tbVtact

BULLETIN No. 169

JANUARY, 1913

ALABAMA

Agricuhural Experiment Station
OF THE

Alabama Polytechnic Institute
AUBURN

Local Fertilizer Experiments With Cotton iii South Alabama in 1912.

J.

F. DUGGAR,

J. T. WILLIAMSON and
L. J.

HAWLEY.

Opelika, Ala. Post Publishing Company 1913

COMMITTEE OF TRUSTEES ON EXPERIMENT STATION.
HON. R.F. KOLB

-------

_Montgomery
____Ozark -

H. L. MARTIN ______ HION. A. W. BELL_______

HON.

____Anniston -

STATION STAFF.

J.

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

DEPARTMENTAL ORGANIZATION.
AGRICULTURE: 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.
HORTICULTURE:

J.

C. A. Gary, Veterinarian. A. 5. McAdory, Assistant.
CHSEMISTRY:

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

ENTOMOLOGY:

B. B. Ross, Chemist, State Chemist

W. E. Hinds, Entomologist. W. F. Turner, Assistant. J. A. Dew, Field Agent.
ANIMAL INDUSTRY:

J. T.Anderson,

Chemist, Soil&Crops

C. L. Hare, Physiological Chemist T. Bragg, First Assistant.
EXTENSION:

L. N. Duncan, Superintendent.*

Jesse M. Jones, Animal HusbandmanL. W. Summers, Assistant. L. W. Shook, Assistant.
S. S. Jerdan,

J.
S.

B. Hobdy, Assistant.*
I. Bechdel,

Assistant.*

Assistant.*

Mrs. Birdie I. Robinson, Assistant.* *In cooperation with United States Department of Agriculture.

A. R. Gissendanner, Assistant. J. M. Johnson, Assistant.

LOCAL FERTILIZER EXPERIMENTS WITH COTTON IN SOUTH ALABAMA IN 1912
BY

J.

F. DUGGAR, J. T. WILLIAMSON, L. J. HAWLEY

SUMMARY. Bulletin No 169 records the results of fertilizer experiments with cotton conducted by the Alabama Experiment Station in the counties of the southern half of Alabama in 1912. Extremely wet weather and other unfavorable conditions made some of these experiments inconclusive. The following summary is based on only the twenty-one conclusive experiments. In two experiments on prairie (lime) upland soil, kainit was highly effective, while cotton seed meal and acid phosphate were also important. In two experiments made on comparatively fresh sandy land (second and fifth years since clearing), acid phosphate was the fertilizer constituent that was most profitable. Inone experiment on red rocky soil in Greene county, no potash was needed, but both phosphate and cotton seed meal profitably increased the yield. In one experiment on non-calcareous reddish soil near Greensboro, and in one test on sandy loam near Tallassee, nitrogen was the only fertilizer constituent that notably increased the yield. In 14 other conclusive experiments located south of Montgomery, all on old grayish sandy soils of the Coastal Plain Region, kainit was needed as one constituent of the fertilizer in 93 per cent of the tests; kainit and acid phosphate were about equally effective in 50 per cent of these tests; and kainit was more important than acid phosphate in 43 per cent of these tests; nitrogen was highly effective as one constituent of the fertilizer in 79 per cent of these experiments on old sandy land. The following table shows the average increase in seed cotton per acre and the average profit, when all of these 21 conclusive experiments are averaged:

Average o W

KIND OF FERTILIZER

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

per acre.

1

2 3 4 5

7 8

9
1011

Lbs. 200 240 000 200 200 240 200 200 000 240 200 200
240

C. S. Meal Acid Phosphate No fertilizer---_-__ Kainit---C. S. Meal______2 Acid Phosphate C. S. Meal Kainit_-_ No fertilizer -Acid Phosphate Kainit C. S. Meal
Acid Phosphate
-

122

$1.86

-- -

---------- --- --- --- -- -117 3.27

73

1.26

9_ 296 - - - - -228 372 345
- -

. 7.20 6.04 8.80 8.44
- - -- -- -- -_
_

-

--------

200 200 240 100 000 240

100

100

Kainit C. S. Meal -_-_.-Acid Phosphate Kainit________.__ N o fertilizer-Acid Phosphate Kainit Nitrate of Soda(late)j

3418.74

This table shows that as a rule the complete fertilizers (Plots 9, 10 and 12) were more profitable than fertilizers applied singly or in pairs. The complete fertilizers were also the most profitable applications in 1911 in South Alabama. In the general average it was. more effective and more profitable in 1912 to apply 200 pounds of kainit in a complete fertilizer

The pounds of cotton seed meal applied
average of very slightly more

(Plot 9)

than to use only 100 pounds of kainit (Plot 10) .

---

the conclusive experiments shows that 200

applied after the plants were six inches high.

effective

before planting was

in 1912

than 100 pounds of nitrate of, soda

Introductory
The chief object of these local fertilizer experiments or soil tests has been to ascertain the best combination of fertilizer or 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 by funds provided by the Legislature of Alabama in February, 1911.

This bulletin deals only with fertilizer experiments carried to a conclusion in 1912 in the southern half of the state. For convenience the counties grouped together in this bulletin are those lying south of or within the C htral 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. 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 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. WEATHER CONDITIONS The season of 1912 was especially unfavorable for conducting fertilizer experiments. This was an exceedingly wet year, especially in spring and summer. This resulted in difficulty in selecting farms and farmers for the experiments, in delaying the time of planting many of the teats, in preventing in some cases proper cultivation, in reducing the stand, and in making the results less clear than they would have been in a year of normal rainfall. The average rainfall in the part of Alabama covered by these experiments is given below by months, according to data furnished by the Alabama Weather Service. The total was 70.25 inches.
Jan.
_..

Inches . 6.70

April.
May_ June .

Feb. _... 5.13 Mar. .... 9.71

Inches 11.77 3.52
.. 5.05

July .
Aug. Sept.

Inches .. 4.98
__5.66 5.44

Oct.
Nov. Dec.

_

Inches 3.11
2.41 6.77

Doubtless, the heavy rains resulted in the leaching and wasting 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. "What fertilizer does my soil need" is a question which can only be answered 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. Neither will chemical analysis of the soil indicate what fertilizers are needed. This bulletin does not contain the results of all Other fertilizer tests in the fertilizer experiments made in South Alabama in South Ala. 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. In 1912 killing frost occurred early, that is on October 27 and November' 2. 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. LOCATION OF EXPERIMENTS. The following list gives the name and address of each experimenter who has reported the results of fertilizer experiments made

in 1912 in the part of the State indicated, together with the page of this bulletin where the results may he found. a17 15 NAME COUNTY POST OFFICE Page W . A. Davis- ---.-Autauga lyo -

-Prattville
_Perote

Barbour Bulloc Butler Clarke Clarke Clarke Coffee Coffee Conecuh Crenshaw Dale Dallas Dallas Escambia Geneva Geneva Greene Greene Hale Hale Henry

-

-

-

-D. C.

Nix

-------_.

McKenzie

---

FE. Brooks_A. _J. C. Arant-.-T.

-39-)42)

39-42

- -

-Groe

Bashi - - - - Hill

M.

Pugh

------

-39-42"

-Thornasville_Elba__

VWinters Calhoun _--R. L. Hearon --_J. S. Windham

J.

-35-36-

36-

-Evergreen
Luverne
_

-Enterprise---

_D. --

-G. Harper_--M.
_F.

H.

McGee-------

L. Haw~kins W.

-----

_Cahaba Selma____ -Tallassee_.
-Canoe

-C.Moses_---_A.
-G.

J.

-----Kirkpatrick R.

Byrd

39-41 31 30-31 _22-23 23-24 _24-26-38-41

-Hartford-- -Hartford

--- --

_Mitchell Pittman__--__F. J. German -Geneva Uo. High School
E. Grantham---W.

._Clinton _
_Knoxx

-Greensboro
ille--

-- T.
P.

WV.

Morgan----

H. Chambers-

A. Tutwiler, Jr.

-Prairieville
-Headland
_

nyHouston-Dothan

---_ _

Lowndes Lowndes Macon_ Macon_ Macon___ Macon____ Macon___ Mon roe ____
Monroe

_Letohatchie

--

Lowndesboro--

--

Pike-

Russell
tr

_Ft. Davis Notasulga __ -Tuskegee ___ .Tuskegee _Tuskegee ___ .Jones Mill___ __Monroeville-___ -Troy - - - - ..

-_ _ -C. F. Wilkerson- --J. WV. Tharp------J. B. Mitchell, Jr. C. E. Reese - -- -F. M. Davis - -_--B.H. May --- --- -.-T. F. Proctor
-C.

J. H.Collins-

_ 40 18-19 _39-41 26 28-29. _15-16 _ 14_20-21 _ 11 37-38
40-42

40 38-41 21
_39-42~

W.

Thompson---

W.W. .A.
_J.

Seale

-----

H.

Sum ter Washington Wilcox __
Wilcox

-Geiger-- - - Geiger__ - - . St. Stephens

P.GPotrE.
A.J

Thompson L. Harrison R. Carter-W. Ballard----

----

40 40 _39-42 38-41 32-33 _39-42

A. Gilbert an-----

_27-28
_12-14 10-11 33-34 38-41. _ 40
-38-41

V__ Pruitt . C.

