BULLETIN NO.,160 ALABAMA DECEMBER, 1911 Agricultural Experiment Station OF THE Alabama Polytechnic Institute AUBURN Local Fertilizer Experiments With Cotton in South Alabama in 1911 BY J. F. DUGGAR WILLIAMSON J. T. L. L. GLOVER and E. HODSON Opelika, Al.. Post Publishing Company 1911 1ON. J. COMMITTEE OF TRUSTEES ON EXPERIMENT STATION. R. F. KOL....................................Montgomery HON. H. L. MARTIN......................................Ozark HON. A. W. BELL.....................................Anniston STATION STAFF. C. C. THACH ............................... President of the College and Agriculturist F. DUGGAR.............................Director B. B. Ross................................Chemist and State Chemist C. A. CARY.............Veterinarian and Director Farmers' Institutes Industry J. T. ANDERSON ................. Chemist, Soil and Crop Investigations Entomologist DAN T. GRAY..................................Animal W. E. HINDS ..................................... F. E. LLOYD..........................................Botanist P. F. WILLIAMs.......................................Horticulturist C. L. HARE...........................................Chemist L. N. DUNcAN* ................. F. A. WOLF....................... T. BRAGG.....................................First Superintendent of Extension Work ................ Plant Pathologist Assistant Chemist Animal Hushandman E. F. CAUTHEN.................. Associate Agriculturist and Recorder W. F. WARD*'............................Junior I. S. McADORY.....................Assistant W. F. TURNER...............................Assistant J. B. HOBDY* in Veterinary Science in Entomology M. F. FUNCHESS...........................Assistant Agriculturist ......................... Assistant in Extension Work C S. RIDGWAY...................................Assistant in Botany J. L. C. C. PRICE............................... Assistant in H-orticulture WV. SHOOK............................ Assistant in Animal Industry E. R. EUDALY*.................. Assistant in Beef and Swine Indt'stry J. T. WILLIAMSON..... ............. L. L. GLOVER.............................. ....... Field . .. Agent in Agriculture- Field Agent in Agriculture Secretary to Director Assistant in Agriculture Assistant in Chemistry H. M. CONOLLY......................... Field Assistant in Horticulture 0 J. H-. SELLARS............................ E. HonsoN ............................... COHEN...................................... I. W. CARPENTER ...................... L. Field Assistant in Entomology Assistant in Animal Irudustry W. SUMMERS ......................... S S. JERDAN*.............................. Assistant in Beef Industry in Swine Hushandry- A. R. GISSENDANNER...................Assistant Assistant in Poultry C. D. ALLIS....................................... *In Co-operation with U. S. Department of Agriculture. LOCAL FERTILIZER EXPERIMENTS WITH COTTON IN SOUTH ALABAMA IN 1911 By J. F. DUGGAR, J. T. WILLIAMSON, L. L.GLOVER, E. HODSON The chief object of these local fertilizer experiments or soil tests has been to ascertain the best fertilizer or combination of fertilizers for cotton, growing on each of the principal soils of the southern half of Alabama. The results recorded in this bulletin were obtained in fertilizer experiments conducted with funds provided by the Legislature of Alabama in February, 1911. This bulletin deals only with fertilizer experiments carried to a conclusion in 1911 in the southern half of the State. For convenience the counties grouped together in this bulletin are those lying wholly or partly south of the Central Prairie or Lime Region. The results of fertilizer experiments made in the counties lying wholly north of the Central Prairie Region will appear in a later bulletin, which will be issued within a few weeks after this one. Local fertilizer tests constitute only one of many lines of experiments instituted in 1911 by the Alabama Experiment Station with the support of state funds, none of which were available for experimental work prior to the present year. Local fertilizer experiments as now conducted are made on the farms of farmers especially recommended as being men likely to take the necessary pains to secure.accurate results. These experiments, located all over the State, are visited and supervised by representatives of the Experiment Station, who are expected to select and measure the land, make periodic visits, and take notes on the progress and results of the experiment, and, so far as practicable, assist in harvesting the crop. However, the late date at which this work was begun in 1911, the fact that many farmers had already fertilized their most suitable land before being invited to make these experiments, and the necessary delay in securing the services of the men 242 who were to supervise these experiments, resulted in many cases in the selection of land and of locations which later prove not entirely satisfactory. It is expected that in future the per- centage of conclusive and satisfactory experiments will be larger. However, no increase can be made in the total of fertilizer experiments. Small lots of carefully weighed and mixed fertilizers were supplied to each experimenter. Detailed instructions as to how to conduct the experiment and blank forms for reporting results were also furnished. Representatives of the tion inspected from one to three times all the experiments here published except one. The following list gives the name and address of each experimenter who has reported the results of fertilizer periments made in 1911 in the part the State indicated, together with the page of this bulletin where the results may be found. number of Sta- of ex- COUNTY POST OFFICE NAME Page Barbour........ Louisville..J. Bullock........ Inverness .R. Bullock........ Union Springs . A. Richards .. F. Hooks......... 289 E. H. Cope.......... 289 Butler......... Coffee......... Choctaw........ Clarke......... Clarke......... McKenzie .J. Enterprise .... Pushmataha ... Bash........... Grove Hill . ... C. Araat.......... J. W. Harry......... D. 0. Phillips........ T. M. Pugh......... 1. W. Calhoun....... 266 272 281 280 288. Conecuh........ Belleville....... Covington .Opp........... B. D. Arant......... 284 W. A. 1\aloy........295 Covington .Andalusia .W. E. Bagley......... J. W. Ellis.......... L. Hawkins.....89 T. Crenshaw Dale........... 295 24 292 .. Crenshaw .. Dale........... Dallas......... Dallas......... Dallas..... . Dallas........ Escambia .. Escanmbia .. Geneva........ Greene....... Greene....... Luverne.......F. Midland City . .. rantley....... W. Bairrineau .-.. Ozak .......... J. Selma R. No. 4 T. Central Mills . . C. Orrville.......B. Marion Junction M. Atmore ... J. W. Byrd ......... G. Koran ........ E. Shuptrine..258. F. Wilson ........ F. Smith ......... W. Jones.........94 Brewton.......G. W. Brown ...... 269 257 264 287 294 Slocomb....... J. G. Lewis ......... 291 Knoxville..T. H. Chambers . ... 248 Clinton........ W. W. Morgan..295. 243 COUNTY Hale..........Prairieville POSTOFFICE .... NAME J. H. Collins ....... Page 251 Henry......... Columbia.....F. B. Douglas ...... 273 Henry......... Headland....... W. Ward ........ 294 H'enry......... Headland. J. T. Knowles.......293 :Henry......... Columbia . .... H. L. Williams . 287 Houston.......Dothan........ T. J. Herring........270 Lowndes ...... Letohatchie . . J. B. Mitchell, Jr. e. . 289 Macon......... Nota~sulga. B. H. May.........275 M. IDavis.........276 Macon.........Ft. Davis.......F. Mobile......... Monroe........ Monroe........ Montgomery Chunchula .... ... Monroeville Jones Mill .... W. A. Mims ........ M'roe Land Co. A. L. Harrison. Fm . .278 285 ... Hope Hull ..... Perry.........Hamburg.....J. Perry ....... Felix..........J. Perry.........Marion........ Pike......... Brundidge. Pike ......... Troy..........H. Russell....... Seale.......... Sunmter....... Geiger.........E. .Sumter........ Livingston .... Washington ... Leroy..........T. Wilcox........Camden........ South Wilcox........Alleton ...... Wilcox........Sunny Dr. Frank McLean H. Lee...........254 ... 287 252 287 255 J. N. Colley......... 288 P. Rhodes.........267 Geo. W. Thomas .... M. Alexander. J.B. Billups.......287 A. Gilbert ....... W. L. Ennis........249 Lee Porter........283 246 G. M. Cook ......... D. Carmichael .... J. H. Jones, Jr.......261 260 263 . .J. Plans were made and fertilizers were supplied for experiments in the following localities, where, however, the experimenta were not caried out or, if carried out, no results werere ported. NAME POSTOFFICE COUNTY Autauga............. Autaugaville......... M. M.. Smith Barbour .......... .. ..... -Butler....... Choctaw............. Clarke.............. Dallas.............. Greene.............. Hale................ Marengo............ Marengo............ L. L. White ......... Clayton Greenville........... W. T. Thagard M. Slay Silas................ Suggsville...........IJ. J. Hunter Joe Buster Berlin.............. West Greene......... W. M. Owens W. T. Martin Havana............. Houston......... .. IDothan .. .. .. .. .. ... B. E. Napier Dayton............. Linden.............. J. B. Askew E. W. Drinkard Montgomery.......... Sellers.......... ..... J. C. Mizell -Pike................ Russell............. Troy................ Pittsview............ H. W. Ballard F. P. Pitts The directions sent to each experimenter stated that the land employed for this test should be level and uniform, not manured in recent years, not in cowpeas the preceding year, that it should be representative of large soil areas in its, vicinity. The need of perfect uniformity and standard treat- and 244 ment for all plots (except as to kind of fertilizer used) was emphasized. Fertilizers were applied in the usual manner-that is, drilled before planting, except nitrate of soda which was directed to be applied .when the plants were 6 to 10 inches high. THE FERTILIZER S USED. The following prices are used, as representing approximately the average cash price in local markets during the last few years: Per Ton. Acid phosphate (14 per cent. available) . ............. Cotton seed meal ........... ............ Kainit ................... Prices naturally vary in different localities. $14.00 $30.00 $14.00 Any one can prices substitute the cost of fertilizers in his locality for the given above. In each experiment three plots were left unfertilized, these When these yields differed widely being plots 3, 7, and 11. the experiment was classed as inconclusive. The increase on plots 4 to 6 is calculated on the assumption that the gradation in fertility is uniform from plots 3 to 7; likewise the increase is calculated for plots S to 10 inclusive.