BULLETIN

No.

170

FEBRUARY, 1913

ALABAMA
Agricultral Experimen tto

OF THE

Aabama aolytechnic Institute
AUBURN

Local Fertilizer ExperimentsWith Cotton in

North Al aaa in 1912.
J. F. DUGGAR,
J. T.

WILLIAMSON

and

L.

J. H AW LE Y.

a

Post Publishing Company
1913

COMMITTEE OF TRUSTEES ON EXPERIMENT STATION.
HON.

®ON. F. KoLB--------------------------------------Montgomery R. ---------------------------- Ozark H. L. MARTIN

HON.

A.

W.

BELL---------------------------------

--------------

Anniston

STATION STAFF. C. C. THACH, President of the College. J. F. DUGGAR, Director of Station

DEPARTMENTAL
AGRICULTURE:

ORGANIZATION. BOTANY:

J.

F. Duggar, Agriculturist. E. F. Cauthen, Associate. M. J. Funchess, Assistant. J. T. Williamson, Field Agent. L. J. Hawley, Field Agent. J. F. Duggar, Jr., Assistant.
'VETERINARY:

J.

S.Caidwell, Botanist. C. S. Ridgway, Assistant.
PLANT PATHOLOGY:

F. A. Wolf, Pathologist.
HIORTICULTURE:

C. A. Cary, Veterinarian. 1. S. McAdory, Assistanlt.
CHEMISTRY:
B. B.

E. P. Sandsten, Horticulturist. J. C. C. Price, Assistant. H. M. Conolly, Agent

Field

{ENTOMOLOGY:

W. E. Hinds, Entomologist.
s

Ross, Chemist, State Chemist
Physiological Chemist

J.T.Anderson,ChemistSoil&Cro

J. A. Dew, Field Agent.
Jesse M.

C.

I. Hare,

T. Bragg,

First Assistant.

S. Adler, Assistant.

Jones,

Animal Husbandmzan..

EXTENSION: L. N. Duncan, Superintendent."
J. B. Hobdy, Assistant. x
I. Bechdel, Mrs. Birdie I.Robinson, Assistant.*
S.

L. XW.Summers, Assistant, sisat L. W Shook,
0.

Assistant.*

*ln cooperation with United States Department of Agriculture.

S. S. Jordan, A. IR. Gissendanner, Assistant. J. M. Johnson, Assistant.

Assistant.*

LOCAL FERTILIZER EXPERIMENTS WITH COTTON IN NORTH ALABAMA IN 1912
BY

J.

F. DUGGAR,

J.

T. WILLIAMSON, L.

J.

HAWLEY.

SUMMARY.
Bulletin No. 170 records the results of fertilizer experiments with cotton conducted by the Alabama Experiment Station in the counties of the northern half of Alabama in 1912. In 14 out of 16 conclusive experiments, cotton seed more effective than either acid phosphate or kainit. In 7 experiments, phosphate was more effective than kainit; in meal was

2 it was about equally as important as kainit, and in 3 tests, it was less effective than kainit, though needed; thus in 75 per cent. of these experiments, acid phosphate was needed to a greater or less extent. In 5 experiments kainit was more important than phosphate, and in 2 instances it was about equally as effective as phosphate; that is, in 44 per cent. of these experiments, kainit was needed to a greater or less extent. This table shows that as a rule the complete fertilizers (Plots 12, 10 and 9) were more profitable than fertilizers applied singly or in pairs. The complete fertilizers were also the most profitable

applications in 1911 in North Alabama. In the general average it was more effective and more profitable in both years to apply 100 pounds of kainit in a complete fertilizer (Plot 10) than to use 200 pounds of kainit (Plot 9). The average of the conclusive experiments shows that 200 pounds of cotton seed meal applied before planting was in 1912 practically equal in effect to 100 pounds of nitrate of soda applied after the plants were six inches high. The average results of the 16 experiments are shown in the table below:

46

o

a c'

KINtO KID OF FERTILIZER

Z
o 1 2 3
4

U a Lbs. 200 240 000 200 200 240 200 000 20
C. S.

Average increase over unfertilized plot; seed cotton per acre. Lbs.
226

Averge

Aeaepoi from fertilizer
pofi

per acre.

Acid Phosphate
No fertilizerKainit----

Meal

141

$6.06
6.68 6.14
2.7

3.98
1.62

-

75

6

C. S. Meal?_ Acid Phosphate _-_ C. S. Meal N o fertilizer-Acid Phosphate _

284 264

7
81

- ----- --- ---- ----146

240

200 240
200

1011

12

200 240 100 000 240
100

Kainit 146 C. S. Meal Acid Phosphate -346 7.75 Kainit ----------C. S. Meal ) Acid Phosphate 353 8.73 Kainit__________ No fertilizer--------------------------------------Acid Phosphate

-----

--

Kainit_

355

9.34

100

Nitrate of Soda(late)

Introductory
The chief object of these local fertilizer experiments or soil tests has been to ascertain the best combinatiorn of fertilizer or fertilizers

for cotton,

growing

on each of the principal soils of the northern

half of Alabama; this is, in counties north of the, Prairie Region. The results recorded in this bulletin were obtained in fertilizer experiments conducted by funds provided by the Legislature of Alabama in February, 1911. 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.

Local fertilizer

experiments

as now conducted are made by farm-

ers 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.

47 "What fertilizer does my soil need" is a question which can be answered only by repeated tests made on the same or similar soils, so that average results extending through several years may be obtained. The reader should bear in mind that there are great numbers of different soils in Alabama, and that even the same soil would give different results in the same year, depending on how it had been cropped, fertilized, and cared for in the year or two immediately preceding the test. Patient repetition of these tests is necessary before we can positively answer the above question. It is the purpose of the authors in later years to publish bulletins classifying the soils on which all these tests are made and drawing conclusions relative to the needs of each class of soils. However, before this can be safely done, these experiments must be repeated, so that the average results may teach clearly the fertilizer requirements of each distinct type of soil. Averaging the results obtained on dissimilar soils will not afford the desired information. Chemical analysis of the soil does not indicate what fertilizers are needed. Otherfertilizertests in North Ala.-This bulletin does not contain the results of all the fertilizer experiments made in North Alabama in 1912. Those testing the effects of lime, acid phosphate versus ground rock phosphate, complete fertilizer experiments in which nitrate of soda was the carrier of nitrogen, etc., are reserved for publication in later years, because of insufficient funds for printing. 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 Station inspected the experiments here published as often as practicable. WEATHER CONDITIONS The season of 1912 was especially unfavorable for conducting fertilizer experiments. This was an exceedingly wet year, especially in spring and summer. The average rainfall in the part of Alabama covered by these

48 experiments is given below by months, according to data furnished by the Alabama 'Weather Service:
Inches Jan.-_______5.78 Feb.-----5.14 Mar. ----9.98 Inches April _ 8.89 May-_,,_, 3.24 June-_____ 5.58 Inches JulyAug.Sept.-

5.52
3.60

Inches
Oct.
Nov.Dec.
_2.81

5.36

1.07
wasting

Doubtless, the heavy rains resulted in the leaching and of the fertilizer on certain soils and plots.

In spite of these and other serious obstacles, the majority of the experiments afforded useful results. In nearly every test one or more fertilizer mixtures were decidedly profitable. If we would
know the fertilizer requirements of our soils, tests must be made in unfavorable as well as favorable seasons.

In 1912 killing frost occurred early, that is on October 24 and November 3. LOCATION OF EXPERIMENTS.
Page COUNTY POST OFFICE NAME Bibb------------- Centerville --------- John D. James-----------69-70 Bibb-------------Randolph ---------- J. E. Perry-------------72-73 Blount ----------- Oneonta-----------W. E. Lecroy-----------72 Blount ---------- -Oneonta-----------W. F. Tidwell 6-67-6 Calhoun ---------- Alexandria --------- E. M. Cowden.----------72-73 Chambers----_ .--- Cusseta-----------W. T. Edge------------72 - Paul Bishop------------65-66 Cherokee---------- Cedar Bluff J. F.Westbrook----------64-65 Cherokee--------Gaylesville____ J.F. Lester-------------72-73 Clay-------------Lineville-----W. E. Hargett-----------_71-74 Colbert------Tuscumbia___

Tuscumbia Coosa ------------ Equality, R. No.
Colbert----------Cuilman----DeKaib----------

----

-----

-----

54-55 Geo. E. Harris70-71 1_W. M. Blankenship ----Johnston---------61-62 Hanceville'-------- A. 72-74 Ft. Payne---------_J. J. Sampley-------------.