Wilcox---_.

--

_Allenton

.Sunny

-Camden----

South___

-G.

_G.

E.

B. Carter M. Cook-

------ -- -

M. Carmichael-_-

Additional experiments were started able for publication:

in

the following-counties Dale, Henry,,

of South Alabama but for various reasons the results were not availButler, Choctaw, Covington,

Marengo, Pike. and Washington.

The directions sent to each experimenter stated that the land emrployed for this test should be level and uniform, not manured in xrecent 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 ap;plied 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 ...-. ___$30.00 Kainit _____ . . Per Ton $14.00 $14.00

Prices naturally vary in different localities. Any one can substi,tute the cost of fertilizers in his locality for the prices given above. In each experiment three plots were left unfertilized, these being plots 3, 7, and 11. ' 'hen these yields differed widely 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 8 to 10 inclusive.*
PRICE ASSUMED FOR SEED COTTON

The price assumed is $18.00 per ton for seed, and 12 cents per pound for lint. This is equal to 4.6 cents per pound for seed cotton turning out 331 per cent of lint. Deducting % cents per pound as the average cost of picking and ginning, and we have deft 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 Station Bulletins 160 or 162.

9

Pounds per acre of fertilizers; nitrogen, phosphoric acid, and potash used and composition of each mixture.
ERTI LIZERS MIXTURE CONTAINS
COST OF

