 2778 11 ~I ~I No summer legume planted in 1935-36, No summer legume planted in 1935. No yield record of crotolaria taken in 1936 No summer legume planted in 1935. because of weed infestation. kl Soybeans failed in 1930 and 1932. Velvet beans failed in 1931. Peanuts planted in 1933-34 but no yields measured. No summer legume planted in 1935-[ 7. Peanuts 1 planted without corn after 1940 and results are found in separate table. Lime applications increased the yield of Crotalaria slightly in most cases. The SUMMARY: Soybean hay yields were increased at all locations with the addition of lime. greatest increases came from the broadcast applications. ::Tr od !.daras Tnblo 76 SMALL AMOUNTS OF LIME TO carTON Brewton Tier 11---1934-35 Continuous Cotton for 2 Years Plot: No. : Fertilizer Formula 1/: Dolomite: 600#/A - : Lime #/A: 1934 B31 B33 762 Yield - Pounds Seed Cotton Eer 'Acre 1935 Average, 1934-35 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 6-10-4 6-0-4 0 211 0 211 0 7BO 957 B06 895 6-0-4 6-2-4 6-10-4 6-2-4 6-2-4 6-4-4 6-10-4 6-4-4 6-4-4 6-6-4 6-10-4 6-6-4 6-e-4 6-8-4 6-10-4 BOO 902 844 781 87~ B53 920 1040 1350 1247 1195 882 967 . 0 B94 IlBe 211~/ 210 0 0 ).268 1228 1209 1059 970 llZ7 994 101B 1115 1071 1042 1017 944 1008 903 2110Y 211 0 0 211 0 0 10Z2 1050 903 973 944 1068 1061 973 995 944 1031 863 1054 824 Y Ammonium sulfate, superphosphate, and muriate of potash used at planting time; 3/4 of N applied as sodium nitrate after chmpping. 2:1 Dolomite applied broadcast on plots 7 and 11, applied in drill on all ether plots. SUMMARY: A good response to phosphorus was obtained. The response to lime application was somewhat erratic with respect to amount applied and method of application. Fred Adams 87 Table 7? .. Efftct of Lime , BaSic Slag., hd : Superphosphate on a 2 Year Rotation of COTTON-HINTER LEGUHE-CORN & SUMt1ER LEGUMES BreVTton 1933-44 Tier 15 and 16 Plot No. 'T00ottonY Super #/A To 'P inter Legume Super Basi c Slag: To Both Tiers in 1933 & 1939 : Formul~ : : (Total N.P .K. : 12 year Averge 1933-# :applied in 6 : Cotton : A.W.Peasl: CrotalarialJ': Corn years) II/A: HIA G.W. G.l 190 256 509 350 140 195 191 262 530 357 174 216 Hartsell f.s.l. Norfolk f.s.l. Lloyd e.1. Boswell c. 172 ---------------------------------------------------------11 Reference: Hoar, John I. Beron requirements for crimson clover seed production, its accumulation in soils, and residual effects on sensitivo crops. J~onomy Journal 48: 132-134.1956. J. I. Hear " Table SOt, Minor Elements to Corn Monroeville 1948-51 Bu. per Acre The objective of this test was to determine if applications of zinc or other minor elements would increase the yield of corn. - -•Minor Elem~ _Treatm£n 1 1 None 2 15# znS0 4 1948 56.1 59 .. 4 1949 62.4 55.5 . --- .J:22Q._!.._ 60.4 1951 71.0 70.5 Av. , 1948-51 _ 62.5 60.6 .,' - --------- ----56.8 .... -----3 15# 15# 5# 5# znS04 MnS04 CuS04 Borax 56.4 57.3 57.6 70.8 60.5 - ------- ----. 4 15# znS~L._ 15# MnS07 5# ~uSoZ 5# Borax; 50# MgS04 53.3 57.9 71.9 60.6 -----------------------------_.----11 All plots receive 600# 4-10-7 in drill ---------at planting. Table BOB Effect of Zinc on Yield of Corn - 3-year Average, Brewton Field, 1953-55 ,:. t c ' I_- Yield of Corn 195ft Bu./A. 23.6 1955 Treatment 1953 Du./A No Zinc 5 lb. ZnS04 per a.cre 10 lb. ZnS04 per acre 15.1b. ZnS04 per acre 15 1b. ZnS04 applied 1951 on~y B-;:/A 52.5 Ave. :fu25~-22 Bu./A 39.1 .. 41.2 - ..-. ... - . . 39.5 23.9 49.8 37.7 39.4 22.6 50.4 37.5 41.ih 25.8 45.9 37.6 39.0 24.8 47.7 37.2 No Zinc, 1 T. lime 1951 10 lb. znS04 per acre per year 1 TI lime I 195~ J I Wear 42.1 28.1 53.4 41.2 40.6 28.4 52.2 40.4 98. Table Sl Effects of Zinc on Yields of Corn Brewton Field, Wirograss S. S. 1953-55 The objectives of this test are as follows: 1. To determine the zinc requirements for corn on zinc deficient soil. 2. To determine the effects of lime on zinc requirements of corn. 3. To determine how long 3n application of zinc will last in the soil and if this application will correct zinc deficiency for a period of years. The soil types: 1, 2. Norfolk sandy loam - Wiregrass Substation Kalmia sandy loam - Waterfield near Brewton Field. Effect of Zinc on Yield of Corn - 4-Year Average, Wiregrass Substation 1951-54 10 lb. znS04 per acre per year 1 T. lime, 1954 34.5 20.3 40.5 49.5 36.1 --------------------------------------------------------------------------J. I. vlear Effect of Minor Elements on Yield of Cotton, Corn, Peanuts, Lupine, Hairy Vetch, Austrian Winter Peas and Crimson Clover. To obtain more information on the requirements of a numbe:rr. of field crops for minor elements a field test was starte.d on the agronomy farm at Auburn in 1941 to determine the effects of zinc, manganese, copper and boron on the yield of cotton, peanuts, and corn. The test later included Blue lmpine, Hairy vetch, The soil was classified as Chesterfield Austrian winter peas and crimson clover. sandy loam. This soil had been previously limed and had a pH value of 6.0. For the first five yeara a three-year rot-ation of cotton, peanuts, and corn was used with a medium rate of fertilizer. pounds of 6-8-4 fertilizer per acre. The cotton and corn received 600 Peanuts received lOa pounds of concentrated The test was designed to omit one minor super and 150 pounds of gypsum per acre. element at a time, to add all and to omit all of the four, and one treatment which received no fertilizer of elements was included. as follows: Rates per 8.]re and sources were 10 pounds of zinc sulfate, 5 pounds of copper sulfate, 5 pounds of mang~nese borax and 25 pounds of sulfate. In 1946, after the first 5 years, the fertilizer was increased to 1,000 pounds of 8-8-8 for the cotton and corn, and the peanuts receiveq 75 pounds of muriate of potash in addition to phosphate and gypsum. changed to a ~monium The source of nitrogen was nitrate. Dolomite was mixed with it to neutralize the acidity. Beginning in the fall ~ No change was made in the minor elements used. 1945 strips of different winter legumes were planted across the plots in the .peanut tier; after the peanuts were dug no fertilizer was applied to the winter legumes. The winter The legumes 'Jere plowed under in the spring and corn was planted on the tier. results of the corn, cotton and peanuts for this 6 year period are presented in Table 2. The green weights of the winter legumes are presented in Table 3. Under these conditions of high fertility eorn averaged S.l busr.els more v1hfOm 'Z.in, was added. this test. No int::lrease in yield of coi:,t,orl or IJeanuts '"las rr,easured as a reBult , of' (Tests on back of page) 95 'Table 82 Effect of Minor Elements on Yield of Cotton, Corn, Peanuts, Lupine, Hairy Vetch, Austrian Hinter Peas and Crimson Clover :Yield-5 Yr. -Av. (lQ41-1945) : Yield-6 Yr. Av. C1946-1951) : Yield - Green Weight __ .. Minor Element Treatment : ' : : 1/ 1/ Austri~ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _:::..::C-=-.otton: Corn :Spanish Peanuts:Cotton: Corn :Spanish Peanuts: Lup_ine.=l : Hairy_ Vetclu\Jinter Peas: Crimson CloverY Iba/A ' Bu./A - --_ .._ ---._ Iss/A 1169 1156 1385 m274 1299 1353 1123 Ihs/A 1617 ' 1758 1738 1780 1592 1682 342 Thl./A ~9.6 Ibs/A 1312 130B Ibs/A 19588 19096 22009 22515 240'Pt! Ibs/A 8320 9832 10450 11327 10928 11080 3484 Ibs/A 11906 12200 11363 12468 12810 11090 6388 Ibs/A 7130 7591 9099 9565 8051 7444 2293 C1' 1. No minor elements applied 2, 3. 4. 5. 6. 7. Boron, manganese, copper (-Zn) l'fanganese , Copper & 809 . 753 874 880 980 33.0 28.4 36.3 38.6 35.0 32.6 13.8 61.7 . 67.2 65.8 66.6 66.8 32.3 Zinc (-B) 1395 1370 1261 1315 1128 Copper, zinc, ec boron (-Mn) Zinc, boron & manganese (-Gu) ~ Zi nc, boron, manganese & copper +010 No fert. - no minor elements 295 24314 19763 11 61 1I 3 year average 2 year average 4 year average J. I.Wear Tabl0 83 Fortilizer Placemont Test for Hairy Vetch :.lex'1ndria - 1932-34 : ,---Groen hit, in Lbs . Per .~cre --1932 1933 19~ tve . 32-34 Fertilizer / L None How applied 6550 Broadcast Broadcasf Broadcast In Furrow In Furrow 6345 10540 12585 14040 12970 13360 75JO $700 14600 19150 30$50 19470 17750 7198 . 11080 14258 18807 13$43 200,» Superphosphat9 400# Superphosphate 800# Suporphosphate 200# Superphosphate 400i1 Superphosphate None $100 11040 11530 9090 10275 6325 13795 6775 6500 Method of preparll1tion - None Seod per aero - 30,# Variety - Hairy Vetch :,rea Harvested - 1/1000 o.cro ~t the low rat~ of phosphorus, i n tho furrow method of application gave .it the higher rate thero was little ;'otter results than the broo.dcast methed. difference in the two methods . J.T. Hood 96 Table 8l-2 Response of Sericea to Rates of Concentrated Superphosphate Sources of Phosphorus, Lime, Sulfate, Potash and Hinor Elements at Sand Mt. Monroeville, Tuskegee~ Piedmont, Alexandria, Brewton and Prattville -19L~8-52 Treatments17 :Sources o f : . .Phosphorus: LllIle : : lb. CSP CSP CSP CSP Cst' CSP CSP CSP CSP CSP CSP Phos~ No. :P205 applied : ··1'..nnually :1947-50:1953.;;.55: lb.. lb. 50 100 150 100 100 100 100 100 100 100 100 100 100 lOO :: B~'Wton: Pra-~tvil1e ------ . Fleld: F10ld :19' ?·-53 :.1.90.87.=2::.....-__ .. 5 lb. lb. 60 60 60 120 120 120 120 120 120 60 240 120 120 120 120 120 120 1 2 3 4 5 6 7 8 9 10 11 2000 2000 2.000 2000 2000 2000 2000 2000 0 2000 2000 2000 12 Superphosphate 13 FT Ca. 14 15 16 17 18 10 mesh2000 FT Ca. Phos . 40 mesh2000 Colloidal Phose 2000 Colloidal Phose 2000 Basic sUJa 2000 Basic slag 0 0 100 0 100 100 100 100 100 100 100 100 0 0 0 o o o o 5758 6060 5722 30 120 60 60 60 60 60 o o o o o o B o o o BME o 60 60 O · 2002/ 200 100 100 0 0 120 120 120 o o 0 0 60 60 o o 120 o 5952 6471 6267 6025 6363 6197 6169 5817 5595 5584 5993 5924 5895 6300 6270 6450 6579 6380 6433 6488 6495 6273 6489 6030 6736 7193 6624 6641 65g'7 6564 6702 6806 6383 6150 7264 7285 7110 7574 7710 7058 7544 6430 7280 7577 7395 7380 7530 7572 7394 7424 7427 5444 5524 5762 5052 5434 5539 5377 5060 5246 5652 5565 5335 5542 5224 5133 5124 5224 5876 4832 5156 5264 5065 5158 5151 4902 5144 5319 5304 5408 5080 5257 5203 4997 5206 5129 5118 71:72 6619 7225 7234 6886 7174 6548 6230 6826 5994 7173 6329 6180 6712 6231 6743 7077 6627 6559 7115 6369 6477 7052. 6443 6/.,.66 6714 6626 6761 7252 7671 6952 ?l'1l 7205 . ~ 6868 7208 7140 11 Lime and rertilizer applied before planting - thereafter all fertilizers applied before growth starts in spring. S03, K2 0 , and lime supplied as gypSUM, muriate of potash, and doloMite, respectively. No phosphate applied in 1951 and 1952. 2/ Superphosphate (lno pounds P205 per acre) used at planting, colloidal phosphate used thereafter. B 15 pounds borax"pcr acre ,' . 0 . pounds MnS0 , 30 pounds ZnS04' and 10 pounds CUS0 per ('cro. ME = 3 4 Concluslons: ~~ther large yields of hay 'Were obtained at4 all locations, especially considering the fact that some of the summers 'Were rather dry. The experinent is being continued at Sand Hountain Substation and at the Tuskegee and Monroeville Fiolds. Rosporl2e t o trCl[,t nenis have boen obta.:ined only nt Sand Hountain SUbstation and Tuskegee Field. 11 response to phosphorus '.Jas obtained at .sani M ountain for the first time in 1955. Results from the Tuskegee Field showed a significant response to phosphorus Rnd lime :for 1954 and 1955. L. E. aI = Tabla 84 The Yields of Crops in Cropping Systems Experiment at Tennessee Valley Substation - 1930-53 by 6 year periods Cropping System Crop • • Tier Yield b:£ 6 l::ear periods . : PIcht :3QJ;J5• .36.41:4b-J.'1:48'::"53:3o-.S3 • 4 • : • 1 • 2 • 3 . . . UOiYEi~uous Cot~on Continuous Cotton No N Cotton ~on~inuOtls~o~~on N Cotton w.L. ~~s Corn No.N Continuous Continuous Continuous (begin Continuous Continuous Continuous Continuous Corn Corn N Corn Corn 1 7• n. ' Corn ' '1 L. ,1. Corn, N. ,'tv .L.Corn 1950) vI. L. oats'~ Oats Oats z N Oats oats, S. L. Oats s. L. oats, N. S.L. hay Oats S.L.Hay Cotton Corn Cotton N Corn N Cotton Corn Cotton Corn w. Co~ton 17 I'7 1'7 21 21 21 19 19 19 19 19 19 17 19 L. 2 3 4 4 4 2 3 4 4 4 4 6 7 6 7 !t li 2 :3 !t 919 II;4 1I40 8628 23.2 22·2 31.0 7511 I~14 756 II96 5871 1l!: \~0 36.1, 34.0 lI:211 ' • c 582 764 II40 II'l4 I223 1I99 7678 '10300 8112_ 21 0 9~0 13 e8 23.0 a5i 6 ~112 27.1 36.6 32.2 6774 ~~~~~ IIS~ 1~38 799 17..4- '7 8'7/ 36.1 32 .77/ 22.3 18.71 3722 80 59'§/ 11 13268~/ 12.0111' 35~2JV 21.411/ lI:3LiW 43.7]/35.6 5e.(#io.gJ2/ 259')2.9/ 318()~/221.2 975 843 2l1:.3 15.5 804 648 818 7.4 5577 13.2 2 Yr. Rot. 2 Yr. Rot. 1240 1481 1421 1270 1353 34.0 42.1 31.0 40.6 36.9 1233 1389 1264 1061 1237 12756 8131 11135 13740 11440 38.2 44.5 33 .. 8 45.9 40.6 1133 10948 19.9 6763 1412 8385 29.5 5858 1282 8640 17.7 6660 i 932~41/ 2 Yr. Rot. Cotton, W.L.Cotton Corn 1/1. L. Corn Cotton W~L.Cotton Corn S.ll. W. L. Corn S.L. Cotton Cotton Corn S. L. Corn ' S. L. Cotton, N':v.1.L. Cotton Corn W.L. Corn: Cotton ' Cotton Corn,N, W. L. Corn vJ. L. Corn,Oats,N Corn Grain Sorghum N, H.L. Oats G. Sorghum 19 9 10 2 Yr. Rot. 21 6 7 327f#./ 22.1#/ 6427?J./ 1217W 15.iID' 5360ll/ --21 9 10 1247 1237 1166 20.5 17.2 7.6 6203 4729 5148 2 Yr. Rot. 2 Yr. Rot. 17 9 10 1431 1439 1374 1222 1366 13945 9983 11598 15282 12702 36.4 45.8 31.4 4'6.4 40.5 2 Yr. Rot. 19 2 3 1166~/1308 1293 ~126722./ 37.21124 •4 38.9 33.