* The following table shows what kind and amounts of fertilizers were used on certain plots; the number of pounds of nitro*In other words instead of calculating the increase merely any plot from the average yield of by subtracting the yields the three unfertilized plots, (which would be incorrect and misleading unless all three unfertilized plots afforded practically the same yield), the following method is used as a means of making allowance for variations in the natural fertility of the different plots:The difference between the yields of unfertilized (1). plots 3 and 7, or between unfertilized plots 7 and 11 is divided by 4, because this difference must be distributed over the four intervening plots. (2). This quotient is then added to the yield of the poorest of this unfertilized pair, thus giving the corrected or calculated yield (if unfertilized), for the fertilized plot adjacent to the poorest unfertilized one. Similarly the yield of the poorest unfertilized plot is increased by twice and three times the above quotient as a means of calculating the corrected anfertilized yield on the plots occupying respectively second and third positions from the poorest unfertilized plot of the pair. Now these calculated yields, (if the plots were un(3). fertilized), are subtracted in regular order from the corresponding actual yield, thus giving the most accurate measure known for the increase due to the fertilizer. :of 245 gen, phosphoric acid, and potash supplied per acre by each fertilizer mixture; and the percentage composition and cost per ton of each mixture the latter being given in order that these mixtures may be readily compared with various brands of prepared gutanos. Pounds per acre of fertilizers, nitrogen, phosphoric acid, and potash used and composition of each mixture. FECOTINTFETLIESMIXTURE ____ _______________ ______________ O~r COST OF ZER S FERTILI- d Q IKIND I z 0 w Lbs Lbs. Lb. bs 1 2+0 Cotton Inz seed 100 lbs. meal--------c. s. meal* 13.58 6.79 5.6 .817 3 4 $3.C 30 2 240 (Acid In phosphate-_______.._ 100 lbs. acid~ phos.150 36.12_ _ 4C0 .6 4 200 K ainit In -------- -------200 C ttonseed -----eal ---100 lbs. kainit ------ --- 24.6 '_____ __ _1 .3 4.8 35 5i 200 Cotton seed me al ------poshae_____ 1 13.58 'mit. 3.09 95 In 100 lbs. above 8 6 200 Cotton seed 240 meal Aci phsphte---. ----1358 .7 2.1 In10lsobv 6i it 3-.18 ------ .0 ------ 2.8 ----- 200 Kainit -- 5 *Avrae-f anyanlyis 1~utn2 2 In allCotonheedhspmealaci 10?0 lbs. above mixt. 13.58onsee5.76 2.1 654 .3 aa3.54 le 68i 240acidrsphoaem36.12usome14.00ewor1am hs tr nI bs gn,10 an caneth 12.30frniroeit thn oth amna100ivlbs.sabymuli Ihi 3.39 ng 14 .3 2044 246 PRICE ASSUMED FOR SEED COTTON. The price assumed is $14.00 per ton for seed, and 10 cents per pound for lint. This is equal to 3.8 cents per pound of per cent of lint. Deducting seed cotton turning out 33 1 10 cents per pound as the average cost of picking and ginning, and we have left 3.2 cents as the net value per pound of the increase of seed cotton due to fertilizers. This latter is the figure used in all financial calculations. SUMTER COUNTY, 12 MILES SOUTH OF GEIGER. E. A. GILBERT. Light colored stiff branch-bottom with red subsoil. This land has been long in cultivation. The preceding crop was corn. Rust and boll rot (anthracnose) did some injury; but caterpillars did little damage. The stand was good. All fertilizers were profitable. The most profitable combination was acid phosphate and kainit, affording a profit of $12.75 per acre. Almost equally profitable ($11.42, $11.16, an:d $10.16 per acre) were the complete fertilizers. Kainit was most effective, being credited with an average increase of 274 pounds of seed cotton per acre, as compared with an increase of 156 pounds for acid phosphate and 133 pounds for cotton seed meal. The percentage of profit for the investment in fertilizer is 408S per cent in the case of a mixture of acid phosphate and kainit; 188 per cent for the complete fertilizer (Plot 9), and 205 per cent for the complete fertilizer containing a half ration of kainit. See page 247. Evidently fertilizer is a highly profitable investment on this soil. Nitrate of soda, applied June 16th, was slightly less effective than was cotton seed meal. Increase of seed cotton when cotton seed meal was added: To unfertilized plot ................................ To acid phosphate plot ................................ To kainit plot ........................ ............. 176 lbs. 156 lbs. 140 lbs. To acid phosphate and kainit plot ....................... Average increase with cotton seed meal .................. 58 lbs. 133 lbs. 247 .Increase To To To To of seed cotton per acre when acid phosphate was unfertilized plot...................................88 cotton seed meal..................................68 kainit plot.......................................275 cotton seed meal and kainit plot...................193 added: lbs. lbs. lbs. lbs. lbs. Average increase with acid phosphate...................156 increase of seed cotton per acre when kainit was To unfertilized plot..................................214 To cotton seed meal plot ............ .......... To acid phosphate plot................................401 To cotton seed meal and acid phosphate plot............303 Average increase with kainit.......................... Increase from use of different quantities of added: 178 lbs. lbs. lbs. lbs. 274 lbs. 303 lbs. lbs. 11 lbs. 58 lbs. 47 lbs. 000 kainit: To use of 200 pounds kainit ............................ To use of 100 pounds kainit...........................273 Increase from use of nitrate of soda.... ................... Increase from use of cotton seed meal ..................... Cotton seed meal better by ................................. o0 Experiments at Geiger and Knoxville KiN ponskiit.... 00) GEIGER KNOXVILLE O p O j.., 2 S V p t -o O V > " 0 a KN o. *5e Lbs. U- ;_1 0t- Q'4-. 0- Lbs. Lbs. Lbs. 1 2 3 4 5 200 240 000 200 200 200 200 000 8 4 200 240 200 200 240 100 000 240 100 Cotton seed meal Acid phosphate..._ No fertilizer---Kii Cotton seed meal 240 Acid phosphate- 488 400 312 520 544 54 176 $ 2.63 88 1.14 214 24 24 5.45 3 13 3.3 792 704 544 560 872 82 Lbs. 248 160 - $ 4.94 3.44 12 -1.02 320 5.5 20 .6 6 7 Cotton seed meal Kainit_____ No fertilizer-- -Acid phosphate 648 288 776 354 489 547 517 6'.93 12.57 12.42 11.16 896 680 768 784 340 130 228 254 6.48 1.08 1 .22 2.75 9 10 11 12 Cotton seed meal) Acid phosphate 832 _ ) Kainit___ Cotton seed meal Acid phosphate 800 KainitNo fertilizer-----282 Acid phosphateKainit-----752 ____520 401.6 98 48 81 100 Nitrate of soda 47_1.1_28 40 81 248 GREENE COUNTY, 16 MILES NORTH OF EUTAW NEAR KNOXVILLE. T. H. CHAMBERS. Gray sandy land, with red clay subsoil. This land has been cleared for about 60 years. The preceding crops were oats followed by corn. The stand of cotton was good. There was no rust reported. The most profitable application was the complete fertilizer containing nitrate of soda. (Plot 12,) which afforded a profit of $8.1& per acre, or 188 per cent on the investment in fertilizers. The most profitable single application was cotton seed meal, which gave a profit of $7.91 per acre, or 165 per cent on the investment in fertilizers. See page 247. The average estimated increase of seed cotton per acre was 209 pounds for cotton seed meal; 60 pounds for acid phosphate; there was a loss of 5 pounds where kainit was used. Nitrate of soda applied June 14th was much more effective than an earlier and larger application uf cotton seed meal. Increase of seed cotton per acre when cotton seed meal was added: To To To To 248 lbs. .............................. unfertilized plot lbs. acid phosphate plot............................160 .................................. 328 lbs. kainit plot lbs. acid phosphate and kainit plot....................98 Average increase with cotton seed meal................ Increase of seed cotton per acre when acid phosphate was To 'unfertilized added: 209 lbs. 160 lbs. plot.................................. To cotton seed meal plot................... To kainit plot......................................... .. . ....... 72 lbs.. 118 lbs. To cotton seed meal and kainit plot....................11 lbs. Average increase with acid phosphate........,......... 60 lbs.. Increase of seed cotton per acre when kainit was added : To unfertilized plot................................ To cotton seed meal plot ............................ .................. To acid phosphate plot ........... To cotton seed meal and acid phosphate plot ...... .....- 12 lbs. 92 lbs. 30 lbs. 92 lbs. Average increase with. kainit................... Increase from use Increase from use of nitrate. of Nitrate better by of cotton seed meal soda. . -5 lbs. .......... ....... ......... ... ......... 98. lbs. 252 lbs. 154 lbs. ..................................... 249 SUMTER COUNTY, 4 MILES EAST OF LIVINGSTON. W. L. ENNIs. Sandy loam, yellow clay subsoil. This land was in cotton in 1910. There was some damage by the cotton caterpillar and wilt. The stand was fairly good. The figures here published do not include the first picking, the seed cotton of this picking having been accidentally mixed by laborers. Fortunately the first picking included only a small part of the total crop. Mr. Ennis believes that the yields made at second and third pickings represent fairly well the relative effects of the different fertilizers. The most profitable application was kainit applied alone, which afforded an increase worth $9.10 per acre in the later pickings, or 650 per cent on the investment in fertilizers. In all combinations where kainit was included the applications were highly profitable. The average estimated increase of seed cotton in the second and third pickings was with cotton seed meal, 50 pounds per acre; with acid phosphate, 26 pounds; and with kainit 310 pounds. Nitrate of soda, applied May 28th, afforded in the last two pickings a larger yield than did cotton seed meal. 250 Yields and increases in crop of second and third pickings at Livingston Q 1 200 Cotton ncreseed a) 96 $ SKIND meal a)Q 400 .0 Co SPLbs. 200 240 000 200 200 240 200 200 000 240 200 200 240 200 200 240 100 1 2 3 4 *6 7 r 8 9 110 11 Cotton seed meal __ Acid phosphate____ No fertilizer------Kainit Cotton seed meal Acid phosphateCotton seed meal Kainit__________ No fertilizer------Acid phosphate-Kainit Cotton seed meal Acid phosphate Kainit__________ Cotton seed meal Acid phosphate- _ Lbs. 400 376 .304 Ls 9 72 328 80. 392 370 0 .62 9_10 -212 608 336 624 208_ 584 616 432 23 2_ 520 - 8_14 8_76 --------- 396 6_59 -12 0 00 240 100 100 --No f er t ili ze r Kainit__. - 206 __ 1.21 - - .. Acid phosphate-Kainit Nitrate of soda 288 434 Increase of seed cotton when cotton seed meal was added: To unfertilized plot...................................96 To acid phosphate plot..... ............................ To kainit plot ........................................ To acid phosphate and kainit plot....................... lbs. 8 lbs. 64 lbs. 26 lbs. Average increase wit/h cotton seed meal................ 50 lbs. :Increase of seed cotton per acre when acid phosphate was added: 72 lbs. To unfertilized plot................................... To cotton seed meal plot..............................-16 To kainit plot ........................................ To cotton seed meal and kainit plot ...................... lbs. 42 lbs. 4 lbs. Average increase with acid To unfertilized plot phosphate .................. 26 lbs. 328 lbs. Increase of seed cotton per acre when kainit was ................. added: .................. To cotton seed meal plot .............................. 296 lbs. To acid phosphate plot................................ 298 lbs. To cotton seed meal and acid phosphate plot..............316 lbs. Average increase with kcinit .......................... 310 lbs 251 increase from use of different quantities of To use 200 pounds kainit ......... To use 100 pounds kainit .......................... kainit: . .... 316 lbs. 126 lbs. Increase from use of nitrate of soda....................108 Increase from use of cotton seed meal....................26 Nitrate better by.................................82 lbs. lbs. lbs. HALE COUNTY, 1 MILE NORTHEAST OF GALLION. J. H. COLLINS. Black prairie upland. For several years preceding, the land has been in Johnson grass. cut for hay; preparation consisted of broadcast plowing, harrowing, bedding, and use of sweep. The stand wagood, but the crop was late in coming up. Worms were not seriously injurious, but the crop was injured by excessive rain and shedding in August. Nitrate of soda, applied June 20th, proved practically of the same value as the earlier application of twice as much cotton seed meal The only really profitable application was a mixture of acid phosphate and kainit (Plot 8), which afforded a profit of $2.20 per acre, or a profit of 71 per cent on the amount invested in fertilizer. Increase of seed cotton when cotton seed meal was To unfertilized plot .............................. To acid phosphate plot .............................. To kainit plot......................................... added: 80 lbs. 92 68 lbs. lbs.. To acid phosphate and kainit plot ....................... Average increase with cotton seed meal................ Increase of seed cotton per acre when acid phosphate was 16 lbs. 64 To To To To unfertilized plot ................................ cotton seed meal plot ............................ kainit plot ..................................... cotton seed meal and kainit plot ................... added: 40 52 110 58 lbs~ lbs. lbs. lbs.. lbs. Average increase with acid phosphate .................. Increase of seed cotton when kainit was To To To To unfertilized plot ................................ 58 lbs.. cotton seed meal plot............................ 46 lbs.. acid phosphate plot ............................. 128 lbs. cotton seed meal and acid phosphate plot............ 52 lbs. 71 lbs. added: 65 lbs. Average increase with kainit ........................ 