~ ~- ~ ~~
IT/ -~M

II~

~~~ ~~~~I
Y

IFERTILIZERS

o0

CS.

z
0
1

6
0

KIND OF FERTILIZER

0 aO
zE

Q -1
CS 01 1

0

as

\

1

1 2 4

200 240 200

Cotton seed meal 100 lbs. c. s. smea/*_ Acid phosphate-----

In

----

In

100 lbs. acid phoes.

Lbs. Lbs. Lbs. 13.58 5.76 54 $30.00 $3.00 6.79 2.88 1.77 38.40 - - -14.00 1.68 16.00

24.60

L14.00

In 10(0 lbs. Kainit---

8{

9)

10

12

200 Cotton seed meal 13.58 240 phosphate---In 100 lbs. above nixt.- 3.09 200 Cotton seed meai--13.58 200 Kainit-- - - -}-In 100 lbs. abovie nixt.- 3.39 240 iAcid phosphate 200 Kainit -- - - - - - In 100 lbs. above ;nzxt,200 Cotton seed meal --phosphate240 13.58 200 K ainit -- - - In 100 lbs. above mixt.2.12 200 Cotton seed meal 240 phosphate-___---13.58 10 K ainit- - - - - - - In 100 lbs. above mixt.2.59 240 Acid phosphate --100 Kiainit- - - - - - - - 14.00 100 Nitrate of soda In 160 lbs. above mixt. 3.18

Acid

---

12.305 44.16 10.04 3.4 21.27 .80

1.40 4.68 4.40 3.08

}_-_
S--

5.76 28.14 1.44 7.03 8.73 44.16 28.14)

L22.00
13.99

Acid

19.00 4.39 6.90) 44.16n15 84 8.18 2.93 16.00 12.30 22.17 8.73 2.80J

6.08

Acid

---

I20.13

5.38

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 ammonia than to the term nitrogen, can change the figures for nitrogen into their ammonia equivalents by multiplying by 1T' .

10 SUMTER COUNTY, 3 MILES NORTHWEST OF GEIGER
A. J. PAYNE. Dark prairie soil- (Houston clay) This is upland prairie. There was no damage from insects. The stand was good. The land is subject to rust, but no report on this disease was made in 1912. Planting was done on May 18th. Plainly, kainit was the most effective and profitable fertilizer. The plot receiving 200 pounds of kainit alone, per acre, made a profit of $15.00 per acre. Every fertilizer in which this amount of kainit was used proved profitable. One hundred pounds of
kainit was not as effective as twice thatamount. The average increase due to cotton seed meal was 72 pounds per acre; to acid phosphate, 52 pounds per acre; and to kainit, 218 pounds per acre. In this year of continuous heavy rains, cotton seed meal was more effective than nitrate of soda. Increase To To To To of seed cotton per acre when cotton seed meal was added: unfertilized plot___ . . . . acid phosphate plot _ kainit plot ___--68 acid phosphate and kainit plot _ 72 lbs. 212 lbs. lbs. 70 l]bs. 72 lbs.

Average increase 'with cottoll seed meal_

Increase of seed cotton per acre when acid phosphate was added: 104 lbs. To unfertilized plot 244 lbs. To cotton seed meal plot 140 lbs. --To kainit plot_ -- 2 lbs. To cotton seed meal and kainit plot Average increase with acid phosphate 52 lbs.

Increase of seed cotton per acre when kainit was added: 410 lbs. To unfertilized plot -To cotton seed meal plot-- - - - - - - -- ----- -- 270 lbs. 166 lbs. To acid phosphate plot --. 24 lbs. To cotton seed meal and acid phosphate plot _ Average increase 'with kainit . .. . ... . 218 lbs.

11

Experiments in Sumter and Hale Counties (PrairieLands).
GEIGER PRAIRIEVILLE

N

°

KIND OF

o

?, U

FERTILIZER

coa_4N,
Lbs. 312 344
240
.

o

S
0i >
G___

O____s-,

U

i

1 2 3 4 5S
6S
7

200 240 000 200 200 240 200 200 000 240 200 200 240 200 200 240
1 00

C. S Meal _ Acid Phosphate No fertilizer Kainit-------_ _ C. S. Meal ____ Acid Phosphate C. S. Kainit_____ No fertilizer--

Lbs. 72 104 410 316 342

$0.12 2.48
15.00

Lbs. 904 968
792

Lbs. 112 176
178

$1.48 5.36
5.72

688 632 696
392

928

7.96
9.28

864
808

156
142

1.56
1.28

Meal._____

-624
270 340
274

8

10 11
12-

Acid.Phosphate Kainit______C. S. Meal_____ Acid Phosphate Kainit-_____-__ C. S. Meal----Acid Phosphate
Kainit__----___-)

664 736
672

7.72 7.52
5.58

888 960
888

270 348
282

7.72 7.84
5.90

000 240
100

No fertilizer---___ Acid Phosphate
Kainit-

400
576
17 2.

600 16 21

100

Nitrate of Soda

--

8332

2

4

22

44

HALE COUNTY, ONE AND
NORTHEAST OF GALLION

ONE-FOURTH

MILES

NEAR

PRAIRIEVJLLE

J. H, COLLINS.
Black prairie upland This land has been in cotton for the last eight years, and in cultivation for at least fifty years. The stand appeared to be uniform, and rust was not especially injurious. Every fertilizer and every combination resulted- in a profitable
increase in the yield. The greatest profit was on a complete fertilizer consisting per acre of:

ing

Plot 9,

receiv-

200 pounds cotton seed meal, 240 pounds acid phosphate, and 200 pounds kainit.

12

,per

This mixture afforded a profit of $7.84 per acre, which is 127 Two hundred pounds of cent profit on the cost of fertilizer. kainit was more profitable than one hundred pounds. Probably in a season with average weather conditions, cotton -seed meal and nitrate of soda would have afforded much larger increases than in this extremely wet year. Increase of seed cotton per acre when cotton seed meal was added: 112 lbs. To unfertilized plot___ lbs. _.-20 __ To acid phosphate plot . ----.. lbs. 36 To kainit plot_-78 lbs. To acid phosphate and kainit plot Average increase 'with cotton seed meal_ Increase of seed cotton per acre when acid phosphate was added: . ... . . To unfertilizsd plot _. . ... To cotton seed meal plot. To kainit plot _____92 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_ ___-30 To acid phosphate plot_ ___ -94 To cotton seed meal and acid phosphate plot_ Average increase
'with

34 lbs. 176 lbs. 44 lbs. lbs. 206 lbs. 130 lbs. 178 lbs. lbs. lbs. 192 lbs. 124 lbs. 192 lbs. lbs. 78 lbs. 28 lbs. 50 lbs.

kainit

Increase from use of different quantities of kainit: To use of 200 pounds kainit -126 To use of 100 pounds kainit Increase from use of cotton seed meal Increase from use of nitrate of soda Cotton seed meal better than nitrate by

SUMTER COUNTY, 112 MILES SOUTH OF GEIGER
E. A. GILBERT

SLight colored, stiff, branch bottom, with red clay subsoil. This field is not a lime soil, although only a mile or two outside of the prairie belt. The land has been long in cultivation. This is the second year in which the same fertilizer experiment

ject

with cotton has been made on the same land. This land is subto cotton wilt and.to cotton rust. Both did some damage, es pecially on Plots Nos. 1 to 5. The stand was uniform and good.

13 The large increase due to kainit, whether applied alone or in any combination, is very noticeable; the increase with potash being several times greater than that with either cotton seed meal or phosphate. The average increase in pounds of seed cotton per acre was 72 pounds per acre from cotton seed meal; 132 pounds from acid phosphate; and 400 pounds from kainit. However, every fertilizer was needed, as shown by the fact that the largest profits were obtained on Plots No. 9 and No. 12,. which received the complete fertilizers. The largest profit, $18.56 per acre, or 305 per cent on the investment in fertilizers, resulted from the use of a complete fertilizer of cotton seed meal, acid phosphate, and 200 pounds of kainit per acre (Plot 9). A profit of $18.48 per acre resulted on Plot 12, from the use of a complete fertilizer containing nitrate of soda. Reducing the amount of kainit from 200 pounds to 100 pounds. per acre materially reduced the yield. Nitrate of soda was a little more effective than cotton seed meal. Mr. Gilbert's results in 1912 closely agree with those obtained by him in 1911. In 1911 his average increase with cotton seed meal was 133 pounds of seed cotton per acre; with acid phosphate, 156 pounds; and with kainit, 274 pounds. The results of the two years differ chiefly in the greater effect of kainit in 1912, and in cotton seed meal proving more effective than in 1911.
Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot -To acid phosphate plot_ ..... To kainit plot To acid phosphate and kainit plot Average increase 'ith 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 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 'vith kainit 48 lbs. 128 lbs. 72 lbs. 136 lbs. 72 lbs. -8 lbs. 168 lbs. 152 lbs 216 lbs. 132 lbs. 328 448 488 496 lbs. lbs. lbs. lbs.

-

440 lbs.

14
Increase from use of different quantities of kainit: To use of 200 pounds kainit_ ____ To\ user of 100pn d kailr/l-r1nit~
Increase

Nitrate

496 384 from use of nitrate of soda --------------- 216 of soda surpassed cotton seed meal by -________ 80

lbs. lbs. lbs. lbs.

Experiments in Sumter and Greene Counties.
GEIGER KNOXVILLE

0
N a

o

Q

o

FERTILIZER
c
c4j

KIND OF

S
P ~Cc5*Z~a

0

oW
4-J

Z

;

~'
Lbs.
808

N

1 2 3
4
5

200 240 000 200
200

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

240
,6

Acid Phos.

Meal-----

Lbs. 296 352 344 688
496 792

Lbs.
-48-$4.92

Lbs.
-56-$5.24

-8-2.006672-192

-9.36 864 896 952 36 96 0.04 -0.84

328
120

11.72 0.12

200

C. S. Meal-----

400

7 8 9

)

200 000 240 200 200 240
200

Kainit72 No fertilizer Acid Phosphate Kainit C. S. Meal--- _ Acid Phosphate
Kainit----C. S. Meal---

0
__ 408-848

16 16.12 18.56 14.78

9 1048 1056 1000
69

00 238 284 266

. 6.44 5.28 5.26

888 S__-_-__ 480 1024 912
_ 40

616 504

10
11

200
1000

240
000

Acid Phosphate
Kainit-__--_____

No fertilizer-

-

------584 18.48-

----- 4 2.

240 12
.100

100

Acid Phosphate Kain it _992 Nitrate of Soda-54

992

1.813

4

27

GREENE COUNTY, 16 MILES NORTHEAST OF EUTAW

".. H.

CHAMBERS.

Grey sandy loam wit/i1 eddisis subsoil

ing been in cotton the

This land has been cleared seven years. three years prior

It is reported to 1912.

as

hav-