~/ 3322'v1'"n t lnu.0(1 10 10211. flYJ . . : Cropping System 2 yr~ : Crop: %: 5 Yield of croR§ per aero Average by 6 YL...pcriodL-_ P : 1930-35:36-41:42-47:48-53:1930-53 - rot., Cotton W. L. . Cotton Corn N., p. L. W. L. Corn W. L. 6 7 ---- 1m 6378 33.7 8.392 -_.. 2 yr. rot., Cotton N Corn N. W. L. Cotton Corn F. L. 5 --------------,------------------2 yr. rot., Cotton N., H. L. Cotton 3 Corn N., V. L. W. D. Corn t-1. L. 9 & 10 I:f.38 28.9 7841 6 & 7 --;:I US7 6305 31.2 8~9 3 yr. rot., Cotton Oats Corn 3 yr. rot., Cotton N. Oats N Corn N 3 yr. rot., Cotton., W. L. Corn . Oats, Legumo Hay (1930-37) 958 908 873 Cotton 3 1,5 Oats 4& 8,11 13.2 11.4 11.0 Cern 5 &17 19.7 . 15.6 20.1 Cotton 3 4 O ats Corn 5 Cotton 3 W. L. 4 Corn 5 Oats L. H. . 91312/ 11~912/ 18.5]j/ 12 ' 1489 30.6 34.3 1690 1479 40.2 30.9 31.8 36.8 33.913 / 1553121 34.3ll1 1187]A/ 16 1070 1539~/--4176 87782}--25.8 . 36.2Y--16.1 16.8~/~2684 69 05Y--- --- 5326M/ 28.41W 16.3l!t./ 373~ 3 yr. rot., Cotton Oats 36;-¥N POMuts (dug) Corn, H. L. (1938-43) 3 yr~ rot., Cotton' 48#N Oats 4~N Peanuts (dug) H. L.r Corn Cotton :3 Oats 4 Poanuts 5 Corn 16 142921155~/--40 • 62136.62:.1/--. 118621i817~--- 1469W 39.3?12/ 1312£41 vi. L. 20l62/26. s?:.Y-__ ... 22.7 20/ 866s.gQ/ . 7672.MOffiill/-- Cotton.3 Oats 4 , eanuts 5 P H. L. 16 --- 1233W ----- 29. 2?:'Y _--- 924W __ _ - - 36. o?:.J.I __ _ -=0. -----------------.-----------------------------3 yr. rot., Cotton Cotton Oats ... L .H. ,W'~L.Oats 3 Peanuts 4 Corn and Poanuts L, H. 5 14 w. L. Corn 3 yr. rot., Cotton Cotton 3 Oats; L. H., vI.L,Oats 4 Corn, S.L.,W.L. L. H. 5 vl.L, 1214 . 1577 1310 11.3 21~6 18.& " 1759 965 755/;;/ 2336 3211 2944 5834 803QJ6524 20.8 32,2 20.3 I 1'=367121 191oU/ 113212/ 283011/ 1012911/ 24./J..Y ------~-,--------------------------------------- ,----- 13 1422 18.4 2517 570~ Corn S. L. W. L. 25.5 1971 5813 15 1335 ·1816 1652 26.9 24.3 3692 3064 99211€451 36.1 46.9 / 2516 6126/J: 755016139 1706 1470 Cropping System . . .\ver El go bv 6 yr. m riods 9 Crop : T : P '-1--3-0--3=5=:=3~~-41:&42-47 :4$-53 :1930-53 --,- --- -, _ ..J.....,L. '-' ~\,.A. --- . . _ ..... ..... r:-~. ~ L. H. W. L. 3 yr. rot. , 8otton Poanuts Corn 3 yr. r ot., Cotten N 269$ 50$2 3 4 5 3 4 5 5 4023 35152/ --$197 144$9 129'1\ 18'75 24.4 1605 196$ 25.0 1555 1$6'7 7496 26~ 2 3406111 9256111 Cotton Peanuts Corn Cotton Po!1.nuts Corn Peanuts N Corn N ' 3 yr. rot., C otton 12 ---1 Peanuts H. L. Corn 1T.L • . C otton 3 Peanuts 4 W.L. 5 Corn W.L. Cotton .3 P6c::iluts 4 111L. ' 5 Corn Cotton 3 Peanuts 4 CChrn 5 1,] •L. Cotton H.L. Peanuts H. L. Corn H. L. 3 4 & 1 $ 17 .. ,,~ $044 15 1734 1990 6472 24 .0 1603 2064 26.0 $726 3 yr. rot., C on N ott Ponpllts Yl.., . L Corn T $ yr. r ot. Cotton Peanut s' Corn N., W. L. 14 ---. 3 yr. r ot., Cotton W.L. Pocnuts W .L. Corn H.L. 13 1604 531$ 1951 5$41 26~ 2 5 7641 11 1564 757~ 3 yr. ro t.~ · Cotton N. 1rJ .L. PeQnuts N V.L. Corn N. W .L. Cotton 3 H.L. 4 Poanut s & H.L. 5 Corn H.L. 1809 6149 26.8 9950 1708 ..-- 3 yr. rot., Cotton Poanuts :7 . L. Cor n p.L. Fer t ilizer B.C on B part of Peanut o.rba Ferti lizer in D~i;t l , t. par~ of Peanut ar ea Cotton .3 16 Poanuts 4 Fort.B.C.5 Poanut s Fort. Drill 1848 25/ --19432:2/ 605$ 26. 9 7659 W L. . Corn V . L. 1// .3 yo,' r aver e.go - No r eport in 1944, 46 2 ;;.t . and 47. fiva . of 1936-37 ~/ 5 yoar avo. No r ocord f or 1943 k/ 4 yO Q avo. r ~ 4 yoo.r avo . 1938-41 ' 6/ 4 year avo. bO Ran in 1938. 7../ 4 Yo0cr avo. 1937,39 ,40&41 Oats on plot 1930-36 ~/ .3 yoqr avo. 1939-4.1. 2/ :wer ago 1936&37 Eontnotos cont i nued 10311 lQ/ 1 yo~r avo rage 1936 only. In 1938 plot 4 had Austrian poas and cotton gr~ which yield 15268 and 2077#/.1 rospective1y. ,In 1937 Corn 36#N yio1ded 51.7 bu corn p0r acre. 18 yoar avo. 8 yr. avo. 7 yr. avo. 1'5 yr. avo. 17 yr. avo. 16 yr. avo. 14 yr avo. 6 yr avo. 2 yr IlVO. 1942943 1 yr only 1942. No rocord for 1943 4 yr. avo. 1944-47 5 yr. avo. 4 yr avo for poanuts,oats and soybeans f(1r seed C'n plot in 48 & 49. refer to rotation chango for plot 16, 1950. CONCLUSIONS: 4 yoar avo. No record in 1946 & 47. 3 year avo. 1939-41 No yiold Qats Oats should not be grmm continuously on the same land. (comparo yield of T4 P4 with f11l tiers, Plot 12. PlmJing under a sunnnor legume to furnish nitrogen for oats does not r osult in a high yiold of oats (T4 P4). Oats apparently must hnvc com... mercial nitrogen in the spring fer maximum yields. Cotton Cotton "can be prown continuously if N is supplied in the fertilizer or as winter legumes (T3 Plots 2,3 and 4) a rotntien appe~rs to bo of somo benefit to cotton' (Compare T3 P3 with T4 P6 & 7 or all tiers P12). The maximuni yields were obtained in a rotation usin:-' legumes. Tho );jost 2 yoar rotation Was cotton N followed by ,,: winter legumes turned for corn (T3 PS & 10). The most practical 3-year rot'lticm: was cotton N peanuts, H. L., corn (all tiers PIS) • .QQ!!l Corn can be grown continuously if N is suppliod as a fortilizer or as wint~r 10 gumes. (T5 Plets 2,3, and 4) a rotation did not appoar to be beneficinl te corn in these tests. Fer~i11zors: nIl plots had 60~f. 0-10-4 annually from 1930-39 and 0-8-4 ~~om 1941-44 and 0-8-8 from 19L~4 to d~t~ \ilion N was used it was 36# from 1940-43 and 48f.i 1944 to date. D. G. Sturkie l03B Tc.b1e fflA Tuskegee - 1939-1953 Cropping System s Tier II : Plot, No. : Crop , # seed cotton : : # seed cotton or Fertilizer: Rotation l,gr bu.Lacre IFerti1izerl/:~tLacre :1948-53:1939-53 :1939-44:1945-47: 6-10-4 0-10-4 0-10-4 0 6-10-4 0-10-4 0 6-10-4 6-10-4 0-10-4 0 Continuous 2-Yr. 2-Yr. 2-Yr. 2-Yr. Con't inuous 2-Yr. 2-Yr. 808 938 6-10-4 6-10-4 0-10-4 0 6-10-4 0-10-4 6-0-0 6-10-4 6-10-4 0-10-4 6-0-0 1008 1080 16590 20.8 1058 16597 25.8 871 1143 17091 27.4 730 951 20322 914 19021 15.7 804 18081 17, 1 Cotton 2 Cotton 3 Lupines Corn 4 Cotton 5 Lupines Corn 6 Cotton 7Z/C otton 8~/Lupines 80rn 9 748 244 2872/ 23883 5.3 26.3 616 670 2412/ 21050 6.1 608 32.6 691 877 26783 41.7 7~ 59 13.4 32.6 Oat~/ Kobe Lesp. 10 . Lupines Corn 11 Cotton 12 Cotton 13 Cottorfo/ 6-0-0 Spring 3-Yr. 0-10-4 0-10-4 0 3-Yr. 3-yr. 6-10-4 6-10-4 0-10-4 Continuous Continuous 23.0 6-0-0 49.6 0 2260~ 2532 0-0-8 41 None Planted 0-10-4 15570 23.6 6-10-4 20.5 11.4 702 957 740 6-10-4 762 624 862 591 6-10-4 6-10-4 1000 1183 36i6 1410 15570 812 877 11 All formulas basis 600# per a~re. All minerals applied before planting. Nitrogen applied as follows: mo Cotton: 1/3 N as ammonium sulfate plus dolomite to correct acidity, mixed with minerals and applied before planting, 2/3 N as sodium nitrate applied as sidedressing at se~ond cultivation - except on Plot 13 as noted. (Prior to 1948, 1/4 N as sulfate and 3/4 N as soda. No lime - all applied under ). To Corn: All N from soda applied 30-40 days after planting. To Oats:: All N as soda applied March 1-10. 2/ Two tons dolomite per acre to plots 7 and 8 in fall of 1938. ~/ N minerals: N from soda applied March 1-10. o seeded in oats March 1-10. Kobe lespedeza, unfertilized, al All N, L, P & K mixed and applied before planting. 2/ Vetch instead of lupines from 1939-44. 2/ Cowpeas instead of Kobe lespedeza from 1939-44. CONCLUSIONS - Tier II Vetch as a green manure crop was unsuccessful when tried for the first six years. Lupine was much more satisfactory. ~upine increased corn yields about 20 bushels. Lupine residue increased seed cutton yields about 500 pounds when no nitrogen was applied to cotton. ~ _ Vetch in the rotation did not increase yields of cotton which received 36 pounds of N. J. T. Cope, Jr. 104 T· .ble 87B Cropping System s- Tuskegee 1939-53 " Two and Three Year Rotations of Cotton, Corn, Oats & Lespedeza Tier I Plot: No : Crop :Fertilizer 6-10-4 0-10-4 0-10-4 6-10-4 6-0-0 6-10-4 6-10-4 6-10-4 1/ Rotation :~uLA :Fertilizer :1939-44:1945-47: Continuous :#Seed Cotton . • :# J/ . Seed cotton or Bu[A • :1948-53:1939-53 905 393 3.1 954 24.4 1010 1127 27.5 53.0 0 26.0 1043 1056 1027 790 293 4.1 789 23.0 821 899 26.8 1112 22.6 861 906 44.0~ 1 Cotton 2 Cotton 3 Corn 4 Cotton 5 Corn 6 Cotton 7 cottOj ' 8 Cor~ 9 689 226 4.6 655 .'20.7 658 701 24.6 45.0 19.1 688 772 540 761 224 5.3 729 24.9 770 839 29.8 26.9 3337 22.7 845 872 417 6-10-4 0-10-4 0-10-4 6-10-4 6-0-0 6-10-4 6-10-4 6-10-4 6-10-4 0-0-0 6-10-4 6-10-4 6-10-4 6-10-4 2 yr. 2 yr. 2 yr. ·2.yr. Continuous 2 yr. 2 yr. 3 yr. 3 yr. 3 yr. Cont~.nuous 6-10-4 Kobe Lespedeza 10 Corn 6-10-4 11 Cotton 6-10-4 12 Cotton 6-10-4 OatJ.I X CottonJl 0-10-4 Continuous 11 All formulas on basis of 600#/A. All minerals applied before planting; nitrogen applied as follows: To Cotton: 1/3 N as ammonium sulfate plus dolomite to correct acidity applied at planting, 2/3 N as sodium nitrate applied as side-dressing at second cUltivation - except on plot 13 as noted in footnote 3. (Prior to 1948, 1/4 N as sulfate and 3/4 N as soda - no lime - all applied under.) To Corn: All N fr~m soda applied 30-40 days after planting. !2....9at12: All N as soda applied March 1-10. ~I Minerals under before planting, N applied as side dressing. J/ All N and minerals applied before planting. Minerals applied at planting time. N top-dressed March 1-10. for hay seeded in these oats March 1-10. Kobe Lespedeza lJi 2/ 9 year average of 3 crops. Not planted until 1945. CONCLUSIONS: Cotton which received 36 pounds of N produced about the same yield when grown continuously as when in 2 or 3 year rotations. 36 pounds of N increased seed cotton yields about 600 pounds and corn yields about 22 bushels. ~ately 90~ pounds seed cotton, 25 .i..l:>sp">Method of Planting Summer Legumes in Corn Wiregrass Substation 1933 - 1938 Summer Legume s Yields Flot :_,_ _ _ _-lli:een Woight and Seed Yields Pounds/i.. : No. :1933:1934:1235:1936:1237:1938: 6 pear ave. 1233-38 2 Peanuts Greon Seed wt· y '}./ . 2450 3855 1847 6010 436 926 609 1459 1071 882 3541 897 3746 3721 944 3598 989 4280 871 3901 8621 1158 4550 425 6432 6244 2509 4759 Vetch Green Ht. .3 5663 457 5118 ~/ Peanuts Poanuts Green Wt. Seed Groen l,Tt. Seed Groen Wt Seed Green ' T t. Groen 1rJt; Seed Green pt. Seed 1/ 2951 4291 1792 5850 609 849 750 1553 1039 866 4 6 7 8 10 11 12 14 16 y 11 2505 4269 2091 5528 565 948 730 1632 1213 848 Po anut s Soybeans Volvet Beans Ccwpeo.s 2/ 1/ 2842 4966 2023 72g0 480 774 794 1353 1173 651 4596 3028 1318 ~055 4029 4378 9431 7797 8538 8690 Y 8647 600 912 2394 1440 947 656 o 3866 ]034,2 9017 o 4073 425 Crotalo.ria Green 1rIt. Crotalaria Green pt. Soybeans Green '{ITt. vIto 0 WIG 8015 :13286 1285 4291 9128'4 8734 9104 4204 2526 3550 1437 14:/ • 4073 10~¥243¥ Crotalaria Greon 0 ill51 5728 6490 2744 2439 11 Y ~ Crotalaria in 1937 and 1938 - soybeRns in previous years. No Green wts. taken Grass worms destroyed peanut leaves Error - not planted. kI ~UD~e Q~~ Plot Method or PlantinG Sumner Legume in Corn Wiregrass Substation 1939-45 Crop Combination and NHmgpn Fertili zation lip 1.3 & 17 ,~vg. Cks. 1,5,9 Corn 3.5 foot row No N Corn and peanuts alternate row No N Corn and poanuts alternate row 36# N Cotbn No N Cotton ~o N Cotton 36# N LJJ 1IT Cotton 3UTi'·· 4 6 7 Corn and pe l1 nuts al torn!'.te rm.J No N Corn and poanuts alternate row ;6# N Cotton 36#N Cotton 36# N Cotton No N Corn and velvet beans alternate row 36# N Corn and velvet beans alternate row No N 10 11 Corn B.5 foot row velvet beans , , SArno row 'No N Cotton No N Corn 3.5 foot row velvet beans same rOl-l 36#NCott.:m 36# N Corn 3.5 foot row velvet beans same row No N Cotton 36# N Corn 7 foot row crotalnria B. C. at last cultivation '36#~~ Corn 3.5 foot row 36# N Corn 7' ~ 12 14 15 16 Cotton 36# N Cotton 36# N Cotton No N crotalaria B, C. at last Oultivation No N Crops are in a 2 year rotation of cotton and corn. of 0-8-4 to cotton. None to the corn. All plots receivG 600 Ibs. To.blc 89F Hothods of planting Summer Legumes in Corn Wirograss Substation 1939-45 Plot No. .---. Corn Yields In bushel s ~or acre 1939 : 1940 : 1941 1942 : 1943 : 1944 : 1945 : 7 ye pr o.verage ;_~ 8.9 1,5,9, 7.2 '16.'2 13, & 17 :iVg. Oks. 2 3 4 6 7 8 10 11 12 8.5 11.8 11.2 14.3 11.2 6.4 , 13.2 11.0 27.1 4.9 , 13.6 8.9 22.4 4.5 , 16.7 0.9 9.9 8.9 16.9 10.0 14.9 8.2 7.9 9.8 20.2 14.5 21.9 2.5.3 '1.'1,"l.. 6.5 24.0 9.4 19.1 12.0 14.9 5.9 5.3 1.4 4.4 3.Q 26.8 40.8 2lh 9.9 9.0 6.6 9.5 6.9 7.6 9.4 14.7 13.9 16.8 17.6 9.2 12.8 10.5 11.6 5.2 5.1 5.3 10.8 9.7 19.6 29.4 ~S.2 9.1 17.1 .. 8.5 22.4 15·4 2.4 7.4 22.9 9.3 28.3 3'2..5"1.'1.4 CJ.4 '14.9 9.0 5.6 7.3 17.0 10.3 21.9 29.6 17.5 4.3 13.2 16.3 29.7 8.0 13.5 13.1 2.7.3 2.3.4 37.9 ~dOn 14 'l.S ~ '!i, Clo .. '1.Q.4 '1.q..J .. \.'11 1.6 .. 