_---------

W.

Etowah---_-----Gadsden, R. No. 3__T. A. Lewis-------------_72-74
Franklin---------_Russeilville--------

-Florence Lauderdale Lawrence--------_Courtland-----W. Lawrence---------_Town Limestone--------- Athens-----Madison------_New

Lamar-----------_Sulligent-----__-----Jack Woods-------------_72

F.

Dennis....-------------71

----

----------. ---

Creek

Madison--------._Huntsville---------_G. E. Hoy--------------_71-74 52-53-54 Marion----------- Glen Allen--------- W. P. Letson -----

Hope --------- Charles
J.
R.

51-52 P. E. 56-57 W. 55-56 8th Dist. Agr. School T. Butler--------_71-74 D.

J.

Underwood---Udrod---Hotchkiss---------- 57-58
Terry------------

---

Marshall ---------- Boaz -------------Pickens Pickens

Morgan ---------- Hartselle ----------Morgan ---------- New Decatur ----

Smith--------6-6

Randolph--------- Roanoke ----------St. Clair----_ -

----------------------

M. White--------------_60-61 L. B. Wyatt------------_71 Reform------------L. R. Hollingsworth Aliceville---------E. Sanders--------------_72-74 R. E. Taylor-----------_72-73 lJenkins & Stevenson Asheville

---

72-74

-----------

---

72- 73

49
Shelby ---------- Montevallo --------- H. E. Butler------------68-69 Talladega _ - __Childersb rsburg )'V. Boz--------27 -Talladega ----------- J. R. Weisenger--------72 Tuscaloosa__-__ Tuscaloosa--------I-I. T. Burks------------72
T e___-

Walker Winston

- ----- -

-Cordova----------G.

L.

Alexander

-

59-60

_

Natural Bridge___--R. J. Mobley-----------72

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, and that it should be representative of large soil areas in its vicinity. The need of perfect uniformity and standard treatment 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 FERTILIZERS USED

The following prices are used, as representing approximately the the average cash price in local markets during the last few years: Acid Phosphate (16 per cent available)Cotton seed meal-______---Per Ton $14.00 -$30.00 -

Klainit---____-----------____----

$14.00

Prices naturally vary in different localities. Any one can substitute the cost of fertilizers in his locality for the prices given above. In each experiment three plots were left unfertilized, these being these yields differed widely the plots 3, 7, and 11.

ment was classed

When

experi-

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 forplots 8 to 10 inclusive."
PRICE ASSUMED FOR SEED COTTON

The price assumed is $18.00 per ton for seed, and 12 cents perpound for lint. This is equal to 4.6 cents per pound for seed cotcents perton turning out 3313 per cent of lint. Deducting o% cost of picking and ginning, and we havepound as the average left 4 cents as the net value per pound of the increase of seed cot-. ton due to fertilizers. This latter is the figure used in all financial}
calculations. *For the standard method of calculation employed, see Alabama Stations Bulletins 160 or 162.

50

.Pounds per acre of fertilizers; nitrogen, phosphoric acid,

potash used and composition of each mixture.
FETLIESMIXTURE FETCONTAINS

and

COST OF FERTILIZERS

KIND
OF FERTILIZER n
o 4-1
-'o +a

en

Las.
1 200 Cotton seed meal

2 4

240
200

55
6

200 240

In 100 lbs. c. s. mcatn -ea 6.79 2.88 1.77 Acid phosphate_-38014.00 In 100 lbs. acid p/os.16.00 - Kainit___________ -24.60 In 10.)lbs. IKainit --- _---12.30 Cotton seed meal Acid phosphate - -13.58 In 100 lbs. above mixt._ 3.09 10.04 .80

---13.58

Lbs.

Los.
5.76

Lbs.
3.54

-

1.68 14.00 1.40

----3.39

200 Cotton seed

meal

- }--13.58

5.76 28.14

.

In 100 lbs. above vixt.
-

1.44 7.03
4. 4 .9

Acid C240 phosphate In 100 lbs. above mnixt,
200

-- 135 --- 2

Cotton seed meal - -

--

-

-anit.9003.08

10

240

Acid phosphate--In 100

13.58 2.59
5

100

44.1628154~2.3
8.18 2.93)
4.658

53

10
12

lbs. above

19ainit0

inixt._

240 100

Acid

phosphate---___ )

K<ainit-------100 Nitrate of soda5 In 100 lbs. above rnixt. .

14.00

16.00 12.30

22.17 3.18 8.73 2.80

4.88

*Average of many analysis. tCounting all the phosphoric acid in cotton seed meal as available. Those farmers

who

are more

accustomed to the word amnitro-

monia than to the term nitrogen, can change the figures for ~Agen into their ammonia equivalents by multiplying by 1IN.

51
LAUDERDALE COUNTY, 6 MILES NORTH OF FLORENCE D. P. UNDERWOOD Grey stiff loam, with yellow clay subsoil. Mapped as "Clarksville silt loam or barrens." This land has been in cultivation 18 years. The preceding crop was cotton. No damage was done by insects or rust. The stand was uniform except on Plots 9 and 10 where it was somewhat deficient. The largest profit, $11.90 per acre or 221 per cent on the investment in fertilizers, was afforded by Plot 10 on which was used a complete fertilizer that included 100 pounds of kainit per acre The second largest profit, $9.56 per acre, was made on Plot 5 fertilized with cotton seed meal and acid phosphate. The average increase in pounds of seed cotton per acre due to cotton seed meal was 196 pounds; to acid phosphate, 123 pounds; and to the full amount of kainit (200 pounds), only 13 pounds of seed cotton per acre. We may safely conclude from this experiment and from a similar one conducted by Mr. J. F. Underwood on the same character of soil in 1911 that this grade of so-called barrens soil is very responsive to cotton seed meal, fairly responsive to acid phosphate, and that it requires but a small amount of potash. In both years the complete fertilizer, in which only 100 pounds of kainit per acre was used (Plot 10), was more effective and more profitable than the complete fertilizer containg 200 pounds of kainit (Plot 9). The composition of the fertilizer on Plot 10 which gave such favorable results was approximately the same as what the farmer usually buys as an 8-3-3 guano. Increase of seed cotton per acre when cotton seed meal was added:
To To To To unfertilized plot ----------------------------------acid phosphate plot -------------------------------kainit plot --------------------------------------acid phosphate and kainit plot----------------------248 lbs. 188 lbs. 164 lbs. 184 lbs. 196 lbs. 168 lbs. 108 lbs.

Average increase with cotton seed meal-------------------Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot ----------------------------------To cotton seed meal plot -------------------------------

52

To kainit plot________

----------------------------------------

98

lbs.

To cotton seed meal and kainit plot---------------------118 lbs. Average increase 'with acid phosphate_____------------123 lbs. Increase of seed cotton per acre when kainit was added: To unfertilized plot--------------------------------70 lbs. To cotton seed meal plot-------------------------------14 lbs. To acid phosphate plot---------------------------------00 lbs. To cotton seed meal and acid phosphate plot -- ---- 4 lbs 'Average increase -with kainit__________--------------13 lbs. Increase from use of cotton seed meal------------------------184 Increase from use of nitrate of soda --------64 Cotton seed meal better by-------____-------------------120
lbs. lbs. lbs.