In this test, unlike all others, the fertilizer was not applied until June, on account of the loss of the first lot of fertilizers in transit. It was applied as a side application when plants were small.

15 Under these unfavorable conditions, kainit was the only fertilizer giving somewhat uniformly profitable results. However, acid phosphate and cotton seed meal were also helpful, especially in the complete fertilizers. Nitrate of soda was much more effective than a June application of cotton seed meal.
Increase To To To To of seed cotton per acre when cotton seed meal was added: unfertilized plot -56 lbs. acid phosphate plot__________________ 288 lbs. kainit plot__6____________ _.._4 lbs. acid phosphate and kainit plot_ 46 lbs.

--

--

A'verags increase cuith coten

seednial

86 lbs.

Increase of seed cotton per acre when acid phosphate was To unfertilized plot To cotton seed meal plot________________ To kainit'plot-- --- --- ----- ---To cotton seed meal and kainit plot
Average

added:
202 lbs.

192l._________________ 152 lbs. 184 lbs.
87 lbs.

increase with

acid

phosphate

Increase To To To To

of seed cotton per acre when kainit was added: unfertilized plot-- - - - - -- - cotton seed meal plot acid phosphate plot________._____30 cotton seed meal and acid phosphate plot
with

-- - -

36 lbs. 156 lbs.

lbs. 188 lbs
203 lbs.

Average increase

kainit--

- - --

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

- ---------- --188

lbs.

Increase from use of

To use of 100 pounds kainit----------------

170 lbs.

nitrate of soda------------Nitrate of soda surpassed cotton seed mieal by---------

220 lbs. 174 "lbs.

GREENE COUNTY, CLINTON 15 MILES NORTH OF EUTAW W. W. MORGAN Red sandy

and rocky land, with sandy clay subsoil

This test was made on old land which has been in cultivation -about 75 years, and the original growth was oak and short leaf pine, insects did no material damage to this crop, and rust was not noticeable. All fertilizers afforded a profit. The largest profit, $12.92 per acre, or 255 per cent on the investment in fertilizers.

16
was afforded by Plot 5, fertilized by cotton seed meal and acid phosphate. The next largest profit per acre, $11.18, was on Plot 10, which received a complete fertilizer, containing only a half ration of kainit. Nitrogen was somewhat more effective than phosphate, but the latter was also essential to fair yields. Potash was apparently not needed. The average increase in pounds of seed cotton per acre due to cotton seed meal was 215 pounds; to acid phosphate, 180 pounds; and to kainit, 12 pounds. Cotton seed meal in this test was superior to nitrate of soda.

Experiment in Greene County.
CLINTON

N

0

d

_
1 2 3 4 5 6 7 8 9 10
11

KIND OF FERTILIZER

°

9
Lbs. 480 528 296 304 752 656 328 560
5028.

o o,

200 240 000 200 200 240 20 200 000 240 200 200 240 200 200 240 100

C. S. Meal Acid Phosphate No fertilizer _______ Kainit __ C.S. Meal Acid Phosphate C. S. Meal Kainit . . . . .. ____45 No fertilizer ... .. Acid PhosphateKainit C. S. Meal Acid Phosphate Kainit pt73 C. S. Meal Acid Phosphate Kainit

Lbs. 184 232 000 440 336 218 348 414

$4.36 7.60 -1.40 12.92 9.04 5.64 7.84 11.18

-

-

704 784
384--

12

S

000 240

No fertilizer Acid Phosphate

....

-

100 100

Kainit. .... Nitrate of Soda-

608

224

4.08

Increase To To To To

of seed cotton per acre when cotton seed meal was added: unfertilized plot__ acid phosphate plot_ kainit plot ..acid phosphate and kainit plot -

184 lbs. 208 lbs.
336 lbs.

130 lbs. 215 lbs.

A erage increase -with cotton seed meal

17
Increase To To To To of seed cotton per acre when acid phosphate was - - -- - -- - - -unfertilized plot-cotton seed meal plot - - kainit plot- - - - - - - - - - cotton seed meal and kainit plot

added:
232 256 218 12 lbs. lbs. lbs. lbs.

acid phosphate Aiierage increase 'with Increase of seed cotton per acre when kainit was added: To unfertilized plot_____________________ ---To cotton seed meal plotTo acid phosphate plot ------To cotton seed meal and acid phosphate plot
Average

180 lbs.

0 lbs.

-

152 lbs.

-----

14 lbs.

-92 lbs.
12 lbs.

increase 'wit/h kainit

AUTAUGA COUNTY, 21 MILES WEST OF PRATTVILLE
V. A.
DAVIS.

Grey sandy loam with yellow clay subsoil Cotton grew on this land in 1909-10-11. This land is subject to rust. Plot 2 was damaged more than any other plot by it, and and uniPlot 12 was damaged least. The stand was fairly form. in yield. The complete fertilizer afforded the largest The most profitable plot was No. 12, fertilized with 100 pounds nitrate of soda, 240 pounds acid phosphate, and 100 pounds kainit. This afforded a profit of $12.72 per acre, or 261 per cent on the Plot 9, receiving a complete fertilizer investment in fertilizers. containing cotton seed meal, was second in profit, with $11.52 per acre. The average increase in pounds of seed cotton per acre was, for cotton seed meal, 258 pounds; for acid phosphate, 120 pounds; and for kainit, 102 pounds.

good

increase

Increase of seed cotton per acre when cotton seed meal was added:
T o unfertilized plot__
_ _ _ _ _ __--

--- 200. lbs. --------- -----384 lbs. 224 lbs. 224 lbs. 258 lbs.

To acid phosphate plot.--To kainit plot__ _____ To acid phosphate and kainit plot_ Average increase 'with cot/on seed meal__-_-___-__--____-__1-

18
Increase of seed cotton per acre when acid phosphate was added:
To unfertilized plot

To cotton seed meal

To kainit plot- - -

plot - - -

-___-------_-.___

- - - - - - - - --

To cotton seed meal and kainit

plot

- -- - - _-._

--_

----

168 lbs. 176 lbs. 176 lbs. 120 lbs.
40 lbs.

-16

lbs.

Average increase withi acid phosphate____________ Increase To To To To Increase To To Increase of seed cotton per acre when kainit was added: unfertilized plot-- - _ _ _ _ _ _ _ _ cotton seed meal plot--acid phosphate plot________ _____ cotton seed meal and acid phosphate plot

A'verage increase with kainit-

p,

64 lbs. 232 lbs. __ 72 lbs. 102 lbs. 72 lbs. 16 lbs. 224 lbs. 280 lbs. 56 lbs.

from use of different quantities of kainit:

Increase from use of
a

use of 200 pounds kainit (Plot 9)__-______ use of 100 pounds kainit from use of cotton seed meal (Plot
nitrate of soda

9)

Nitrate better than meal b

Experiments in A utauga and Elmore Counties.
unskani Plt )___ _4 o

PRATTVILLE

TALLASSEE

0 N U U U
5

0

o

a

KIND OF FERTILIZER

oc5

o

0 o

0 4-

1 2 3 4
5

200 240 000 200
200

C. S. MealAcid Phosphate No fertilizer-___624 Kainit

Lbs. 528 312 368
66

Lbs. 200 -16 40
38

$5.00 -2. 32 0.20
1.4

Lbs. 728 616 584
74

Lbs. 104 -8 -6
28

$1.16 -2.00 -1.64
44

240
6

)200

200

Meal---, Acid Phosphate C. S. Meal--Kainit_
C. S.

66
592

38
264

1.4
6.16

74

28

44

752

230

4.80

7 8 9

(

000 240 200 200 240
200

No fertilizer-- - -_ _ _ _ _ _ Acid phosphate_ 544 216 Kainit_____ C. S. Meal___ 768 440 Acid Phosphate
Kainit-C. S. Meal---

_ _ _ 556 11.52 9.98

488 552 716 736
536

_ _ 52 -1.00 204 212
____-

10
11

200
240

---

2.08 3.10

100
-

Acid Phosphate

Kainit__

J

712
328

384

000

12

240

__ No fertilizerAcid Phosphate

--

100 100

Kainit___ Nitrate of Soda_

768

440

12.72

848

312

7.60

19 ELMORE COUNTY, 4 MILES WEST OF TALLASSEE
MITCHEL PITTMAN. Yellowish soil with red clay subsoil Cotton grew on this land in 1911, and oats followed by cowpeas in 1909 and 1910. The stand was uniform on all plots. The experimenter reports that neither insects nor diseases were injurious. The average increase of seed cotton per acre due to cotton seed meal was 182 pounds; to acid phosphate, 37 pounds; and to kainit, 39 pounds. Evidently nitrogen was the most needed constituent of a fertilizer. The largest profit from fertilizer was where a complete fertilizer containing nitrate of soda was used (Plot 12). This gave a profit of $7.60, or 156 per cent on the investment in fertilizers. Cotton seed meal, when combined with either acid phosphate or kainit, gave fair profits. Nitrate of soda afforded a larger yield than did cotton seed meal.
Increase To To To To of seed cotton per acre when cotton seed meal was added: unfertilized plot acid phosphate plot kainit plot_ .. -_- . . . . acid phosphate and kainit plot _. 104 236 236 152 lbs. lbs. lbs. lbs.

Average increase with cotton seed meal_

182 lbs.

Increase of seed cotton per acre when acid phosphate was added: -8 To unfertilized plot 124 To cotton seed meal plot T o kainit plot . . . . . . . . . .- . . . . . 58 -26 To cotton seed meal and kainit plot Average increase ,withacid phosphate Increase of seed cotton per acre when kainit was added: T o unfertilized plot . . . . . . . . . .. . .. . . . . . . . . To cotton seed meal plotTo acid phosphate plot 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 soda Nitrate surpassed cotton seed meal by

lbs. lbs. lbs. lbs.

37 lbs.

-

lbs. 126 lbs. 60 lbs. -24 lbs.
-6

39 lbs. 152 lbs. 252 lbs. 100 lbs.

-

20 HALE COUNTY, 112 MILES SOUTHEAST OF GREENSBORO
P. A. TUTWILER,
JR. Grey sandy soil with red clay subsoil This land has been in cotton the last three years. There was no damage from rust or insect injuries. The stand was fairly uniform on all plots.

The most profitable application was a complete fertilizer containing nitrate of soda (Plot 12). This gave a profit of $12.24, or 251 per cent on the investment in fertilizers. Nitrogen was more effective than either phosphate or potash. Cottonseed meal gave a satisfactory profit even when applied alone, and a much larger profit when used in combination (Plot 10) with both phosphate and 100 pounds of kainit per acre. The average increase in seed cotton per acre was 214 pounds for cotton seed meal; 44 pounds for acid phosphate; and 72 pounds for kainit.
