26 
BULLETIN 526, U. S. DEPARTMENT OF AGRICULTURE. 
high and had 4 to 6 leaves, were spaced 16 inches apart. The single- 
stalk rows were thinned on June 24, when the plants, 8 to 10 inches 
high with 10 to 12 leaves, were spaced 6 to 8 inches apart. 
Only one picking was made. The yield of each row as reported by 
Mr. Peterson is given in Table XX. 
Table XX. — Row yields obtained in a single-stalk culture experiment with cotton 
conducted in 1915 by B. C. Peterson, Vanceboro, N. C. 
Row. 
Yield of seed cotton 
(pounds). 
Row. 
Yield of seed cotton 
(pounds). 
Single 
stalk. 
Old 
method. 
Single 
stalk. 
Old 
method. 
No. 1 
57 
62 
60 
56 
69 
66 
64 
66 
57 
56 
61 
62 
69 
59 
No.8 
69 
" 76 
70 
68 
No. 2 
No. 9 
70 
No. 3 
No. 10 
63 
No 4 
Total 
No. 5 
649 631 
No. 6 
18 
No. 7 
Increase per cent. . 
3 
Table XX shows that in 7 of the 10 instances single-stalk rows 
yielded more than the old-method rows. The difference in total 
yield, however, due largely to a poor stand, was only 18 pounds, 
or 3 per cent, in favor of single-stalk culture. 
Tabular Summary. 
The yields of seed cotton obtained from the 21 experiments dis- 
cussed in the preceding pages are summarized in Table XXI. 
Table XXI. — Summary of yields obtained in 21 single-stalk culture experiments with 
cotton conducted in 1915 in 9 parishes and counties in Louisiana, Arkansas, and North 
Carolina. 
Picking and method. 
Yield of seed cotton (pounds). 
Louisiana. 
Arkansas. 
North Carolina. 
S3 ! £ 
505 226 
380177 
First picking: 
Single stalk... 
Old method.. 
Second picking: 
Single stalk '350,211 
Old method 300 178 
Third picking: 
Single stalk ' 
Old method 
Total: 
Single stalk '855 
Old method 6S0 485 
Increase (per cent): 
Gain or loss ( — ) 
for single stalk... I 26 
134 
24 
2S7 227 
207 206 
..149 
.. 140 
193 336 
229 338 
295195 
262160 
645 123 
780 112 
99115 79 
82 
287 376 
207 346 
488 531 
491 498 
-0.6 
100 1 ... 
120,.. . 
564 1,074 582 
1,004 540 
645 123 199 115 118 
780 112 
•17 10 
28 
917 1,074 
764 1,004 
20 
6991,497 
582 1, 347 
850 765 
782 722 
620 ! 649 
510 631 
302 
274 
699 1,821 
582 1, 672 
850 765 
782 722 
1,029 
Actual yields not reported. 