Experiments in Lauderdaleand Marion Counties.
FLORENCE GLEN ALLEN

O V u

Z

Z

6

KIND OF
FERTILIZER

, Q
)

a

a

o

F

°WN ~N

0

,0

S

1 2 3 4 5
6

200 240 000 200 200 240
"~200

Lbs. Lbs. C. S. Meal 560 248 $6.92 Acid Phosphate __-_480 168 5.04 No fertilizer-------- 312----------Kainit------------_376 70 140 C. S. Meal- __ 656 356 9.56 Acid Phosphate _--

----------

Lbs.
540

Lbs.
80 $ 0.20

784 46 520 1076
640

324 55 606
165

11.28 0.80 .19.56
2.20

200 C. S. Meal

528 234

4.96

7 8

Kainit_---------000 No fertilizer-------_288 4 cdPosht-4018 0

36 3.640
18.90

480 8016 116

__ 40 4082 552

132

Kant -.S Phosphate_-__920Acid el ___0 408 1628 _-_ S200 Kainit---------_
200

_

13.24
16.00

90

240

--Acid Phosphate -- 608
C. S. Meal No fertilizer-Kainit----------Nitrate of Soda -

4352

100 Kainit----------)
11

f240 12 100
100

000

----- 224--

Acid Phosphate

-)

--

__

48

__---------48

536 312

7.60

1060

612

19.60

53
MARION COUNTY, 6 MILES NORTHEAST OF GLEN ALLEN W. P. LETSON Light colored sandy soil, with red subsoil This land has been in cultivation about 10 years. The stand was good except on Plots 1 and 3. No damage from rust or insects was reported. The preceding crop was oats. The largest profits were afforded by Plots 5 and 12. The former, fertilized with cotton seed meal and acid phosphate, afforded a profit of $19.56 per acre, or 418 per cent on the investment in fertilizers. Plot 12, which received a complete fertilizer containing acid phosphate and a half ration of kainit, and also nitrate of soda applied after growth began, showed a profit of $19.60 per acre or 400 per cent on the investment in fertilizers. Apparently kainit in the complete fertilizer was of no value, although when applied alone or with either one of the fertilizers it slightly increased the yield. The average increase in pounds of seed cotton per acre due to cotton seed meal was 154 pounds; to acid phosphate, 398 pounds; and to the full amount of kainit, only 43 pounds. The material chiefly needed by this soil was acid phosphate, which however. required to be supplemented by some form of nitrogen. Nitrate of soda made a better yield than cotton seed meal by 152 pounds.
Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plotTo acid phosphate plot --------------------------------------------To kainit plot_ To acid phosphate and kainit plot ----------------------Average increase 'with cotton seed meal -----------------Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot ----------------------------------To cotton seed meal plot ------------------------------To kainit plot ---------------------------------------------To cotton seed meal and kainit plot-80 lbs. 282 lbs. 110 lbs. 144 lbs. 154 lbs. 324 lbs. 526 lbs. 353 lbs. 387 lbs. 398 lbs.

Average increase 'with acid phosphate-----------

54
Increase of seed cotton per acre when kainit was added: To unfertilized plot------------------------------------55 lbs. To cotton seed meal plot--------------------------------85 lbs. To acid phosphate plot---------------------------------84lbs. To cotton seed meal and acid phosphate plot--------------54 lbs. A'verage increase
Increase with

kainit-----------------------------43

lbs.

from use of cotton seed meal-------------------------144 lbs. Increase from use of nitrate of soda--------------------------296 lbs. Nitrate of soda better than cotton seed meal by----------------152 lbs.

COLBERT COUNTY, 2 MILES EAST OF G. H. HARRIS Dark reddish clay loam, valley soil; red clay subsoil.

TUSCUMBIA

This experiment was located on the same plots where a similar one was conducted in 1911. This typical Tennessee Valley red land has been long in cultivation. No damage from insects or from rust was apparent. The largest profit, $6.96 per acre or 143 per cent on the investment in fertilizers, was obtained on Plot 12, where a complete fertilizer containing nitrate of soda was used. In a complete fertilizer it was more effective and more profitable to use 100 pounds (Plot 10) than 200 pounds (Plot 9) of kainit per acre. Evidently this soil needed in 1912 a complete fertilizer with but little kainit. Cotton seed meal and nitrate of soda were equally effective and profitable. Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot ------------------------------152 lbs. To acid phosphate plot------------------------------192 lbs.
To kainit plot--------

----------------------------------

184 lbs.

To acid phosphate and kainit plot------------------------170 lbs. Averags increase cwith cotton seed meal---------------------- 175 lbs.

Increase of seed cotton per acre when acid phosphate was, added:
To unfertilized

plot-------------------------------------

72 lbs.

To cotton seed meal plot-------------------------------To kainit plot-----------------------------------------To cottonl seed meal and kainit plot----------Average increase with acid phosphate------------------------

112 lbs. 34 lbs. 20 lbs.
60 lbs.

Increase of seed cotton per acre when kainit was added:
To To unfertilized plot acid phosphate
--------------------------------------

To cotton seed meal plot--------------------------------

plot ---------------------

48 lbs.
-22

16 lbs..
lbs.

------

To cotton seed meal and acid phosphate plot--------------Average increase 'with kainit-----------------------------Increase from use of cotton seed meal-------------------------Increase from use of nitrate of

-44 lbs.
1 lb.

Nitrate

of soda

soda ---------------------------

170 lbs.
172 lbs.

better than cotton seed meal by-----------------

2 lbs.

55

Experiments in Colbert and Limestone Counties.
TUSCUMBIA ATHENS

N

0

$k0

6

KIND OF FERTILIZER
__________

a
co i

0) Ooa

o'
%
-

WCa
i

I

.0

_____

___

K

J

.,

__

1 2 3 4
5 6

200 240 000 200
200

Lbs. Lbs. Lbs. Lbs. 152 $3.08 776 272 $7.88 C. S. Meal504 168 5.04 72 1.20 672 424 Acid Phosphate -No fertilizer 352------------504----------56 0.84 16 -0.76 560 Kainit------------368
C. S.

Meal-----

616

264

5.88 3.60

704 800

200 296

3.32 7.44

240
200

200
7 000

Acid Phosphate C. S. Meal-----. Kainit_________
No fertilizer

552
352-

200

---

504------------

81

9
10 11
12

240 200 200
240

Acid Phosphate Kainit________
C. S.

42
616

0-.8
220

70 936

12 324 206

34 6.88 2.86

Meal-

200
200

Acid Phosphate Kainit --__ C. S. MeaL-----

2.72

240 100 000 240
100

712 294 6.38 872 Acid Phosphate Kainit_________ No fertilizer-------440-----------720 Acid Phosphate
Kainit--------. 736 296 6.96 960

240

4.72

100

Nitrate of Soda

LIMESTONE COUNTY, 1 MILE SOUTHEAST OF ATHENS
EIGHTH DISTRICT AGRICULTURAL SCHOOL

(W. R. NETTLES, Agriculturist.) Dark red soil with red clay subsoil

This is a stiff upland soil, which has been in cultivation many years. No damage from worms or other insects was reported, but rust did some injury. The stand was good. The complete fertilizer on Plot 9 was the most effective combination, while cotton seed meal was the most
effective

and most

profitable of the single constituents. The average increase in pounds of seed cotton per acre was for cotton seed meal, 185 pounds; for acid phosphate, 58 pounds; and
for

kainit, 45 pounds.

56
Increase of seed cotton per acre when cotton seed meal was added: lbs. To acid phosphate plot--------------------------------32 lbs. To kainit plot --------------------------------------240 lbs. To acid phosphate and kainit plot--------162 lbs.
To unfertilized plot-------------272

Average increase 'with cotton seed meal--

-

-----

185 lbs.

Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot-----------------------------------168 lbs. To cotton seed meal plot-------------------------------72 lbs. To kainit plot__________________________-------------106 lbs. To cotton seed meal and kainit plot----------------------28 lbs. Average increase with acid phosphate-----------------------58 lbs.

Increase of seed cotton per acre when kainit was added: To unfertilized pIot-----------------------------------56 lbs. To cotton seed meal plot--------------------------------24 lbs. To acid phosphate plot---------------------------------6 lbs. To cotton seed meal and acid phosphate plot- ----124 lhs. A'verage increase 'with kainit-----------------45 lbs. Increase from use of cotton seed meal------------------------162 lbs. Increase from use of nitrate of soda--------------------------196 lbs. Nitrate of soda better than cotton seed meal by-----------------34 lbs.

LAWRENCE COUNTY, 2 MILES SOUTHEAST OF TOWN CREEK
Light

J. W. TERRY reddish soil with red clay

subsoil

This land has been in cotton for the last three years and perhaps It has been long in cultivation. Some damage was done by rust. The stand was good. M' Terry, having acted as a substitute for the party who had r. arranged to conduct the test, was not able to apply the fertilizer until June, when it was used as a side application. The largest profit, $7.04 per acre, or par cent on the investment in fertilizers, was obtained on 9, where a complete fer-

longer.

tilizer was

employed. However, an almost equal profit on Plot 6, receiving only cotton seed meal and kainit.