Increase of seed cottoi per acre when cotton seed meal was added: To unfertilized plot To acid phosphate plot_ To kainit plot___ To acid phosphate and kainit plot Anverage increase with cotton seed meal Increase To To To To of seed cotton per acre when acid phosphate was added: unfertilized plot _ -cotton seed meal plot -120 kainit plot _--cotton seed meal and kainit plot -. 112 296 248 200 lbs. lbs. lbs. lbs.

214 lbs. -64 lbs. lbs. 84 lbs. 36 lbs. 44 lbs. -12 lbs. 124 lbs.
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 -136 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_ -

-

40 lbs.
72 lbs.

-

40 lbs. 96 lbs. 300 lbs. 100 lbs.

Increase from use of nitrate of soda_ Nitrate better than cotton seed meal by

a

21
Experiments in Hale and Macon Counties (Sandy Lands)
GREENSBORO FT. DAVIS
4C)
OO

0

I

0 0
1 1

4-0

KIND OF FERTILIZER

Q)Ci

8
N

0)C

0

4-1

c

0d 0

1

1 2 3 4

7

10 11 12;

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

C. S. Meal Acid Phosphate No fertilizer Kainit
C. S.

Acid

Meal---

Lbs. 800 624 688 688 944 960 736 832 1056 1136 832 1360

I

Lbs. 112
-A

-4.24

$1.48

Lbs. 672
752

Lbs. 80
160

$0.20 4.72 2.36 6.04 6.89 8.40 6.64 7.62

Phosphate

---- ----12 -1.88 232 4.60 236 5.04

5 92 664 816 808 5 04 808 856 880 572

--94 268 432 --287 318 325

C. S. Meal___ Kainit__ _ _ _ No fertil zer__ Acid Phosphate Kainit__ _ _ _

---- --- -72 -0.20i 272 328 4.80 7.74

Acid
C.

C. S. Meal--Phosphate

Kainit--

- - -

Acid

S.

Meal--Phosphate

Kainit__ _ _ No fertilizer_ Acid Phosphate Kainit _ Nitrate of Soda_

428

12.24

912

340

8.72

\ I

I

MACON COUNTY, ONE-HALF MILE SOUTHWEST OF FT. DAVIS

F.

M. D A V IS

Grey soil with ye/low subsoil

This experiment was located on sandy bottom land which has
It is subject to wilt, which did been cleared 50 years or more. considerable damage. There was some damage by rust, especially o~n Plots 1, 3, 7 and 11. The damage to all plots appears to be uniform.

There was a slight to moderate profit

from

the use of every fer-

tilizer or fertilizer combination. The average increase due to cottonseed meal was 77 pounds of seed cotton per acre; to acid phosphate, 169 pounds; and to 1kainit, 118 pounds.

22 Mr. Davis writes that there was less rust where kainit was used; also, less injury, he thinks, from wilt.
Increase of seed cotton per acre when cotton seed meal was added:

To unfertilized plot --

To acid phosphate plot--- - --To kainit plot To acid phosphate and kainit plot-31l.__ Average increase -with cotton seed meal

---

-------

-- -

80 lbs. 8 lbs.

188 lbs. 77 lbs.

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

-- -To cotton seed meal plotTo kainit plot____________---To cotton seed meal and kainit plot Azverage increase 'wit/i acid phosphate_____

---

--

160 lbs.
288 lbs. 193 lbs.

36 lbs. 169 lbs.

lncrease 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 'wit/i kainit1b_______-1

added:
94 lbs.__
202 lbs.

127 lbs. 50 lbs. s.

CONECUH COUNTY, 9 MILES EAST OF EVERGREEN, NEAR HERBERT G. M. HARPER
Grey sandy soil wit/ i-edsubsoil This land has heen in cultivation 42 years. It is subject to cotton wilt, but was not seriously attacked this year. The stand Rust occurred, but it was about 12 per cent deficient ons Plot 12. was least injurious on the plots where kainit was used. On this soil every fertilizer, when used alone or in combination was profitable, but the best results were from the use of a complete fertilizer (Plot 9) containing cotton seed meal, acid phosphate, and 200 pounds of kainit per acre. Thisz mixture afforded a profit of' $15.36 per acre, or 252 per cent on the investment in fertilizer. The average increase attributable to cotton seed meal was 241 pounds of seed cotton per acre; to acid phosphate, 151 pounds;: and to kainit, 171 pounds. Reducing the amount of kainit from 200 to 100 pounds reduced the yield and the profits.
Increase of seed cotton per acre when cottoii seed local was
To unfertilized

added:

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

-

432 lbs._

To acid phosphate plot________

128 lbs.

To kainit plotTo acid phosphate and kainit
Average

increase -wit/i cotton seed

plotmeal

248 lbs.
156 lbs. 241 lbs._

23
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
A'verage increase
-wit/i

144 lbs.

160 lbs.
196 lbs. 104 lbs.
lbs.

acid phosphate

-

--

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

184 lbs. 000 lbs.

plot--

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

To acid phosphate plot-- - - - - - - - - - - - - - - - To cotton seed meal and acid phosphate plot--------------Av'erage increase'-wit/h kainit--

236 lbs. 264 lbs.
171 lbs.

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

Increase from use of different quantities of kainit:
To use of 200 pounds kainit---------------264 lbs.

To use of 100 pounds kainit----------------

188 lbs.

Experiments in Conecub and Crenshaw Counties

24 CRENSHAW COUNTY, 1 MILE EAST OF LUVERNE
F. L. HAWKINS Grey sandy upland with red

clay subsoil

This experiment was made on the same plots where a similar test with inconclusive results was made in 1911. in 1912 no fertilizer and no combination was highly profitable. Cotton seed meal was more effective than either kainit or-acid phosphate. The largest profit, $3.76, or 88 per cent on the investment in fertilizers, was made on Plot 12, where a complete fertilizer containing nitrate of soda was used. The stand was uniform. Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot-- - - - - - - - - - - -- To acid phosphate plotTo kainit plotplot To acid phosphate and kainit
Average increase with cotton seed meal
56 lbs. 100 lbs.

108 lbs.
102 lbs,

92 lbs. 48 lbs. lbs. -20 lbs. 26 lbs.
24 lbs.

Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot-_________-_ To cotton seed meal plot_____________2 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:
T o unfertilized To acid To cotton seed meal

plot-- - - - --- - - - ---- - - - - - 34 lbs. plot --- - - - - - - - - - - - -- 86 lbs. phosphate plot - - - - - - - - - --- - -- -- lbs.

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

--------

-34

32 lbs.

14 lbs. 102 lbs.
220 lbs. 118 lbs.

Increase from use of cotton seed meal-________
Increase from use of nitrate of soda--------------Nitrate better than
weal

by

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

DALE COUNTY, 1 MILE SOUTH OF OZARK

J. W. BYRD Light grey sandy loam with reddish clay subsoil
This land has been cleared for 60 years and had been out of cultivation for 3 years prior to 1911. Rust was worse on Plot 5. The stand was uniform. Some cotton was beaten out and

lost.

25
The highest estimated increase in yield was 528 pounds of seed cotton per acre with a mixture of cotton seed meal and acid

phosphate

(Plot

5).

This

gave

a

profit

of

$16.44

per

The acre, or 377 per cent on the investment in fertilizers. next largest profit, $14.80 per acre, or 336 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 280 pounds with cotton seed meal; 148 pounds with acid phosphate; and 180 pounds with kainit. In a complete fertilizer, nitrate of soda was very slightly less effective than cotton seed meal; 100 pounds of kainit per acre was about as effective as 200 pounds. Mr. Byrd's results in 1912 differ from those in his test made in 1911 chiefly in that in 1911 kainit was somewhat more effective, making the complete fertilizer the most profitable mixture in that year. Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot __484 To acid phosphate plot To ka.nit plot- - - --......... To acid phosphate and kainit plot _78 Average increase -withli cotton seed meal Increa-e To To To To of seed cotton per acre when acid phosphate was added unfertilized plot_ _ cotton seed meal plot -kainit plot . .......... _ cotton seed meal and kainit plot_124 lbs lbs. 324 lbs. lbs. 280 lbs.

44 404 194 -52

lbs. lbs. lbs. lbs. lbs.

Average increase with acid phosphate __148 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

--

156 356 306 100

lbs. lbs. lbs. lbs.

with kainit

-

-

-

-

-

180 lbs.

26
Experiments in Dale and Geneva Counties.
OZARa
_______________ ___ ________

HARTFORD

(High School.)

N

0U

KIND OF

F

.a'
N

o
MERTIIZER
a)

z
1 2 3 4
,6

a,

a

V

200 240 000 200
200

C. S. Meal _ Acid Phosphate __ No fertilizer -_ Kainit----------Acid Phosphate
C. S. C. S. Meal___..

Lbs. 348 268
224

Lbs. 124 44
156

Lbs.
$1.96 272

Lbs.

364
;20

-296

0.08
4.84

544
360

-24 -$3.96 248 8.24
94 0 2.36

7
8S

(

10 11
12-

240 200 200 000 240 20() 200 240 200 20 240

5286

CS. Acid Phosphate Kainit.. _____ C. S. Meal-Acid Phosphate 100 Kainit 000 No fertilizer-----240 Acid Phosphate 100 )Kainit _ 100 Nitrate of Soda _

0

Kainit______--_ No fertilizer --Acid Phosphate Kainit

Meal-

656

480

14.80

460

254

5.76

[Meal---

5

160-176 520 350 -___

10.92

368

148

2.84

S 608 428 11.04 -4 604 414 11.18 J_______ 200
368 168 1.84

548 536 352
548

284 228

5.28 3.74

196

2.96

GENEVA COUNTY,

ONE-HALF

MILE

SOUTFH

OF HARTFORD
GENEVA COUNTY HIGH SCHOOL

(B. H. BOYD, Principal)
Grey

sandy upland with
All
stumps

stiffer subsoil The

ing
the

This

land had been in cultivation

only two years.
had been

precedOn

crop

being corn.

removed.

this soil, as is often the case on new ground, acid phosphate was
most important single fertilizer. However, the largest profit,