2- Table 89G Method of PlantinG Summer Legumes in Corn __ i.Jiregrass Substatiol) 1939-45 Plot No. Cotton Yield -Pounds ~or acro : 1939 : 1940 : 1941 : 1942 : 1943 : 1944 : 1945 : 7 year flvg • . ,:.vg\;eks 1,5,9,13 and 17 , 2 3 4 6 7 8 10 11 12 14 15 16 440 ?47 844 765 686 531 488 549 1055 833 990 909 689 643 224 1814 1292 1316 1258 10261/ 87a1/ 1276 1332 1611 1485 1375 ~hese 650 880 1028 979 941 929 686 810 481 551 1037 981 1006 898 707 904 1055 1593 1323 1356 1537 1031 759 720 961 839 981 963 817 817 1116 105) 654 916 945 911 977 898 686 790 972 967 S37 647 785 110; 1013 1038 10a~ 777 569 965 959 1357 1211 862 1136 1791 1656 1444 "93 1191 1121 1163 1049 1163 1202 1222 1222 ' 115~ 1232 1212 1026 ' 1503 1231 952 232 929 1/ Lightning struck two plots plus plot # 9 ( in avg. of checks) Method of Planting Summer Legumes in Corn Ta.ble 89H Hiregrass Substation 1939-45 Plot No.: Crop ,: S'L1:':'1'nor Le~(~~me Yield : Seed or Green Wt.: - _ Se c~!:::ljr Gr'j-;:D li~::-:i'!Lf:;'ll.l.pdsLJcre 1939 : 19ftJ 1941 19Lt 2 J. ':'9 43-l~A 2 _ ._---, : 7 jrr : avcr19A2 age 593 485 631 439 476 1140 1304 453 939 858 769 827 778 1212 1284 1274 1139 1325 5894 6348 Dry peanuts (seed) 1420 1214 Dry peanuts (soed) 1169 996 850 901 841 962 1738 1721 1873 1917 2374 2685 2818 899 890 906 721 2646 2287 2897 2919 2929 2396 3703 535 519 494 45~ 497 423 384 397 671 1025 767 708 831 3 4 6 7 8 10 11 12 14 16 Dry peanuts (secd) 1319 1214 Dry peanuts (seed) 1473 Dry velvet beans 992 1008 1043 886 368 ·377 466 17097 918 888 858' 875 900 1014 821 740 858 51113 5205 Dry velvet beans Dry velvet benns Dry velvet beans Dry velvet benns Crota1aria (G. l,;Jt.) Crota1a:ria (G. wt.) 11 0 11 o 13961 11 o 14309 18404 110 D. S"tu:rkio 112 Conclusions for first 6 ye~rs (1933-1938) Tho Summor legume in corn reduced the yield of corn approximatoly 4 bushels except when crot~laria was sown b~oadcast at the last cultivation. The Summer legume in corn prevented any increase In yield of corn from winter legumes plowed - under or nitrogen applied a.s [t side dressing ( Plots 3 & 6). The Summer legumes increased the yield of cottonapproximatoly GO pounds per acre on the average. any other legume. Last 7 years ( 1939-1945 ) The Summor legume in corn had very little effect on the yield of corn when no nitrog~n w~s Crotnla:da gave a larger increase in cotton yield than applied to the corn. Hhen nitrogen \<}as applied to the corn tho summer legume prevented any increase in the corn yield from the nitrogon except when the summor logume was planter' at the last cuI ti vation of tho corn. Evon whon planted this late tho summer legume reduced the increaso from nitrogennpproximately ono half. (soe plots 14 and 15). The summer logume increased the yield of cotton awroximntoly 200 lbs. per acre. Summer 1egumos should not be planted in corn when tho possible yiold is If the yield potential is loss than 20 bushels, 20 or more bushels. per acre. the value of the summer logume will probably offset tho loss ( if any ) in corn. D. G. Sturk!bo 113 The Yields of Grops in_~ethod of Planting Summer Legumes in Corn - Experimentll at Prattville Field Tnble 90A 13 year average (1931-1943) Treatmont Plot No. Avg~eks. Corn Cotton • . W G. Leg. Lbs, - Bu. Corn-3.5' ro~ Lbs, 582 1002 959 610 1268 823 985 1177 wt. . Summer : Seed .' G. Wt. Legume Lbs. : Lbs. 7378 6936 228 1,5,9,13 & 17 2 12.5 11,a. 13.2 13.9 31.7 Corn & Soyboans Sronc ro~ Corn and soybeans alternate ro~ Corn 7.0' row Corn 36/;1 N Vetch - Corn Corn &. CO'lrlpot'\s Alternate row Corn 8~ velvet beans a1ternato row Vetch corn and soybeans same row~ Corn and Crota1aria B. C. Corn and poanuts alternate row Corn and crota1aria alternate row Corn and crota1nria same row 3 4 6 7 33.5 8.8~· 9239 8126 12185 9391 7792 5754 792 1038 192 10 11 12 8:'0 25.5 18.5 1113 924 812 186 14 15 1234~/ 7843 7331 13.6 13.0 925 894 354 5.9 16 17 Tho crops arc in a 2 yOQr rotation of corn and cotton. The fertilizer consists of 600/;1 of Q-10-4 applied to cotton except plot 6 which gots 6-10-4 to cotton and 6-0-0 to corn. ~/ 12 'J,?fJ.r avcro..go pe o..nuts - crotn1arie:. on plot 14 in 1931. r • D. G. Sturkie 114 Ta.b1e 90B The ~ield of 6rops in Hethod of Pln.nting Legumes in Corn ;';;xperj.mont et Prattville Field Treatment1/ 18!! N· Corn 3.5 1 tow . · -_._ -----.!---!_-_. Avg. 20.1 eks. 1,5,9 13 & 17 2 3 4 6 7 u ~ :Plot: 11 :£:oar average 1944,-5£.: Corn Cotton H. Leg :No. Lbs. G. Wt. Bu. • Lbs. ..!.. · Summer Legumes Seed G. 1'It. Lbs, Lbs . t 921 181.! N Corn and Soybor.ns alternate row Q1NCorn soybeans alt. row 18# N Corn 7' row 36h!NCorn 3.5' row 24.7 '1 4.9 21.2 34.6 45.6 10.5 11.5 34.1 25.3 9.8 30.3 1287 1286 898 1249 1220 1255 1322 1317 1274 1091 1246 1453 1421814428 6219 6440 174 198 OIl N Vetch, corn 3.5' row Corn and cowpeas alt. r01.JS all N 8728 8795 708 714 246 OlIN Corn and velvet boans alternate row O(,! N Vetch corn soybeans 10 11 12 alternate row ¢lr~ N 6790 355(J Corn 7 1 rows crotalaria 1402 2700 3551 736 B. C. ot N corn, peanuts alternate rtlW 14 15 18(,1 Ncorn 71 ·roVI crotalnria B. C. 0(/ N corn 7' row crotalaria B. C. 16 25.1 1/ 2 yo:-·r rotation of cotton and corn rotntion receives 600(-,1 0-8-4 per, acre all to cotton except on plots 7 and 11 VIhore 1/2 is to cotton and 1/2 to winter legume. Corn receive amount N indicated and all cotton plots get 18# N to cotton except plots 6 and 16 vJhich got 36 1.1 N. D. G. Sturkie (Conclusions on B.1.ck) ' l15A Conclusions from Summer Legumes in Corn Experiment Prattville 1931-43 Results 1. 2. 3. 4. 5. 6. 7. 8. 9. 3.5 ft. row Be 7 ft. row of corn made same yield 36} N. increased corn yield 19.2 bu. Votch increased corn yield 21.0 bu. , SoyborulS in corn l[Ioduced the increase in yield from vetch 8 bu. :.11 summer ler'umes except crotolaria reduced tho yiold of corn approximtoly 1 - 4 bu. Crota1aria incrensod tho Yield of corn 6 ·bu. when broadcast and 1 bu • . when in al ternt"'te rovIS'. 36;;t N. increased cotton yield 658 1bs. Votch residuo incre:".sed cotten yield 213 lbs. Summer legumes in corn increasod cotton yield by 202 lbs. in case of peanuts, 567 lbs. in c,~so of velvet beans. The average increase from all summer legumes was 350 1bs. The residue of vetch and soyboans increased tho yield of cotton 503 1bs • . 1944-54 Resumts. 10. 1. 2. 3.5 ft. row & 7 ft. rm·} made same yield. 36(/ N increased the yield 14.5 bu. over 18# N. Vetch increased the yield 25.5 bu over 18# N. The value of l8t Ncou1d not be determined. Soybeans in corn reduced tho incre'a se in yield from votch 11.5 bu. ) 3. 4. 5. 6. ' Tho ~Tield of corn was increased by summer legumes when 18 Ibs. of N 'Was applied. The increase wns from 4-10 bu. depending on tho legume. 7. 8. Vetch residue increased cotton yield 299 pounds. 36(/ N increased the yield of cotton 323 Ibs. above that made with 1G// N. Summer legumes in corn increased cotton yield approximat(l).l y 318 lbs. on 9. 10. 11, the average. There was not a groat donl of differonce in the increase from various summer legumes. Soybea.ns in corn follo"Jj.ng vetch inm'eased the yield of c.o tton 97 Ibs. 115B D. G. B+.urk!4. Method of PlaIlting, Summer Legumes in Corn Table 911.. Tennessee Vnlley ~bstation 1931-38 ---------~~--~~~------~~~----~--~~----------------------------Plot : : Cropping Sequence and Nitrogen Treatment No. ,__________________________________________________.______________________ Ave; Check 1,5,9,13,17 ,.., '" 3 6 7 $ 4 10 11 12 14 15 16 Corn - Cot ton No N]/ Corn and Soybean snmorow Cotton No N Corn and Soybean alternate row. Cotton No N Corn 7 ft. row Cotton No N Corn 36# N Cotton 36# N Corn Cotton Vetch No N~ Corn Cowpeas Altern2te row Cotton No N Corn and Velvet Boans alternate ro~ Cotton No N . ~/ Corn and Soybeans same row Cotton Vetch No ~ Corn and Crotalnria B. C. at last cultivation 7 foot row Cotton No N Corn and Peanuts alternate row Cotton No N Corn and Crotalnria alternate row Cotton No N Corn and Crottllaria same row Cotton No N All corn rows 3,55feet unless otherwise shown. All plots receive 600# 0-10-4 per acre applied to the cotton except plots 7 and 11. On plots 7 and 11, 1/2 is applied to the cotton and 1/2 to no vetch. The crops are grown in a 2 yenr rotation of cotton-corn. II Vetch on all plots except 6, 7, and 11 in 1932 and 1933. ~I Plots 7 and 11 had vetch 1934-1936. Vetch discontinued after 1936. Method of Planting Summer Legume in Corn ----.- . Plot No. Table 91B 1931 1932 Tennessee Valley Substation 1933 193~ 1935 1936 rlve; Checks 42.6 1,5,9,13,17 231.3 :3 27.1 33.1 1+ 6 46.1 41.4 7 8 29.8 10 25.3 11 32.7 12 43.1 14 39.0 15 36.4 16 42.4 . -----52.0 36.4 .3l~7 Yield per acre of Corn in Butlhe:J-s 44.7 25.9 25;5 22.7 ·42.4 42.5 26.1 33. 8 23.4 17.1 33.2 35.4 38.3 22.4 15.1 24.$ 32.3 21.0 35.5 36.4 24.7 17.1 11.7 25.2 33.0 23.6 11.7 13.3 $.5 22.2 15.3 15.$ 24.3 35.2 29,8 29~1 . 1937 ' : 1938: 8 Yr. Ave. • 191931 :~ 24.0 19.4 16.6 27 •.3 40.4 29.4 16.2 19.4 17.0 24.9 1$.5 17.8 ,26.. 7 26.1 35.4 27.6 26~4 25.9 23a 29'01 .10.9 44.4£:;/' 3 " 1 ,-.,.-+ 32 •. (j;;;,' .J.' 3 . 0 . 23.5 25.0 a5~1 55.3 50.9 34.5 45.5 37.0 51.6 45.$ 42.4 49.0 26~1 37.1 37.4 35.6 37.2 45.4 31.5 47.7 45.ih 35.9 22.3 40.8 33.1 30,5 32.0 35,0 6: 2$.1- 28.2 33.5 34.~ 22,7 28~6 20~9 18.22/23.~ 29~8 23,5 35.3 11 ?:/ Corn on plot 6 had 36(.1 Nitrogen. Corn on plots 7 and 11 had vetch turned under ., 1~36, . until 1936 no vetch since D. G. Sturkie 11() Plot No. ... . 19.31 • 19.32 . : • • • 19.38 • t.ve. ~ Yr. • . 1931...1938 1200 1, 5, 9, 1.3 . 17 :. ve. Cks. 1470 2 1420 3 1359 1444 ~J/ 1523 7 1537 1) 1402 10 1442 11 1483 12 1460 15 16 14 1150 1204 1368 1246 1575 1172 1305 1282 1.381 1217 14~ ~ 1226 1480 1.312 1478 1244 1480 1767 1683 1535 1789 1436 2000 1862 1711 1665 1626 1810 1609 1030 888 1169 1104 116.3 962 11.32 1042 124.3 999 1101 1215 1258 901 923 955 878 928 900 928 1001 956 917 951 872 816 1188 1496 1463 1305 1451 1198 1.384 1344 1299 1232 1.37.3 1491 1384 1278 1415 1411 1232 1520 1307 1486 1562 1514 1518 1.385 14.30 1259 1122 1558 1491 1226 1378 1142 1350 1434 1299 1277 1.378 1.37.3 1418 1334 1350 1246 1416 1207 it.37) 1371 1.361 1286 1.316 1373 1.30B ---11 Plot 6 receives 6-10-4, nIl others receive 0-10-4 Table 91D Method of Planting Summer Legumes in Corn at Tennessee Valley Green WElight Yields of Crop of Sununer and Pinter Legumes 1931-38 Greon Weight - Lbs!A or Dry Weight:of Seed;Lbs!A Plot No.: Legume: 1931 : 1932 : 1933 I 1934 : 19.35 J 1936 : 1937 • 1938 :~ Yr. Ave. 2 :3 S01b~ans 5175 Soybeans 13320 Soybeans (1) Vetch (3) Cowpeas 20970 Seed (dry Weight) 545 Ve1vot Benns (4) Soybeans 5670 Vetch (4) Crotalaria(4) Peanuts (4) Seed (dry 'Weight) (4) Crotalaria(4) Crotalaria(4) 4 7 8 10 11 12 14 7132 19935 5692 6970 19867 (2) 12802 6862 7786 0 1127 3443 6075 18720 14490 (5) 20295 4356 3920 13005 5490 2232 743 3330 4000 6534 1958 495 9270 4590 6643 3660 945 4005 5535 6316 4928 1466 8190 5130 6915 7875 2565 6593 2903 4832 6446 10170 11577 12994(2)* (6) 5619(5)~~ 2790 4208 9152 592 (7) 4568 658 962 (7) ~~ 23850 7965 5850 5220 6697 3321 900 5423 900 11115 1463 3240 8100 (6) 1755 1406 392 3184 1088 6390 11411(6) * 5662 7403 6272( 5) ~< 4500 3445F~ 1181 5348 7 * 292 4978 759(7) ~~ 8103 (7) * ;111(6) ~~ 15 16 (1) . (2) (3) 724 1573 21825 11318 . 533:! (4' 461 405 4748 . 7425 265$ ~8'10 902, ~;, (6 ~$ D. G. St'll1'kie Destroyed by rabbits Seed yield not given No vetch planted as test w started in spring of 1931 as No yields given No Soybeans planted after 1933 No vetch planted after 1936 Killed by early frost - no yields given Figures in Pnronthea1ses () tcn1O'Qe§ oy im n storisk iridH~f.i.tfe ·: lhe n"llmbor of yG~rs Qvor~ged. Tr.8Y are not footnotes. ll? Ta.b~e 91E Method or Planting Suomer Legunas in Corn at Tennessee Valley Gubstatign 1939~ Cropping Sequence and N itrogen Treatment Corn__ Corn Corn and soybeans samo row Corn and soybeans alternate row Corn 7 foot row Corn 36# N Cotton Cotton No N Cotton No N Cotton No N Cotton No N Cotton 36# N Cotton No N Cotton No N Cotton No N Cotton No N 1, 5, 9, 13 1.ve • and 17 Cks. 2 3 4 6 7 Corn and cowpeas B. C. at last bultivation 7 foot row Corn and 6owpeos alternate row Corn and velvet beans alternate row Corn nnd soybeans same row 36 # N 8 10 11 12 Corn and crotalnria B. C. at last cultivation Cotton No N 7 foot row Corn and poanuts al tcrn1:'.te r01·1S 15 16 Corn and crotalaria alternate rows Corn and crota1aria same row - Cotton No N Cotton No N t Il corn rows-are 3.5 feet unless otherwise shown. nIl plots receive 600# 0-8-4 par acre applied to the cotton. No nitrogen used except as shown. Corn receives no f ertilizer except nitrogen on plot 6 and 11. The crops are grown in a 2 ye~r rotation of cotton-corn. Table 91F Me~hod of Planting Summer Legumes in Corn at Tennesseo Valley SUbstation :- ~) - ( Plot No. 1939 1'..Vf; _ Cles . ~ Yield?!. of Corn in Bushels 1940 1941 : 1942 1943 s 1944 . -1945 : 7 yr. Ave :1939-45 20.9 18.2 12.2 22.6 42.8 24.1 14.0 25.9 15.6 1':./ ?']-'"( ' . 2 3 4 6 7 8 10 11 • ,ro 3 1., ),') , t04' and 10 Ibs. IvInS04 per ncr·) . y' Vetch yi81ds are for 1950 only. To determine effect of rotations soe o.veragos 1949-54 in record books as a threo year av orage of a two year rotation will cont~in half the figures that are a single year's yield. 