116 Plot

was made

Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot---------------------------------- 144 lbs. To acid phosphate plot-----------------------------24 lbs.
To kainit

plot--------------------------------------- ---

168 lbs.

To acid phosphate and kainit plot----------------------- 196 lbs. A'verage increase 'with cotton seed meal--------------133 lbs.

57

Increase
To To To To

of seed Cotton per acre when acid phosphate was unfertilized plot______________________----------112 lbs -8 lbs. cotton seed meal plot-----------------------------kainit plot----------------------------------------32 lbs. cotton seed meal and kainit plot-----------------------60 lbs.

added:

increase of seed cotton per acre when kainit was added:
Average increase 'with

Average increase 'with acid phosphate-----------------------49

lbs.
lbs.

To unfertilized plot ----------------------------------- 100 To cotton seed meal plot_______________-------------------------------124 To acid phosphate plot. ---------------------------- 20 To cotton seed meal and acid phosphate plot ----192
kainit-----------------------------109

lbs.
lbs.
lbs. lbs.

Increase from use of different quantities of kainit: To use of 200 pounds kainit----------------------------192 To use of 100 pounds kainit-----------------------------68

lbs. lbs.

Experiments in Lawrence
TOWN

County.
COURTLAND
'

CREEK

N

o

W

FERTILIZER

KIND OF

i

0W
0
NU

0

uS
a) tit -- -jI 4

.

1 2
4

31
5j

200 240
000 200
200

Lbs. C. S. Meal--------688 656 Acid Phosphate
No fertilizer... Kainit

----- --

-

Lbs. 144 112
.

$2.76 2.80
--

Lbs. 632 616
568672-

544 688
6

Lbs. 64 $-0.44 48 0.24 ----106 2.84
50

100
3

2.60
.

C.S.Meal---

240

Acid Phos.76 Kainital--No fertilizer
Kainit C. S.
__

13
944 720 268

0.6
6.32
220

0-224 44 88
422
3

58

6
7

200 000

984 560 88

12.48
64

-----------356 314 8.16 7.18

S200

9
10
11 12

200

Meal--

-

----

2410 200 200 240 100

Acid Phosphate Kainit C. S. Meal----) Acid Phosphate Kainit _.-No fertilizerKainit--_

J__--

1008 864

328 204

7.04 2.78

936 904

5 240
100

000 100

640-------.-

Acid Phosphate?
Nitrate of Soda_

------ 600-

----248 5.04

--- ----

848

58 LAWRENCE COUNTY, 22 MILES SOUTHEAST OF COURTLAND

W. E. HOTCHKISS Light reddish soil, with yellowish subsoil This land had been long in cultivation. The greatest profit, $12.48 per acre, or 284 per cent on the in vestment in fertilizers, was obtained from Plot 6, where a mixture of cotton seed meal and kainit was used. Next in profit were the complete fertilizers on Plots 9 and 10. Indeed, every application of fertilizer was profitable except when meal or phosphate was applied separately. The average increase attributable to cotton seed meal was 174 pounds of seed cotton per acre; to acid phosphate, 74 pounds; and to kainit, 192 pounds. Cotton seed meal was better than nitrate of soda in this test. In most other tests made on soils of the Tennessee Valley acid phosphate, as well as some form of nitrogen, has proved profit greater able; the results with potash have been variable. number indicate that not less than 200 pounds per acre is needed.

The

Increase of seed cotton per acre when cotton seed meal was 64 lbs. To unfertilized plot --------------lbs. To acid phosphate plo---------------------------------196 To kainit plot-----------------------------------------316lbs. -118 lbs. To acid phosphate and kainit plot_______---------------A'verage increase 'wc~ith cotton seed meal---------------------174 lbs. Increase of seed cotton per acre when acid phosphate was added:
To unfertilized

added:

plot

- - -------------------------

48 lbs.

To cotton seed meal

plot --------------------------------

180

lbs.

132 lbs. To kainit plot---------------------------------------To cotton seed meal and kainit plot ____--- -------- _ _------66 lbs.
__ A'verage increase 'with acid phosphate- ------------ __ _-------74 lbs.
106 lbs. 358 lbs.. 190 lbs.

Increase of seed cotton per acre when kainit was added:
To unfertilized plot____________------------------------------------To cotton seed meal To acid phosphate

plot --------------------------plot----------------------------------

To cotton seed meal and acid phosphate plot---------------- 112 lbs.
Average increase 'with kainit----------------------------__192 lbs.

Increase from use of different quantities of kainit:
To use of 200 pounds kainit----------------------To use of 100 pounds kainit-----------------------------112 lbs.. 70lbs.

Increase from use of cotton seed
Cotton seed meal better

meal---------

118 lbs..

Increase from use of nitrate of soda----------------------------

52 lbs..
66 lbs

by---------------------------------

59

WALKER COUNTY, 3 MILES SOUTH OF CORDOVA

G. L.

ALEXANDER

Sandy loam soil, with red clay subsoil This experiment was conducted on land which had been in cultivation about 40 years. It is a poor upland soil. No damage was done by rust or insects. The largest profit per acre, $12.70 or 239 per cent on the in fertilizers, resulted from an application of a complete fertilizer containing a half ration of kainit, Plot 10.

ment

invest-

Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot________________-_____------------256 lbs. To acid phosphate plot--------------------------------216 lbs. To kainit plot ------------------------------------328 bs. To acid phosphate and kainit plot------------------------268 lbs. Average increase 'with cotton seed meal------------------267 lbs. Increase of seed cotton per acre when acid phosphate was added:
- -- ---112 lbs. To cotton seed meal plot--------------------------------72 lbs.

To unfertilized plot------------------------To

kainit

plot ---------------------------------------

104 lbs.

To cotton seed meal and kainit plot------------------------

44 lbs..

Average increase 'with acid phosphate------------------------ 83 lbs.. Increase of seed cotton per acre when kainit was added: 'f'o unfertilized plot------------------------------------To cotton seed meal plot--------------------------------To acid phosphate plot---------------------------------To cotton seed meal and acid phosphate plot---------------

-12 lbs". 60 lbs.. -20 lbs..
32

lbs.

Average increase 'with kainit------------------------------- 15 lbs. Increase from use of different quantities of kainit: To use of 200 pounds kainit-------- ---------------------- 32 lbs. To use of 100 pounds kainit------------------------------ 124 lbs..
Increase from use of cotton seed Increase from use of nitrate of

meal------------------------soda --------------

268 lbs.. 232 lbs.

Cotton seed meal better by-------------------------------

36 lbs.

60

Experiments in Walker and Morgan Counties.
CORDOVA HARTSELLE

4J

044

_

o

a

KIND OF FERTILIZER

'd
a

o a

s.

1L 2 3 4 5

7

200 C. S. Meal----__ -- 816 256 $ 7.24 672 112 2.80 240 Acid Phosphate _000) No fertilizer-------560-------27 200 Kainit-_ 544 -- 12 -1.88 200 C. S. 880 328 8.44 S240 Acid Phosphate 200 C. S. 864 316 8.24 20Kainit.____. 000 No fertilizer-------544 _320

472 296 296
504

200 24 12
208

Meal-

------

-

-0.72 0.92
3.64

$5.00

Meal-----

488

280

6.80

9
10 '11
12

240 200 240 200

200

Acid Phopanit te C. S. Meal----Acid Phosphate Kainit

624

92

0.60

408

72-0.20

C. S. Meal _____
Acid Phosphate
Kainit----

)

880 960 452 12.70 640 272 5.50

240 100 000 240 100 100

No fertilizer---- Acid Phosphate Kainit-------Nitrate of Soda_

496-384-----------912 416 11.76 568 184 2.48

MORGAN COUNTY, 34 MILES EAST M. WHITE

OF

HARTSELLE

Grey sandy loam, with yellow clay subsoil
This land has been in cultivation about 20 years. The preceding crop was cotton. The stand was good. No injury is recorded from insects or rust.
The largest profit per acre, or 155 per cent on the investment in fertilizers, was obtained on Plot 6 fertilized with cotton seed

$6.80,

use of
tion

meal and kainit. This was closely followed by the profit from the cotton seed meal alone, $5.00 per acre, and by the profit on

Plot 10, which, received a complete fertilizer of kainit. pounds.

containing

a half ra-

The average increase attributable to cotton seed meal was 206 pounds; to acid phosphate, only 11 pounds; and to kainit, only 24 Cotton seed meal was more advantageous than nitrate of soda.