$12.12 per acre, was made on Plot 5, where a mixture of phosphate and cotton seed meal was applied. This is equal to a profit of 259 per cent on the cost of the fertilizer. The stand on Plots 7 and was slightly below the average.

8

27
Increase of seed cotton per acre when cotton seed meal was To unfertilized plot---------To 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 To cotton seed meal plot--- -To kainit plot -----------34-- - - - - -To cotton seed meal and kainit plot Average increase 'with acid phosphateIncrease of seed cotton per acre wshen kainit vas added: To unfertilized plot- - - - - - - - - -To cotton seed meal plot-------__ -To acid phosphate plot-100-lbs.___ To cotton seed meal and acid phosphate plot Average increase 'wit/h kainit -

added:
-24
lbs.-

172lbs._

160 lbs.136bs. 111 lbs.

248 lbs._
444 lbs._ lbs.

30 lbs.: 194 lbs..-

- -

94 lbs. 278

lbs.

b -1 136 lbs. 34 lbs...
104 lbs.-

Increase from use of nitrate of soda-Cotton seed meal better by-__--_--____ ___

32 lbs.

RUSSELL COUNTY,2 12 MILES NORTH FROM SEALE P. G.
PORTER Light sandy loam, wit/s red subsoil

The stand was uniform. The most profitable fertilizer was the: complete mixture on Plot 9, which afforded a profit of $5.28 peracre, or 87 per cent on the investment in fertilizers. Cotton seed
meal was more effective than either phosphate or kainit, but

all

three were needed.

cotton

The average increase in pounds of seed cotton per acre was, seed meal 141 pounds; for acid phosphate 49 pounds;
kainit 55 pounds.-

for

and-

for-

Cotton seed meal was slightly more effective than nitrate of soda..
Increase of seed cotton per acre when cotton seed meal was added:
To acid r phosphate T o u f iie l
t-

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

9

52 lbs._ b ...

T o kainit plot - - -- - - - - - - - - - - To acid phosphate and kainit plot
Aveageinceas wih ctto sed mal

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

- - --

---

148 lbs..
170 lbs.141 bs

28
Increase of seed cotton per acre when acid phosphate was

added:
--48 lbs. -92 lbs.

To To To To Increase To To To To

unfertilized plot----cotton seed meal plot kainit plot_______________ cotton seed meal and kainit plot

-

---

108 lbs.

130 lbs.
49 lbs.
6

Average increase witl acid phosphate of seed cotton per acre when kainit was added: unfertilized plot -----------cotton seed meal plot_________ acid phosphate plot---- -cottoo seed meal and acid phosphate plot

lbs.

- -

66 lbs.

184 lbs.
55 lbs.

Average increase 'wvit/s 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

---

184 lbs. 130 lbs.

170 lbs.
132 lbs.
38 lbs.

Experiments in Russell and Geneva Counties
SEALE
___________________________ ____(Grantham)

HARTFORD

O
N o0 0

0 0:
"

0

~

KIND OF
ss Ek

7
$
0

FERTILIZER

a.o
o

a, cl
O0

N

n

0

t
$4.68 0.24 __..
-1.16

o Lbs.
496 588

1

2 3
4

200 240

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

000
200

No fertilizer---_

-

Lbs.
528 384

Lbs.
192 48 6

Lbs.
16 108 248

$S2.362.64 8.52

336
352

480
736

5

S

200 240 6 200
6

200

C. S. Meal L- 456 Acid PhosphateS C. S. Meal52

100
15

-0.681
176

848
80

352
36

9.40 .4 .4 7.08 14.56 12.14

7

19210
200
200

000 240 200

Kainit_52
No fertilizer---Acid Phosphate Kainit_C. S.

15 114 284 230

176

80 512 748 992 896 440

36 254 516

376 480 640 576 336 528 28

____ 1.48 5.28 3.82

Acid Phosphate
Kainit-----

Meal--_

10 11 12

200
240 100 COO 240 100 100

C. S.Meal_

Acid Phosphate Kainit__-__ No fertilizer---_ Acid Phosphate Kainit_ _ Nitrate of Soda

-438

12 12

28 .0

1 92

7 47

40 1.0

29 GENEVA COUNTY, 4 MILES WEST OF HARTFORD
G. E. GRANTHAM Sandy loam, with red subsoil All three fertilizer constituents were needed on this soil, the complete fertilizer (Plots 9, 12, and 10) affording the largest yields. The largest profit $14.56 per acre, or 239 per cent on the investment in fertilizers was afforded by Plot 9. The average increase in pounds of seed cotton per acre attributable to cotton seed meal was 148 pounds; to acid phosphate 163 pounds; and to kainit 215 pounds. it was more profitable to employ 200 pounds rather than 100 pounds of kainit in the complete fertilizer. Nitrate of soda was slightly more effective than cotton seed meal.
Increase of seed cotton per acre when cotton seed meal was added:
To unfertilized plot
----

--------

To acid phosphate plot--------To kainit plot- - - - - To acid phosphate and kainit plot

16 lbs. 244 lbs.

-- -

-- - - - -

68 lbs.

262 lbs. 148 lbs. 108 lbs 336 lbs.
6 lbs.

Average increase -wi/h cotton seed meal

Increase of seed cotton pei acre when acid phosphate was added: To unfertilized plot-- - - - -- - - - --To cotton seed meal plot
T o kainit plot
-

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

To cotton seed meal and kainit plot -----------Axverage increaseocwit/i acid plhosplhate-----------Increase of seed cotton per acrs xwhen kainit was added:
To unfertilized plot__--

200 lbs. 163 lbs.

- - - - - - - - - - - - - - --- - 248 lbs.
300 lbs. 146 lbs. 164 lbs. 215 lbs. 164 lbs.
86 lbs. 262 lbs.

- - 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--------------Nitrate

better than meal by

296 lbs.
34 lbs.

30 COFFEE COUNTY, 4 MILES NORTH OF ENTERPRISE S D. H. MCGEE
Reddish upland with clay subsoil This experiment was made on land which had been pastured in 1911. The stand was somewhat thinned by grass worms. The largest profit, $15.52 per acre, or 237 per cent on the investment in fertilizers, was made on Plot 9, which received the full
amount of cotton seed meal, phosphate and kainit.

Each of these three fertilizers was highly profitable

in every

mixture; but phosphate and meal, when used separately, were not

very effective. The average increase of seed cotton per acre attributable to cotton seed meal was 195 pounds; to acid phosphate, 95 pounds; and to kainit, 241 pounds. Two hundred pounds of kainit was more profitable than one-half this amount. Nitrate of soda and cotton seed meal were about equally effective.
Increase of seed cotton per acre when cotton seed meal was added: To unfertilized plot _-- - - - - - - To acid phosphate plot ._. ._. ___ To kainit plot _.. To acid phosphate and kainit plot ___.258 A'verage increase with cotton seed me .l_ Increase of seed cotton per acre when acid phosphate was added: To unfertilized plot To cotton seed meal plot.. . . . . . . .. .. T o kainit plot -- -- -- - - -- - - -- - -----.4 To cotton seed meal and kainit plot...... ......
Average

152 lbs.
260 lbs.

108 lbs. lbs. 195 lbs. 56 lbs. 164 lbs. lbs. 154 lbs 95 lbs.

increase cuvith phosphate........ acid

...

Increase of seed cotton per acre when kainit was added: To unfertilized plot__- - - - 278 lbs. To cotton seed meal plot .. . . .. . ... . . .. . ... . . 234 lbs. To acid phosphate plot . . . . . . . 226 lbs. To cotton seed meal and acid phosphate plot 224 lbs. Anerage 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 nitrate of soda Nitrate of soda better than cotton seed meal by ...... _ 241 lbs. 224 lbs. 146 lbs. 260 lbs. 2 lbs.

31

Experiments in CQf/ee County.
ENTERPRISE ELBA

Z
o

14
c3),

O

I

O

"2

^cu

KIND

OF

Z
5

FERTILIZER

Qa ac /) a a p a
0

o

a ,
a

N

0
N

co n a) k
L. a oo

a a a
0

o

n-

1 2 3
-4

5

.6 7 8 4 7 9 10

200 240 000 200 200 240 200 2U0 000 240 200 200 240 200 240
100 000

C. S. Meal_______ Acid Phosphate No fertilizer Kainit C. S. Meal----Acid Phosphate

Lbs. 448 352
296_

Lbs. 152 56
_

$3.08 0.56
_

Lbs. 408 384
280 304
464

Lbs. 128 104
20
176

$2.12 2.48

592 648

278 316 386 282 540 462

9.72
7.96

-0.60
2.36

C. S. Meal_____ Kainit_ No fertilizerAcid Phosphate Kainit_________ C. S. Meal Acid Phosphate I Kainit --------C Acid Phosphate Kainit----No fertilizer.

736
368-

11.04 8.20 15.52
13.10

448
296

156 112 448
560

1.80 1.40 11.84
17.02

648 904
824
360

400 728
832

11
12-'

264-------

240 100 100.

Acid Phosphate KIainit_ . Nitrate of Soda

S

824

464

13.68

872

608

19.44

COFFEE COUNTY, ELBA

J. S. WINDHIAM
Sandy soil, wit~h yellowish, stiffer subsoil

This land had been long in cultivation. The complete fertilizers were the only ones shove ing a large profit, showing plainly that this soil needed a complete fertilizer. The average increase attributable to cotton seed meal was 168 pounds of seed cotton per acre; to acid phosphate, 341 pounds; and to kainit, 82 pounds.
Apparently

100 pounds kainit was preferable to 200 pounds. plot-- - ---- -- ---- - - - - --

Ni-

trate of soda was more effective than cotton seed meal.
Increase of seed cotton per acre when cotton seed meal w~as added:
To
unfertilized

To acid phosphate

To kainit plot -Average increase

plot -

--

_

128 lbs.
72 lbs. 136 lbs. -336 lbs. 168 lbs.

-

- mzeal

-

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

To acid phosphate and kainit plot

wthi cotton seed

-

32
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-Average increase with acid pliospate-Increase of seed cotton per acre when kainit was added: 'fo unfertilized plot____________________ To cotton seed meal plot--------To acid phosphate plot----------To cotton seed meal and acid phosphate plot Average
increase with

104 lbs,
48 lbs.

92 lbs.
292 lbs.

134 lbs.
20 lbs
-28lbs.

8 lbs.
272 lbs.
_-___.

kainit

82 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 of soda better than cotton seed weal by

272 lbs.
384 lbs.
336 lbs. --

384 lbs. 48 lbs.

MONROE COUNTY, 3 MILES WEST OF M ONROEVILLE J. R. CARTER