25 2 Increase from use of different quantities of kainit: lbs. lbs. 16 lbs. lbs. lbs. To use of 200 pounds kainit............................52 To use of 100 pounds kainit............................29 Increase from use of cotton seed meal in complete fertilizer Increase from use of nitrate of soda......................23 Nitrate better by.................................7 Experiments in Hale and Montgomery Counties GALLION 4Ja 0 CU MCGEHEES - _ J 0 O KIND o ° -a-4-J Z~ Lbs. 200 Cotton seed meal 240 Acid phosphate_ 4_J Lbs. 96 $ 0.07 192 4.46 1 2 Lbs. 304' 264 Lbs. 80 8- .44 40 3 4 55 000 No fertilizer---200 Kainit______ 200 Cotton seed meal 240 Acid 6 7 phosphate10 - 224 280 352 - .40 .46 -. 45 .7 Lbs. 352 448 58 13 2 25_ 501 68 84 41 224 10 2 5.77 .2 22 200 Cotton seed meal S200 Kainit 00 0 N o f er t il iz er 34 j____} - 2 1 6_3 9 J 10 24 Acid phosphate200 Kainit 10 200 Cotton seed meal 24 100 Kainit 2O0 Cotton s e~d meal 416 401. 248 184 161 -. 19 - 629 408 120- 288 288 3.14 3.84 11 12' Acid phosphate ---No fertilizer____ 23 000 240 Acid phosphate_ 100 Kainit _____ 100 Nitrate of soda5 416 168 .50 368 284 4.06 MONTGOMERY COUNTY, 3 MILES SOUTHEAST OF McGEHEES. DR. FRANK MCLEAN Poor gray prairie soil. This test was located on the poorest spot that could be found adjacent to the public road on Dr. McLean's plantation, eleven miles south of Montgomery. The comparatively small yields 253 .are due not alone to the thinness of the soil, but also to the late date of planting, May 6th. The preceding crop was corn. An inspection in August showed that the plots receiving -kainit had much less rust than others, and that there was less rust where 200 pounds of kainit per acre was used than where 100 pounds was employed. However, the increase in the rop proved to be the same for 100 pounds as for 200 pounds ,of kainit per acre in a complete fertilizer. At the same time it -was noticed that the phosphate had hastened the maturity and -that on the kainit plots both bolls and plants were apparently -larger than on other plots. Every fertilizer was profitable, whether applied alone, or in -pairs, or all together in a complete fertilizer. The most profitable application was a mixture of cotton proft of seed meal and kainit (Plot 6),,which afforded $12.27 per acre, or a profit of 279 per cent on the amount -invested in fertilizer. Of the several fertilizers. kainit was the most effective, affording an average increase of 284 pounds of seed cotton per -acre, as against an average increase of 192.mounds from acid pounds from cotton seed meal. phosphate, and of The stand was very uniform. Apparently Plot 9 was below -the average in fertility and its results are excluded from this a 170 discussion. -Increase of seed cotton when cotton seed meal was added: 96 lbs. 118 lbs. 297 lbs. .... ................ To unfertilized plot .. .... ..................... To acid phosphate plot.. To kainit plot.... ................................... Average increase with cotton seed meal ................. Increase of seed cotton per acre when acid phosphate was added: 170 lbs. 192 lbs. lbs. 171 lbs. To unfertilized plot ................................... To cotton seed meal plot..............................214 .......... To kainit plot...................... Average increase with acid phosphate.................. -Increase of seed cotton per acre when kainit was To unfertilized plot ... . ... .................................. "....... added: 192 lbs. 224 lbs. To cotton seed meal plot.............................. 425 lbs. To acid phosphate plot....................... Average increase witlh kainit ... 203 lbs. 284 lbs. ......................... 254 PERRY COUNTY, /4 MILE SOUTH OF HAMBURG.. J. H. LEE. Red clay soil with red clay subsoil. This land was pastured in 1909 and 1910. The stand was good. Some damage was done by the cotton caterpillar. The summer season was too wet. The yield was low on all where acid phosphate and kainit were used. Cotton seed meal gives the best yields, showing an average increase of 23 pounds of seed cotton per acre, against 77 pounds for acidphosphate, and 27 pounds for kainit. The cotton seed meal used albove gave a profit of $10.57 per acre, or 352 per cent on the investment in fertilizers. See page 255. plots Increase of seed cotton when cotton seed meal was To unfertilized plot................................424 To acid phosphate plot................................44 To kainit plot......................................404 To acid phosphate and kainit plot......................78 added: lbs. lbs. lbs. lbs. Average increase with cotton seed meal..............238 lbs. Increase of seed cotton per acre when acid phosphate was To unfertilized plot.................................160 To cotton seed meal plot..........................-220 To kainit plot ........................................ To cotton seed meal and kainit plot ...................- added: lbs. lbs. 40 lbs.. 286 lbs. Average increase with acid phosphate.................-77 lbs. Increase of seed cotton per acre when kainit was added: To unfertilized plot.................................. To cotton seed meal plot.............................. To acid phosphate plot.................. 3 lbs. 10 lbs.. lbs.. ............. -90' To cotton seed meal and acid phosphate plot..............-56 lbs. Average increase withs kainit ........................ Increase from use of different quantities of To use 200 pounds kainit.............................-56 To use 100 pounds kainit............................-130 Increase from use of cotton seed meal .... .. Increase from use of nitrate of soda .............. -27 lbs. lb.. lbs.. kainit: ........... ....... Nitrate better by................................. 78 lhs.. 204 lbs._ 126 lbs.. 255 Experiments in Perry County IAMBURG MARIO " ~O k KIND 0 0 O OO 5) .. 4-d - 5 2oC 4-j -J - z 1 2 3 4 5 6 7 8 9 W ~5) C5+ Lbs. 200 240 000 200 200 Lbs. Lbs. Cotton seed meal 824 424 $10 57 3.44 560 160 Acid phosphate No fertilizer400______ .4 me_____ 440 .30 Kainit Cotton seed meal 624 204 1.85 240 Acid phosphate434 9.19 tton t864 seed2 00 000 No fertilizer____ 440 464 70 -84 200 Kainit _ s ae_ Lbs. 716 472 448 40 368: Lbs. 268 24 68 $ - 5.58 .91 14 -3.66 } 768 42 456 584 338 6.42 -1.74 -42 180 200 Cotton seed meal 240 200 10 Acid phosphate- _ Kainit 200 240 )---- 496 148 -134 -.32 2.88 Cotton seed meal Acid 11 100 Kainit_____ 000 No fertilizer -___ Kainit_____ phosphate- _ 376 256 456 74 -3.01 552 158 384 .200- 12 ? 100 100 1.52. 684 264 3.56 Nitrate of soda _ PERRY COUNTY, 2/2 MILES SOUTH OF MARION: GEORGE W. THOMAS. red clay subsoil. Red sandy loam This land has been cleared about 80 years. The preceding crop was corn. Very little shedding was reported, and no a good stand, with the same damage from rya t. There number plants on every plot. There was no damage reported from the cotton caterpillar. Nitrogenous fertilizers proved to be the governing factor on this soil. Kainit and acid phosphate alone or in combination were not very profitable, with of wxas largest butt comnplete fertilizers imadei good yields. profit, per acre, was afforded by a mixture of cotton seed meal and kainit. Cotton seed meal alone gave next per acre, to the highest yield, affording a profit of for a completefertizer. The against aprofit of $2.88 $6.42 TIhe $5.55 256 average estimated increase of seed cotton per acre was 164 pounds for cotton sead meal; there was an average loss of 104 pounds for acid phosphate, and an gain of pounds of seed cotton per acre for kainit. Nitrate of soda applied July 10th, was more effective than cotton seed ncal. average 84 Increase of seed cotton when cotton seed meal was To unfertilized plot............ ............. added: . To acid phosphate plot ........ . ........ To kainit plot.... .............................. To acid phosphate and kainit plot....................138 268 lbs. . 92 lbs. 340 lbs. lbs. Average increase with cotton seed meal...............164 lbs. Increase of seed cotton per acre when acid phosphate was To unfertilized plot ............................... To cotton seed meal plot...........................336 To kainit plot .................................. To cotton seed meal and kainit plot........ Increase of seed cotton rer acre when kainit was added : To unfertilized plot .............. added; lbs. 24 lbs. 44 lbs. 158 lbs. .......- Average increase with acid phosphate ...............,...........-2 104 lbs. lbs. To cotton seed meal plot ........................... 70 lbs. To acid phosphate plot.............................. 18 lbs. To cotton seed meal and acid phosphate plot........... 248 lbs. Avuerage increase withz kainit . .......................... 84 lbs. Increase from use of different quantities of kainit: To use of 200 pounds kainit.......................... To use of 100 pounds kainit........................ Increase from use of cotton seed meal .:. Increase from use of nitrate of soda ...... Nitrate better ........... ,... .......... ...... 248 lbs. 226 lbs. 13 lbs. 224 lbs. 106 lbs. by ............. ............... 257 DALLAS COUNTY, 6 MILES NORTH OF SELMA. T. G. KENAN. Chocolate colored clay loam with clay subsoil. This land has been in cultivation for about 90 years. The preceding crop was corn. There was no damage reported from rust. The complete fertilizers containing cotton seed meal were most profitable. Plot 10 affording a profit of $16.32 per acre, or 305 per cent on the investment in fertilizers. three fertilizing materials were needed. Apparently all The average increase of seed cotton per acre was, for cotton seed meal 131 pounds; for acid phosphate 122 pounds; and for kainit 235 pounds. One hundred pounds of kainit was fully as affective as 200 pounds. Cotton seed meal gave much better results than nitrate of soda applied June 10. Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot ............. ............. 376 lbs. To acid phosphate plot ..................... ............32 lbs. To kainit plot .................................64 lbs. To acid phosphate and kainit plot..................... 642 lbs. Average increase with cotton seed meal ................. 231 lbs. Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot ............. ... ............. 424 To cotton seed meal plot .................. ............. 16 To kainit plot ..................... ............330 To cotton seed meal and kainit plot .................... 376 Average increase with acid phosphate .................. lbs. lbs. lbs. lbs. 122 lbs. Increase of seed cotton per acre when kainit was added: To unfertilized plot ............... .............. 356 lbs. To cotton seed meal plot ...............................--84 lbs. To acid phosphate plot ............................... 398 lbs. To cotton seed meal and acid phosphate plot............ 276 lbs. Average increase with kainit .......................... 236 lbs. 258 Increase from use of different quantities of To use of 200 pounds kainit...........................276 To use of 100 pounds kainit..........................286 kainit: lbs. lbs. Increase from use of cotton seed meal....................642 316 lbs. Increase from use of nitrate of soda ...................... lbs. lbs Nitrate better by.................................326 Experiments in DallasCounty SELMA CENTRAL MILLS -a O 2 a O -__ -__ O o KIND a O b Oa 1 2 3 Lbs. 200 Cotton seed meal 240 Acid phosphate __ 000 No fertilizer------- Lbs. .928 Lbs. 376 $9.03 Lbs. 1040 Lbs. 128 976 552 424 _912 12.17 9.99 992 992 80 80 $ 1.10 .88 1.16 4 5 6 6 7 ( 10 11 12 200 200 240 200 200 000 240 200 200 240 200 200 240 000 Kainit------------Cotton seed meal Acid phosphate Cotton seed meal t Kainit__.__ No fertilizer------Acid phosphate Kainit3__6 Cotton seed meal Acid phosphate_ Kainit Cotton seed meal Acid phosphate No fertilizer---Acid 896 920 356 392 --1.10 7.86-1024 9 5 15.30 16.32* 112 292 808 0 9 50491 66 536 2 1184 1200 528 8966_ 1136 208 240 _ _ 668 678 .5 2.30 S100 Kainit 1176 944 1184 240 100 ? 