61
Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot-----------------------------------200 lbs. To acid phosphate plot--------------------------------184 lbs. To kainit plot-----------------__--268 lbs. To acid phosphate and kainit plot 160 lbs.
Average increase -with cotton seed meal_ _ -------------_ ____

2

.
lbs.

Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot------------------------------------24
To cotton seed meal plot
----------

To kainit plot To cotton seed meal and kainit plot-------------------Average

8 lbs. 60 lbs. -48 lbs. Ilbs.
12 lbs.
-80lbs.

increase

with

acid phosphe

------------------ -

Increase of seed cotton per acre when kainit was added: To unfertilized plot-----------------------------------To cotton seed meal plot ______-----

To acid phosphate plot---------------------------------48 lbs. To cotton seed meal and acid phosphate plot---------------24 lbs. Average increase with kaizit---------------

1___lbs.
lbs. lbs. lbs.

Increase from use of different quantities of kainit: To use of 200 pounds kainit-----------------------------24 To use of 100 pounds kainit-----------------------------64 Increase from use of cotton seed meal------------------------160
Increase from use of nitrate of

Cotton

seed

soda --------meal better by----------------

72 lbs.
-EAST

--OF

88 lbs.

CULLMAN COUNTY, 5 MILES HANCEVILLE
A.

W. JOHNSTON

Gray sandy soil, with yellow subsoil

This is an uspland soil of medium fertility.

Some damage was
12, fertilized

done by with

rust

on Plot 5. soda applied late.
the plots

The largest profit per acre was afforded by Plot
a complcte fertilizer containing nitrate of The next

This was $10.16 per acre, or 209 per cent
fertilizers.

largest profits were
-(Plots

on_ the investment in
also made by

receiving complete fertilizers

,forotton c

The average increase in pounds seed cotton per acre was, for seed meal, 154 pounds; for acid phosphate, 60 pounds; and
kainit 114 pounds.

of

9 and 10).

Evidently this soil needed a complete fertilizer.

62
Increase of seed cotton per acre when cotton seed meal was lbs. To unfertilized plot-------------------------------------92 To acid phosphate plot__________----------------------348 lbs. To kainit plot------------------------------------------80 lbs. ---------------- 194 lbs. To acid phosphate and kainit plot-----__ Average increase with cotton seed meal---------------------154 lbs. Increase of seed cotton per acre when acid phosphate was added: 44 lbs. To unfertilized plot --------------------------------------212 lbs. To cotton seed meal plot -------------------------------To kainit plot---------------------------------------22lbs. - -92 lbs. To cotton seed meal and kainit plot--------------60 lbs. Average increase 'with acid phosphate Increase of seed cotton per acre when kainit was added: 4,lbs. ---To unfertilized plot ------lbs. To cotton seed meal plot-------------------------------132 166 lbs.. To acid phosphate plot--To cotton seed meal and acid phosphate plot----------------12 lbs. 114 lbs. Average increase 'with kainit ---------------------------lbs. Increase from use of cotton seed meal-------------------------194 Increase from use of nitrate of soda---------------------------216 lbs. Nitrate of soda better than cotton seed meal by----------------22 lbs.

added:

Experiments in Culiman and Marshall Counties.
IJANcEVILLE

BOAZ
0 ... 0

O

N

0

~
)W-

s-.

KIND OF oFE o o R TILIZ E R
Z

o

a C
f
+

0

-4
+ .

d

0

c ;

1

2C0

2
3

240
000 200

Meal -------Acid Phosphate-_
C. S.

I Lbs.
420

Lbs.
92 $ 0.68

Lbs.
852

Lbs.
364

__

284
456

-44
144

3.44
4.36

744
612

256
104

$11.56 8.56
2 .76

4

No fertilizer-------328---. Kainit-----------

48------------48-

5 200 S240
6

C. S. Mel_ Acid Phosphate
Kiit---C. S.

600
504 264

304
224

7.48
456

792
828

264
280

5.881
6.8020 ------

200 000

Meal~----

7
8

No fertilizer-__

9
10
11

Acid Phosphate Kainit - ---20C. S. Meal --240 Acid Phosphate --Kainit ----200 240
200
1

39 600 648

------1.0
12 316 354 6.56 8.78

8 56-----88 70

44 12.96, 10.30

972 852
44------

476 392

200

C. S.

Meal --

240 100
000

Acid Phosphate Kainit___-_
No fertilier__
__

04---__----

42...... -----520 15.92'

240
12 100 100

Acid Phosphate
Kainit--------Nitrate of

Soda-

680

376

10.16

944

63 MARSHALL COUNTY, 6 MILES SOUTHWEST OF BOAZ

J.

ROBT. SMITH

Light colored sandy soil, with yellowish subsoil
This experiment was conducted on an upland soil which has
been in cultivation 20 to 25 years. The preceding crop was corn. No damage is reported from rust or insects. The stand was good.

The largest profit, $15.92 per acre, or 327 per cent on the snent in fertilizers was made on Plot 12, where a complete fertilizer containing nitrate of soda was used. The next largest profit was made on Plot 9, which was $12.96, or 213 per cent on the investment in fertilizers. Every fertilizer made a profit, whether used singly or in a combination. The average increase in pounds of seed cotton per acre due to cotton seed meal was 209 pounds; to acid phosphate, 109 pounds; and to kainit, 41 pounds. However, in the complete fertilizer each of the three fertilizer constituents was more useful than is indicated by these average figures. The use of 200 pounds of kainit per acre was more effective than was 100 pounds. Nitrate of soda was more useful than cotton seed meal. Increase of seed cotton per acre when cotton seed meal was To unfertilized plot ----------------------------To acid phosphate

invest-

added:

plot--------------------------------

364 lbs.
8 lbs.

To kainit plot------------Average increase

------------------176 lbs. To acid phosphate and kainit plot ------------------------- 288 lbs. 'with
cotton seed meal

----------------------

209 lbs.
lbs.

Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot_------------------__----------------256 lbs.
To cotton seed meal

plot ------------------------------------------

-100

To kainit plot------------------------------------------------------

84 lbs.

To cotton seed meal and kainit plot

196 lbs.
- -- - ----109 lbs.

A'verage increase 'with acid phosphate-- -- -- -To unfertilized

---- -

Increase of seed cotton per acre when kainit was added:
To cotton seed meal
To acid

plot---------------------------- ------ 104 lbs. plot -----------------------------84 lbs. phosphate plot --------------------------------68 lbs.
'with
kainit--------------------------41 lbs.

To cotton seed meal and acid phosphate plot---------------- 212 lbs.
A'verage increase

64
Increase from use of different quantities of kainit: To use of 200 pounds kainit--------------------------212 To use of 100 pounds kainit ----------------------------- 128 Increase from use of cotton seed meal (Plot 9)---------------288 Increase from use of nitrate of soda-----------------------416
Nitrate of soda better than cotton seed meal by------------

lbs lbs.

lbs.
lbs.

128 lbs.

CHEROKEE COUNTY, 6 MILES NORTH OF RENCE, NEAR GAYLESVILLE

LAW-

J. F. WESTBROOK
Gray sandy loam, wit/ red clay
subsoil

This is an upland soil which has been long in cultivation-60 years or longer. The original forest trees were oak and short leaf pine. Corn was the preceding crop, with cotton the two years before that. The stand was perfect on all plots. No damage was done by insects or rust. The largest profit, $13.36 per acre, or 274 per cent on the investment in fertilizers, was afforded by Plot 12 on which a complete fertilizer containing nitrate of soda was applied. Of the three separate fertilizer constituents, cotton seed meal was the most effective. The average increase in pounds of seed cotton per acre due to cotton seed meal was 223 pounds; to acid phosphate, 98 pounds and to kainit, 28 pounds. Increase of seed cotton per acre when cotton seed meal was added:
To unfertilized plot--------------------------------To acid phosphate

304 lbs.
---------- 124 lbs.

plot --------------

To kainit plot-----------------------------------To acid phosphate and kainit plot - _- -- A'verage increase with cotton seed

_meal-----------------------------------------

316 lbs.
lbs.
223 lbs.