Grey sandy loam with red clay subsoil

This land has been in cultivation about 30 years. It is partially infested with cotton wilt, or black root fungus. All plots had the same number of stalks. except Plot 11. on which the stand was deficient. Under all conditions cotton seed meal was highly effective and profitable. The acid phosphate was next in average importance. Kainit too, was effective and profitable in most combinations.. The average increase in pounds of seed cotton per acre from cotton seed meal was 274 pounds; from acid phosphate, 123 pounds; and from kainit, 109 pounds. In all cases the largest profits were afforded from the three plots
receiving a complete fertilizer. Plot, 9

$17.92 per acre. This was 294 per cent profit on the investment in fertilizer. Decreasing the kainit from 200 to 100 pounds decreased the yield. Cotton seed meal was slightly more- effective than nitrate. of soda. Increase of seed cotton per acre when cotton seed meal was added:

afforded

the largest profit,.

To

To unfertilized plot-acid phosphate plot To kainit plot --

- - - - - - - - - - - - - - -- 392 lbs. -----------------------132 lbs.

To acid phosphate and kainit

plot

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

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

228 lbs. 344 lbs.

Average increas' with cotton seed meal---------------------- 274 lbs.

33

Increase of seed cotton per acre when acid phosphate
To To To To unfertilized plot______________ -_______ cotton seed meal plot kainit plot----- ---------cotton seed meal and kainit plot
ith

was added:

160 -100 158 274

lbs. lbs.. lbs. lbs..

Average increase

acid phosphate

123 lbs. 98 _-66 96 308 lbs.. lbs.. lbs.. 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

wvithi

kainit--

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

109 lbs. 308 lbs.

Increase from use of

different quantities of kainit:

To use of 200 pounds kainit
To use of 100 pounds kainit--

----------- 244 lbs. - -344 lbs. 296 lbs. 48 lbs.

Increase from use of cotton seed meal-------------from use of nitrate of soda- -- _ __ __ __ __.__

Increase seed nieal better by-Cotton

Experiments in Monroe and Washington Counties.
Ixeiet

MONROEVILLE 0na
a)

I~no

ST. STEPHENS 0rz
a

N~O

Qa)

"~

KIND

OF

o

N ar

0,

aas c

o

Z

FERTILIZER
4-j-

o
4-J 14-

1
2

200
240

C. S. Meal_______
Acid Phosphate

Lbs. 736

3 4
5

000 200
200

No fertilizer.__ Kainit______
C. S.

.504

Lbs. 392 $12.68
160 4.72

Lbs. 776
568

Lbs. 1 182 $4.28
-26 -2.72-

2401

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

Meal----

344 432
616 640 304
552

98
292 326

2.52
7.00 8.64

594 680
88M8

_ 109
339 330
___----

-

2.96
8.88

7
9 10

6{ 200 200

856 504,

8.80

81 200
? 200
240
110 200

000 240

No fertilizer___ Acid Phosphate

Kii 20C. S. Meal___ 240 Acid Phosphate

256

7.16

648

138

2.44
8.16, 6.70.

Kainit___._
C. S.

~

888 816
272

600 536
_528

17.92 16.06

872 824

356 302

Meal---

Acid Phosphate
Kainit-----

11
12
-

000

No fertilizer___

240 100 100

Acid Phosphate Kainit __760 Nitrate of Soda_

488

1464

832

304

7.28

34 IWASHNGTON COUNTY, 5 MILES NORTHWE'T OF CARSON, NEAR STEPHENS

ST.

W. C. PRUIT
Red sandy loam with red

subsoil

This land has been in cultivation for 25 years. Cotton has been ;the chief crop grown on it. No mention is made of damage by rust or other disease.but boll weevils. Cotton seed meal was more effective and more profitable than either phosphate or kainit. The average increase in seed cotton per acre ,due to cotton seed meal was 247 pounds; to acid phosphate, 47 pounds; and to kainit, 110 pounds. Cotton seed meal and nitrate of soda were about equally effective. The largest profits, $8.88 p.r acre, were afforded by Plot 5.
Increase To To To To of seed cotton per acre when cotton seed meal unfertilized plot__ acid phosphate plot--__ kainit plot acid phosphate and kainit plot

was

added: 182 365 221 218 lbs. lbs. lbs. lbs.

h AverageiMreaciteas cotton seed meal- .247l.

Increase of seed cotton pci acre when acid phosphate was added:

To unfertilized

plot--

-26 lbs.

To cotton seed meal plot--

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

157 lbs.

T o kainit plot -- - -- - - - - -- To cotton seed meal and kainit plot _____-____Average increase
-wit

29 lbs. 26 lbs.

acid phosphate

----------

--

47

lbs.

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

109 lbs. -- --- ------- -- - 148 lbs. plot --------164

To acid
To

phosphate

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

lbs.

cotton seed meal and acid phosphate

17 lbs.

A ve rage increase wvith kaeinit -__--___--_-

110 lbs.

35 CLARKE COUNTY, 10 MILES WEST OF THOMASVILLE, NEAR BASHI
T. M. PUGH
Sandy pine upland with clay subsoil Cotton was the preceding cotton was conducted in 1911 ,Station Bulletin No. 160), but plots not receiving kainit were crop. A similar experiment with in the same field as this, (see also not on the same plots. In 1912 all damaged by rust.

The greatest profit was on Plot 6, fertilized with cotton seed meal and kainit. This gave profit of $15.92 per acre, or 362 per cent on the investment in fertilizers. The average results showing the increase due to each fertilizer in different combinations agree closely with those obtained in Mr. Pugh's test in 1911. They show that in both years the material chiefly needed was cotton seed meal; that kainit was next in average importance; and that acid phosphate, though profitable in some combinations (Plots 5 and 8), was of somewhat less importance than cotton seed meal and kainit. Increase To To To To of seed cotton per acre when cotton seed meal was added: unfertilized plot .. acid phosphate plot. . . . . . . . . kainit plot___ acid phosphate and kainit plot 16 lbs. 216 lbs. 472 lbs. 176 1bs.
220 lbs.

Average increase -witl 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 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 . . .194

32 232 140 -156

lbs. lbs. lbs. lbs.

62 lbs. 36 492 144 104 lbs. lbs. lbs. lbs. lbs. 104 lbs. 72 lbs. -80 96 lbs. lbs.

. . .

Increase from use of different quantities of kainit: To use of 200 pounds kainitTo use of 100 pounds kainit Increase from use of nitrate of soda Cotton seed meal better by

36

Experiments in Clarke County.
THOMASVILLE
(Bashi)

GROVE HILL
0
O

N

~
KIND OF
0~4-

0
°

0O
p,

oa
___

FERTILIZER
_5 _ __a___'

cs,
S Lbs.
896 16-$2.36

rn

w

4-J-~0 0

42.12

1 2 3 4
5
6
c

200 240 000 200

7

200

7

:r

9

240 200 230 000 240 200 200 240 200 200
240

Lbs. 272 C. S. Meal288 Acid Phosphate No fertilizer___ 256 304 K ainit -__ _ ___ C. S. Meal528 Acid Phosphate C. S. Meal----800 Kainit N o fertilizer _____ 304 Acid Phosphte ) 8 4 Kainit----C. S. Meal___-656 Acid Phosphate Kainit_ . C, S. Meal__-_)

----------

Lbs. 32 -0.40 36 248 508
7

Lbs.
128

0.04
5.24
15.92

192 960 768__ 816 72
1056
944

6.0 1.48
8.76
5.52

336
248

-- 61
352 320 8.00 7.42

6724

2
832 80

2.88
1.34
_

10 11

Acid Phosphate

100
12 000 240 100 100

Kainit-___-__No fertilizer---_-Acid Phosphate _ KainitNitrate of Soda-

656

960

168

304 544 240 4.72

832
1120 288

6.64

CLARKE COUNTY, 8 MILES WEST OF WHATLEY, NEAR GROVE HILL

J. WINTERS CALHOUN
Grey sandy soil with clay subsoil This land has been cleared only six years. The last three years it has been in cotton. The stand was fairly uniform. The largest average increase from a single fertilizer came from from the use of acid phosphate. In most combinations, cotton seed meal and nitrate of soda were also effective and profitable. A half ration of kainit (100 pounds per acre) was ample. In this test, and in a similar one conducted on the same plots in 1911, the yield of Plot 9 was so low as to indicate some deficiency, Hence a more correct in the natural fertility of the plot.

37 idea of the needs of this land was to be had by disregarding that plot, as is done in the averages in the next paragraphs. Increase To To To of seed cotton per acre when cotton seed meal was added: unfertilized plot --- - --- -- - - --acid phosphate plot---------kainit plot- - - --- ----- --- ---128 lbs.
144 lbs.

176

lbs.

Average increase 'with cotton seed meal

149 lbs.
192 lbs. 208 lbs. 240 lbs.

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

213 lbs.

Increase To To To

of seed cotton per acre when kainit was added: unfertilized plot-- - -- - - - -cotton seed meal plot------acid phosphate plot-increase

---

72 lbs.

120 lbs.
120 lbs. 104 lbs.

Average

with kainit-----

HENRY COUNTY, l MILES NORTHWEST OF HEADLAND
C. F. WILKERSON Sandy loam, with red subsoil This land has been cleared about forty years. The previous crop was cotton. No injuries were reported as due to insects, or otherwise. In this test, by mistake, the fertilizers were applied at a higher rate than in other tests, and higher than was intended. However, every fertilizer used alone gave a slight profit; when used in groups of two, each combination gave a moderate profit; and on Plots 9 and 10, receiving a complete fertilizer, the profits were strikingly large. Evidently this soil needs a complete fertilizer.

2

Each of the single fertilizers, (meal, phosphate, and
was about equally

kainit),

effective.

38

Experiment in Henry County.
HEADLAND
O
c5)

KIND OF

o
);C1 4-0 -

Z
O c

FERTILIZER
o

1 2 3 5 f S
6

4

333 400 000 333 333 4t'0 333
333

7 8 9 10 11 12

000 400 333 333 400 333 333 400 167 000 400 167 167

