438 
Journal of Agricultural Research 
Vol. XXIII, No. 6 
RESULTS OBTAINED AT MUSCLE SHOALS, ALA. 
plantings on clarkvillb loam 
The experiments at Muscle Shoals were made on soil of Clarkville 
loam, located on a gentle slope, and well drained. The soil is fairly 
retentive of moisture and does not become compact. The plan of the 
experiments differed somewhat from that at the Arlington Experimental 
Farm in that the fertilizer was applied only in the drill and the seed was 
planted immediately as in section 2 of the Arlington tests. The 4-8-4 
fertilizer was used at the same rate of application (1,000 pounds), and 
borax was used so as to apply 5, 10, and 20 pounds of anhydrous borax 
per acre. Two controls in which no fertilizer was used were added. 
One row 100 feet long was used for each treatment, which makes each 
plot approximately i/noacre. The test was repeated six times. The 
first was started June 12 and the others followed at intervals of about 
one week. The separate plantings are designated as series A, B, C, D, 
E, and F. Cleveland Big Boll cotton was used. 
In Table III are given the data for this set of plots, including the 
height of the cotton plants at intervals during growth, the number of 
bolls which formed, and the green and dry weights of the plants, including 
the roots. 
Table III .—Effect of borax in fertilizers on the growth of cotton, on Clarkville loam at 
Muscle Shoals, Ala., in IQ20 
Experiment series, date of 
starting, and quantity of 
borax applied per acre. 
Average height of plants. 
Bolls on 
Oct. 26. 
Green 
weight of 
plants. 
Increase or 
decrease. 
Dry 
weight of 
plants. 
July 28. 
Aug. 20. 
Oct. 18. 
Series A, June 12: 
Inches . 
Inches , 
Inches . 
Number . 
Pounds. 
Per cent. 
Pounds. 
No fertilizer 
12. 3 
28.8 
237 
31 
IO 
No borax. 
12. 9 
2 S-3 
45-5 
667 
O 
93 
3 6 , 
5 pounds. 
9.6 
21. 8 
44.4 
583 
86 
- 7.6 
33X 
10 pounds. 
17-3 
42.1 
456 
85 
- 9.4 
3» 
20 pounds . 
4.9 
13*2 
32.6 
242 
44 
“52-7 
*5 
Series B, June 19: 
No borax . 
12.0 
28.6 
co. 0 
716 
104 
40 
5 pounds. 
10.5 
55-7 
0 
43-3 
# 
S 6 3 
84 
— 19. 2 
WA 
10 pounds. 
8.0 
24.1 
43 - 0 
576 
78 
-25.0 
3*X 
20 pounds. 
6.9 
15.6 
39- 1 
383 
63 
~39-4 
*S 
Series C, June 26: 
No borax. 
0. 4. 
18.1 
4$. 2 
86 
34 
5 pounds. 
y *r 
6.3 
i5-1 
40. 5 
00 / 
220 
78 
~ 9-3 
28K 
10 pounds. 
6.9 
12.9 
39-9 
224 
75 
— 12. 8 
26 
20 pounds. 
5- 0 
9.6 
3i-5 
97 
43 
-50.0 
15 
Series D, July 3: 
No borax... 
6. 2 
16.1 
42. 2 
112 
63 
25K 
5 pounds. 
5- 2 
15.1 
41. 6 
94 
62 
— 1. 6 
24 
10 pounds. 
4.1 
12.0 
32.9 
92 
59 
- 6.4 
23 
20 pounds. 
3- 2 
7.2 
29-3 
53 
39 
-38.1 
13 
Series E, July n: 
No borax. 
12.3 
36.8 
45 
55 
17 yi 
5 pounds. 
ii-5 
33-7 
48 
56K 
+ 2.7 
20 
10 pounds. 
9.9 
31. 3 
46 
co% 
- 8.2 
20 
20 pounds. 
8.4 
26.1 
14 
38 
-31.0 
11 
Series F, July 20: 
No fertilizer. 
C. I 
0. c 
0 
s l A 
1 
No borax. 
D* 
IO. O 
7 J 
28. 2 
c 
4 6% 
r 5 
5 pounds. 
8.9 
29. I 
D 
7 
47 
4 - 1. 0 
15 
10 pounds. 
8. 7 
2?. 7 
4 
4 1 
— 11. 9 
11 
20 pounds. 
1 7-6 
22 . 4 
1 
35 
— 24. 8 
8 
