24 
BULLETIN" 526, U. S. DEPARTMENT OF AGRICULTURE. 
to 10 inches high and had 6 to 7 leaves. The plants in the former 
rows were spaced 15 to 18 inches apart, those in the latter 4 to 6 
inches. 
There were 20 rows in the experiment, and the two systems of 
culture were compared in pairs of rows — that is, two single-stalk 
rows alternated with two old-system rows, making 5 pairs of rows 
for each system. Only one picking was made, and this was delayed 
until late in November, at which time, it was reported, all the bolls 
were open. Whether much cotton had fallen to the ground mean- 
time can not be stated; but it is safe to assume that some had fallen, 
especially from single-stalk rows, which probably were earlier than 
the others. The row yields, as reported by Mr. Sanderson, are given 
in Table XVIII. 
Table XVIII. — Row yields obtained in a single-stalk culture experiment with cotton 
conducted in 1915 by L. M. Sanderson, Warsaw, N. C. 
Row. 
Yield of seed cotton 
(pounds). 
Row. 
Yield of seed cotton 
(pounds). 
Single 
stalk. 
Old 
method. 
Single 
stalk. 
Old 
method. 
No.l 
91 
69 
87 
74 
68 
68 
73 
84 
76 
58 
72 
83 
52 
66 
No.8 
95 
89 
51 
74 
No. 2 
No. 9 
85 
No. 3 
No. 10 
72 
No 4 
Total 
No. 5 
765 
43 
6 
722 
No. 6 
No. 7 
Increase per cent. . 
Table XVIII shows that in 7 of the 10 instances single-stalk cul- 
ture yielded more than the old method, the differences varying from 
2 to 21 pounds per row. In the remaining three instances the old 
method gave greater yields, varying from 7 to 21 pounds per row. 
The total yield favored single-stalk culture by 43 pounds, or 6 per 
cent. 
CRAVEN COUNTY. 
Two experiments were conducted in Craven County — one by J. L. 
Roper, at Riverdale, and another by B. C. Peterson, at Vanceboro. 
The Roper experiment. — Mr. W. M. Laughinghouse, superintendent 
of the Rockwell Farm of J. L. Roper, at Riverdale, planted cotton on 
May 11 in rows 4 feet apart on flat land, using 1 bushel of seed per 
acre. A good stand was secured, but dry and cold weather during 
May and early June checked growth materially. No definite infor- 
mation concerning the dates of thinning and the condition of the 
plants when thinned is available, but the plants in the old-method 
rows were spaced at 20 inches in the row as compared with 2 to 6 in 
the Single-stalk rows. The thinning was done by Mr. Laughinghouse 
as suggested by Mr. J. W. Sears, county agent. It was not practi- 