_ C. S. Meal Acid Phosphate _ _ No fertilizer-____-_ Kainit------------C. S. Meal __- Acid Phosphate C. S." Meal _ K ainit----------fertilizer--_---__ No Acid Phosphate __ Kainit________ C. S. Meal ------Acid Phosphate
Kainit----------5

Lbs. 600 574 440 640 920 20 03014.69 546 880 1280 1093 427

Lbs. 160 134.
174

$1.39 2.55
4.62

427

9.26

364 793 636 21.56 16.45

C. S. MealAcid Phosphate Kainit-_-- No fertilizer-_-___ Acid Phosphate Kainit -- -------Nitrate of Soda

587

-

-

In DALLAS COUNTY, C. Kirkpatrick, conducted an experiment ten miles southwest of Selma, near Cahaba. This proved inconclusive because of lack of uniformity in the unfertilized plots. The yields are given in the table

on

page 41.

In LOWNDES COUNTY, C. E. Reese conducted an experiment south of Lowndesboro Station, on red, oak and hickory land. The results were inconclusive. See page 41. In WILcox COUNTY, an experiment was conducted by G. M. Carmichael, at Sunny South. It is classed a~sinconclusive because of poor stand and lack of uniformity in yield of the unfertilized plots. The yields are given in the table on page 41. In WILCOX COUNTY, an experiment was conducted by E. B. Carter, two miles east of Allenton. This proved inconclusive because of the late date at which the cotton came up. A report of the yields can be found in the table on page 41. In MONROE COUNTY, an experiment was conducted by A. L. Harrison, near Jones' Mill, on grey sandy soil with reddish subsoil which had been in

39
cultivation about 8 years. The crop in 1911 was.oats followed by cowpeas and the cotton in 1912 was not planted until June 12, following a crop of oats. The late planting and the effects of the preceding crop of cowpeas make the experiment inconclusive. See page 41 for table of yields. In CLARKE COUNTY, an experiment was conducted on grey sandy loam by R. L. Hearon, six miles west of Thomasville. This proved inconclusive because of the difference in the natural fertility of the three unfertilized plots. A report of the yields is given on page 41.
In ESCAMBIA COUNTY, 2 miles east of Canoe, F.

J.

German conducted an

experiment. This proved inconclusive, probably because of the unfavorable season and some difference in fertility between the different unfertilized plots. Injury from boll weevil was slight. See page 41.
In MACON COUNTY, an experiment was conducted by B. H. May, five

miles west of Notasulga. This proved inconclusive between the unfertilized plots, etc. See page 42.
In MACON COUNTY, 7 miles west of Tuskegee, W.

because of variations
W. Thompson con-

ducted the experiment on light gray, fine sandy loam soil, with yellow subsoil. This experiment proved inconclusive because of apparently richer soil on Plot 1 than on other plots. However the results suggest that all fertilizers whether single or in combination, were effective. The largest profit, $16.30, was afforded by Plot 10, which was fertilized, per acre, with 200 pounds cotton seed meal, 240 pounds of acid phosphate, and 100 pounds of kainit. See page 42 for table of results.
In BULLOCK COUNTY, E. A. Brooks conducted an experiment eleven

miles southeast of Inverness, near Perote. This proved inconclusive because of the difference in the fertility of the plots on which no fertilizer was applied. See page 42.
In BARBOUR COUNTY, 3 miles northwest of Clayton, an experiment was

conducted by D. C. Nix. This experiment proved inconclusive because of failure to have three unfertilized plots, according to directions. Assuming that the land is uniform, the results suggest that every fertrlizer, whether used alone or in combination, was profitable; that the land needed a complete fertilizer containing more than 100 pounds of kainit per acre. The largest profit $21.36 per acre, was afforded by Plot 12, which received a complete fertilizer containing nitrate of soda. See page 42 for table of results. In PIKE COUNTY, 7 miles south of Troy, H. W. Ballard conducted an experiment on a dark red sandy loam soil. This proved inconclusive because of some variation in fertility between the different plots, and probably because the land was sufficiently fertile to produce 200 pounds of seed cotton per acre. See page 42 for table of results.
In BUTLER COUNTY; one-half mile south of McKenzie, an experiment

was conducted by J. C. Arant, which proved inconclusive because of damage from wilt. However, it is evident that kainit was especially effective, and that the other fertilizers were also helpful. See page 42.

40
In HOUSTON COUNTY. J. W. Tharp conducted an experiment two miles southwest of Dothan. This proved inconclusive because of the difference in the fertility of the three unfertilized plots, See page 42 In DALLAS COUNTY, an experiment was conducted by A.

R. Moses, five miles north-east of Selma. This proved inconclusive because of late planting and unfavorable weather conditions. See table below.
In MACON COUNTY, T. F. Proctor conducted an experiment near Tuske-

Poor stands rendered the experiment inconclusive. Cook, on his farm, six miles west of Camden. This proved inconclusive because of late planting and continuous wet weather. See table below. In LOWNDES COUNTY, J. B. Mitchell, Jr., conducted an experiment on black prairie bottom land. This proved rather inconclusive because of differences in the three unfertilized plots. However, the results suggested that all combinations of fertilizers were effective and profitable. See table below. In MACON COUNTY, an experiment conducted by Chas. W. Thompson, near Tuskegee, proved inconclusive because of extremely late planting.
In WILCOX COUNIITY, an experiment was conducted by G. M.

gee, on sandy soil.

Inconclusive Experiments in Dallas, Wilcox and Lowndes Counties.
SELMA CAMDEN LETOHATCHIE

NOa
.-

I VN 0a]

-0a a)

o

V0a)
)

a)

-

V

a)
a

44

KIND OF

-

l

FERTILIZER

i. D

0

0w

7jv

1 2 3
4

200 240 000
200

C. S. Meal____ Acid Phosphate _ No fertilizer----

Lbs. 200 184 192

Lbs. 8 -8 __

Lbs. Lbs. 592 240 168 520 352 _

Lbs. 1336 1052 908

Lbs. 428 144 000

Kiainit-----C. S. Meal

328

5 20

6
7

20 Acid Phosphate 200 C. S. Meal ___ 200 Kainit_____

288
360
264

118
60

416
496

58
132

776
960

-41
234

114 12 2 60 70

640
376

270 28 1 260 242

984

349

f
{.

000

No fertilizer---

9

(
10{

240 200 200 240 200
200

Acid Phosphate Kainit C. S. Meal_ Acid PhosphateKiainit_._
C. S.

42 44 400 448: 416 568

60 68 664 760 432

544-000 95 37 92 7 1416 1224 680 804 578 000 80

240
100

Acid Phosphate
Kiainit-----

Meal---

11
12

000 240 100 100

No fertilizer-.-. Acid Phosphate Kainit_ ____ Nitrate of Soda_

152

528

96

760

Inconclusive

Fertilizer

Experiments

in

Dallas,

Lowndes,

Wilcox,

Monroe,

Clarke

and

Escambia

Counties.

CAHABA

L'WND'SB'RO

SUJNNY S'UTH

ALLENTON
o

JONES'

MILLI

THOM'VILLE

CANOE
o

QG)

v)

QU )

C)

Q

)

C)

QUO

C)

Q

)

Q ).)

Q

)

)

cOc
Qt9
)

co
U Q4N

c
U -Q -

C

cO
U+ G

C

c7c=
GN -+ G CU)

0

rt-t

1 2
3

200 241)
000

C. S. Meal----Acid Phosphate
No fertilizer 4--200 Kainit _._

760 816
1064
896

--144
88
248
--

-136 -80

880 720
800

80 -80
140

640 536
544

5

200 240

C. S. Acid Phosphate5
C. S. Kainitr No
_._ __

Meal

880

608

--56
192
176
--

96 -8

432 320
248

184 72
38

576 520
488
___

88 32
280

780 664
604

--201

176 60

594 630
540

54 90

---148

272

736

840

648

1032

920
800 560
_

240
180
__

752

432
280 192

212
74

744
600 360
-

320
208
--

904
880 744

230
171

630
702
I

170
282
-

200
7

6

20

Meal ---1216
992

144
576

000

ferilizer --Meal--Meal -5
k

--122 180

---12 76

378

8 240

.200

Acid Phosphate

Kainit
C. S.

1040 904

156 128

680 720

110 140

584 616

58 140

312 368

560 664

178 260

688 684

540 576

135

9
10 0

200

240
200 200

Acid Phosphate

144
171

Kainit --C. S.

Acid 000
401

100 1 Kainit
11

Phosphate
_

$----

776 560

108

640 60

50
-

504

78

352 184
_

166

664 448
_

238

936

396

630 486

No fertilizer Kainit_

100

012 hsht Nitrate of Soda

-376
576

472 -----

--108

712

152

720

120

II

200

312

128

544

96

712

240

594

inconclusive FertilizerExperiments in Macon, Bullock, Barbour, Pike, Butler and Houston Counties
N OTASULGA
TUSKEGEE PEROTE
Ir

CLAYTON
1 1

TROY

MCKENZIE

DOTHAN

C
,,VQ; a) UQa)

C 0
Ca

C

o

CU $no
Ua)-+ U a) ..

KIND OF
a Caa
oFERTILIZER

a) N
).-

a aa
a)

u

Na)

Q

a)

a)

C

N
a).7a

C UaC a

N

a)

C, N
a)r

a)

~ C7:1
0Qa)

co

-a)'c CC
r w

1 2
3
4 5

200 240
000
200

Lbs. 928 C. 8. Meal____ Acid Phospbate _-- 640
No fertilizer.-.--560

Kainit-----C. S. C. S.

200

240
6 200
200

Acid Phosphate S
Kainit---

Meal---

632
736 800 384

--- 440 664 116
264 372 768 720 392

Lbs. 368 80

Lbs. 976 744

Lbs. 304

LbS

ILbs.

236
352 316
____

152 10018 104(.0 184 6 84(.0 140 48(O -64

85(

Lbs. 304 280 336 424 488 208 384 760 720

Lbs. 96 72 128 216 280 176 552 512

Lbs. 872 992 968 1064 1272 1336 1112 1136 12081 1480 1244

Lbs. -96 24 60 232 260 -9 30 269

Lbs 344 376 272 512 720 640 264 664 688 576 288

Lbhs.

72 104 242
452

Lbs. 708 704
568

724
880 1076 952 932 904 784 592

--60
i

Lbs. 140 136

I

123 220 70 132 102

I

7

Meal-----

000

No fertilizer

8 240

Acid Phosphate

---

92(1)
3

532 320 328
408

374 394 412 294

I

52

13

64

27

53 3 3

I

S 200
10 11 12

200

Kainit----C. S. Meal___
Acid Phosphate Kainit______ No fertilizer-. Acid Phosphate Kainit_ __ __ Nitrate of Soda_ 624 204 856 542

240 100 000 240 100 100

59z" 161 711

2

432 +___ 784 352

288__ 640 352

- - 244
.. ,,:

2 544

864

656

1192

-52

440

152
,.

836