21 Conclu 3ions: Nonroevillo Field Respons e from add od N on corn small untii 1951 when there was a response to 36 lb. N. Cotton r esponded to added N beginning in 1950 • . There was 110 yield incro'nse from nitrogen in addition to vetch. ~linor elem s h3d little effect on corn yields. Car! ent and cotton yieldGd higher in rotations than when grown continuously. 121A Sand HountainSubstation There was a response to 36 lb. N beginning the first year of the experiment though plots with no nitrogen producedl05 bu. Cotton yields were increased by added ni trogen beginning in 1952. 1tThen yields of corn were in the vicinity of 100 bu. thero was an increase from nitrogen in addition to vetch, but when yields were lower there was no return from nitrogen in addition to vetch even though vetch yields were not satisfactory. There wag a small increase from rotations on both cotton and corn. Hinor clements had little or no effect on corn yields. Prattville Corn responded to added nitrogen beginning in 1952. Cotton rosponded to 36 lb. N beginning in 1950. There was no responso to nitrogen in addition to vetch on corn. There was little or no effect of minor clements on corn yields. Cotton yields wore increased by rotation but thore was no effect on corn yields. C.E. Scarsbrook 121B \ '. Tabl o 93A Sources of Nitrogen for Oats on Sumter Soil Three Year Averages 1952-54 Black Belt : Source of nitrogen!! Sodium nitrate Ammonium nitrate Urea Ammonium sulfate Oalcium nitrate Forage produced before March 1 Lb. per acre · • · Grain Bu. per acre 1147 1049 1045 913 1033 27.8 27.5 26.7 25.3 25.9 1/ All plots received 0-16-8 at rate of 1000 lb. per acre. Forty lb. of N applied before planting and 40 lb. after the last clipping around March 1. Conclusions Results are as yet inconclusive. Table 938 Corn 4~ftor Kudzu Monroeville Field 1942-53 j?lot: No 1 Trontnont Kudzu 1933-52 Kudzu 1933-52 Kudzu 1933-52 Kudzu 1933-44 Kudzu 1933-44 Kudzu 1933-41 Corn 1953 Corn 1953 Corn 1953 Corn 1945-53 Corn 1945-53 Corn 1942-53 l'.ver l'1.ge corn yield in bushols l2Qr o:.:: r..o,: ______ . : .c.:;:. : 51.0 49.8 2 3 4 5 6 50.4 39.3 37.711 37.221 Kudzu vl9.S cut f or hay 300 Ibs. 18% superphosphate and 75 Ibs. of 60% nmriate applied in all plots Wa~?orn was grown. 11 No records in 1947 so is 8 year average g/ No records in 1947 so is 11 yr. average CONCL US IONS: None C. E. Scarsbrook 122 Table 94 Production of A+falfa Follow.ing Winter Legumes blexandria Field After the first cutting in This alfalfA WRS planted in the fall of 1945. 1947, it was docided to chock the yields on some of the old winter legume plots. This tier had beon in a winter legume test from 1933-45. : The nren ~AS fertilized "lith 200;i! of 50% muriato of potash nnd 3O/f of borax after the second cutting. Plot: No. 1 Previous Crop Grown No Pounds of .nfnlfq Ha~ 12er Aero. Total Cutting II : Cutting III: Cutting IV logume 1440 1440 1190 1190 ·1050 700 3630 3300 4 6 Hairy Vetch No legume Crlfunson Clover Lustrian Winter Poas No crop 1440 21,00 1760 1769 6-16-47 CONCLUSION S: 1;60 2040 1530 1020 7-22-47 1175 1750 375 3975 6190 4165 3655 7 9 10 Dnte of Cutting 875 G-22-47 In 194G it bocamo npPRront thRt the alfalfa was f ailing in such scattered areas that thore was no rolation botwoon tho past treatment and crop failure. This area vIaS fertiliz e'd with 100C¥" of 0-14-10. fJ'ter cutting for 3 j'OGrs tho stand was so thinned that after tho first cutting in 1949, tho tier vJaS turnod Qnd p10.nted to grain slmI'ghu..rn in July. D. G. Sturkie 123 Tnbla 95A The Yield of Sweet Potatoes, Corn, Cotton, Crotala~i8 and ~!inter Legumes in Sweet Potato Cropping System Experiment at Brewton -----------------------------------------------,------------------------------Sweet Pot. Sweet Potatoes 800# 6-10-6 Continuously 811. & lOB 8909 ----------------------------Sweet Potatoes 800# 0-10-6 Winter legume Continuously 2 Year Rotntion Cotton 60Q? 6-10-6 Swect Potatoes 8GQ# 6-10-6 10A .& 8B 2B, 3B 1;11. 16A Sweet Pot. Winter Leg. Sweet Pot Cotton Sweet Pot Cotton Winter Leg. Sweet Pot. Corn Sweet Pot Corn Crotalaria 5466 47321/ 10268 1037 8406 10721 / 549810203 29.5 9800 35.8 / 74451 • Cropping System and Fertilizer Treatment Plot : Crop :'9 year ave • • ,_ _ _ _,_ _ _ _ _ _ _ _ _ _ _ _ _--:A:.;,v9r Etge____ yield 1~-52 Corn and Crotalaria 600# 0-10-6 Continuously 1,5,9 Corn 28.7, / (to corn only) 13 & 17 Crotalaria 945911 ,------ ,.~-- ----,----------------- 2 Yonr Rotation Cotton 60~f- 6-10-6--1 'Jinter legume Sweet Potatoes 800# 0-10-6 2 ye~r 211. 3A 15B,16B 4A 4E l4A,14B 611.,711. . lIB, 12B Rotation corn 600# 6-10-6 Sweet Potatoes 800# 6~10-6 2 year Rotation corn and crotalaria 600# Svloet Potatoes 8001,1 3-10-6 6-10-6 2 year Rotation corn and crotalaria 600# 6-10-6 SHeet Potatoes 800# G-10-6 17 6B 7E 1111. 1211. Sweet Pot. 6823 Corn 33.4 / Crotalaria_ 75061 ___ 8 year average CONCLUSIONS: The test was designed mainly for sweet potatoes. There was little if any effect on corn or cotton. Sweet potatoes produced low yields following winter legumes. The largest yields were produced in a rotation of sweet potatoes with cotton or corn when both crops received commercial nitrogen. Crotalaria grown in corn was of little if any value for sweet potatoos prawn next year. D. G. Sturkie 124, T2blo 96B Effect of ' Hogging 'and Harvesting Peanuts on : Ootton~ Corn ~d Peanut Yields - Wiregrass Substation - Tier 25- 1940-43 • Plot No. 1 2 2 Yr. rotation 3 Pe ~muts Cropping System and Ferti1izerll Check - peanuts hogged cotton - 600# 6-8-12 hogged Yio1d :4 yr Avg. 1940-43 1911 1565 1980 1906 1200 1837 30.5 1939 1871 31.6 1716 26.8 1749 1732 1532 1522 4 Check - Peanuts hogged Cotton-600# 6-8-12 Peanuts hogged Cern 2 yr. rotnti on Peanuts hogged S 6 2 yr. rotation 9 Check - Peanuts hogged Corn plus 1$# N 2 yr. rotation Peanuts hogged Corn 10 11 12 3 yr. rotati on 13 14 15 2 yr. rotation Pe,1nuts hogged ' Peanuts hogged -----------------------------~--.------------ Peanuts hogged Peanuts dug Check- Peanuts hogged 16 17 '-----------------'.~----- 1650 l/ Cotton: 1/4 N applied at planting as ' (NH4)2S04 and 3/4 N as NaN0 3 as a side dressing at first cultivati on. . Corn: All N addod as a side dressing 35 days after plnnting as NnN0 • 3 D. G. , ,turkie C 127 \ Tnb10 960 Effect of Hogging and Harvosting Pe~nuts on Cotton, Corn and Peanut Yields 1oTirograss Substation Tior 25, 1944-54 _P~l_o_t_N_o~.~ ____________~C~r~opwE~i~n~g~S~y~st~e~m~;a~n~d~Fe~r~t~i~l~i~z~o~r1I_l __________~l~l~Y~Avg. 1 ·· 2 2 yr. rotation 3 Peanuts hogged Check -Peanuts hogged 300# 0-12-12 5 1944-54 Chock - Poanuts hogged 300# 0-12-12 Cotton 6001/ 6-12-12 1217 1108 1436 1200 1031 1343 Cotton - 600# 0-12-12 2 yr. rotation Peanuts hogged Corn - 3001/ 0-12-12 2 6 7 yr. rotati on 8 Peanuts hogged 300# 0-12-12 Check - Peanuts hogged 3001/ 0-12-1~ 1364 1146 31.9 9 10 Corn 300# 6-12-12 2 yr. rotntion Pe~nuts 11 12 13 , . 14 15 hogged 30Ql,~ 0-12-12 30.4 1296 1509 952 1017 1051 Corn - 300,# 0-12-12 3 ~f:.. rotation Pe~nuts hogged 30~1 0-12-12 Peanuts hogged 306# 0-12-12 Peanuts hogged 300# ill-12-12 2 yr. rotati on Peanuts har~ested 3n O# 0-12-12 17 Check - Feanuts hogged 300# 0-12-12 11 Cotton: 1/4 N as (NH4 )2S0 4 at planting and 3/4 N as NaN03 as a side dressing at first cultivation. Corn: All N applied as NaN03 as aade dressing 35 days after planting. CONCLUSIONS: , ?c,gging pG(Ul.uts rss-Illted in higher yields of cotton and · 6orll,tttoii ysor.e obtained when the peanuts were harvested D. G. Sturkie .. 12.8 H1.0.!e'1bLJ Ij!Tect of' Hogging and Harvesting Peanuts on Cotton, Corn, and Pennut Yields 1944-1954 l~Tiregrtl.ss Substation Tier 24 ).,,/ Flot N.o. s 1 Cropping System & Fertilizer Dug Peanuts Blue Lupine .2 yr.-rotation 11 Ye'1r Av. '44-54 115§':!/ 402~ 300# 0-12-12 2 3 Cotton 600# 6-12-12 Peanuts Harvested Blue Lupine dug 843 161 55Jl!;k/ 1190 4; / 4 Check - Pe~nuts 300# 0-12-12 Blue Lupine 3619~/ 5 2 yr. rotation 6 Cotton 600# 6-12-12 2nd peanut hay Peanuts harvested Blue Lupine Corn 300# 12-12-12 31.9 Peenuts dug - 300# 0-+2-12 1697 Blue Lupine 5129~/ ? 8 2 Yr. Rotation Check - peanuts dug Blue Lupine 3()0# 0-12-12 115~ ') / 307tU.1 10 11 2 yr. rotation Corn - 300# 12-12-12 plus 1000# peanut hay Peanuts dug - 300# 0-12-12 Blue Lupine Corn - 300# 0-12-12 Peanuts dug - 300# Q-12-12 Blue Lupine Peanuts hogged - 300# 0-12-12 300(1 0-12..12 4124f*/ 32 .. 6 165~ 1/ -----------------------------------------------,------------------------12 13 14 30.0 1283 I 3 yr rotb.tionY 4005 w / 1384 1112 1)0) 22602/ 77fn6'Jj 1797 15 16 17 Pennuts hogged Continuously Peanuts dug continuously Blue Lupine Check Peanuts Dug Blue Lupine )00# 0-12-12 )nO# 0-12-12 11 Cotton: 1/4 N applied at planting as (NH4)2S04 and 3/4 as a side drossing at first cultivation as NaNO) Corn I All N added as a side dressing )5 days after planting as NnN0 • 3 ~/ Corn followins ' hogged peanuts, harvested peanuts following corn, hogged peanuts following harvested peanuts , blue lupine following hnrvested peanuts. 1I ~ 8 year Average of 3 crops. 8 ye~r Average of 4 crops • ~2.9 .n.. G. S"c.u:r'de Tc.ble 97Tho Results of tho Experiment - Hogging 1Is Digging Peanuts at Hirogrnss 1932-1952 Yields of Cotton, Corn, Poanuts and Vetdh 7 Yr.llvg.:14 Yr.llvg:21 Yr. livg. ropping .systo~, ~nd li.'SJrti1izer Troatmon~1-.; Tior:Plot: 1932-3G :1939-52 :1932-52 c'.-·_ -·_ : Continuous Vetch Continuous Continuous Continuous Continuous Cont'inuous Continuous Continuous poanut s 'hogged no fort. ", '' poanuts dug no fort. ponnuts dug no fort cotton 60o,f 6-10-411 Cotton 60~f, 6-10-4 corn no fcrt. Corn no fort. corn 60Q;! 6-G-4 (beginning 1939) 33 34 34 35 1 2 2 2 1G74 524zW l-554 1533 1300 1236 16.8 19.4 496 1136 10.0 32.2 G49 1191 12.2 34 35 34 35 35 33 33 1 1 3 3 3' 2 yr rotntion corn no fort. ~/ poanuts hogged no fort.2J 3 & J2.1 6 1813 ' 313.3 1888 36.2 IG63 2 yr. rotation corn 60of,! 0-8-4 (beginning 1939) 35 Poanuts dug 6G~! -0-8-4 35 2 Yr rotntion cotton 7 & 8 21.0 1912 60(¥,i -------,-----------,----------------------------------21 1210 6-10-4 2 & 1452 33 33 Poanuts hoggod no f ort. 2 yr. rotation cotton 600# 6-G-4(boginning 5 1968 1883 1939) Peanuts dug 6GO# 0-8-4 2 yr. rotntion cotton 600# 6-8-8 (boginning 34 34 7 Be u (j. 9G3 1839 1939) Poanuts dug 6GO# 0-8-8 2 yr. rotation cotton 60Of} 6-10-4 35 35 34 34 35 35 33 33 33 1& 2 762 1656 ----------~------------------.-- Corn no f ort. 2 yr rotation cotton 600(,[ 6-10-4 Corn no f ort. 7 & 1533 G 26.0 7 I} - - - -- ------,- -- -------, 1424 27.4 1142 1(182 37.7 N yr rotntion cotton 600(,[ 6-10-411 peanuts hoggod no fort. corn no fort. 3 ~~ rota.tion cotton 6GG/f 6-10-41/ , pe ~nuts dug, no fort. vetch no fert. corn no fort. 3 yr rotr.ti0n cotton 60O!t: 6.:.10-4iJ 1505 7 & 1G61 3 35.4 4 1263 1875 36.9 900 1691 34 34 34 34 4 1274 5 & 1G7~t./ 6 566~ 32.5 714 1600 17.7 22.6 1049 1718 -------------------peanuts dug no fort corn no f ort. 35 35 4 5& 1246 1841 35 6 '29 .. 1 950 1655 23.3 25.3 Footnote s on Back 130A ChQ ngod to 60~1 6-8-4 beginninp in 1939. Beginning in 1941 changed to corn 600# 0-8-4. Peanuts hogged 600# 0-8-4 • . Beginning in 1939 chnnged to cotton 60Q§ 0-8-4. Peenuts hogged, no fertilizer. Beginning in 1939 ch~nged to cotton 600# 6-8-12 peanuts dug no fertilizer. Corn no fertilizer. 13 end 20 ye ar avernges. No peanuts on plot in 1952. Plot made 4.1 bu. per ncre of corn. 3 year average vetch grown only in 1933, 1934 nnd 1935. CONCLUSIONS: POffi1utS w ere grown continuously on tho sarne are~ and hoggod each year and wore mq,kinr a good yield nt the end of '21 years even though no fert~lizer was applied during this time. Dir ging peanuts continuously rosulted in low yield of peanuts in a fow yonrs when no fertilizorwas applied. l-Jhon pe8.nutsarc to be harvosted, they should be grown in a rotation with other crops. A good rotation was. cotton (well fertilized) peanuts - corn. Hogping peanuts produced larp.er yields "than did digging peanuts ' even in a 6 year rotation. ~ good 3 year rotation was cotton - (woll fertilized) peanuts (hogged off) corn. This system avoraged approximately 12 bushels more corn per acre, 200 lbs. more cotton Q 150 Ibs. more peanuts than when tho peanuts were dug. nd D. G. Sturkie 130B Tc.b1c 98 Soil Improving Crops and H1."rvestcd Poa.nuts Experiment Hircgrass Substn.tion rtnd Rrowtttm Experiment Fio1d, 1940-54 -------- . --.....--...................................--..........--.....--..... Plots: Brewtoa 15 Y f1r nveraee yio1ds of po.n nuts, cotton, vetch and corn. O ------~-- 2-yoC'.r rotation 600// 6-8-12 to cotton 1;2,8, 1083 o Fertilizer Peanuts9,16 & 1124 17 2-YQa.r Dotation 600#, 6-4-6 · Cottnn 3 924 1130 102~ · 300 0-8-12 Vetch 4 664111 8772g/ 7707 o Fertilizer Peanuts 1233 1818 1526 3-year rotation 600(1 6-8-12 Cotton 5 1227,/ 1290 1259 o Fertiiizer Vetch 6 716~ 10352~/ 8756 o Fertilizer. Peanuts & 1145 1852 1499 n 911. 