100 phosphate --2.80 Kainit----- Nitrate of soda - _ 808 352 6.38 240 DALLAS COUNTY, 1 1-4 MILES FROM CENTRAL MILLS. C. E. SHUPTRINE. Black post oak bottom land, stiff clay. This land has been cleared and cnltivated in cotton for 15 years. There was a good and nniform stand. No fertilizers gave any large net profit, the largest profit, $2.80 per acre, resnlting from a complete fertilizer (on Plot 259 12) containing acid phosphate, nitrate of soda, and 100 pounds of kainit, per acre. The average increase in seed cotton per acre was 72 pounds for cotton seed meal; 48 pounds for acid phosphate; and 20 pounds for kainit. However, all three of these ingre4ients afforded larger increases when used together in a complete fertilizer. Nitrate of soda applied Tune equal in effect to cotton seed meal. The yield was greater with 100 pounds than with 200 pounds of kainit per acre. 25 was Increase of seed cotton per acre when cotton seed meal was added: To: unfertilized plot.................................128 lbs. To acid phosphate plot...............................32 lbs. To kainit plot.....................................-24 lbs. To acid phosphate and kainit plot.....................152 lbs. Average increase with cotton seed meal..............72 Increase of seed cotton per acre when acid phosphate was added: lbs. lbs. lbs. lbs. lbs. To To To To unfertilized plot..................................80 cotton seed meal plot..............................16 kainit plot.......................................24 cotton seed meal and kainit plot...................152 Average increase with acid phosphate.................. Increase of seed cotton per acre when kainit was To 48 lbs. 80 lbs. unfertilized added: lbs. 24 lbs. 96 lbs. plot.................................. To cotton seed meal plot............................-72 To phosphate plot ...............................To cotton seed meal and acid phosphate plot............ acid Average increase with kainit........................ Increase from use of different quantities of To use of 200 pounds kainit...................... To use of 100 pounds kainit........................... 20 lbs. .... .. ...... ..... .96 lbs. 128 lbs. 152 lbs. 152 lbs. 00 lbs. kainit: Increase from use of cotton seed meal.... .......... Increase from use of nitrate of soda................. Nitrate better by.................................... 260 WILCOX COUNTY, 7 MILES WEST OF CAMDEN. G. M. COOK. Sandy loam. This land has been cleared for 40 years. The preceding crop for several years has been cotton. The stand was good. Complete fertilizers were profitable as were also all applications of single and paired ingredients of a complete fertilizer. The highest estimated profit was on plot 12, where a complete fertilizer containing nitrate of soda afforded a profit of $9.46 per acre, or 193 per cent on the investment in fertilizers. The average estimated increase of seed cotton per acre was 189 pounds for cotton seed meal; 129 pounds for acid phosphate; and 137 pounds for kainit. Nitrate of soda was decidedly more effective than was cotton-seed meal. The results suggest that, at least in 1911, the use of 100 pounds of kainit per acre in a complete fertilizer was more advisable than a larger amount. Increase of seed cotton when cotton seed meal was To "unfertilized plot.............................128 To acid phosphate plot ............................ 336 To kainit plot ....... ........................... 248 To acid phosphate and kainit plot .......... ... 44 Average increase with cotton seed meal..............189 Increase of seed cotton per acre when acid phosphate was. To unfertilized plot................................ added: lbs. lbs. lbs. lbs. lbs cotton seed meal plot ............................. To kainit plot..................................... To cotton seed meal and kainit plot .................. Increase of seed cotton per acre when kainit was added : To unfertilized plot..................... ........... To cotton seed meal plot ................... ........ To acid phosphate plot 'o Cotton added: 24 232 lbs. 232 lbs. 28 lbs. lbs. Average increase withs acid phosphate."............ 129 lbs. 76 lbs. 196 lbs. 284 lbs. ....................... ..... To seed meal and acid phosphate plot.............-8 lbs. Average increase with kainit............137 Increase from use of cotton seed meal ........... Increase from use of nitrate of soda ................... . ........ ... lbs. 44 lbs. 146 lbs. 102 lbs. Nitrate better by ...................... 261 Experiments at Camden and Allenton CAMDEN ALLENTON O 0 70 o a KIND KIND a 1 2 3 4 5 S240 5 Lbs. 200 240 00 0 200 200 Lbs. Cotton seed meal 432 Acid phosphate__ 328 N o fe rtiliz e r - - - - - - - 30 4 Kainit_______ 384 640 Lbs. 128 24 7 324 $ 1.10 -. 91 . Lbs. 976 896 Lbs, 152 72 $ 1.86 .62 824 824 16 272 2W9 6 7 8 9 IAcid phosphate S 2u0 Cotton seed meal 200 Kainit__________ 000) No fertilizer------240 Acid phosphate 200 Kainit _..________ 200 Cotton seed meal 240 Acid phosphate 200 Kainit__________ 6Cottonseedeal 672 360 6.841064 5.97 4.02 4.53 .89 I 1054 759 320 632 680 308 352 6.78 5.18 696-35-4.20 772 68 3.90 200 Cotton seed meal 10 11 12 240 Acid phosphate __ 100 Kainit__________ 000 No fertilizer--240 Acid ) 648 336 '84141 316 .4.73 800 124 141 448 9.46 648 952 304.4.85 phosphate-.1 100 Kainit 100 Nitrate of soda _ 784 WILCOX COUNTY 4 MILES NORTHWEST OF tELENTON. J. H. JONES, JR. 1 ed clay loam. The preceding crop h r- several years has been cotton. There was no rust or damage from insect attacks. The stand was poor on account of xind and hail in Plots 5, 6, 7, 8, 9 and 10 were the most. deficient. Plot had 759 plants, July.- which was an average nu nber 'for a correct stand and with ;'t 11 this as a basis the actual .,ield on the plots mentioned above were corrected accordingly. Cotton seed meal gave the best results in each plot where was used. Kainit and acid phos- pliate were not profitable as indicated by this test. 262 The'average estimated increase of seed cotton from the use of cotton seed meal was 180 pounds; with acid phosphate there was an average loss of 18 pounds; and with kainit there was an average gain of 42 pounds of seed cotton per acre. Increase of seed cotton when cotton seed meal was To unfertilized plot.................................152 added: lbs. To acid phosphate plot...........................200 To kainit plot...................................263 To acid phosphate and kainit plot...................103 Average increase with cotlon seed meal.................180 lbs. lbs. lbs. lbs. Increase of seed cotton per acre when acid phosphate To unfertilized plot..............................72 lbs. To cotton seed meal plot..........................120 lbs. To kainit plot...................................51 lbs. Po cotton seed meal and kainit plot...................211llbs. Average increase with acid was added: phosphate ................... -18 .lbs. 16 lbs. 127 lbs. -107 lbs. -204 lbs. 42 lbs. Increase of seed cotton per acre when kainit was To unfertilized plot................................ To cotton seed meal plot ............................. To acid phosphate plot .............................. To cotton seed meal and acid phosphate plo Averrage. increase with kainit ... .................. Increase from use of -cotton seed meal ............ Increase from use of nitrate of added: ............. ......-......... ........ soda............ 283 103 lbs. lbs. Nitrate better by .................................... 180 lbs. 263 WILCOX COUNTY, 300 YARDS NORTH OF SUNNY SOUTH. J. D. CARMICHAEL. Gray loam upland with yellow clay subsoil. This field has been in cultivation for about twenty the two preceding crops were cotton. Mr. Carmichael made no report of damage from insect or rust, but reports serious loss from unfavorable weather and from shedding in August. The most profitable increase, $10.04 per acre, or 323 per cent acid on the investment in fertilizer, resulted from a mixture phosphate and kainit. The mixture of cotton seed meal and acid phosphate afforded a net profit of $4.79 per acre, or 100 per cent on the investment in fertilizer. The average increase in pounds of seed cotton per acre atto kainit 108 tributable to acid phosphate was 180 pounds; aud to cotton seed meal only 15 pounds. Nitrate of soda, applied June 12th, was largely ineffective years; of pounds; Increase of seed cotton when cotton seed was To unfertilized plot...................................00 To acid phosphate plot...............................208 To kainit plot.......................................96 To acid phosphate and kainit plot.....................-246 added: lbs. lbs. lbs. lbs. lbs. Average increase with cotton seed meal................15 Increase of seed cotton per acre when acid phosphate was To unfertilized plot...................................88 To cotton seed meal plot .............................. To kainit plot........................................ To cotton seed meal and kainit plot............ .........- added: lbs. 296 lbs. 338 lbs. 4 lbs. Average increase with acid phosphate........... ... . .. 180 lbs. Increase of seed cotton per acre when kainit was added: 72 168 322 132 lbs. lbs. lbs. lbs. To To To To unfertilized plot ................................... cotton seed meal plot .............................. acid phosphate plot................................ cotton seed meal and acid phosphate plot ...........- Average increase with kainit ........................ Increase f rum use of different quantities of kainit : To use of 200 pounds kainit.........................-132 To use of 100 pounds kainit.........................-162 Increase from use of cotton seed meal........ .. Lucrease from use of nitrate of soda....................Cotton seed meal better by.............................. .........-- 108 lbs. lbs. lbs. 100 lbs. 56 lbs. 44 lbs. 264 Experimenis in Dallas and Wilcox Counties ORRVILLE SUNNY SOUTH O0 4- KIND -, 0 O:Z o aa 0 N a-d' CC -4 -O 7: Lbs. Lbs. 200 Cotton seed meal _ 592 240 Acid phosphate- _ 544 3 000 No fertilizer -----448 4 200 Kainit_________ 600 200 Cotton seed meal 760 :1 240 Acid phosphate_ 2 Cotton seed meal is200 6 2(0 Kainit --- _ . 640 7 000 No fertilizer 584 S-Acid phosphate 800 2O0 ainit f 200 Cotton seed meal 9 ' 240 Acid phosphate_ 904 200 Kainit______ 10i 200 Cotton seed meal 1 240 Acid phosphate 840 1 2 Lbs. 144 $ 1.61 96 1.39 118 244 2.38 3.13 Lbs. 496 584 496 608 872 784 064 816 784 648 Lbs. 000 $ 0.00 88 1.14 - 72 296 168 410 164 .90 4.79 .98 1004 -. 83 90-1.52 212 312 244 -- 3.70 3.90 2.43 100 Kainit 11 000 S No fertilizer--_-_-_ 134-1.09 _ - 600 12 240 Acid phosphate 100 Kainit -100 Nitrate of soda _ . J 800 200 1.52 1008 360 6.64 DALLAS COUNTY, 4 MILES SOUTH OF ORRVILLE. B. F. WILSON. Gray sandy land with yellowish subsoil. This field had. been cleared about forty years, but was not cultivated in 1908 and 1909. Rust was injurious, but insect damage was reported. The stand was good. The most profitable increase ($3.70 and $3.90) was from the complete fertilizers containing cotton seed meal (Plots 9 and 10). The average increase of seed cotton per acre was.128 pounds for acid phosphate ; 91 pounds for cotton seed meal ; and 62 pounds for kainit. Cotton seed meal was superior to nitrate of soda applied June 15, by 44 pounds of seed cotton per acre. no 265 Increase of seed cotton when cotton seed meal was To To To To unfertilized plot..............................144 lbs. acid phosphate plot...........................148 lbs. lbs. kainit plot................................-28 acid phosphate and kainit plot..................... 100lbs. added: Average increase with cotton seed meal................91 Increase of seed cotton per acre when acid phosphate was To unfertilized.plot..............................96 lbs. To cotton seed meal .............................. 100 lbs. To kainit plot.......... ......................... 94 lbs. To cotton seed meal and kainit plot ................ added: lbs. 222 lbs. Average iiease with acid phosphate..................128 lbs. Increase of seed cotton when kainit was added: To unfertilized plot..............................118 lbs. To cotton seed meal plot ..........................54 lbs. To acid phosphate plot ............................. 116 lbs. To cotton seed meal and acid phosphate plot............ 68 lbs. Average increase with kainit......................... Increase from use 62 lbs. of different quantities of kainit: 68 lbs. 00 lbs. 100 lbs. .56 lbs. 44 lbs. To use of 200 pounds kainit ......................... To use of 100 pounds kainit ......................... ....... ...... Increase, from use of cotton seed meal ...... Increase from use of nitrate of soda......... .......... Cotton seed meat better by ................. 