_-------148

Increase of seed cotton per acre when acid phosphate was added:
To unfertilized To kainit

plot ---------------------------------

248 lbs. 122 lbs.

To cotton seed meal plot_----------------------------__68 lbs.

plot --------------------------------------

To cotton seed meal and kainit plot

-- 46 lbs.

Average increase 'with acid phosphate---------------98

lbs.

Increase of seed cotton per acre when kainit was added:
To unfertilized plot---------------------------------To cotton seed meal plot-

26 lbs.
38

--- -------------

lbs.

65
------ 100 lbs. To acid phosphate plot_-_---------------------To cotton seed meal and acid phosphate plot-------------- -76 lbs. A'verage increase 'with kainit------------------------------28bs. Increase from'use of cotton seed meal------------------------148 lbs. Increase from use of nitrate of soda--------------------------280 lbs.. Nitrate of soda better tban cotton seed meal by----------------132 lbs.

Experiments in Cherokee County.
GAYLESVILLE CEDAR BLUFF

0

i

s a

O

0?

~0
5)

aa

Z

o

a

KIND OF FERTILIZER

' o O C i..4c
'

F 4,

V
O

0

N

0~e

N

N

i,

a'

(.

c5i

r,.N

1 2 3 4

200 240 000
200

200 240
6

C. S. Meal--_____ Acid Phosphate __ No fertilizen,_, Kainit ---C. S. MeaL Acid Phosphate Kainit. No fertilizer--___Acid Phosphate Kainit-------__ C. S. Meal___
Acid Phosphate I

Lbs. Lbs. 744 304 $ 9.16 688 248 8.24 440-------30 488 26 0.3 856 372 10.20

Lbs.
552

Lbs.
248

416 416 624

112 108 312

$6.92 2.80
2.92 7.80

200 000
240

------

528---------

320--------

8
9

656
784

148
296

2.84 5.76 7.58

416 560 544

118 284 290

1.64 5.28 6.22

200 200
240

10
11

200
200

Kainit_______C. S.

240 100

Acid Phosphate Kaint_----No fertilizer------

Meal --

792
448_

324

000

240 12~ 100
100

Acid Phosphate Kainit

Nitrate of Soda.

__-- S
904

232.......

456

13.36

456

224

408,

CHEROKEE COUNTY, 11z MILES SOUTHEAST OF CEDAR BLUFF
PAUL BISHOP ON THE FARM OF D. N. WILLIAMSON

Dark grey loam soil,

with red clay subsoil

The land on which this experiment was conducted has been in

cultivation more than 75 years.

The preceding' crop was cotton.

It is not subject to any special disease.

No damage was reported

66

ffrom worms or other insect pests. The stand was poor; a falling
off in the stand was especially noted on the unfertilized plots; also, on plots 6, 9, 10 and 12. The largest profit, $7.80 per acre, or 145 per cent on the investt ment in fertilizers, was obtained on Plot 5 fertilized with 200 pounds cotton seed meal and 240 pounds of acid phosphate. Apparently potash was not needed on this soil in 1912. The average increase in pounds of seed cotton per acre was, for cotton seed meal, 139 pounds; for acid phosphate, 81 pounds; while with kainit there was on the average a loss of 4 pounds per acre. Cotton seed meal applied before planting was slightly better than .nitrate of soda applied when plants were about six inches high. Increase of seed cotton per acre when cotton seed meal was added: 248 lbs. ------------------------------To unfertilized plot lbs To acid phosphate plot--------------------------------10) 40 lbs. -----------------------------------To kainit plot
To acid phosphate and kainit plot-166 lbs. Average increase with cotton seed meal ---------------------- 139 lbs. Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot ------------------------------------- 112 lbs. To cotton seed meal plot-------------------------------64 lbs.

To kainit plot ---------------------------------------To cotton seed meal and kainit plot--------------------136

10 lbs.
lbs.

Average increase CVith acid phosph ate-----------------------81 lbs. Increase of seed cotton per acre when kainit was added:
To unfertilized

plot-----------------------------------108
---------------------

lbs.

To cotton seed meal plot

100 lbs.

To acid phosphate plot
To

-----------------------

cotton seed meal and acid phosphate plot------

--------- -28 lbs.
4 lbs.

6 lbs.

Average increase -with kainit-------------------------------

166 lbs Increase from use of cotton seed meal------------------------Increase from use of nitrate of soda--------------------------- 100 lbs. 66 lbs. Cotton seed meal better by ------------------

BLOUNT COUNTY, 6 MILES WEST

OF

ONEONTA

W.
Gray gravelly

F. TIDWELL

loam soil, with silt and stone sutbsoil
Exactly the same number of

This land has been in cultivation for more than 25 years. There
was no damage from rust or insects. plants was left on each plot.

The greatest profit, $16.54 per acre, or 302 per

cent,

on the in-

67 vestment in fertilizers, was obtained from the application of a complete fertilizer containing a half ration of kainit (Plot 10). This plot also gave the largest profit in an experiment which Mr. Tidwell conducted on similar land in 1911. The average increase in pounds of seed cotton per acre was 223 pounds for cotton seed meal; 91 pounds for acid phosphate; and there was an average loss of 9 pounds per acre where 200 pounds of kainit per acre was used. One hundred pounds of kainit was advantageous in the complete fertilizer.
Increase To To To To of seed cotton per acre when cotton seed meal was added: lbs. unfertilized plot-----------------------------------480 acid phosphate plot---------------------------------120 lbs. kainit plot------------------------------------------152 lbs. acid phophate and kainit plot------------------------140 lbs.
lbs.

Average increase with cotton seed meal---------------------223

Increase of seed cotton per acre when acid phosphate was added:
To unfertilized

plot----------------------------------

To cotton seed meal plot----------------------------To kainit plot--------------------------------------To cotton seed meal and kainit plot------------------------

-72 lbs. 80 lbs.
68 lbs. 91 lbs.
172 lbs.

288 lbs.

Average increase with acid phosphate- -- -- -- -_- -- -- -- -- -- -- --

Increaselof seed cotton per acre when kainit
To unfertilized To cotton seed
To

plot.---------------------------------meal plot -----------------------------plot---------------------------36

was added:

-

-156

lbs.

acid phosphate

lbs.
lbs.
lbs.
-----

To cotton seed meal and acid phosphate plot-- -- -- -- -- -- -- - -16
Average increase cwith kainit
--------------

-9

68

Experiments in Blount and Shelby Counties.
ONEONTA
0
0

MONTEVALLO

N0i.

5)

~

0
o
W

KIND OF

o
Z

o
i

FERTILIZER
a d Nc

,

1 2 3 4 6
7

200 240 000 200
200

S240 200 200 000
240

8f

9
10
11

8 200 240 200

200

100

240

Lbs. Lbs. Lbs. C. 8. Meal-______ 1168 480 16.20 576 Acid Phosphate 976 288 9.84 544 No fertilizer-----688-5 Kainit-----------_864 172 5.48 560 C. 8. Meal 1104 408 11.64 592 Acid Phosphate C. S. Meal ___ 1024 324 8.56 656 Kainit________ No fertilizer-------704---------------46 Acid Phosphate 976 252 Kainit-------96 2 C. S. Meal Acid Phosphate 1 1136 392 9.60 688 Kainit_______._ C. 8. Meal__,, Acid Phosphate 1 1312 548 16.54 560

--J

Lbs. 64 $-0.44 32 -040 60104

-0.42

1.00
2.80

180

----

240 120

3.52 -0.58

Kainit________

000 240
100

No fertilizer-----Acid Phosphate
Kainit

784---------------432

12

100

Nitrate of Soda_

---

1168

384.