300# 0-8-12 Vetch "Ie 7 o::at1 796~ / 792G o Fertili~z~e~r--~C~o~rn~____,~~~3~8~.4~..........~~~G~.75--.....--~38~.5~.------· 3-yo".r rotation 600# 6-8-12 Cotton 10 1150 1286 1218 300# 0-8-12 Vetch 11 862i!1 9921g/ 9271 o Fertilizer Peanuts & 1126 1712 1419 o Fertilizer Corn 12 21.7 34.8 28 .2 3-ye ar rotation 600# 6-$-12 Cotton 13 139?,/ 1410 ~02 300# 0-8-12 Votch 14 902~ 1033~ 9678 o Fe rtilizer Hogged Peanuts & 1375 1740 1558 o Fertilizer Corn 15 35.0 4@.7 33;4 vlirogrnss: . riVorA .ge 1111 1097 1625 1375 .............................. ------- 11 Z1 1L:. ye ,~.r :verago . 12 yenr average. No ,,,intor crop in 1940' No vlinter crop in 1944, 1941, 1942 CONCLUSIONS: l. vlinter l egume turned under ahC!ld of peanuts. approxima.ta1y 150 Ibs. per acre. mcreased the yield of peanuts " The grc : t cst eff ect of c,: soil i m proving crop was obtained in c. 3-ye:-tr rotc.tion of cotton, winter legume, pe,':1uts, corn. It is prol5ab1e thrlt a better rotation .. " H ouldhave boen cotton, 'peanuts, 'loJintor legume, corn. H o~gi ng poanut s r esulted in l ar ger yi e lds of pcnnuts,corn and Gatton than digp-ing the~T peanuts vlhon D. G. Stumkie were grmm in a 3-yc" r rot ntion of cotton, Vetch, peanuts, g~rn. 131 \ Table 99 Adaptation of Crota1aria as a Volunteer Crop Yields of Corn and Cotton :! : : l/:Monroe-:wirE}- 4 I :sTenn. V. :Sand Ht :l1ixJlgr'lsgrass :5Jr¥r.4vg:J4yr.Ivg:14yr.A~5 yr.Avg. Plot: 1935-39:1935-49:1935-48:1935-39 : Fertilizer and Cropping System ~ Crop Corn Cotton Corn Yr. Rot. cotton 600# 0~10-4 Corn no Fert. & 16 1,9,8 29.7 1157 2 & 29.7 1285 10.7 787 13.4 18~2 513 939 24~5 2 yr Rot cotton 6GOf 0-10-4 Corn and Vo1unteor Cro tal aria-n~ 21.7 24.8 . fsrt . C a:laria 10 r'Ot Cotton Corn 7336 1408 21.2 6734 1341 33.2 5631 · 1365 43.1 5304 1346 21.6 7846 1682 30.6 6078 33.9 7001 Soo6 924 27.0 8289 1036 30,9 7188 991 32.7 6200 946 23.5 8474 1145 25.9 6228 27.4 6561 S173' 1221 24.7 7558 1155 26.3 3577 1094 25.4 3381 1067 21,5 6856 1240 15.9 5804 21.2 7525 • 2 yr. Rot. Cotton 600/1 0-10-4 Corn and Crota1aria in dri11-no fort. 3 & 28.2 1289 ~4.4 Crotn1aria 11 Cotton Gorn 4 & ----------------~-----------------,~----, . 2 yr Rot. cotton 600// 0-10-4 Corn and Crota1aria 18# N Crota1aria 12 Cotton Corn CDota1aria Cotton Corn 5 1~ 1304 29.6 2 yr. Rot. cotton 600# 0-10-4 Corn and Crota1aria '36# N & l242 2 ~. Rot cotton 600# 3-10-4 Corn and Crotalaria no fert. 14 26.8 1294 30.1 Crota1aria & Cotton 15 Cant. corn and crota1aria 600# 0-10-4Corn 6 Each 4 yrs. Crota1nria Cant. corn and crota1ari,l 600# 0-10-4Corn ' 7 Each 2 years Crota1nria Cant. cctton and crota1aria 600# 0-5-2 ·' ------~------------------- 31.2 17 Cotton Crota1aria 1188 - 3152 894 547 2532 II N cotton and corn in 1940 at Sand Mountain. Plots ~planted to-Crota1uria o which w nllo1Jed to go to seed to get a supply of seed in the soil. as · CONCLUSIONS: Qro~ing of crota1ari a in corn resulted in larger yields of cotton and corn, D. G. Sturkie 132 Table 100 An experiment with volunteer crotalaria in corn with different dates of tho last cultivation at A lexandria Field 1935-38 This area (east of Tier 7) was in crotalaria variety t ests in 1933 and 1934. Corn has been grown on this area for throe years. No f ertilizer has been applied. Volunteer crotalaria or crotalaria sown at last cultivation has grown in the corn middles each year. The 1935 crop avoraged 25.6 bu. of corn per acre. A fair crop of volunteer crotalaria grew in the corn. acre. A good growth of crotalaria matured. The 1936 croparoraged 15.6 bu. of corn per In 1937 the corn averaged 34.9 bushols por acre. There was a faitly good growth of crotalaria in the corn middles but few The three year average yield of seed matured because of late cultivation of corn. corn has been 25.4 bu. per acre. The average yiold of a nearby non-fertilized plot has boen 10.7 bu while that of the nearest plots receiving 225 pounds of nitrate of soda per acre has been 27.7 bu. per acre. On March 26, 1938, 270 pounds per acre of unscarified seed were broadcast over the aroa. Corn was planted April 27 and cultivation was discontinuod on dates Plot 4 roc.e ived 225# NaNO, to corn June 8, 1938. :Dote of last cult.: Crotalaria #/A: c~Bu7A June 6 June 13 July 1 July 1 Fertiliz~r7Acre listed below. Plot No. 1 2 3 4 4500 5280 35~4 27.0 25.4 25.0 37.9 0 0 0 225# NaNe3 2526 There frost \ 'laS a good stand of crota1aria on all plots. 3 and 4 matured only on occasional plot. CONCLUSIONS: Plots 1 and 2 matured seed beforo ~)ut It waf nocessary to lay qy corn early. to produce a good crop of vmlunteer crotalaria. J D. G. Sturkie 133 Note: all plots get each year a total of 400# super and 100,-;' m uriate except Plot· 13. It prets 400fi super and 32# m uriate. ~/ ]'/ The vetch crop in Fall of 1947 received this P 8: K. All fertilizer on this plot goes to cotton. April 12, 1950 • 4000# dolomite applied west half of all plots except Plot 10 . (It was in oats.) . April 12, 1951. 4000# dolomite applied to east half of each plot except Plot 12 (it was in oats.) Plot 10 received 400o,f do1oP.1ite on the west and east half. June 12, 1951. D. G. 'Sturkie 135B Plot 12 received 4000# dolomite on east half ---thus completing the app+ication to all plots. T.. blo 103 " Old Rotation Resu1 ts 1896 - 1931 hy 6 year periods . ' . ' : . ' :Avera.g~ Plot: No. 1 Crop Vetch \ :1896-1901;190~-07;19QS-13;1914-192/:192o-Z5~;1?~/~/:lS26~31 14459 19.7 18.8 : . • • Corn 2 18.61/ 18.2 7.2 17.3 8.3 24.5 10.3 9782 18.930* Corn 15.~/ 12.0 Vetch 3 Cotton 1055 770 725 586 724 1090 13223 4 & Vetch Cotton Vetch Cotton Cotton Vetch Corn Vetch 7 985 751 786 543 772 1143 11216 5 & 9 1007 9.31 784 661 10612/ 618 721 533 1150 340 1107 498 12113 ------------------------------,-----------------------------6 M I & 4 18.0 16.82/ 14.9 5.1 14.2 27.6 10081 8 Cotton Vetch Cm'lpea Hay 845 666 687 537 566 1065 10793 2346 10 :1 Vetch 9781 Cotton 8Cl:).! 827 765 704 974 549 .. Vetch 9626 :'2 Cern 15.9~/ 16.S2 9* 26.8 15.61/ 14.4 4.2 15.2 Oats 19.~/ 18.~/ 19.6§/ 24.6 6.6 30.2 19.7 26 * 1Q..I COVlpea Hay 1424 1652 1690 13 Votch 10060 Cotton 887 668 896 60JUJ QVl n Ha __ _ ~tis . 5 year Avg. - cO'Wpeas planted in 1896~ 1/ 4 year Avg~ - cOVlpeas planted in 1896, records lost in 1900. ~ . 5 year Avg; - eaten by COVlS in 1902. !~ 4 year Avg~ - oats ruined by chicken in 1~05, no records in 1907 ~ 5 year Av~ ~ - peas instead of cotton in 1908. 5 year Avg~ - no record in 1908. ~ 2. 7 ear Avg ~ - all r ecord lost from 1916-1919. ~ 5 year Avg. - no record ' in 1925. ~ 2 year Avg. - 1923 ' - 24, first year records given for cOVlpea hay, ~ 1 year only - 1924, first year records given for cOVlpea hay. ~/ 2 year average instead of .3 as are others for this plot; no record in 1925. ~. 1 year only - 1~24; records lost for 1930 and 1922. ~ Vetch is a 5 year average - no vetch yields recorded in 1928. ~ One year only - 1915. . *}i~gU:res starTGU iJidica+,e t'm:: number of years averaged. ij D. G ~ Stu~~~e 136 Table 104 Old Rotation Results Since 1932 By 6 Yr. Periods. • . : No. 1 Plot Crop Cotton Vetc1;r 1932-37 1204 • . 1938 - 43 870 1944 - 49 574 13900Y 1950 - 55 857 10593 1684 - - -2 Cotton Vetch Cotton ---" 562 5935 1248 7656 1386 4889 1254 512 5120 26.4 4957 1249 3987 3071 6604 1349 5895 30.4 70.7 2708 418 5621 1270 ,7535 31478 40~7 $32 7108 1404 10476 1688 8))8 144.3 · 335 6200 43.8 7024 1331 6346 2592 9362 1361 7767 48~4 -9685 1653 12846 1848 12734 1613 616 ---- 3 4 & Vetch Cotton Vetch Cotton 7 5 & 9 1172 872 6352 38,6 6266 1242 4433 373511 6 Cotton --Vetch 7 Corn Vetch 8 , Cotton Vetch 9 Cowpea Hay Vetch Cotton Vetch Corn Oats Oowpea Hay 11417 33.1 12020 1682 11351 3172 12458 1727 9955 44.2 43.1 3748 - 10 11 & 12 4696 1091 5389 39.4 57.9 2285 45.5 3323 ---13 Vetch Cotton Cowpea Hay 3899 1165 3055 3691 914 3184 - ,- - 5271 '654 3126 ---------- 7772 914 2322 -7 , gl 5 ye ar averac:c; 1938-42 -(In cotton in 1943T: 2 year averar,e , 1948-49. 137 D. G. sturkie . 4 T ~b1e 105 The Yields of Cotton and Corn in Vetch Residue Experiment Auburn, Alabama 1934-1946, Inclusive Experiment #1 Plot Vetch None Vetch each year =1.2-yr. 411 1096 962 862 483 Cotton Av. Yicl4..~acre! 19..3~-46 Vetch Corn Vetch 1 2 3 4 5 7.7 4902)./ 796431 27.7 3411]/ Vetch each two years Vetch each three years None 814~/ · 21.5 23.3 9.4 5;8#1 793il/ Jj Average of 13 crops. ];/ Average of 7 crops. )) Average of 5 crops. Notes: Each plot received 400# super phosphate, 100 Ibs. of muriate, and 10 Ibs. of zinc sulfate per acre annually to cotton and corn. No fertilizer to the vetch. The crops were grown in a two-year rotation of cotton and corn. Conclusions: There was a large residual value to the vetch. The largest yields were produced when vetch was grown each year. D. G. Sturkie . 138 Tr..ble 106 The Yields of Corn in Vetch Residue Experiment Auburn, Alabama, 1947~1955 Experiment #2 The area used in Experiment #1 was used for this experiment. Beginning in 1947 the cropping system was changed to that of continuous corn. On one-half of each plot the corn received only the legume as nitrogen. On the other half it received the legume treatment and an additional 80 pounds of nitrogen from nitrate of soda. The treatments are reversed the next year. All plots received 400 pounds of superphosphate, 100 pounds of muriate and 10 pounds of zinc sulfate each year.to corn. No fertilizer to the vetch. ---------------------:_Yields, Plot 1 2 The Yield of Corn in Vetch Residue Experi m ent Vetch 9 yr. avg •• 1947-55. Inc. 80# Nitrogen No Nitrogen Vet~ Corn : Vetch: Corn 13,814 / 2 l8,53~ 3 4 5 None 49.6 -- 1/14.2 Vetch each yr. 53.8 11,70~. 52.6 Vetch each 2 yrs.53.1 l8,32~ 41.5 Vetch each 3 yrs.53.8 17,33OU 38.5 None 14.5 -- .J/ l8,45~/ 1/ Average of 9 crops. Average of 4 crops. 11 Average of 3 crops. ZI Conclusions: 1. A good crop of vetch made more corn than 80 pounds cf nitrogen from fertilizer. 2. 80 pounds 'of nitrogen as a fertilizer applied in addition to vetch produced no significant increase in the yield 6f corn. There was a marked increase in the yield of corn from the residue of vetch. the residue of vetch all plots produced the same yield. 5. 6, When corn does not follow a good crop of vetch it should receive nitrogen in the fertilizer. If the results are considered for the year (1953) producing the largest yield is the 9-year period, the a. pplica. tion of 80 pounds nitrogen in the fertilizer in :> addition to vetch produced on increase of only 10 bushels per acre, 3. 4. When 80 pounds of nitrogen was applied in addition to D.. G. Sturkie 139 The Yield of Crops in Perennial Legume Satatian Experiment _~uburn, Alabama, 1942-1950 Plo:t 1 CroQQing 1/ S,,£:stem - --3-yr.avg. : 6 yr. avg. Cr oQ Corn Corn Kudzu Kudzu Cotton Eleanuts Corn , 19~2-44 19~5- 50 Continuous corn 36# N 38.1 2902 21 21 2902 _ I 31.9 3004 _ I ~[ 4 5 7 8 9 Rotation, 3 yrs. Kudzu 6 years corn 3 years of Kudzu and 6 years of crops. ' Crops are in a three-year rotation cotton-peanuts-corn. 23. 6 / 3o .f;' / Jr 10)8 ] / 317 ::J 39.1 3004 2J 1076 996 '34,9 10C 11 12 13 14 15 16 Rctation 3 yl'S. sericea 6 yrs. Corn Corn Sericea Hay Sericea Seed Corn Cotton & Peanuts Vetch Corn Corn 4~; 1 )65CJ6; c:J/ 2617./;1 25",6 29()~/ 39.9 1184 )02 14820 Continuous Corn )6#N 3-yr. rotation of Cotton,36#N~Peanuts-yetch 32.8 1296 899 13790 Corn Continuous Corn 36#N 52.3 33.1 ----------------------------------------11 The plots in kudzu and sericea were planted to these crops in 1942, and they remained in them for three years. They were plowed up in 1945 and ether crops were planted. All plots had 54# P205 and 30# K20 per acre per year. Corn g,t 10# zinc sulfate per acre in the fer~ilizer ' ahead of planting. Fertilizer tosericea and kudzu was applied as a top dressing in the spring before grcwth began. ZI 21 kI Kudzu was cut once in June for hay. Sericea was cut once in the spring for hay at height of 12-15 inches. '~ Had 36# N in 1942, 1943, and 1944. Corn followed three years of kudzu. 2/ Sericea was cut for seed at frost in the fall. Conclusicns: There was a good response in the yield of crops following a perennial legume. In the case of kudzu" corn foll01.1ing kudzu averaged for the next six years as much as corn receiving 36# Nitrogen that did not follow kudzu. Kudzu produced a larger,increase in yield of corn than did sericea. ..,\ D.G. Sturkie 140 Table 108 The Yield of Crops in a Perennial Legume Rotation Experiment at Auburn 1951 - 1955 :Crop Previous Plot : 6 years • . 1945 - 1950 inc , 1 2 I .' /~1951 - 19551/ 'Crop .. : Crop Yield - 5 yr.• avg. s Corn Corn Cotton Peanuts Vetch Corn Cotton Peanuts Vetch Corn Corn Corn Corn Vetch Corn Cotton Peanuts Vetch Corn Vetch Corn : 1951 - 1955 32.7 Corn 36(/ N Corn 3 yr. rotation Cotton - Peanuts Corn Continuous Corn 40# N Continuous Corn 80# N 3 yr. rotation cotton 48# N Peanuts - Vetch Corn 41.8 1656 1889 17394 47.4 1810 2103 19512 55.