266 BUTLER COUNTY, 1-3 MILE SOUTH OF McKENZIE. J. C. ARANT. Light sandy loam, yellowish sandy subsoil. This land has been cleared for eleven years. The preceding crop was cotton. There was some damage from rust. The stand was good except on Plot 12, where there was some wilt. The complete fertilizers all afforded a satisfactory profit. The largest'increase was 500 pounds of seed cotton per acre from a mixture of cotton seed meal and acid phosphate. which returned a profit of $11.32 per acre, or 242 per.cent on the investment in fertilizers. The average estimated increase of seed cotton per acre for cotton seed meal was 185 pounds; for acid phosphate 266 pounds; while with kainit there was an average loss of 22 pounds of seed cotton. Increase of seed cotton when cotton seed meal was To unfertilizzd plot......... ...................... To acid phosphate plot......... ................... ................................... To kainit plot To acid phosphate and kainit plot....................56 added: 176 lbs. 372 lbs. 136 lbs. lbs. 185 lbs. Average increase with cotton seed meal ............... Increase-of To To To To seed cotton per acre when acid phosphate was added: lbs. lbs. lbs. lbs. unfertilized cotton seed kainit plot cotton seed 128 ................ plot............... meal plot.............................324 346 .. .................................. 266 meal and kainit plot ................... Average increase with acid phosphate................. 266 lbs. Increase of seed cotton per acre when kainit was added : .......................... To unfertilized plot.. To cotton seed meal plot ........................................ To acid phosphate plot.................. To cotton seed meal and acid phosphate plot ...........Average increase with kainit......................... -42 82 176 140 lbs. lbs. lbs. lbs. lbs. -22 267 Experiments at McKenzie and 8 Miles South of Troy MCKENZIE 8 M. S. OF TROY o 0 KIND N °0 DU20 1 2 3 4 5 6 8 : 9 10 11 S240 Lbs. 200 240 000 200) 200 200 200 000 240 200 200 240 200 200 240 100 000 240 100 100 Lbs. 464 Cotton seed meal 416 Acid phosphate No fertilizer288 268 Kainit Cotton h seed meal4 832 IAcid phosphate_ S 448 Cotton seed meal Kainit 376 No fertilizer__Acid phosphate 656 Kainit_________ Cotton seed meal 688 Acid phosphate-Kainit-_______ Cotton seed meal 704 Acid Kainit_-_____280 No fertilizer-____ Acid phosphate-ainit792 Nitrate of soda Lbs. 176 $ 2.63 .2.42 128 -42 500 94 304 360 400 6.65 5.44 7.42 2.74 Lbs. 768 632 504 904 Lbs. 264 128 $ 5.45 2.42 ---1044 370 212 11.32 776 2.10 ---------- 624 800 864 816 5 186 260 222 2.87 2.24 1.72 208 1.78 PIKE COUNTY, 8 MILES SOUTH OF TROY. R. P. RHODES. Gray land, clay subsoil. This land has been cleared for about 20 years. The preceding crop was corn. There was no damage from rust or insect attacks. There. was a good stand. 746 per The largest profit, $10.44 per acre, or a profit fertilizers was secured on the plot cent on the investment in receiving only kainit. The next largest profit was from using cotton, seed meal and kainit. Apparently potash was the constituent chiefly needed by this soil, while cotton seed meal was also helpful. Nitrate of soda, applied June 16 was of practically the same value as an early application of cotton seed meal. of 268 Increase of seed cotton when cotton seed meal was To unfertilized plot.................................264 To acid phosphate plot...............................84 To kainit plot......................................-28 To acid phosphate and kainit plot......................74 added: lbs. lbs. lbs. lbs. lbs. Average increase with cotton seed meal..................99 Increase of seed cotton per acre when acid phosphate was added: .128 -52 184 -82 lbs. lbs. lbs. lbs. To To To To unfertilized plot...... ........................... cotton seed meal plot............................. kainit plot ......................................cotton seed meal and kainit plot .................... Average increase with acid phosphate.................-48 lbs. Increase of seed cotton per acre when kainit was To unfertilized plot................................ To cotton seed meal plot........................... To acid phosphate plot............................. To cotton seed meal and acid phosphate plot........... Average increase with ainit......................... added: 370 78 58 48 lbs. lbs. lb's. lbs. 138 lbs. 48 lbs. 10 lbs. lbs. 60 lbs. Increase from use of different quantities of kainit : To use of 200 pounds kainit .......................... To use of 100 pounds kainit...................... Increase from use of cotton seed meal..................74 Increase .. from use of nitrate of soda...... ....... Cotton seed meal better by ................................ 14 lbs. 269 DALE COUNTY, 1 MILE SOUTH OF OZARK. J. W. BYRD. gray sandy loaim, with reddish clay subsoil. This land has been cleared for 60 years, and had been out of cultivation for 3 years prior to 1911. There was some rust on Plots 5 and 6. The stand was good. Kainit in every tion gave the largest yields. The highest estimated increase in yield was 606 pounds of seed cotton per acre with 640 pounds per acre of a complete fertilizer (Plot 9). This gave a profit of $13.31 per acre, or 219 per cent on the investment in fertilizers. The next largest profit,.$10.70 per acre, or 243 per cent on the investment in fertilizers, was on Plot 6, fertilized with a mixture of cotton seed meal and kainit. The average estimated increase of seed cotton per acre was 222 pounds with cotton seed meal; 141 pounds with acid phate; and 24 pounds with kainit. In a complete fertilizer, nitrate of soda was very slightly less effective than cotton seed meal; 200 pounds of kainit per acre was more profitable than half this amount. Light combina- phos- Increase of seed cotton when cotton seed meal was added: To To To To unfertilized plot..... .............................. acid phosphate plot................................208 kainit plot........................................ acid phosphate and kainit plot................... 172 lbs. lbs. 256 lbs. ".. 251 lbs. Average increase with cotton seed meal............... Increase of seed cotton per acre when acid phosphate was added: 222 lbs 128 164 139 134 lbs. lbs. lbs. lbs. To To To To unfertilized plot ................................... cotton seed meal plot.................... ..... kainit plot .... .................................... cotton seed meal and kainit plot.................... ...... Average increase with acid phosphate................. Increase of seed cotton per acre when kainit was To unfertilized plot.................................. added: 141 lbs. 216 lbs. ................ .. . ... 300 lbs. To cotton seed meal plot....... .......... .227 lbs. To acid phosphate plot...... ............. To' cotton seed meal and acid phosphate plot............ 270 lbs. Average increase with kainit......................... 254 lbs. 270 Increase from use of different quantities of kainit: lbs. lbs. ............. To use of 200 pounds of kainit.......................270 To use of 100 pounds of kainit.........................169 Increase from use of cotton seed meal......... Increase from use of nitrateuof soda.4........ Cotton seed meal better by............................... .. .......... 251 lbs. 210 lbs. 41 lbs. Experiments at Ozark and Dothan OZARK DOTHAN O C 0 , oaC o O o 4J 7 o 0 - C 1 1 2 20 ottn ee mel -o372 372 328 17 $2.5 6- 84 289 21200 Cotton seed meal 240 Acid phosphate 200 172 1282.42 624 152-3.18 200 200 240 6 200 200 000 8 240 H 200 S 200 9 240 12 Kainit___________ 436 Cotonsed ea Cotton seed meal 576 336 6.07- 76 256 Acid phosphate-(Cotton seed meal L 732 472 107 82 34 6.8 Kainit _ _ No fertilizer280da4 IAcid phosphate_ 64 5 8 80 32 85 1WainitEST OF DOTHAN. Cotton seed meal r fr 4 e . h e di Acid phosphate 896s 606d 13.31r1112s564 f11.7 -3.5 200eedctnpraefrcotton seed mealwa15pons? for240iAcidophosphatens ndfr ant 0pons 271 The largest profit, $11.97, or 197 per cent on the investment in fertilizers was made on Plot 9, which received (40 pounds per acre of a complete fertilizer. Increase of seed cotton per acre when cotton seed meal was added To unfertilized plot.................184 lbs. 104 lbs. To acid phosphate plot ................................ To kainit plot......................................144 lbs. 202 lbs. ................ To acid phosphate and kainit plot .. Average increase with cotton seed meal.159 Increase of seed cotton per acre when acid phosphate was To unfertilized plot ................................... To cotton seed meal plot...............................72 To kainit plot....................................... To cotton seed meal and kainit plot................... Average increase with acid phosphate .................. Increase of seed cotton per acre when kainit was added : To unfertilized plot ................................... To cotton seed meal plot ............................. To acid phosphate plot............................... To cotton seed meal and acid phosphate plot............. Average increase with kaintt............ ........... lbs. added: 152 lbs. lbs. 166 lbs. 224 lbs. 154 lbs. 196 156 210 308 lbs. lbs. lbs. lbs. .. 208 lbs. 272 COFFEE COUNTY, 8 MILES SOUTH OF BROCKTON. J. W. HARRY. Red clay loam, red clay subsoil. This land has heen cultivated for about 30 years. The preceding crop was corn. There was no damage from rust or cotton caterpillars. There was a good stand. Plot 12 afforded the largest profit, $7.92, or 162 per cent on the investment in fertilizers. The average estimated increase of seed cotton per acre was 100 pounds for cotton seed 97 pounds for acid phosphate; and 51 pounds for kainit. Nitrate of soda was more effective than cotton seed meal. Kainit was but slightly needed or relatively small amounts, 100 pounds answering practically as well as 200 pounds per acre. meal; in Increase of seed cotton per acre when cotton seed meal was To unfertilized plot.................................8 To acid phosphate plot...............................80 To kainit plot......................................128 To acid phosphate and kainit plot......................198 added: lbs. lbs. lbs. lbs. Average increase with cotton seed meal................100 Increase of seed cotton per acre when acid phosphate was To unfertilized plot..................................80 To cotton seed meal plot....... ..................... To kainit plot......... ................ .............. To cotton seed meal and kainit plot................... Average increase with acid lbs. added: lbs. 168 lbs. 38 lbs. 108 lbs. lbs 8 lbs. 144 lbs. 34 lbs. 51 lbs. phosphate..........99 Increase of seed cotton per acre when kainit was added: To unfertilized plot .................................... To cotton seed meal plot .............................. To acid phosphate plot................................ Average increase with kainit..................... Increase from use of different quantities of To cotton seed meal and acid phosphate plot............. 84 lbs. kainit: 84 lbs. 74 lbs. 198 lbs. 364 lbs. To use of 200 pounds of kainit........................ .................. To use of 100 pounds of kainit Increase from use of cotton seed meal......... ........... Increase from use of nitrate of soda....................... Nitrate better by ..................................... 166 lbs. 273 Experiments 8 Miles South of Brockton and 6 Miles NorthWest of Columbia 8 MI. S. OF BROCKTON I6Mi. I N-W. OF COLUMBIA o o o o KIND N N ' Z Sd 1 2 4 3 5 Lbs. 200 Cotton seed meal 240 Acid phosphate__ 000 200 Lbs. 552 640 560 592 Lbs. -8-3.26 80 8 .88 .44 Lbs. 840 768 616 704 Lbs. 224 $ 4.17 152 3.18 92 1.36 No fertilizer Kainit------ 200 6 7 8 240 200 Cotton seed meal 200 Kainit_ ____ 240 Acid phosphate200 Kainit__________ 200 Cotton seed meal 240 200 Cottonphosphate seed meal Acid -1.14 .05 768 160 840 232 2.74 768 656 136 46 800 600 752 196 ____ 1.87 ______ 00 ) No fertilizerKainit 696 888 886 -1.61 1.7 2.11 134 1.21 9 1( 11 Acid phosphate__ 244 872 632 904 984 268 330 2.5 5.18 200 Cotton seed meal __ 10 240 Acid 100 Kainit---------000 No fertilizer--( 240 Acid phosphate 100 Kainit_________ 100 Ntrteo soda _ phosphate 234 -672 400 7.92 976 304 4.85 121 1032 HENRY COUNTY, 6 MILES NORTHWEST OF COLUMBIA. F. B. DOUGLAS. Red land with red clay subsoil. This field has been in cultivation for 10 years. The preceding crop was cotton. There was no rust or damage from worms. About 100 pounds of seed cotton was lost, due to late picking. The stand was very uniform. Plot 10 fertilized with a mixture of cotton seed meal, acid phosphate, and kainit, gave the largest profit, $5.18 per acre, or 96 per cent on the investment in fertilizers. Cotton seed meal was the most profitable of the fertilizers when applied singly, affording a profit of $4.17 per acre or 159 per cent on the investment in fertilizers.