UNITED STATES DEPARTMENT OF AGRICULTURE 



BULLETIN No. 526 Mgttb 



Contribution from the Bureau of Plant Industry 

 WM. A. TAYLOR, Chief 



jS&p^&L 



Washington, D. C. 



PROFESSIONAL PAPER 



August 28, 1918 



EXPERIMENTS WITH SINGLE-STALK COTTON 

 CULTURE IN LOUISIANA, ARKANSAS, AND 

 NORTH CAROLINA. 



By P. V. Cardon, 

 Assistant Agronomist, Office of Crop Acclimatization. 



CONTENTS. 



Importance of single-stalk cotton culture . . 



Localities where experiments were made 



Methods of procedure 



Selection of cooperators 



Plan of the experiments 



Thinning single-stalk rows 



Recording the yields 



Results obtained 



Yields of seed cotton 



Yield and quality of lint. 

 Lint percentages 



6 



6 



27 



28 



Relative abundance of lint 28 



Grade and length of lint - 29 



5 Summary 30 



IMPORTANCE OF SINGLE-STALK COTTON CULTURE. 



Single-stalk cotton culture was first announced as a new system 

 in 1913, and at that time also its principles were outlined. 1 Since 

 that year three additional publications 2 have been issued, which 

 present results obtained in 1913 and 1914 from experiments with the 

 system in Virginia, South Carolina, and Texas. The purpose of this 

 report is to present the results obtained in 1915 from a series of 

 experiments conducted in the States of Louisiana, Arkansas, and 

 North Carolina. 



The single-stalk system is based on the recognition of a fact that 

 has not been taken into practical account in most of the cultural 



1 Cook, O. F. A new system of cotton culture. U. S. Dept. Agr., Bur. Plant Indus. Cir. 115, p. 15-22, 

 1913. 



2 Cook, O. F. A new system of cotton culture and its application. IT. S. Dept. Agr., Farmers' Bui. 601, 

 12 p., 2 fig. 1914. 



Cook, O. F. Single-stalk cotton culture. U. S. Dept Agr., Bur. Plant Indus. [Misc. Pub.] 1130, U 

 p., 12 fig. 1914. 



Meade, R. M. Single-stalk cotton culture at San Antonio. U. S. Dept. Agr. Bui, 279, 20 p., 3 fig., 6 pi. 

 1915. 



75103°— 18— Bull. 526 1 