10.48

656

224

4.08

SHELBY COUNTY, 1 MILE NORTHEAST OF MONTEVALLO H. E. BUTLER

Red clay soil This land has been in cultivation 12 years. The preceding crop was cotton. No notes on stand or insect damage were reported. The early frost caught this crop with a large number of green boils. The largest profit, $4.08 per acre, or 82 per cent on the in fertilizers, was obtained on Plot 12, on which a complete fertilizer containing nitrate of soda was used.

ment

invest-

Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot ------------- - ------------To acid phosphate plot---------------

64 lbs.

72 lbs.

69
To kainit plot---------------------------------------___120 lbs. To acid phosphate and kainit plot-----------------------232 lbs. A'verage increase with cotton seed meal---------------------122 lbs. Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot ------------32 lbs.
To cotton seed meal plot-------To kainit plot------------------------------

----

40 lbs. -52 lbs.

To cotton seed maal and kainit plot----------------------60 lbs. Azverage increase withz acidphosphate------------------------20 lbs. Increase of seed cotton per acre when kainit was added: To unfertilized plot ---------------------------------- 60 lbs. To cotton seed meal plot _-___-__---------------116 lbs. To acid phosphate plot_________-------------------24 lbs. To cotton seed meal and acid phosphate plot---------------136 lbs.
Average

increase

,ith

kainit

--------------------------72 lbs.

Increase from use of different quantities of kainit To use of 200 pounds kainit______________-------------136 lbs. To use of 100 pounds kainit------------------------------16 lbs. Increase from use of cotton seed meal (Plot 9)------------------232 lbs. Increase from use of nitrate of soda--------------------------336 lbs.

Nitrate of soda better than cotton seed meal by--------------104

lbs.

BIBB COUNTY,

MILE WEST OF BRENT J. D. JAMES Red clay loam, with red subsoil
1

This experiment was conducted on land which has been in cultivation for 75 or more years. The preceding crop was corn and

cow peas. The stand was good. There was no notable damage by rust or insects. The largest profit, $15.26 per acre, or 284 per cent on the

vestment

in-

in fertilizers, was made by a complete fertilizer consisting of 200 pounds of cotton seed meal, 200 pounds of acid phosphate

and 100 pounds of kainit. This was closely followed by profits of $14.08 and $13.68 on the other two plots which received complete fertilizers (Plots 9 and 12). Of the separate ferlilizer constituents cotton seed meal was the
most

effective

and profitable, whether applied alone or in combina-

tion with phosphate and kainit. The average increase in pounds of seed cotton per acre was, for cotton seed meal, 231 pounds; for acid phosphate, 55 pounds; and for kainit, 83 pounds.

One hundred pounds of kainit was fully as effective as 200
pounds in a complete fertilizer. The increase from cotton seed meal was greater by 52 pounds per acre than from nitrate of soda. Increase of seed cotton per acre when cotton seed meal was added:
To unfertilized To acid

plot---------------------------------

344 lbs.
8 lbs.

To acid phosphate plot------------------------------____ To kainit

A'verage increase

plot--------------------------------------- 184 lbs. phosphate and kainit plot---------------------- 388 lbs.
'with ctten seed

meal -------------------

231 lbs.

70
Increase of seed cotton per acre when acid phosphate was added:
168 lbs. To unfertilized plot ----------------------------------To cotton seed meal plot------------------------------168 lbs. To kainit plot-----------------------------------------8 lbs. lbs. To cotton seed meal and kainit plot----------------------212 Avuerage increase with acidphosphate--------------------_ -55lb.

Increasejof seed

cottonjper acre when kainit was

added:

To To To To

108 lbs. ----------unfertilized plot----------------52 lbs. ------------------------------cotton seed meal plo ------------------------------- 52 lbs. acid phosphate plotcotton seed meal and acid phosphate plot-------------328 lbs. A'verage increase with kainit -------- --------83lbs

Increase from use of different quantities of kainit:

328 lbs. To use of.200 pounds kainit------------------------lbs. To use of 100 pounds kainit----------------------------340 lbs. Increase from use of cotton seed meal (Plot 9)------------------388 Increase from use of nitrate of soda--------------------------336 lbs. 52 lbs. -------Cotton seed meal better by-----------___________

Experimenfs in Bibb and Coosa counties.
RENT EQUALITY

Z

+
,

N

0

O 1 UOvN

O 0
,ea

C
.,

KIND OF FERTILIZER

N
aU

ed
0sueC

a

Ck

c0+
w

°

4Lbs. $10.76 Lbs.
1 200 C. S. Meal---- 952 344

Lbs.
768

Lbs.
312 $9.48

2
3

240
000
200

Acid Phosphate____
No fertilizer
-___608

776 168
_

5.04
-

632
456

176
82

4
5

Kiainit-------------

1

200 240

C. S. Acid Phosphate__

Meal-

-)

U..

736

108

2.92

520

---1.88

5.36
5.72

824 176

2.36

680

260

6j

7
9 10
11

200 S200
000 0

C. S. Meal _-?

Kainit----------

960 292
688-----0 1

.7.28

648
384 4 6

246
_82 7

5.44
02

No i fertilizer-------A h s h t

-----.6

20 5200 240 200

Kainit_---------C. S.

5 000 240
100
000
5

Acid Phosphate Kainit----------)

Meal --

_

1200 504

14.08 15.26
___392----

688 856

300 466

5.92 3.26

C. S. Meal-__

~ 1216 516 Acid Phosphate Kainit--------_
No fertilizer-------704 __ 1168 464

--

240
100 100

Acid Phosphate~)
Kainit-----------.
Nitrate of Soda

--------768 376 10.16

12

---

13.68

71 COOSA COUNTY, 16 MILES SOUTH OF ALEXANDER CITY-NEAR EQUALITY W. M. BLANKENSHIP Gry soil, with reddish subsoil This land has been in cultivation for 75 years. The stand was good. No damage from insects or rust was reported. The largest profit, $13.26 per acre, or 272 per cent on the investment in fertilizers, was afforded by Plot 10, where a complete fertilizer containing 100 pounds of kainit was used. The next largest profit, $10.16 per acre, was on Plot 12, which received acid phosphate, nitrate of soda, and 100 pounds of kainit per acre. The average increase in pounds of seed cotton per acre attributable to cotton seed meal was 198 pounds; to acid phosphate 42 pounds; and with 200 pounds of kainit there was a loss of 50 pounds per acre, although 100 pounds per acre was very effective.
Increase of seed cotton per acre when cotton seed meal was added.
To unfertilized plot--------------------------

312 lbs.

To acid phosphate plot---------------------------------84 lbs. To kainit plot----------------------------------164 lbs. To acid phosphate and kainit plot- 230 lbs. Average increase ith coton seed meal 198 lbs. Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot-----------------------------------176 lbs. To cotton seed meal plot-------------------------------52 lbs. To acid phosphate plot------12lbs. To cotton seed meal and and acid phosphate plot------------54 lbs. Average increase 'with acid phosphate-------------------42 lbs. Increase of seed cotton per acre when kainit was added: To unfertilized plot------------------------------------82 lbs. To cotton seed meal plot-------------------------------66 lbs. 106 lbs. To kainit plot- ------------------------------------.--To cotton seed meal and kainit plot---------------- ----- 40 lbs. 50 lbs. Average increase 'with kainit------------------------------

Increase from use of cotton seed meal -- -- -- -- -- -- -- -- -- -- ---230

lbs.

Increase from use of nitrate of soda--------------------------- 140 lbs. 90 lbs. Cotton seed meal better by--------------------------------In COLBERT COUNTY, an experiment was conducted by W. E. Hargett, near Tuscumbia. This proved inconclusive because of poor stand on some

of the plots. See page 74. In MADISON COUNTY, an experiment conducted by G. E. Hoy, near Huntsville, proved inconclusive because of lack of uniformity in the yields of the unfertilized plots. See page 74. In MADISON COUNTY, an experiment was conducted by C. T. Butler, 11
miles south of Gurley. This experiment proved inconclusive because of the difference in fertility of the unfertilized plots, probably caused by the application of heavy amounts of potash in 1911. See Page 74. In FRANKLIN COUNTY, an experiment was conducted by F. Dennis, near Russellville. It was inconclusive.

In MORGAN COUNTY, an experiment was conducted near New Decatur, by L. B. Wyatt. This proved inconclusive because of poor stand ansd unfavorable weather conditions.