- 274 The average estimated increase of seed cotton per acre was 136 pounds for cotton' seed meal; 69 pounds for acid phosphate; and 21 pounds for kainit. On this red land kainit was not profitable in 1911. Nitrate of soda was nearly as effective as cotton seed meal. Increase of seed cotton when cotton seed meal was added: To unfertilized plot ................................ To acid phosphate plot ............ ............ To kainit plot......................................104 To acid phosphate and kainit plot .................... 224 lbs. 80 lbs. lbs. 134 lbs. Average increase with cotton seed meal................136 lbs. Increase of seed cotton per acre when acid phosphate was added: lbs. To unfertilized plot..................................152 8 lbs. To cotton seed meal plot ............................. lbs. To kainit plot.......................................42 72 lbs. To cotton seed meal and kainit 'plot .................... Average increase with acid phosphate................ .. Increase of seed cotton per acre when kainit was added: .............. To unfertilized plot ................... To cotton seed meal plot .............................To acid phosphate plot ................................To cotton seed meal and acid phosphate plot............ Average increase with kainit ........................... increase from use of different quantities of kainit: To use of 200 pounds kainit ........................... To use of 100 pounds kainit ........................... Increase from use of cotton seed meal ................... Increase from use of nitrate of soda ..................... Cotton seed meal better by ............................... 69 lbs. 92 28 18 36 lbs. lbs. lbs. lbs. 21 lbs. 36 lbs. 98 lbs. 134 lbs. 108 lbs. 26 lbs. 275 MACON COUNTY, 5 MILES WEST OF NOTASULGA. B. H. MAY. Gray, sandy, "piney-woods" land. This land has been cleared for 35 years. The preceding crop was corn. Plot 5 was most damaged by rust. Every fertilizer and every combination gave a large increase in yield and in profit. The greatest profit was on Plot 12, where a fertilizer containing nitrate of soda afforded a profit of $18.42 per acre, or 379 per cent on the investment in fertilizers. The average increase attributable to cotton seed meal was 267 pounds of seecd cotton per acre; to acid phosphate 144 pounds of seed cotton per acre ; and to kainit 176 pounds. Nitrate of soda gave a larger yield than did cotton seed meal. One hundred pounds per acre of kainit was fully as effective as 200 pounds per acre. complete Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot..................................508 lbs. To acid prosphate plot...............................146 lbs. To kainit plot....................................... 242 lbs. To acid phosphate and kainit plot..................... 170 lbs. Average increase with cotton seed mneal.................. 267 lbs. Increase of seed cotton per acre when cotton seed meal was added To To unfertilized kainit plot.................................. 444 lbs. To cotton seed meal plot ............................... 82 lbs. 61 lbs.. -plot......................................... To cotton seed meal and kainit plot.......................11 Average increase with acid phosphate.................. Increase of seed cotton per acre when kainit was lbs. 144 lbs.- added: 453 lbs. To unfertilized plot.................................. To cotton seed meal plot.............................. 87 lbs. 70 lbs. acid phosphate plot................................ To cotton seed meal and acid phosphate plot............ 94 lbs. To Average increase with kainit .......................... 176 lbs. 276 Increase from use of different quantities of kainit To use of 200 pounds kainit ........................... To use of 100 pounds kainit...........................112 .. ......... Increase from use of cotton seed meal ......... ........ Increase from use of nitrate of soda............. Nitrate better by 170 94 lbs. lbs. lbs. 196 lbs. 26 lbs. .................................... N OTASULGA FT. tia~lg Experiments at Notasulga and Ft. Davis DAVIS " ermnf t oE 040 7 OCa So a, EIND K N . 1 2 3 Lbs. 230 Cotton seed meal 240 Acid phosphate00) No fertilizer Lbs. 63 2 568 124- Lbs. 508 $13.26 444 12.53 Lbs. 720 784 Lbs. -24 40 -3.77 4 5 20) 200 240 Aci pbosbat Kainit_-- 581 728 453 590 13.10 17.84 744 816 920 -.40 1.35 1.85 Cotton seed meal Acid 6 8 7 9 pbosphate 14:20 13.37 15.81 86 204 2u0 Cotton seed meal S 200 Kainit-___-_ 000 24 No fertilizer----- 840 152 695 - 984 688 282 _ _ --6.84 9.92 10.56 _ - 4.62 200 IAinitspae. Cotton seed meal Acid 672 848 514 684 968 1128 310 500 10 200 40 240 200 ---- Cotton seed meal Acid pbosphate-Kainit Kainit-176---568-- phosphate- 872 17 904 702 17.08 _ 1096, 56 880 498 -312 11 12 100 - _ 000 No frize 240 Acid pbospbate._ 100 100 -_ _ _ 728 Kainit Nitrate of -----soda- 18.42 5.10 MACON COUNTY, /2 MILE SOUTHWEST DAVIS. F. M. DAVIS. OF FT.. White sandy "second bottom" soil with yellow clay subsoil. This land was cleared 50 or 60 years ago. Corn was the preceding crop. The 'stand of cotton was uniform. Rust was worse on Plots 1, 3, 7, and 11, and least abundant on Plots 12, 6, 9, 10, weather in August and by cotton caterpillars in September. and .8 in order named. This cotton was injured by hot 277 The complete fertilizers, containing cotton seed meal, were most profitable, affording increased yields of 500 pounds and 498 pounds respectively, per acre; this was a profit of $9.92 and $10.56 per acre, or 163 and 181 per cent on the investment in fertilizers. The average increase from cotton seed acid phosmeal was 133 pounds seed cotton per pounds of seed cotton; and from kainit 240 phate pounds of seed cotton per acre. One hundred pounds of kainit was as effective as 200 pounds. Nitrate of soda applied June 27th, afforded a smaller yield than did an application of cotton seed meal. 178 acre; from Increase of seed cotton when cotton seed meal was .............................To unfertilized plot To acid phosphate plot ........................... ...................... To kainit plot............ To acid phosphate and kainit plot...................190 Average increase with cotton seed meal................133 added: 24 lbs. 164 lbs. 196 lbs. lbs. lbs. Increase of seed cotton per acre when acid phosphate was added: 40 lbs. .............................. To unfertilized plot 228 lbs. To cotton seed meal plot .......................... 224 lbs. .................................. To kainit plot To cotton seed meal and kainit plot..................218 lbs. Average increase with acid phosphate..........178 lbs. Increase of seed cotton per acre when kainit was To To To To .. ................ unfertilized plot.............. cotton seed meal plot......... .... .............. acid phosphate plot ............................. cotton seed meal and acid phosphate plot....... ..... added: 86 306 270 296 lbs. lbs. lbs. lbs. Average increase with kannt .......................... Increase from use of different quantities of To use of 200 pounds kainit .......................... To use of 100 pounds kainit .......................... Increase from use of cotton seed meal.................... kainit: ......... 240 lbs. 296 lbs. 294 lbs. 190 lbs. Increase from use of nitrate of soda.... Cotton seed meal better by ............................... 186 lbs 4 lbs. 278 MONROE COUNTY, 2 MILES WEST OF MONROE. MONROE FARM LAND Co. Sandy, gravelly loam, yellow clay subsoil. This land has been cleared for 30 years. The preceding crops were oats and millet. There was no damage from shedding or from rust, but some injury from the cotton caterpillar. The stand was good. All applications of fertilizers were profitable. Plot 10 afforded the greatest profit, $9.79 per acre, or 180 per cent on the investment in fertilizers. The average estimated increase of seed cotton per acre for cotton seed meal was 182 pounds; 184 pounds for kainit, and 59 pounds for acid phosphate. Experiment in Monroe County KIND o _ _ _ _ _ _ "_ "_ + 1 2 3 4 5 6 Lbs. 200 240 000 200 200 240 200 S 200 000 240 200 400 240 200 200 240 L 100 000 ( 240 100 Cotton seed meal Acid phosphate No fertilizer --Kainit_ Cotton seed meal Acid phosphate Cotton seed meal Kainit . No fertilizer --Acid phosphate Kainit Cotton seed meal Acid phosphate Kainit J Cotton seed meal Acid phosphate__ Kainit .. . .. .J No fertilizer .... Acid phosphate - Lbs. 536 456 384 512 544 544 704 304 520 52__ 736 784 312 608 Lbs. 152 72 148 200 200 380 ... 214 428 474 $ 1.86 .72 4.34 1.72 1.72 7.76 3.77 7.62 9.79 7 8 9 10 11 12 - KainitlNtt..od - - 296 4.59 100 Nitrate of soda J 279 Increase of seed when cotton seed meal was added: To unfertilized plot .......................... To acid phosphate plot ............ ............ To kainit plot .... .......... .................. To acid phosphate and kainit plot ................... Average increase with cotton seed meal ................. 152 128 232 214 lbs. lbs. lbs. lbs. 182 lbs. Inc:ease of seed cotton per acre when acid phosphate was added: To unfertilized plot .............................. 72 lbs. To cotton seed meal plot...........................48 lbs. To kainit plot .................. ............... 66 lbs. To cotton seed meal and kainit plot .................. 48 lbs. Average increase with acid phosphate ................... Increase of seed cotton per acre when kainit was added: To unfertilized plot ....................... ............... To cotton seed meal plot ................................ To acid phosphate plot ................................. To cotton seed meal and acid phosphate plot .............. Average increase with kainit ............................ 59 lbs. 148 228 132 228 lbs lbs. lbs. lbs. 184 lbs. Increase from use of different quantities of kainit: To use of 200 pounds kainit .............................. 228 lbs. To use of 100 pounds kainit .............. ............... 274 lbs. Increase from use of cotton seed meal .... ................. Increase from use of nitrate of soda .......... .............. Cotton seed meal better by 214 Ibs. 36 lbs. .178 lbs. ............................... 280 CLARKE COUNTY, 10 MILES NORTHWEST THOMAS VILLE. T. M. PUGH. Sandy pine upland with clay subsoil. OF The stand was good and uniform. No report was made of insect injury or severe damage by rust or other disease. All complete fertilizers were profitable, but the greatest profit was $4.69 per acre (Plot 6), or 101 per cent on the investment in fertilizer. The average increase of seed cotton due to cotton seed meal was 199 pounds per acre; to acid phosphate, only 17 pounds; to kainit, only 49 pounds. Cotton seed meal was superior to'nitrate of soda to the extent of 43 pounds of seed cotton per acre. Nitrate of soda, applied June 21st, was slightly-better than cotton seed meal. Increase of seed cotton when cotton seed meal was added: To unfertilized plot..............................232 To acid phosphate plot............................192 To kainit plot .................................. 168 To acid phosphate and kainit plot....................206 Average increase with cotton seed meal...............200 Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot...............................72 To cotton seed meal plot..........................32 lbs. lbs. lbs. lbs. lbs. lbs. lbs. To kainit plot.....................................-38 To cotton seed meal and kainit plot .................... Average increase with acid phosphate.................. lbs. 00 lbs. 17 lbs. Increase of seed cotton per acre when kainit was To cotton seed meal plot............................ To unfertilized plot ................................ added: 116 lbs. 52 lbs. To acid phosphate plot ............................. To cotton seed mreal and acid phosphate plot............ Average increase with krainit ........................ Increase from use of different quantities of To use of 200 pounds kainit ......................... To use of 100 pounds kainit ........................ Increase from use of cotton seed meal...... Increase from use of nitrate of soda........ 6 lbs. 20 lbs. 49 kainit: ........... lbs. 20 lbs. 18 lbs.. ........ 260 206 lbs. lbs.. Nitrate better by.................................... 54 lbs. 281 Experiments in Clarke and Choctaw Counties BAsHI ". O OO PJSHMATAHA O o " 0o -C0a z , 4--J KIND 0 d C N 9 O N _r _N E 1 2 3 4 5 :. Lbs. 200 240 000 200 200 Cotton seed meal Acid phosphate---No fertilizer Kainit_______-_ Cotton seed meal Lbs. 616 456 384 544 736 800 632 Lbs. 232 72 116 264 284 '78 $ 4.42 .62 Lbs. 528 520 Lbs. 112 104 $ 0.58 1.70 2.31 3.77 4.69 .8 3.01 3.64 41638 536 102 856 404 696 68 872 952 6 40 1.86 8.28 2.83 21 3.78 5.82 240 IAcid phosphate_ 200 Cotton seed meal 226 12 308 350 7 I 1 000 No fertilizer ____ 240 IAcid phosphate__t 560 -48862 9 11 1 12 1.20Kainit____ 200 Cotton seed meal 240 Acid phosphate- _ 200 Kainit---------200 Cotton seed meal 240 Acid phosphate- 100 Kainit______-_000 No fertilizer ____ 832 824 536 284 282 240 Acid phosphate- 100 Nitrate of soda 100 Kainit __---____ _ J 872 336 5.87 864 224 2.83 CHOCTAW COUNTY, 20 MILES SOUTH OF CUBA. D. 0., PHILLIPS, PUSHIMATAHA. Dark gray sand with yellow clay subsoil. This field has been cleared about 50 years. The preceding crop was corn. A mixture of cotton seed meal and acid phosphate (Plot 5) afforded the largest increase (404 pounds of seed cotton). This also gave the largest net profit, $8.28, or 177 per cent on the investment in fertilizers. izer 100 pounds of kainit per acre was more profitable than 200 pounds. The average increase with cotton seed meal was 171 pounds of seed cotton per acre, against 135 pounds. from acid phosphate, and an average increase of only 45 pounds from the use In a complete fertil- 282 of 200 pounds of kainit. Cotton seed meal was more profitable than nitrate of soda, applied June 13th. 112 300 124 146 lbs. lbs. lbs. lbs. Increase of seed cotton when cotton seed meal was added: To unfertilized plot ................. To acid phosphate plot ............... ............... To kainit plot .................. ............... To acid phosphate and kainit plot ................... Average increase with cotton seed meal ................. 171 lbs. lbs. lbs. lbs. lbs. Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot ........ ...... ............. 104 To cotton seed meal plot ........................... 292 To kainit plot..................................60 To cotton seed meal and kainit plot .................. 82 Average increase with acid phosphate .................. Increase of seed cotton per acre when kainit was added: .............. To unfertilized plot ...................... To cotton seed meal plot .............................. To acid phosphate plot ................................ To cotton seed meal and acid phosphate plot ............Average increase nvith kainit .......... ... . . . . . .. . Increase from use of different quantities of kainit: ......-To use of 200 pounds kainit .............. ...........To use of 100 pounds kainit ............ Increase from use of cotton seed meal Increase from use of nitrate soda .............. 135 lbs. 102 lbs 114 lbs. 58 lbs. 96 lbs. 45 lbs. 96 lbs. 54 lbs. 146 lbs. 20 lbs. 126 lbs. .................... ......... ................ Cotton seed meal better by ................. 283 WASHINGTON COUNTY, 6 MILES NORTHEAST OF CARSON. T. LEE PORTER. Red tpland soil. This land has been cultivated for about 40 years. The preceding crop was corn. The stand on all plots was poor. This cotton was seriously damaged by the boll weevil and the cotton -caterpillar. Portions of Plots 2, 3, 5, 6 and 8 were injured by rust. This soil needed a complete fertilizer, which in all cases afforded a profit, while all applications of chemicals singly or in -pairs were of but slight value. The average increase attributable to cotton seed meal was 90 .pounds of seed cotton; to acid phosphate 94 and to kainit 118 pounds of seed cotton per acre. Nitrate of soda applied on July 7th, was practically equal to cotton seed meal. pounds; Increase To To To To of seed cotton when cotton seed meal was unfertilized plot...................................54 acid phosphate plot...............................-30 kainit plot.......................................36 acid phosphate and kainit plot....................298 added: lbs. lbs. lbs. lbs. lbs. lbs. -34 lbs. Average increase with cotton seed meal.................90 Increase of seed cotton per acre when acid phosphate was To unfertilized plot..................................50 To cotton seed meal plot............................. added: 49 lbs. 311 lbs. To kainit plot ........................................ To cotton seed meal and kainit plot............. ...... Average increase with acid phosphate.................... 94 lbs. Increase of seed cotton per acre when kainit was To unfertilized plot................................... added: 41 lbs. To cotton seed meal plot......................... ..... 23 lbs. To acid phosphate plot................................ 40 lbs. To cotton seed meal and acid phosphate plot............. 368 lbs. Average increase with kainit ........................... 118 lbs. Increase from use of different quantities of To use of 200 pounds of kainit ........................ kainit: 368 lbs. To use of 100 pounds of kainit ......................... Increase from use of cotton seed meal......... ............ ......... Increase from use of nitrate of soda ............. Cotton seed meal better by............................... 314 lbs. 298 lbs. 296 lbs. 2 lbs. 284 Experiments at Carson and Bellevitte CARSON BELLEVILLE 4-j 1 I I wV pZ 1 2 3 4 ti Lbs. 200 240 000 200 200 240 200 4-P O.) Cu O~c S1 KIND d;-4 O 0ON I Lbs. 560 556 506 582 596 68 6 9 Cotton seed meal Acid phosphate_--_ No fertilizer---____ Kainit_..-_ Cotton seed meal Acid phosphate200 Cotton seed meal Kainit Lbs. 54 -1 50 41 20 -4 77 __- _ 27 08 09 64 Lbs. 556 544 456 576 632 704 Lbs. 200 88 92 120 164 _-_ - $ 3.40 1.14 1.54 84 .85' -. 7 000 No fertilizer240 ------ 68 646 -1.904 -2 -2 6.34 5.31 200 Kainit--_-_90 200 Cotton seed meal 240 Acid 240, Acid Acid phosphate - -__ 716 920 566 568 90 80 80 840 -__ 23 23 272 ___ -4.34 2.62 ( 10 11 200 Cotton seed meal 100 Kainit_-_-__ phosphatephosphate - 994 388 334 _ 12 000 No fertilizer--.- - _ - - -7.41 100 Kainit 100 Nitrate of soda--S 88 332 5.74 952 384 CONECUH COUNTY, BELLVILLE, 8 MILES EAST OF REPTON. B. D. ARANT. Light gray sandy land, yellow clay subsoil. This land has been in cultivation for 40 or 50 years. Thepreceding crop was cotton. Some damage was done by cotton wilt on Plot the caterpillar attacked the crop too late to do much damage. The first part of the season was too dry and the latter part too wet. The largest profit, $7.41, was afforded by Plot 12 which. received a complete fertilizer, including nitrate of soda. The average increase in seed cotton was 86 pounds 10; cotton seed meal; 47 pounds with acid phosphate; with and 8& pounds with kainit. 285 Increase To To To To of seed cotton when cotton seed meal was unfertilized plot..............................200 acid phosphate plot ............................ kainit plot..................................72 acid phosphate and kainit plot....................40 added: lbs. 32 lbs. lbs. lbs. Average increase with cotton seed meal.86 Increase of seed cotton per acre when acid phosphate was To unfertilized plot..............................88 To cotton seed meal plot.........................-80 .................................. To kainit plot To cotton seed meal and kainit plot..................40 added: lbs. lbs. lbs. 140 lbs. lbs. Average increase with acid phosphate...............47 lbs. Increase of seed cotton per acre when kainit was added: To To To To lbs. unfertilized plot..............................92 .........................- 36 lbs. cotton seed meal plot 144 lbs. ....................... acid phosphate plot.... cotton seed meal and acid phosphate plot...........152 lbs. Average increase with kaint ....................... MIMS. 88 lbs. MOBILE COUNTY, 6 MILES EAST OF CHUNCHULLA W. A. Yellow clay loam, red clay subsoil. The preceding crop was corn. Slight damage was done by rust. There was 90 per cent of a perfect stand. On this land, capable of making about three-fourths of a bale of cotton per acre without fertilizer, every fertilizer and every combination afforded a profitable increase. The largest cent on the investment in profit, $12.02 per acre, or 246 fertilizers, per was made on Plot 12, which received a complete fertilizer containing nitrate of soda. average increase attributable to cotton seed meal was 116 pounds of seed cotton per acre ; to acid phosphate 109 pounds ; and to kainit 170 pounds. Nitrate of soda was more ,effective than cotton seed meal. The 286 Experiments at Chunchulla in Mobile County ; a 0 KIND 5)oN-0 " U) 04. o 1 2 3 Lbs. 200 240 000 200 5 200 { I 4 6 7 9 10 240 8 200 200 000 240 200 I Cotton seed meal Acid phosphate _ _ No fertilizer-Kainit____________ Cotton seed meal Acid phosphate-Cotton seed meal Kainit__________ No fertilizer------Acid phosphateKainit_____ ____f Lbs. 1128 1024 920 1280 1376 1264 1040 1416 1488 1560 Lbs. 208 104 $ 3_66 1-65 330 396 9 16 799 344 384 424 7.93. 6_21 200 240 200 Cotton seed meal Acid phosphate Kainit__________J 200 240 100 Cotton seed meal 1 Acid phosphateKainit No fertilizer Acid phosphate-Kainit_____ Nitrate of soda 11 000 ---- -J --- - 819 1168____ 12 240 100 100 -528 12_02 J 1696 Increase of seed cotton per acre when cotton seed meal was added: lbs. To unfertilized plot.................................208 292 lbs. To acid phosphate pint .......................... To kainit plot ........... ................... 76 lbs,. To acid phosphate and kainit plot ...................... 40 lbs. Average increase with cotton seed meal ................ 116 lbs. Increase of seed cotton per acre when acid phosphate was added : 104 lbs. To unfertilized plot .................................. 188 To cotton seed meal pilot .............................. 14 lbs. To kainit plot ........................................ 130 lbs. To cotton. seed meal and kainit plot................... lbs. Average increase with acid phosphate................. 109 lbs. Increase of seed cotton per acre when kainit was added : 330 To unfertilized plot.................................. 46 To cotton seed meal plot............................. 240 To acid phosphate plot ................................ To cotton seed meal and acid phosphate plot............-12 lbs.. lbs.. lbs. lbs. Average increase with kainit......................... 170 lbs. 287 Increase from use of different quantities of kainit: To use of 200 pounds of kainit............... ............- 12 To use of 100 pounds of kainit ..... .... .. ......... -28 From use of cotton seed meal.............. ............ 40 From use of nitrate of soda .......................... 144 Nitrate better by .............. ...... ............ 104 lbs. lbs. lbs. lbs. lbs INCONCLUSIVE EXPERIMENTS All the experiments recorded in the remaining pages of this bulletin were inconclusive, and hence are very briefly presented. J. M. Alexander, at Felix, PERRY COUNTY, made a fertilizer experiment on light sandy soil with yellow clay subsoil. This proved inconclusive probably because of having only two rows per plot. page 288. In DALLAS However, the yields are published on M. F. Smith, at Marion No COUNTY, ?unction, made a fertilizer experiment on prairie land. report of yields of the separate plots was received. In HENRY COUNTY, R. L. Williams, 3 miles northwest of Columbia, conducted a fertilizer experiment with cotton. However, his results cannot be compared with others because he did not follow instructions but applied all fertilizers at 22 times the rate intended. The yields are shown on page 288. RUSSELL COUNTY, 6 MILES EAST OF SEALE. J. B. BILLUPs. Gray sandy loam with light yellow subsoil. This land has been continuously in cotton for the past 28 years. Cotton wilt so reduced the stand cn Plots 2, 9, and 10 as to make the experiment inconclusive. See page 290. MONROE COUNTY, 12 MILES WEST OF REPTON. A. L. HARRISON. Red pine land. This experiment was inconclusive by reason of greater fertility of that part of the field adjacent to P!ot 11. See p 290. However, at least this conclusion may be safely drawn, n:amely, that acid phosphate was highly profitable on this land. 288 Inconclusive Jerti/zer experiments at Felix, Columbia and Letohatchie FELIX COLUMBIA O O O0 O LETOHATCHIE oo O ID " K.J a, cIND d d t -, 1 2 3 5 6( 7 7 Lbs. 200 240 00 0 4 200 200 240 200 200 000 240 Cotton seed meal Acid phosphate---No f ertiliz e r - -- -.