~ 4 3 5 6 Kudzu 7 8 Kudzu Kudzu Kudzu Corn Sericea Corn 36(1 N 3 yr. iotation Cotton 48# N Peanuts-VetchCorn Continuous Corn Continuous Corn SO# N Continuous Corn Continuous Corn Vetch 9 10 11 44.3 44.7 53.4 12 1)200 47.2 lS37 lS49 14 15 16 13 3 yr. rotation Cotton 368 N P8 anut s~V~t ch-Corn 3 yr. rotation Cot ton 4811 N Peanuts - V etch Corn Continuous Corn Vetch every other yr. Corn' gets SOft-/' N year ft does not follow Vetch 13427 49.S 19300 4S.~ Corn 36(/ N Each plot receives 600ft! O-S-S annually. acre in the fertilizer each year. 1. 2. Perennial legumes i~ere Corn receives 10# zinc sulfate per CONCLUSIONS: valuable for soil building .. _.,." Rotations including legumes were valuable in soil building but the same rotation prodl.l.ced higher yields \~hen the soil Vias already at high level of fertility When it "Ja.s begun than it did if the soil Vias at a lOVl'level of' fertility. ~omparerocults on Plots 3, 4 and 5 with those on 6, 7, S @r 13, 14 & 15) Nit~gen 3. A good crop of vetch produced slightly larger from fertilizer. yi~lds of corn than did SO# of 4. Corn following soricea yielded more than corn folloViing Kudzu for the 1st 4 years after turning. 5~ The 5th year the Kudzu produced the largost yiold. gr~Vln Peanuts made a vary high yield when ~tu.rkie in a good cropping system. D. G. 141 Tabl e 109 Cropping Systems Follow ing Perennial Legumes Tennessee Valley SU bstation 19 /+4- 54 :Rotationll :_________ A verage yield per-acre 1944 - 1954 : SoyPlot :nnd Ferti1izor:G. Sorghum :Oats :Corn :Cotton:Vetch :Crimeo~ CloVer . :bean N o. :grade used . bu.7A :bu./A :bu./A:lb./A :G. W ./Atlb.seed)VAcG.W. Ib/A:Hay t.' • . . .. . • . • . • • . • 'lb/A .- 1 2 3 ~Corn 0-8-8 l Cot ton 0-8-8 ~cotton 6-8-8 Corn 6-8-8 39.0 1304 41.5 1121 39.7 1174 . 4 5 ~ Votch 0-8-8 6 Cotton 6-8-8 829~/ 7 8 9 tots . fats ~ orn \.....Corn 6-0-0 27.JY Crimson Clover 0-8-8 45.611 73. ~~7 .9 1248 237 Grain Sorghum 10 11 12 13 14 U an oybe Corn 6-8-8 6-0-0 ( Oat s 6-0-0 Hay 2816/J /, Cott on 6-8-8 Crimson Clover 0-8-8 Cotton 6- 8- 8 Corn 0-8- 8 61.31.07.7 1502 25769 15 16 17 ' 5/ 0-8-8Cotton 0-8-@ 47.0 1579 1582 Continuous Cotton 6-8-8 600 Ib of grade shovm per acre 10 yr . aver age 6n vet.ch and grain sorghum 9 yr. aver age on oats 9 yr. aver age not reported in 1952 and not harvested in 1954 6-8-8 grade used beginning in 1948. C. E. Scarsbrook 142 110 \-Tintor Logume Variety Test - Lafayotte Ale~d-riu, Bre'Wton J Monro~vi110, Prattville 1931+-36 --- -------(1) . : 1934-36 LafaSlette 1st: 2nd : 3rd : seed 10034 16890 86 863 Avorage in -Pounds For 1'1crc - GreeJl 1Jeigh.'t and Seed ! 1st 2nd, 3rd Cutt i n g and Seed in ordGl:' listed , ...... '-..::::.:...::..=.::~--~~~------1934-3? _: 193?~36 . ' ....... : 1935-36 Alexandrla : Brotrton : Monroeville 1st: 2nd : 3rd • Seod • 1st 2500 5058 6500 156 600 1064 +'1 ~l ine y -------------------------------------------------.---------- - ~ '--------------------------------------------- 2nd: 3rd : seed : 1st : 2nd : 3rd: seed 3628 936 ... 1935-~6: , _ ,.(:~}: ~ _ . _. Prattvl.l1e: Ave.-til.. locatlons 2nd: 3rd : - seed : 1st : 2nd : 3rd : seed 13162 7062 264 121 235 3968 1949 2929 3182 3187 1178 6863 11578 3785 5223 6231 5742 5394 8835 7199 9792 2984 1st _ ~ ~l~ 5725 2191 876 10Q 4 8 0 3904 1222 1159 1603 3395 5072 2396 2198 2088 5411 5773 21,.90 0 0 5375 9842 10~ 386 379 !!... nth~ 2203, 5060 7065 1695 4175 11000 1596 2348 2032 1363 6750 3940 9000 5882 1500 4400 8500 3875 8000 1~2 ~ 3750 , 5525 @- h(4) 5498 ~rciaTi.1 , ian Pens r 7310 10768 1:18 7'479 890; 32',::' 26 294 90 22$ 1434 31'7 6 4287 1812 4650 2538 6a68 275 ...... 6300 ..... 2 8 3498 183 3901 5845 55 0 5625 10130 14125 7437 10905 11688 (6) (6) (6) 8000 14000 15500 ~ciu.J)5495 287 494 881 650 600 l:2~f (6) 175 94_ 157 449 'on §)'::- . ·1 ' '~ , - 35~5 6638 13864 -1210 1806 I, lSon 54~1 ....... .. 'Or ~crJ~ 103 5 ....... _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ 10~8) 11~8) 15b8) ~~) ;~2344 2645 ~_290 Ion ~560 ~s 290 3875 5000 4375 ----.... 1625 11.12ll 11 nnn ')/, nnn --------------------------------------_._450 750_ 3435 7342 2332 ~70 ~l --------------------~ 6312 13938 750 1500 412 _ 52 15QSL_ 52___ j00 __ Continuod on Back (1) Fertilizer: 400# superphosphato per acre (broadcast) at all locations oxcept f~oxandria which receivod 600# basic slag per acro. nt Brewton and Monroeville recoived 50# muriato per acre brondcast. (2) Ueighted average. 3 ye 2.rs results at Lafayette and nlexandria, 2 years at Brewton, Monroeville and Prattville. Only one year's results for 3rd cutting at iilexandria 2 year's ave. at ~afayette for Nonantha Vetch • . (3) (It ) (5) (6) Only 2 years results for seed at ~lexandria Only one jroo..rs results at Prattville Only gro"m 1 year. (7) Remarks: (1) Hniry vetch averaged producing the most greon manure for all cuttings except for Common Burr Clover which w only tested as one YolJ.r at h/o locations (2) l10nantha was one of the lowest in t the production of early green manure (3) Hungarian vetch nnd crimson clover were among the lowest in tho production of green manuro. (4) \'!ith tho mccoption of Monantha vetch, crimson clover and Common Burr Clover, seed yields we~e erratic. E~mD. Donnelly l43B Tab10 111 Tintor L-..:r;U:';10 VE!:doty Test (1) 1946 Upper Coastal Plain Substation Honantha Votch -""uburn Hoo1ypod Vetch Vl'il1mnet to Votch Hairy Vetch Lustrinn Hinter Pons Blue Lupino Crimson Claval' Dixio ' Tonder T'oa ~·lonola 16486 14238 11136 9787 8917 1348 (no innoculation) 1165 Poor soed - no plants Vetch (1) Nino vnriotios of wint~r logUL10S woro planted on Padonsoil September 20, 1945. Fertilizer ""as applied at tho rato of BOO pounds por aero of 0-14-10 Qt planting. Cuttings woro mado on March 18, 1946. !..uburn i1oo1ypod and Nonantha votch wero outstanding in tho production of groon manuro. Romarks: E. D. Donnelly 144 Table 1J21",Tintor Logumo Variety Test 1 'irogrl1ss Substation 1939-48 Legume No. 450# · :45o,;! " : No. :450# :450/,1 :No. :450# :450# BS Treat-: Basic:BS & 45#: Trol1t-: Basic:BS & 45#:Troat-:Ba.sic:45i~ Muriate m ont Slng ;Muriato : mont : Slag :Muriato ;mcnt :Slag i 17642 11064 20909 5489 12023 11108 1437 5663 348 4138 (1) (2) (.3) 1568 9148 1699 1 0411 1568 7710 4922 1917 7362 5576 10237 2902 15507 5.314 9888 3049 14201 12458 9148 14702 2766 8203 1.3~65 Hairy Votch 13373 19166 Hung. Vetmh 3615 13504 Monantha V. 22651 20081 Oregon Vetch 4922 6882 Smooth Votch 9845 14113 Austrian Peas 7056 17555 8974 12023 9706 1437 3681 10411 '15006 17794 5249 6098 9845 14113 5576 10694 1176 3114 4138 2265 3071 9iL48 9583 13678 1176 2265 5881 4574 Lathyrus Hirsutus Crimson C1ovor 1tli11amotte Votch Rem arks: 450 if of basic slag increasod yields over no. treatment. In 19.39 the addition of 45f;1. of murinte of potash decreasod yields "Then compc.rcd vii th the slng treatmont ( with tho exception of monantha votch and crim son c1ovor)* This did not occur in 1940. H onantha vetch wns outstnnding in tho production of groon mnnure. * Proc~duro This docrons o may hnvo boen duo to mixing the forti1izer with tho seed. not given. Table 11.31tJintor Legume Variety Test Er-r1y vs. Lato Cuttings ( 2 "loeks npart) HirogramL-: Tenn. "Valley - :S~l1d -Hountain : ~\vg. 1 Locations .11 Lnto : Earl;2: , : Late : E'1r1y : Lete : Enrl;E : Lnte 16553 10454 25875 81244 ) 9028 1012£3) 12668 108443 )12026 94474 ) 12714 63674) 7941 11689.3) 12270 46703 ) 80.36 17.3154~ 2a817 102004~14504 215621 19166 6857 1 996.3 7(1231 ) 10390 104822 h3766 4.3561 ) 15246 138441 )1.3585 4356 135841 )17784 Legume Hairy Vetch Honantha Votch Austrian Poas Hungarian Vetch Crimson Clover Oregon Vetch H il1runette Vetch Meno1n Votch Blue Lupine 1.uburn "ioo1y Pod :_J-1kL.__ :1935,J7i3'$745.,tl,2.37 ,3e,40,~: Ho ight e d A vg. : Enrl;E 5972 .3354 6838 5706 11021 25962 10324 102~4)*12142 11108 27966 44409 24132 - 30491 ) 8812 10486 7401 8179 12989 14210 857.3 9740 25962 8986 13475 12347 10342 10153 19906 14564 12382 189.32 44409 15424 * Figure s i n pa.rent hesis represent tho No. of yea.rs VJhich tho a.li'erage r epresents. Romarks: M onola. (a vetch variety developed at this stntion but l~st) and Auburn 'woo1ypod 'Vloro outstanding at all locations oxcept tho Tonn. , V a11oy. Crimson c1ovor and Oregon (common) votch nvoraged morc green manure at this loc:ttion. RGmnrket' Tho fo11oVJing remnrks pertain only to those crops or variotios grO'wn c.t tho Tennessee Valloy o..nd ('l and IvIountain Substa.tions for as long a.s threeyenrei'i Crimson clover produced more onrly green manure than any other entry at tho Tonnessee V ~lloy substation and along with Monanthn vetch produced more than tho oth~r entries at tho Sand Mountain substation. 'E. D. DcmnQ~ 145 T,n.ble 114 Results of Winter. Legume Variety Test. 1934-36 1:1 ~o~oevi11e, Three Year Average Entry Early Hairy vetch Oregon vetch Hungarian vetch Monantha vetch Austrian pea Crimson clover 5403 4098 (a) 3418 (a) 5306 (b) 3735(c) 1400(d) Cutting Medium 7214 7806 (a) 4866 (b) 9799( b) 3392(c) (e) Late 11,439 10,772 (a) 5,064(a) Mean 8019 7559(a) 4509 (f) 8368 4604 9,9~(b) 6,684(c) (e) (a) (b) (c) (d) Two year average. Severe rabbit damage in 1936. Very poor stand in 1935. Large portion of peas dead in 1935. One-year average, 1934. Crimson not included in 1935 and 1936. Weighted average. No land preparation. Seed broadcast and disced in. Fertilized at In 1936'50# acre. (e) (f) 1/ the rate of 300# superphosphate in 1934,1935 and 1936. muriate of potash per acre was also added. Plot size = 1/435.6 Summary: Hairy and Monantha vetch averaged producing the most early herbage and produced the highest average for the three cuttings. Monantha failed to come up to a good stand one of the three years. E. D. Donnelly 146 Tnb1e 115: Pounds of Green Herbage per Acre Produced by Entries in the Wi~ter LegUme Variety Test. Brewton, Three Year Averages, 1934-36(a). Entry Hairy vetch Oregon vetch(e) Hungarian vetch Monantha vetoh Austrian pea • • - Es.rly 2244 175S 1OS4 2406 (d) 5057 Cuttings (E' s Medium 3152 2092 991 3734(d) 5767 Late 9123 4614 1465 9012 (d) S734 Mean 4S40 2S21 1lSO 5051 (d) 6519 · (a) No land preparation. Seed sown broadcast and disced in. Area harvested (b) , =1/1,000 acre. Medium Early =mid MBrch, =last of MBrch, Late =first to middle of April. (c) PresumablY common vetch, V. sativa. Fertilization: 1934 1935 . 1936 400# superphosphate. 200# superphosphate. 400# superphosphate and 50# muriate of potash. (d) Very poor stand 1935 -- practically no herbage produced. Summary: Crimson clover dropped after 1934 -- very little herbage produced. Austrian peas averaged producing more early growth and averaged producing the most growth. Oregon and Hungarian produced the least' amount of early growth and averaged producing the least amount. E. D. Donnelly 147 T n.~J1 0 116 Sbod 'fields of Winter Legume!!. 1934-36. _I M~~oeville, Three Year Average, Entry 1934 Hairy vetch Oregon vetch Hungarian vetch Monantha vetch Austrian pea Crimson clover 0.0 0.0 0.0 Seed Yield Per Acre 1936 1935 0.0 0.0 0.0 0.0 16.8 0 .. 0 0.0 0.0 349.0 109.0 Mean 0.0 0.0 O~O 56.0 0.0 18.0 135.0 42.0 1/ Plot size 1/435.6 acre. Summary: Seed yields of all entries yere neither nil , very poor and/or erratic. E. D. Donnelly 148 T~h~G ~~7 Hinter LOGume Varioty Test Sand Fountain, Tennessee Valloy and "ltJirograss 1931-l9L~6 Lbs. Groen Weight per Acre Legume~l) :§.?~ount.: TCmn~V .: Wiregrass: All locations : 1931-45 : 1231-45 1173011/ 1296719/ 10021111 96562/ l61531l1 : 1933-46 l24l71Y 137752/ : Weighted Average 10354 10819 8816 6831 12390 8636 1143.3 10890 11352 25687 3091 -------------------11 Hairy Votch 707J)2/ Monantha V. (co~ m orcial) 601010/ Austrdnn Peas.: ; 536711/ Hungarian Vetch 391221 ll50~' Crimson Clover Oregon Vetch (comr,'on) 77092/ 1099~/; Ni1lamotto · Vetch 990j.:(.! Honola Vetch Auburn Heoly Pod Vetch 12007~/ Blue Lupine Caley Peas 7301/ l1248~/ 6937~/ 679821 8193£1 967711 11696,2/ 795021 71872/ 115222/ 1383~/ 1508621 5336~/ 25687Y 2025~/ Fertilization: 1 fJiregrass 400# basic slag in 1937, 39, 40; 400 # super other years. Sand ' Mountain. 40~f 0-14-10 in 1941, 45; 600# 6-8-4 in 1942, 4.3; 40~f supor all other years. Tonn, Valley' - 600(/ basic phosphate 1931 te 35; 4001/: basie slag in 1940, 45; 300/ 1 super all other years. _/ Figures in table arc the number of YO Q averaged. rs Remarks: (1) .~uburn l,}ollypod performed Holl at Sand Mt, and Hiregrass SUbstations. It appears tlmt it is not adapted to the Tenn. V. (2) (3) Caley pea yiolds were vary low in these tosts. Auburn l,Joollypod, Hai ry, Monantha, 'VJillamotto, Monola vetch and crimson clover averaged producing good yields of green manure. Austrian poas, Hungarian and Oregon (common) votch averaged producing loss green manuro than tho abovo. Table 118 Vetch Fertilizer Placement Test A10;mndria 1932-3L~ (4) Fertilizer/A : Ho~ applied : .soeding :~~~G:.=.raon ltJh.,in lb.§.:.J2;::.;or~a~c~r~o~::--::_ __ _ Hothod : 1932 : 1933 : 1934 : Averago 1932-34 None 2 drills por cot40 ton middle 6550 6345 8700 7198 200# Superphosphato 11080 Broo.dcast 8100 " 11040 10540 14600 14258 n n 40o(,! 