72
In DEKALB COUNTY, an experiment conducted by J. J. Sampley on the farm of J. B. Isbell, near Ft. Payne, proved inconclusive, probably because cotton worms injured the experiment. Under these conditions acid phosphate was extremely helpful and profitable because it enabled the bulk of the crop to mature before damage was done by the cotton caterpillar. The apparent loss on the plots where cotton seed meal was used may have been due to a later growth on these plots, resulting in greater damage by worms. See page 74. In WINSTON COUNTY, R. J. Mobley conducted an experiment near Natural Bridge. This proved inconclusive because of lack of uniformity in the yield of the unfertilized plots.
In BLOUNT COUNTY, an experiment conducted by W. E Lecroy, near

Oneonta, proved inconclusive because of lack of uniformity in fertility of the different plots.
In ETOWAH COUNTY, an experiment conducted by T. A.

the natural
Lewis, 54

miles east of Gadsden, proved inconclusive because of lack of uniformity in the yields of the unfertilized plots. See page 74
In LAMAR COUNTY, an experiment conducted by Jack Woods, 6 miles

south of Sulligent, proved inconclusive because all check plots were left out.
In ST. CLAIR COUNTY, an experiment conducted by Jenkins and Steven-

son, near Asheville, proved inconclusive because of lack of uniformity in the natural fertility of the unfertilized plots. See page 73.
In CALHOUN COUNTY, an experiment was conducted by E. M. Cowden,

The soil was dark red with red clay subone-half mile east of Alexandria. soil and has been long in cultivation. This experiment proved inconclusive probably because of the late date of planting, May 20th, aod the early frost. Under these conditions kainit was apparently not needed, while cotton seed meal and acid phosphate, both when used separately and in a complete fertilizer, were effective. See page 73. In PICKENS COUNTY, an experiment conducted by L. R. Hollingsworth, near Reform, proved inconclusive because of lack of uniformity in the yields of the unfertilized plots. See page 74. In PICKENS COUNTY, an experiment was conducted by E. Sanders, near Aliceville, on red upland soil. This proved inconclusive because of one of the unfertilized plots afforded a much larger yield than the other two. However, the figures suggest that nitrogen was especially beneficial both in the form of cotton seed meal or nitrate of soda. S ee page 74. In TUSCALOOSA COUNTY, an experiment conducted by H. T. Burks, near Tuscaloosa, proved inconclusive because of being mixed in picking.
IN TALLADEGA COUNTY, an experiment conducted by W. Boaz, near

See page 73. Childersburg, proved inconclusive. IN TALLADEGA COUNTY, an experiment conducted by J. R. Weisinger, near Talladega, proved inconclusive because of late planting and further delay in germination. In spite of these unfavorable conditions there was a satisfactory increase from the use of cotton seed meal, and a still larger increase was obtained from the use of nitrate of soda. See page 73. In CLAY COUNTY, an experiment conducted by J. F. Lester, near Lineville, proved inconclusive because of late planting. However, the results suggest that cotton seed meal was more important than acid phosphate, and that in 1912 there was no advantage from using kainit on this soil. Page 73.
In RANDOLPH COUNTY, an experiment conducted by R. E. Taylor, near

Roanoke, proved inconclusive.

See page 73.

In BIBB COUNTY, an experiment at Randolph, conducted by unfertilized plots. See page 73. In CHAMBERS COUNTY, an experiment conducted by W. T.

J.

E. Perry,

proved inconclusive because of the lack of uniformity in the fertility of the
Edge, near

Cusseta, proved inconclusive because of lack of uniformity between the unfertilized plots.

Inconclusive Experiments

in

Talladega, Clay, Randolph, Bibb,

St.

Clair

and

Calhoun Counties.

CHILDERSB'G
0

TALLADEGA
0 0

LINEVILLE +, Wa
N

ROANOKE
00

RANDOLPH
0

ASHEVILLE
0

ALEXANDRIA
0
0a

C) N

0

a,
O."

0

O0

O0
004)
d0

z
0-

O
. v-

KIND OF FERTILIZER

0)

b 0 ",

ac >.4 0
C30)3

V, O0 oa, i..

0 V w0 ba a,

a, "0 ( 0a,

"0 v a
t

aON

C

D0~
H-C)

a,0 D

ba

-

-O

>40

1 2 3 4

7.

94
104 11 12{

200 240 000 200 200 240 200 200 000 240200 200 240 200 200 240 100 000 240 100 100

Acid

C. S.

Meal---Phosphate

--

No fertilizer__-_

C.

Kainit S. Meal_-

---------.

Acid Phosphate C. S. Meal-__

Lbs. Lbs. 840 -616 1040 1456 1616 1536 140 1416 1336 1352 1320
1064

Lbs. 560 448 432 280 504 504 336 504 504 504 224 576

10

Lbs. 320 272 208 256 560 432 320 336 392 544 288 576

Lbs. 112 64
-20

296 140 24 88 148

Lbs. 480 312 168 248 560 405 312 240 440 340 300

Lbs. 312 144 44 320 129 -69 134 37

Lbs. 880 720 680 728 776 688 664 640 760 664 392

Lbs. 200 40

4 20 44

fLbs Lbs. 896 -__168 1000 -64 1064 1016 -14 1192 196 1184 928 864 222 -4 312 244

Lbs. 720 640 528 592 784 616

Lbs. 192 112 8 144 -80 -126 84 174

Acid Acid
Kain

Kainit------fertilizer--Phosphate Kainit-------

50 -14 -16 -

No
C.

352)

752
616
8161

S.

Meal-Phosphate

1

23211 11201 204 992 688 320 952

Kainit-_-_----

Acid

C. S.

Meal--

Phosphate

it__-_-_

272

896, 712

No fertilizer-Phosphate

Acid

Kainit-___ Nitrate of Soda_

288

548

248

712

264

792

80

Inconclusive Experiments in Colbert, Madison, DeKaib, Winston, Etowah and Pickens Counties.
" TUSCJMBIA HUNTSVILLE GURLEY FT. PAYNE DELMAR GADSDEN REFORM ALICEVI

.

0 0
a g

0
0
0

0
P

0

p
,
0

0
.

2
y'd

0

I
0 1a y

0o

-'

aa
wU

KIND OF FERTILIZER

?
us.

I

0 0
N

5

Zd-+
c

C. '

i

N
"

V
cd5

0W
N
m

4Q) V
m

u

0
m

'

N

W W
0

o" N
0
C

'b

a3 cS
0

a

N

"u0r
CI

c5

ta
,

N

c
0

d
1

+-+
~

c'4
1 )

U5)

-

0)

-

0

-

0

5)

0-

.)

-5

1 2
3

200

240
000

4
5

200 20 240 S200
000

00200 --No fertilizer----

C. S. Meal--------256 Acid Phosphate __ 512 248 No fertilizer--___ --_-_-__ 416 KainitC. S. Meal _696 Acid Phosphate C. S. Meal 408 KainiL.
352

8

------142
396
82

264

696 -144 800 840_

-40
150 292
338

608 768

64 224

1088 1328
1472

5 4-__ 784 288 1008 560
X68

800 -192 320 1312 992 -____

512
536 486

32
56
_-_--_

944
1040 800

144
240
-

1144 1072 984
1192

.872 176 728 960 968--_- 576

-8
200 208

1072 1120 928

84 136 -52
------

544 800
608

48 288
80 -- --

1032
976

77

6 292
266 ------

720 896
800

7 1

368
-----

512

7

--126 204 282

1232--------

352
784 944 784

976
1360 1056 1040
832

544
660 688 560
320

680
704 616 416
-

584
784 720 992
704
_--

840
170 76 318 728 864 936 0 360 896

-

80 9 10
11

Aid Phosphate_

472

1120 824 728
512

68 -- 48 36

476 680 564
-____

420 152 172
______

172 256 184
-

130 148 54

-5 14 27
--

200 240 200
200

C. S. Meal -Acid Phosphate ~ 544 Kainit--------)
C. S.

Meal

-

--

_

240 100
000

Acid Phosphate~ Kainit--------)
No fertilizer---

616
328

12

240 100 100

Acid Phosphate __-_ Kainit Nitrate of Sodal

--136

----- 176
--

256

464

512

624

448

1216

384

656

336

568

312

1064

28