-. Kainit______ Lbs. 880 624 664 392 608 912 376 480 704 84 Lbs. Lbs. 216 700 -40 660 Lbs. 100 60 Lbs. 752 624 Lbs. 168 40 _6 --204 88 464 00 0 800 860 5 250 335 - 5 84 7 960 1056 3 268 310 -200 200 Cotton seed meal Acid phosphate-Cotton seed meal_ Kainit_ No fertilizerAcid phosphate __ Kainit-4 200 Cotton seed' meal Acid phosphate 200 Kainit_________ _ 500 800 288 080 570 905 1232 952 624 440 Cotton seed meal 10 1 11 12 240 100 000 240 100 100 Acid phosphate __ Kainit__________ No fertilizer Acid phosphateKainit Nitrate of soda 348 1420 - 4 6952 520 496 1060 540 416 504 88 CLARKE COUNTY, 8 MILES WEST OF WHATLEY. J. W. CALHOUN. Gray sandy upland with clay subsoil. This field had been cleared 5 years. The original forest trees were oak and long leaf pine. The preceding crop was cotton. All plots were damaged by a severe windstorm in August. The results are inconclusive, partly because of variations in the fertility of different plots, and possibly because of unequal damage to the different plots by the storms. See page 290. In PIKE COUNTY, near Brundidge, J. N. Colley conducted an experiment which was damaged so much "by wilt and 'rust that no conclusion can be drawn. Hence the fig- ures are not published. 289 LOWNDES COUNTY, ~4 MILE SOUTH OF LETOHATCHIE. J. B. MITCHELL, JR. Black prairie upland with reddish subsoil. The best yields were obtained from complete fertilizer, giving a profit of $13.99 per acre, or 230 per cent on the investment in fertilizer. See page 288. The land was so variable in fertility (see yields of Plots 3, 7 and 11) that no positive conclusions can be drawn. However, the indications are that kainit and cotton seed meal, each alone and in combination, was profitable, and that probably acid phosphate was helpful when used in a complete fertilizer. In BARBOUR COUNTY, J. A. Richards, at Louisville, conducted a fertilizer experiment but the crop was ruined by wilt and by a hail storm on the 30th of June. CRENSHAW COUNTY, 1 MILE EAST OF LUVERNE. F. L. HAWKINS. Gray sandy upland ; red clay subsoil. This cotton was grown on land that had been cleared for about 55 years. There was no damage from plant disease or from insects. This experiment was inconclusive because the land was not uniform in fertility. See page 290. BULLOCK COUNTY, 1 MILE EAST OF INVERNESS R. F. HooKs conducted an experiment on gray soil with yellow subsoil, which proved inconclusive because of a defective stand on certain plots. See page 290. In BULLOCK COUNTY, 2'/2 miles south of Union Springs, E. H. Cope conducted an experiment. However, the results are inconclusive because the different plots were not uniform in fertility. See page 290. Inconclusive fertilizer experiments at Luverne, Inverness, Union Springs, Seale, Repton and Whatley LUVERNE INVERNESS UNION SPIN o 0 C14 SEALE REPTON I WHATLEY 2 Q o 2 0 O o 2 0 0 w 2 0 0. O N 0 5 KIND 1 2 3 Lbs. 200 Cotton seed meal 240 Acid phosphate_-__ 000 No fertilizer--__ 200 Ka init____ Lbs. 824 712 432 592 Lbs. 392 280 52 Lbs. _______ Lbs. __-__ Lbs. 968 880 736 728 4 656 784 200 Cotton seed meal 5 240 Acid phosphate__S 6 90 90 864 840 952 25 25 172 2 82 744 28 186 28 262 1441 --10 Lbs. 232 Lbs. 754 460 364 4 36 Lbs. 390 96 67 Lbs. 920 1040 840 1000 Lbs. 80 200 -- Lbs. 864 888 760 840 Lbs. 104 128 _ 180 -42 91 91 816 21 21 134 47 47 584 98 98 205 1 20 20 960 40 40 180 92 92 1120 16 246 7 8 9 10 11 L r200 L 240 100 000 r 200 240 240 100 meal 000 No fertilizer 20Ai hsht 200 Kainit t 200 20Kainit S Cotton see-d- 928 5-Cotton seed mealL Cotton seed meal 848 Acid _-_ Kaini-u. No fertilizer--------816 Acid phosphate 12 112 20 _- 424 760 760 608 360 352 368 232 664_ 616 736 816 784 168 -48 32 384 536 696 768 392 150 308 378 760 1120 1200 1160 1040 290 300 190 __ 912 1008 992 1024 856 110 108 154 Acid phosphate 200 Kainit--____. phosphate- -) -512 -_ 312 ---184 12 100 Kainit --- _ Nitrate of soda- -_ 1048 233 872 904 120 704 1160 120 1040 291 GENEVA COUNTY, 2 MILES NORTH OF SLOCOMB. J. G. LEWIS. Gray, "piney-woods" sandy loam, with yellow clay subsoil. This land has been cleared for 7 years. The preceding crop was corn. The stand was good, except plot 7. There was no damage reported from rust or insect attacks. By error the plots were made smaller and the rate of fertilization higher than directed. Hence the results from this experiment cannot well be compared with those from other experiments. All of the fertilizers were profitable. The largest increase in yield was made on plot 10, which showed a profit of $13.03 per acre. or 161 per cent on the investment in fertilizers. The highest yield from the fertilizer applied singly was acid phosphate $7.12 per acre, or 263 per cent on the investment in fertilizers. The average estimated increase of seed cotton per acre, due to the use of cotton seed meal was 206 pounds; to acid phosphate 150 pounds; and to kainit 22 pounds. Nitrate of soda was applied June 6th. Experiment at Slocomb in Geneva County. ow 0 o O " KIND N 1 Lbs. 325 Cotton seed meal Lbs. 1179 Lbs. 307 $ 4 96 2 3 385 000 Acid phosphate No fertilizer 1149 872 307 __8 7 12 3 48 761 761 3 93 251 251 3-47 13_03 4 5 5 6 6 7 8 81 9 10 11 325 325 385 Kainit Cotton seed meal Acid phosphate-} Cotton seed meal Kainit -. No fertilizer ---. Acid phosphate Kainit Cotton seed meal Acid phosphate- Kainit Cotton seed meal Acid phosphate__ Kainit - ... No fertilizer --. 1051 1346 1346 1218 2836 872 1103 1103 1282 1538 859 179 474 474 346 234 234 416 676 S325 325 325 000 385 325 325 385 325 385 163 000 12 385 163 163 Acid phosphate__ Kainit ___. Nitrate of soda_ 1513 654 13 01 292 Itncrease To To To To of seed cotton'per acre when cotton seed meal was unfertilized plot.............................307 acid phosphate plot ........................... 167 kainit plot .................................. 167 acid phosphate and kainit plot....................182 added: lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. Average increase with cotton seed meal................206 Increase of seed cotton per acre when acid phosphate was To To To To unfertilized plot..............................307 cotton seed meal plot...........................167 55 .................................. kainit plot cotton seed meal and kainit plot...................70 added: Average increase with acid phosphate..................150 lbs. Increase of seed cotton per acre when kainit was 179 unfertilized plot .................. cotton seed meal plot...........................39 73 acid phosphate plot ............................ cotton seed meal and acid phosphate plot............58 22 Average increase with kainit .......................... To To To To added: lbs. lbs. lbs. lbs. lbs. Increase from use of different quantities of kainit: lbs. To use of 200 pounds of kainit.......................58 To use of 100 pounds of kainit......................202 lbs. lbs. Increase from use of cotton seed meal..................182 lbs. Increase from use of nitrate of soda....................160 Cotton seed meal better by...............................22 lbs DALE COUNTY, 1 MILE SOUTH OF PINCKARD. T. WI. BARRINEAU. Light clay loam with red clay subsoil. This land has been in ,ceding crop was corn. There was no damage from rust or insects. The plots of this experiment were not full size being only .115 of an' acre each, instead of 18 acre as was intended, thus making the rate of fertilization higher than it should have been on the ordinary plots. 'Phe experiment is inconclusive because of wilt on plots 9 and 10 and because plots 1 and 12 were apparently more fertile than the others. -cultivation for 40 years. The pre- 293 Inconclusive experiment at Pinckard , KINDvN "CC z a 1 2 3 4 5 7 8 Lbs. 217 260 000 217 217 260 217 217 000 260 217 217 - Lbs. 1018 Cotton seed meal-600-70 Acid Phosphate670 No fertilizer 626-18 -Kainit --Cotton seed meal 1043 Acid Phosphate__ Cotton seed meal 765 - S Kainit 564 No fertilizer---Acid Phosphate- Z 1096 S-----Kainit Cotton seed meal Acid Phosphate Lbs. 348 426 174 532 9 260 10 11 { L C 217 217 260 108 000 Kainit_________J Cotton seed meal Acid Phosphate Kainit- - 1200 636 J 1043 565 1443 478 No fertilizer-______ 12 260 108 108 Acid Phosphate-Kainit ______ Nitrate of soda-_9 b78 HENRY COUNTY, 1 1-4 MILES NORTHWEST OF HEADLAND. J. T. KNOWLES. Dark clay loam with red clay subsoil. This land has been cleared for ten years. The yields were so irregular that no conclusion could be drawn. This was probably due to having the plots too narrow ; moreover, the plots were too small, being only .093 of an acre, making the fer- tilization heavier than was intended. The figures are not 1published. 294 ESCAMBIA COUNTY, 1 1-2 MILES NORTH OF ATMORE. J. W. JONES. Gray sandy loam, yellow clay subsoil. This land has been cultivated for about 5 years. Irregularity in the stand on the different plots and injury by caterpillars rendered this experiment inconclusive. (For yields, etc., see page 296.) ESCAMBIA COUNTY, 2 MILES NORTH OF BREWTON. G. W. BROWN. Gray sandy upland with yellow clay subsoil. This land has been cultivated for about 5 years. The preceding crop was corn. There was no damage from rust. A heavy rain and wind about July 20th did considerable damage. This cotton was seriously damaged in August by the caterpillar. There was a uniform stand. See page 296. Nitrate of soda was applied June 27th. CRENSHAW COUNTY, 1-2 MILE NORTH OF BRANTLEY. J. W. ELLIS. Gray sandy loam, yellow clay subsoil. This land, already rich, has been cultivated for 22 years. The preceding crop was corn. The results are inconclusive. See page 296. HENRY COUNTY, 5 MILES WEST OF HEADLAND. R. W. WARD. Gray loam with red clay subsoil. This land has been in cultivation for 17 years. The preceding crop was cotton. This experiment was inconclusive 295 because of failure to make the last picking and because the plots were too narrow. The chief need of this soil was phosphate, which gave a profit when used alone of $3.70 per acre or 280 per cent on the investment in fertilizer. See page 296. COVINGTON COUNTY, 2 MILES EAST OF ANDALUSIA. W. E. BAGLEY. Sandy loam with stiff clay subsoil. This land has been cleared for about 35 years. The preceding crop was sorghum. The results are inconclusive except in showing that cotton seed meal was uniformly effective. :See page 296. COVINGTON COUNTY, 1-2 MILE SOUTH OF OPP. W. A. MALOY. This experiment was inconclusive by the failure of the experimenter to carry out the written plan, which called for three unfertilized plots, so as to determine whether the different parts of the field were uniform in fertility. The figures are not published. In GREENE COUNTY. 15 miles South of Eutaw, W. W. Morgan made a fertilizer experiment with cotton. The results were inconclusive, and are not published. Inconclusive fertilizer experiments at A tmore, Brewton, Brantley, Headland, Andalusia Atmore So _p Brewton o _ Brantley o o f Headland Andalusia z pickiug only o Na) Q ) II N- G NCa) ) C o NC n Q) Id~ Lbs . Lbs. Lbs. !ILbs. Ls b.Ls b.Ls b.Ls 1n 200; 240 Cotton Acid seed meal--_ 1060 728 504 168 720 696 8 )64110 2 phosphate__ fertilizer------____ 3 4 000 200 No Kainit 560 648 96 6 816 94112 1128 _ _ 00 204 24 -6 60 12 1 6 7 8 200 240 200 200 000 240 Cotton seed meal Acid phosphate44 Cotton seed meal Kainit__________ No fertilizer Acid 648 648 528 712 504 112 190 656 696 592 696 881608 94 1384 1064 1176 4 304 _ 92 2 296 240 368 5 56 _ 132 2 760 608 552 -38 194 9 10 11 200 Kainit__ _ ___ 200 Cotton seed meal 240 Acid phosphate__ 200 Kainit phosphate-- 92 18 18 - _ )--70 70 752 236 19 19 864 81 81 640 248 1192 110 110 1144 88 3 3 __ 448 46 46 224 216 26 26 752 72 72 536 180 28 28 S200 Cotton seed meal 240 Acid phosphate__ 100 Kainit__ ___S 000 No fertilizer____ Acid 504 12~ 240 100 Kainit ____-_ 100 Nitrate of soda phosphate752 248 840 200 1288 144 432 208 736 ---200