12585 19150 " 800/1 1L,040 30850 " " " 11530 12970 19470 18807 II 20Q~l In fUrrow 9090 1.3843 " 11 11 u 40Q~( 10275 13360 17750 13795 " None Broadcast6325 7500 6500 6775 200t Suporphosphate Droo.dcQst 9507 " 8925 9445 10150 400f 11 11 11472 " 9950 1~315 11150 80O;j! It It II 10400 11575 15450 12475 600f,!1/Dasic Slo.g " 2 drills par cotton middle 8715 16100 12 08 it This plot startod in 1933. Avo is for 2 yenrs (:1933-.34 l~ thod ef preparation - neno Seod por acro - 3~1 V ariety-Hairy Votch , A roo. HnrvostGd - 1/1000 nCTO 149!. . \ (Continuod on Br'.ck) ' . < .. , --_. --_. _ Remarks: (1) Yields increased when ~mch seeded in tho drill was fertiilzed wit} super up to $00 lbs. (2) There was no differonce botweon 200 and 400 lbs; of super when tho fertilize: was applied in the furrow, and the seod in tho drill. (3) Yiolds increased as tho super was increasod up to 800 lbs. lJhen both tho fertilizer and seed woro broadcast. (4) Yields ",ere higher lVhon seed wore in tho drill and fortilizer broadcast then when both soed and fertilizer wero broadcast. $.. .D.. Donnelly ' l49B Win~erLeguma Variety Test. Aliceville, Browton, Monroeville, Prattvillo - 1934 3100 7390 10000 12580 (2) (2) (2) (2) 4380 6110 3180 7080 Vetch 4000 6200 11100 18900 7320 9820 129 1650 1200 3000 (2) 168 1500 1100 1~ 50 o o 4800 10200 15700 4700 6400 7370 2~000 0 0 56 0 19 3260 2830 3800 9000 10500 3900 4500 4500 169 3202 5648 222 3352 4378 9/+ 11540 25 74 98 164 29 10 .0l!'. 4200 5790 60 4350 4850 13300 400 13600 23000 8550 19300 21500 21200 6200 12400 13000 12500 138 762513838 17225 20050 55 6600 8000 1]600 50 100 150 60 8000 2 1400 6000 12250 1600 1800 0) 0 5200 6600 11542 11160 725 850 975 rl pounds . of superphosphate per aero on each plot. V uneven growth. ery Plnnts de stroyed by aphids before formation of seod. 4 cutting average is Qn average of 2 locations only. 400 Ali~ovill e and Prattville rks: (1) (2 ) (3) lIonantha gonoralljr produced more green manuro the earliest cutting than the other entries; Hungarian averaged prodUCing tho least on all cuttings with tho exception of crimson. Crimson produced very little green manuro. Socdyields of all entrios were ~rratic and low. D , Donnelly "' . T <'"'-~)le 120 Reseeding Lc~es for Green Manu~e in Corn Production Yain ftetion 1950-52 Green 'vJeight in l b. A Average 1952 1250-52 . . . Yield of seed in l b. A Average 1~ 50 1950 and 12~2 1252 . :Yield-ofcorn in bUzZA Average 1951-52 1951 1252 . . Butt'on Clover' Suhterran.OOn clover Crimson Clover :0ur Clover Smooth 'Vetch Ce.ley peas Grandiflora vetch 21;780 48,400 21,780 . 0 38,720 21;780 24,200 " 6;~55 19,965 13,310 0 12,100 6;050 15,125 18,312 21,800 0 13,516 19,184 17-,440 17,004 15;582 30,055 11,697 4,505 23;331 15;090 18,776 460 213 53 ~ 735 506 0 0 160 789 709 598 359 266 0 322 818 657 ' <. 64 80 80 70 71 80 81 . 29 32 32 29 35 36 38 47 56 56 49 53 58 59 0 484847 605 tJ\ r-1 r-1 11 Grain sorghum foll m-Iing legume seed crop in 1950 followmd by two ye ars of corn. Volunteer stands in. 1951 and 1952. All plot s ~eceived 1 ton lime and 500 lb. 4-10- 7 in 1949, 1000 lb. l)a sic slag ruld 100 lb. murlate each ye~r thereafter, all fertilizer being applied to legumes • . Conclusions 1. 2. 3. Subterranean clover cnd smooth yetch produced mero groel.1 manuro thnn ether ontries Caley pons, Grnndiflorn vetch and button cloYer produced morc seed th~l other reseeding legumes in the test Thore ~ppo~s to be very little correlation between gre~n manure produced and ' corn yields in this t est. ~ppnrently there was a considerable amount of exporiment Rl error in thi s t est. E. D. Donnolly T:'.b1e 121 . Reseeding Legumes Camp Hill Crop y' Green weight yields in lb. per acre l2iQ Ball clover Caley peas Grandif10ra vetch Manganese bur clover Woo11ypod vetch Crimson clover Button clover Subterranean clover Smooth vetch 41,856 23,947 15,260 9,800 18,314 14,388 17,004 40,548 22,236 1951 ~/ 0 12,503 13 ,310 0 6,453 9,680 0 0 9,377 ].952 2:/ Average 1950-52 23,835 20,870 15,533 6,755 12,906 10,929 11,481 13 ,516 17,514 29,648 26,160 18,028 10,464 13,952 8,720 17,440 0 20,928 1/ Seed crop made in. 1950 followed by grain sorghum. Corn in 1951 and grain sorghum in 1952 following a seed crop. All plots fertilized each year at rate of 600 lb. basic slag and 100 lb. muriate. Z/ Volunteer stands in 1951 and 1952. Conclusions Caley peas, smooth vetch, and grandiflora vetch seem to be the best crops for volunteer growth during the period measured. C. E. Scarsbrook 152 \. '" Table 124 H inter Crop :.daptabili ty Experiment, Brewton Field, 1931-1944 Yiolds - Bushel s of Corn and Iam,. Groen Wte _of. WinteE :Crops (1) :21 yr. : Crop Plot: : : : : (10) A vg. : Crop (~ 6) _o_._______--.;:;.;;;1~93~-~6:1937-42 :1943-47 :194[~-51 :1931-51: N :19 52~ 54 " ' ..' Z j Corn Cern Hairy V etch Corn Honantha V etch (31-47) Common Vetch · (i.,.:-': (4i!Q51) Corn A. lv. Pons (31-48) Crimson C1ovor (49-51) Corn Corn R (31-48) ye Crimson (49-51) 15.1 26.9 4208 29 .1 26.6 9!0 22. 8 3796 7.8 36.8 11428 32. 8 44~ 6 ~a ..2 5644 42. 8 1~.1 Corn l..5.Q 31. 5 Corn / 43.2 6083 Hairy Vetch 22. 10133 31.9 (J6ihi.;~ 37.3 5379 25. 9 6862 26.6 6650 32.9 5512 62~~8)Wi11amette 1z,00LA 31.6 Corn V. 45.0 "4 4g~i) 268 2 6254 13.5 14.0 2071 5501 9~0 "5 5 10.'7 2412 23. 8 566j) Blue Lupine 80#!..A 12. 9 36~ 5 ( )16 ~517~orn 22.0(15)~ 14 22.2 orn 3£~~) 1694~2) 25833 43.4 38.2 7 8 cc-TI 9 1764(5) 16675(611212(7) 5845 (20 rims on 20# per acre Odd Years 9950 corn(3) 22 . 0 17.3 28.7 Corn 37.0 33. 9 49. 2 (Red Clover in '31) (4) (21 C~~sonoannunihly:= '.r 4736 3169 16222 12531 8696 6 imson 20# per acre r A nnualll 8233 -:--Ij .~ Corn Corn 10.6 Ib.5 SS.l 42.3 9. 9 Corn g/ 21.4 Crimson-annually (31-36) Crim son overy 3rd Yr. (37-51) 3611 39£,1) 1~~33(12) 280219) Crimson 20# per acre va 8888 17) Even Yrs! 30" 9 . 30.7 27.6 Corn 37.5 6 10&13 Corn 24. 6 (8) 1931- J.\ . lV. Poas 30,:1/ .'1. ~Q ' 2~l8 (9 ) 2723 34.4 10420 44.5 13206 Corn Crinson 37.0 1~14 Blue Lupi ne 40#/A 5768 . 194351 rr.Otfi./Al' Corn 8554 Corn 1931- A. 1v. Peas 40 60#/1. lLl&14 -- - 26.4 24.9 34.2 47.4 37.8 11& 15 1943~1 Blue Lu~ino 6~fLA 6752 12& Corn 15 1931- A. S. Poas 90#/ A 26.4 ~63 12202 33.3 1211z.1 Crim son 20# LA Corn 11188 38.3 40 25.4 4Q.O 12& 16 194351 Bl uo Lupi ne 80lILA 7 865 16&17 Corn " 1931- A. W. P O'l S 45#/ :1- 23. 8 40 1)8·:17 194351 C orn on1:z Crimson 1z.732 13995 14.2 14416 33.7 30~~LA 13135 33.4 13.3 Corn L.212 3~22 153A (1) 400# of Superpor ~crc proceeding winter· qrop or proceoding corn if no wintor crop. From 1932 to 47, the first 3 rows of each plot recoived 50(! of muriate . per ncro to c·o rn. Crimson ' clover, clean seod, planted on plot 6 annually from 1931-36. Deginning in 1937, crimson clover, chaffy seed planted once every 3 years (1939, 1942, otc.) • 225/,L of NaN03 applied to corn yonrs no clover grown. . Phosphate applied to corn yoars no clovor grown. Chaffy sced each yoar on plot 8. 5 jToar ave. 1932-36. 635# rye grown on plot in 1931. (2) .L (3) (4) (5) (6) (7) (8) ~9) 2 yenr ~ve. of 2 crops (1939 & 1942) 1 crop only (1945) 2 yr. average of two crops (1948 & 1951) Plets 10-17 nre five year averages of five crops (1932-36) Plots 10-17 arc 4 year averages (1937-40t (10) Corn on plots 1, 5, 9, 13 & 17 receive 20/-,' N (1251,1 NaN03) at p1antil1[" n~1d 40(/ Nitregen (250i;! NoN03) at second cultivation. All plots receive 100( of nuriato per acro to corn and 40Qf of super to 1egumos or to corn if no logune. (11) 1•• F . Peas & Rye - 6 yoar avg. (1943-48). (12) Crimson Clover - three year avorage. (49-51). (13) Plot 4,1949 - received 400(,1 super, 84// Huricto and 24/! N(Nc.N0 3 ). 1C:' 5~. 1951 - l50i;~ NaN0 3!.!. to crimson clover plus P & K 1950 - GOOi:f basic slag & 100# muriate Plot 6,1949 - SOQ:! basic slag/f. in placo of 400tf supor 1951 - GOO;:! basic ' slag/A in p1aco of super 1950 - 400ii( super, 100# muritte and 24# N/l. (14) (15) 375(/ NaN03/:' applied to plot 6 in 1946, 47 and 48; 125# ~hon rye emerge:;) . 125# just before turning and 125(1 to corn at second cultivation. (16) Legume gets 600i:1 basic sIng [l,nd lOOt·? muril".te of potash/A. Corn on plots 1,5,9,13 & 17 gots 100/,1 l1itrl'.te of soda, 600/1 basic slag (L1'1d lOOP mUriate/:' at planting [l,nd 400i~ NaN0 3/A .as a side-dressing in two applications. (17) Crimson clover on plots 6 & 7 every' other yoar. When no c1ovor on plots, thoy nr c fertilized sane as plots 1,5,9,13 & 17. (lG) 17 yel".r ::tverar,c of monnntha vetch (1931-47) (19) 18 yoo..r cverr.gc (1931-48) (20) 11 year Qvorcge of 11 crops ovor 21 year poriod (21) ~~Z). 20 year avorago of 20 crops (1932-51). i ~eqed'~·~ the rate of 30#/A J. T. Copo, Jr. 153B Tab10 1231,J inter Crop Adaptability Experinont tUaxandria Field 1931-1944 Plot: No. 1 Corn Corn 2 Crop r :Yia1ds-Bu of Oar and Lbs Green \lJt of 1l intor Cro s :':"U ' : (10 14 Yr. Avg. of Ler;UDOS 13 Yr. t>vt§. of corn :1931-35:1936-39:(40,41,43,~ 1942 ,. 9.2 7.5 1186 21.2 8358 21.7 8$52 22.() 9950 (1) )5.3 ,,29.7 4.2 3.1 116~ 4.0 4.4 1281 19.7 3634 22.1 " 5896 19.3 33136 6.3 22.2 2664 33.2 0(11) 862 1025 825 1338 6560 1483 1970 1272 1685 1096 1476 335 1513 435 6.1 5.2 1165 23 .• 1 6677 24.6 7206 24.6 8002 10.2 28.0 924 14 ) Ryo Corn 3 t.. 1.1. Poas · 29.0 7398 30.8 8144 33.3 11762 7.8 31.8 7846 33.8 618613 ) 22.2 Corn 4 Hairy Votch Corn 5 Honantha Votch Corn Corn 7 6 (Chaffy saod) Crinson C1ovOr 1943~2) Corn 2817 b n(8) 31.6 1(64615 ) 22.5 (16) 6218 A.P. 4080 rye 8.5 Crimson Clover 1541£3) c {~) Corn I.. 21.9 538£4) 12.5 --1694 23.4 445 ryo 1404 1685 - '~.-~ ~ 9 Rye 10 11 Corn (6) Corn , P.· 1.1t wi th 6530 rye 3448rye 5288 A.P. 7980 f,.P. 5.7 27.5 6.3 29.2 (17) 28.3 (18) 30.3 21[12 (7) .~ --' .. ~ ----- Corn 12 Rye 29.2 (12) 2625 31.2 2478 1.1194 (19) 555 1541. Crinson Clover clc~ socd on plot in 1931 (yield - 3325#) 4 year hVg. no clovor planted on plot in 1931. 4 yoar avg. of 4 crops ( red clover on plot in 1931 yiold - 235(}'n Two year tivg of two (I.. W. Pons) crops (1934-35) Nono in 33, Burr Clover in 32, Alsike in 1931 ( yield 18501,1) ;al plots roceive 400// super/!. to logune or to corn if no loguno on plot. In 1933 all plots oxcopt 9 rocd ved 50ifI of I1uril1ta/!. to 1/2 of oach plot. (6) (7) (8) Lospodoza so~ was turned for 1936 crop 22~! of NaNO to corn Beginning in 1938. Lospodoza sod turnod for 1937 crop (1st crop of corn) 22~! of NaN0 ~o corn bogirtning in 1938. 3 Crinson clover, c10an sood, usod frOD 1931 to 36. CrmDson ciovor, chaffy sood,usod (clovor ovary 3rq. Y00r-1939 and 194.2 ctc~ During yonrs no clovor . On plot 225/1 of NaN0 3 usod to corn. 1.. Po ~ s n1 t orn "to with ryo. f.. Po!'.s on ovon yonrs and rye on odd yoars. (~~ (10) (11) (12) Poanuts in place of corn in 1942 only. No clover on any of thoso yoars Ono yoar only 1939-Ryo Corn ,3 yoar ~vg. (1937-39). (13)2 yoar tvg of 2 crops 13 yor.r :.vg of 13 crops. Nono in 1931 p~riod (15) (16) (17) (18) (19) 7 yo-'r ,; vg. of 7 crops over 14 yoar 6 · yoc.r :'vg. of t.ustric.n poas · and 5 yoar f.vg. of ryo. £3 yoar ,\vg; - .... . 7 yeo.r 1.vg. 6 yq r.r l.vg. .-.- ....... . .". . .,.- ...... ,. ~ , .. . ~ .. 15413 J. T. Copo, Jr. i .- Tablo124/ t*intor Crop f.daptabil:ity Exporinont Monroo~il1e Field 1931-54 --Yiolds- Bushels of Corn and lbs l Groon lit: of Hintor CroE i17; ' fl) : : : : : 21 Yr.: Plot: Crop & Troatnon I • ... . ' ' . • • • • 2 Avg • • Crop • -". .*1,4-) No. : :1931-36:1937-42:1943-47:1948-5 : 931-51 : :1952-54 --- . . fi #I • • . f " \ .. ' ! __ ... . h - I Corn Corn 2 Hairy Votch Corn 3 Monnntha V. 18.2 11.3 33.7 5490 27.0 4861 11.2 41.9 "'6367 25.9 2766 36.6 43.4 18.1 . 40.4 Corn Corn 35.5 36.5 19591 43.7 9486 42.1 12688 5350(19)713~20)Hairy V~ 39,1 39.1 ", 33.4 Corn (13)(19) (21) 7007 TJil1nnottoGlG3 8850 V etch 32.6 2G.6 Corn 40.2 Corn 4 A. H. Poas Corn Corn 6 Ryo Corn 7 Crir.:.son Clover (9) Corn u M 33.8 5271 12.0 14.5 2140 20.2 2209 29P 4680 19.9 2382 6.l £1.4 1659 26.4 (4) 4820 24.9 5175 29.4 26~j2) 7.7 ft63Hf~)344£22)BlUO LUP.~0017 35.7 13.8 Com 35.0 5 (16) 17.7 (12) 2744 2916 (8) Corn 21~6 39.0 56.8 .. (18) (11) (15) ' ...,~ (2.2) 26900(19)2181 Crinson . C;21838 Even Yr. 42.5 (8) 20200 53.0 (19) 20933 28.5 (23) 4379 36.0 (18) Crinson 19225 Odd Yrs. Corn 700 41.7 10123 (3) Crinson Clover 35.6 Corn 35.1 (20) 8627 Crinson 1.nnua11y 17300 ' o· _ _ _ _ _ _ 9 Corn 15.8 41.7 (5) 10563 41.4 (5) 9.4 10.8 42.7 (10) 14957 44.3 (10) 16624 36.9 49.3 (19) 23433 49.5 (19) 22458 50.8 (19) 23G33 42.4 . 16.8 Corn Corn 33.0 33.0 1¢) & Corn SC J :--:-:14 (J.vg. ) Hairy Vetch Blue Lup. 40(//1. 31.b7 ) (6) 2338 (7) 30.4 (6) 2395 Crinson 12238 10(;!L1. 1t & Corn 15 Hairy Votch (Avg . )Blue Lupine 60(//1, Corn 20i~.!L1. 33.6 11094 41.7 (5) 9G37 Crinson 18658 Corn 30(LA 12 & Corn 16 H airy Vetch (J~vg. ) Blue Lupine 8Oft!/!. 13 & Corn 17 Hairy Votch U.vg . ) (7) 31.0 44.6 (6) (10) 2651 20509 32.4 Crinson 23034 Corn 31.1 (7) 41~0 30;8 . 