EXPERIMENTS WITH SINGLE-STALK COTTON CULTURE. 



15 



The yields reported in Table IX are for the first picking from 10 

 representative rows in the single-stalk acre and 10 in an adjoining 

 acre. No complete report on the second picking is available. 



Table IX. — Row yields of first picking obtained in a single-stalk culture experiment 

 with cotton conducted in 1915 on the farm of C. C. Herndon, Shreveport, La. 



Row. 



Yield of seed cotton 

 (pounds). 



Row. • 



Yield of seed cotton 

 (pounds). 



Single 

 stalk. 



Old 



method. 



Single 

 stalk. 



Old 



method. 



No. 1 



13 

 11 

 12 

 10 

 12 

 12 

 13 



11 

 10 

 12 

 11 



12 

 10 

 9 



No.8 



13 

 14 

 13 



11 



No. 2 



No. 3.. 



No.9 



No. 10 



12 

 14 



No. 4 



No. 5 



Total .-. 





123 



11 



9.8 



112 



No. 6 



Difference 



Increase per cent . . 





No. 7 









Table IX shows that in 6 out of 10 instances greater yields were 

 obtained from single-stalk rows. In two instances the yields were 

 identical, while in two other instances the old-method yield exceeded 

 the single-stalk yield by 1 pound per row. The total yield of the 10 

 rows favored single-stalk culture by 9.8 per cent. 



The Mercer experiment. — While Mr. William Mercer, of Gilliam, 

 cooperated in this work on the same basis as other farmers, he was 

 left much alone in the conduct of his experiment. It was imprac- 

 ticable to visit his field at thinning time, and consequently he 

 thinned his cotton according to his interpretation of the general 

 instructions offered. At all times, however, he cooperated with 

 Mr. A. J. Scott, county agent. No report of how he planted his 

 cotton or the time and method of thinning is available. The only 

 data available are given in Table X. 



Table X. — Row yields obtained in a single-stalk culture experiment with cotton con~ 

 ducted in 1915 on the farm of William Mercer, Gilliam, La, 





Yield of seed cotton (pounds). 



Row. 



First picking. 



Second picking. 



Total. 





Single 

 stalk. 



Old 



method. 



Single 

 stalk. 



Old 

 method. 



Single 

 stalk. 



Old 



method. 



No. 1 



12 



10 



9 



9 



10 



10 



10 



10 



9 



10 



9 



10 

 10 

 10 

 10 



9 

 10 



9 

 10 



9 



2 



22 

 12 

 12 

 2 

 22 

 22 

 2 

 2 

 2 



22 



22 



2 



22 



22 



2 



2 



2 



22 



2 



14 

 32 

 21 

 21 

 12 

 32 

 32 

 12 

 11 

 12 



31 

 32 

 12 

 32 

 32 

 11 

 12 

 11 

 32 

 11 



No. 2 



No. 3 



No. 4 



No. 5 



No.6 



No.7 



No.8 



No.9 



No. 10 





Total 



99 

 3 

 3 



96 



100 



120 

 20 

 20 



199 



216 

 17 



Difference 











8 