21.6 9795( 5) 3211)6) 1551 Table 126. Mixtures of Alfalfa with Different Species and Rates of Soeding of Grass e s with and without Nitrogen at Tennessee Valley 1952 . . Pounds of dry mnttor by cutting Troatr.'lent (1) Pure .i.lfclfa Pure l~lfalfa : Grass (21 % 2462 + 893 932 929 830 802 682 689 ·764 4037 4274 4213 4123 3925 3694 20# N 2653 2520 2477 2317 2180 2154 2158 2257 2294 4# Fescue + 20# N 2.9 8# Fescuo + 20# N 12# Fescue + B16 806 744 719 770 834 3.7 2.5 20# N 8# Fescue 0 N 4# Orchard 20# N 8# Orchard 20# N . 12# Orchard 770 755 4.1 7.6 7.9 9.5 3628 3644 3881 716 790 749 20# N 8# Clrchard 0 N 783 3831 11.7 (1) . l..J.falfa sooded ·on all . plots at tho rate of 20 pounds per aero. (2) The percent grass was detorr.rl.ned for the first cutting only. Su.rnrnary The grasses did not persist boyond the first clipping because of dry woather and the meadow systOTI of management used on tho experiment. similar to results of othor tosts in hay or meadow conditions. Llnb~ma These results ar~ quite involving grasses and alfalfa under L. J. Chapmn 1'37 T.".b1e 127 Effect· of Ritte, Dc.te o..nd Method of , Seeding lJ.yce C10vor on Yield of Dry HerbaGo. ------- A1ioevil1e 194ID-l941 Treatment : # seed : Planting: Dry Wt.: Planting : Dry Ut.: :per acre : date 1940:#/A 1940:Date 1941 :#/A 1941: 28" rO'\·.Js 8 28" ro-ws 12 28" ro-ws 8 28" rov's 12 Broadcast 1940-15 1941-20 Broadcast 20 Nay 13 Hay 13 3826 3740 May 9 May 9 June 5 June 5 2916 2786 2948 2808 2940 3360 June 21 ~566 June 5 May 9 The clover planted in ro-ws in 1940 and in rmls and broadcast in 1941. Both come up about the same time. Considerable hoeing is necessary usually to keep -weeds out of the clover; the later planting date is not as bad, especially tho broadoasf area. Remarks. (1) (2) Tl:).ero -was no difference in yields from 8 and 12 pounds of seed per acre. In 19L,1 the Hay 9 planting yielded more than the June 5 planting. --~- Table 127-2 Red Clover Stain Test 11 Yield or.Ha~ in Poynds Per Acre 1 ... 'Tallassee ... : Poidmont - : , UI2'Oor.Coastal Plains: Stain : 1948 : 1949 1948 : 1949 : 1948; : Average * 1949 2484 2931 3580 3025 2161 2198 2418 2:P4 CoIilmorcial" 1448 Ky. 215 1340 Ml-16 1282 1261 ~.4-13 N2-16 1257 Cumberland 1149 M2-44 1045 Composite~ 1004 Midland 992 M4-16 925 M2-1 909 (Me Connico) Strain M 871 M2-17 834 M2-20 ' , 834 His. N. R.Y 730 Virginia 7CA Louisiana 593 Konland 577 Drake Bruce 2465 9227 3125 3506 3212 2260 2223 2345 3756 8381 2480 2256 2901 2770 3032 1831 2260 341,0 3169 4187 2360 2037 2000 1875 2049 3175 1821 3776 3537 4064 982$ 9279 10~,74 10734 9450 y. * 2.1 11 Hay ~rie1ds exprIBssed at 15% moisture. Composite of 14 s e l e ct ed pla nts 1;Jisconsin Nildm.J Resistant Green wts. converted to dry \ns. on basis of 18% dry matter (1) (2) Ken1and, Virginia, ~!id1and and Louisiana averaged producing more hay than the other entries. Three Alabama selections, Ml-16 , M4-13 and M2-16, wero among the top ,yie1dors at Tallassee in 1948, indiceting tho possibilities: of improvement in r od cbvor. These lNere the result of one gene1 ration of selection. Remarks: E. D. Donnelly 158 Tnblo 128 Red Clovor Strain T8st. Tallassee. 1949. V.,s. Ho..y Eor hcro Stali1-: Cutting method Average ( 4 replications) Drake (Local Strain) Kenland Virginia YJ.dland Bruce (Local Strain) Ldluisiana NC Connico Hay Clipi' Hay ... ........ _. Clip Hay Clip Hay Clip "Hay Clip Hay Clip 10734 9155 ")6607 9279 6265 9450 6713 9227 7151 (Strain M) Summary: 8381 5050 I comparison of two methods of nutting seven strains of red clover showed that clipping 4 times at monthly intervals produced only 73% as much dry material as cutting t'.Jice for hay. Stand counts were made on .['.11 strains. Stands romained considerably longer undor hay cuttings than undor the clipping treatments. Drake and Bruce strains survived best whilo Louisiana and Mc Counico lost stands most quickly. Stnnds of all strnins '.Jere practically p-one by S~ptember. Tnb1e 129 Uniform Red Clover Variety Test - Cooperativ~ U.S.D.A. Tr11assee Plant Breeding Unit, 1952. J!"orage Yields Entry Pounds Oven-Dry Forage :12er .lI.crc b;:[ Cli12I2ing Dates :Mar. 28: May 2 May 27 total 282 132 78 786 218 231.1 50.4 Seeded 5 ft. x 20 ft. 4 Randomized complete block 2141 1879, 1447 2606 2130 543.3 17.3 894 952 774 514 590 97.8 8.5. 3317 2963 2298 3906 2938 327.5 15.0 Kenland l·! idland Tenn Purple Seed La. Red La. Synthetic No. 1 L'. S.D. $% level C.V. ' Sizoof plots: Harvested 3 ft x 17 ft. No. of replications: Experimental D esign: Date Planted: Fortilizor: Limo: October 10, 1951 1,000 pounds G-16-8 per acre prior to planting. ~ Limed to 6.5. Remarks: r:. Louisiana r od clover produced more carly forage than the ether entrios ru1d produced significantly more total forage than the other entries. D. DonnOl}y 159 T:\b1o 130 SUIDInary of White Clover V,?:riety Tests in Alabama 1952 .:. 54 Oven::s1ril forage ;y:ield§ in lb§t 12er acre FEU Belle Mina Winfield 1952 1954 1954 195.3 1953 1954 195.3 5409 4426 54.31 4494 4606 547.3 4648 3828 5886 5170 .3859 4550 4223 4650 4.397 2586 4747 3444 .3503 .3491 .326.3 .3086 3205 3135 3560 3178 29.32 .3.379 2590 2587 2475 .3465 .3.391 .3,005 2851 .3610 3577 3445 2.352 1915 25.94 "" 22.30 2289 22.38 2414 Variety Ladino, Oregon Pilgrim* La. 8-1** La. White White C., AlaLu White C., No1in's*** White C., Winfield White C., Wew Z. 22V 2513 * Also tested under name Breeder Ladino FC23608 and FC2.385l, was named Pilgrim in 195.3. ** Old seed used to establish plots in 195.3. The percent viable seed for this seed lot was 68%. *** This clover has been sold under the varietal names: Clover and La. Improved Giant White Clover. P. B. Gibson T[l.b1e 131 Tine of Planting Cril'!1son Clover Brewton Fiold D ate of G 27/51 / 9/6/51 9/21/51 10/5/51 10/22/51 11/6/51 11/24/51 '12/10/51 Pl ~nting: La. Improved Mother White Groan l m ..... i 5 ~ Y Data ol:'ltcdnod 1933-1939 ' contained in Experilnent Station Circular 83, Kudzu, Its Value and Use in Alabama, by D. G. Sturkie and J. C. Grimes. 1939 • This plot was cut as many times as ready during 1st two years of experiment. These values are omitted. V 11 These plots were not cut these years in order to allow damaged stand to thicken. ~/ ~ese plots were cut only once these years to allow damaged stand to thicken. 'g c+H)~ 'd 110c+m p- (l) o c+ (I) til p0 (I) 1-" '0 H) H)(l)C+::r' ;:;1 O~Oc+ () 21 8 year average instead of 10. ...... m (]) Kudzu for Hay - Terrace 17: QE,jec~ Alexandria Field 1935-44 To determine yield and persistence of kudzu under management for hay production. Kudzu crowns were set in the spring of 1930 and the kudzu was cut for hay twice annually, in June and in October, from 1935 through 1944. No ferti- lizer was applied to the kudzu until 1943 when 400 1bs. superphosphate and 100 1bs. of muriate of potash per acre were disked into the soil. The yields of hay are summarized in the following table. Table 195 Pounds of Kudzu Hay Harvested per Acre . Alexandria Field Year _._._ -• . June Cutting 3015 1570 4000 3150 2775 2450 No Harvost No Record 2641 3358 --1935 1936 1937 1938 1939 1940 1941 1942 1943 . October Cutting 1680 2286 2000 2425 2600 1625 3042 . Total 4695 3856 6000 5575 5375 4075 3042 ~--- 3410 6051 1944 ---9 Yr. Average 3277 _ _ _ _ _...£2635 5034 By 1944 Johnsongrass had invaded the stand of kudzu and it constituted much of the total hay produced. at Aliceville ~ield This and a similar invasion of a kudzu stand The indicates that Johnsongrass will crowd out kudzu. yield of hay in 1943 and 1944 following the spring application of fertilizer was considerably higher than it was during any of thn five years immediately before fertilizer was applied. This increased yield may be due to increased -g-r{)"lth of 1r.:u.O,ZiJ_ Johnsongrass or both. ., 211 Deep vs. level planting of corn - - - -Auburn 5 year avg. 1951-1955 The same fertilizer was used in all cases. The fertilizer consisted of 400 Ibs. 4-10-7 applied ahead of planting and a side dressing of 200 lbs. of ammonium nitrate per acre. Method of planting: The Land was plot broken in all C8ses. In case of The deep planting a furrOl.J was opened with a middle-buster running deep. fertilizer was put in the furrow and mixed with the soil and the corn planted in the deep furrow. In case of level planting a shallow furrow was The corn opened and the Eertilizers applied and mixed with the soil. was planted and CuI ti vation: Replications: covore(_~ so as to leave the soil practically level. vIas normal in all cases the s oil was left level at laying-by. 10 replications were used each year. Table 196 The Yield of Corn in Depth of Planting Test Depth of Planting · • Y~ of com in bushels !lor acre •___ • ------ :1251 • 19,2 Lovel Deep Furrow 41.7 60.1 27.9 31.9 . . 1953Year . 1255 • . 195tt • 67.1 69.5 19.6 20.6 64.5 65.1 5 n.a avga 1251-52:- 45.4 49.4 CONCLUSIONS: In only 1 year (195l)illi.~1Nl was a significant difference in yield botvleen the tvl0 methods. · In 1951 planting in a deep furrcvl produced an increase of 25% in the yield. In tho other 4 years there was no difference in the yield. D. G. Sturki:e. 212 Soil Fuwigntion Studios The resultc of soil fumigation studies conducted at the Plant Breeding Unit at Tallassee indicate that cotton wilt and nematodes may be led and profitable increases in lint yield obtained. satisfa c to :~ily control- Dow fume 1'185 and DD applied in the rot' at 2 and 7 1/2 gallons respectively per acre, have proven the most economical materials to use. The root-knot nematode is considered to be the primary parasitic nematode controlled at Tallassee, al thour'h several other parasitic types are present. The experiments reported below were conducted on the A gronomy farm at Auburn. The area involved is a sandy soil analyzing 88.5 per cent sand, Cotton plants show extreme stunting in the area, with the tap root very much shortened or non-existent and with much branched later al roots confined to the upper 2 to 4 inches of soil. Other crops are likewise stunted and yield poorly. An analysis of the soil showed no root-knot nematodes hut large populations of the ectoparasitic and meadow nemat ode types. Studies "'Jere made in 1954 and 1955 with soil funigants for the control of nem atodes in this area. 5 f allons per acre, per acre, In 1954 Dowfume W-85 "laS applied over all at the rate of In 1955 Nemagon was similarly appliedat the r ate of 5 quarts The results Cot ton, corn, sorghum and peanuts were the cr ops planted. of the two tests are summarized in the following table. Table 197 Acre yields of several crops treated with soil fumigants. 1954 and 1955 Agronomy Farm ------. --Treatment --Corn ' Bus. t Cotton lbs. lint Sorghum, Lbs. Grain Peanuts, Lbs. :Dry shelled nuts . Dowfume, W85, 1954 Treated Untreated Difference 347 275 72 42.2 39~4 2,8 Nemagon, 1955 1522 654 868 493 409 84 Treated U:r.treated Difference 1008 523 485 SID1M.ARY 1597 1789 ' -192 The yields were not hif h in 1954 due to ' dry weather. The increases from treatment were considered significant with cotton, sorghum and peanuts. However, control was not considered satisfactory since much stunting and poor root ~ rowth occurred in the treated plots. . , . The 1955 test with Nemagon wa, m ;more satisfactory. Excellent control of s uch nematodes was obtained with an increase in yield of essentially one bale of cotton and 25 bushels of en rn. A slir'ht reduction in yi eld of peanuts w not considered as From the sandy soils. a lower vapor apparently is results obtained Nemagon appears superior to Dowfume for fumigating Nemaron is a heavy material wei~hing 17.3 pounds per gallon, it ' has pressure, persists in the soil for a longer period than DowfUme, and much more effective. A. L. Smith 213B Tnb10 198 Effoct of R~to of Sooding Lespedoza Soricen1/ Llicovil1e 1943- 1947 Lbs. H~w por nero 1947 5916 7356 7818 8028 7620 Lvorago 1943 - 1947 4155 5843 6366 6357 6467 incrce.sed to 30 pounds. Lbs . Scod Per Lero: 1943 : 1944 : 1945 : 1246 10Z/ 2.0 30 40 50 Remarks: 2932 4582 5492 5623 644.8 3530 5376 5863 5700 5798 3563 4915 5116 4986 5148 4836 6984 7542 7446 732 0 -Hay yields incro a sed res the ·s08c.1ing rate Thore wa s no incre a se rebovc 30 . '.JQS 1/ 2/ ,So odod J.pril 16, 1942; cut 2 time s each yo arfor hay. muriate por aero in 1942. 500~~ 0-14-10 in 1946. Somo 1'oods in ellch cutting on l Q;" r a t o . Table, 199 400/1 super rend 50# f OH other plots he,d ,-mods. Pounds of Hoy por aero produced by Varioties of :.nnualLo spedezlt -----,..;. ...- Upper Coa stal Plnins Substation Variot yl/ Common Lc sp ede za Climo.x Lospedoza Kobc Lcspode za Koro.2.n Lcspodozn ROVICl.l1 ._--EQWds 12rL.Hay"'Per l"cro 0rflgo 1953____ : f..v 19 52 ~ 1502 2276 2054 2190 1505 2765 1889 1764 1960 1218 1921 147/+ 1731 930 1077 1/ Fortilizor: 500(/ por o.ero 0-16-8 o.t planting (1952) nona o:ppliod in 1953. tl.omQrY:.s ~ Tho t vlo-yc: o.r o.vor ilgo yiolds indic nt o that Koronn is l o ss productive t hQn th0 ethor ontrios . Th(;r o Q PT)u[tr s to bo litt10 diffor onco in yields of tho other ontrie s. 214