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UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 268 



Contribution from the Bureau of Plant Industry 

 WM. A. TAYLOR, Chief 



Washington, D. C. 



July 20, 1915. 



CROP PRODUCTION IN THE GREAT 



PLAINS AREA 



RELATION OF CULTURAL METHODS TO YIELDS 



By 



E. C. CHILCOTT, Agriculturist in Charge, and J. S. COLE 



and W. W. BURR, Assistants, Office of 



Dry-Land Agriculture 



CONTENTS 



Introduction 1 



Climatic Features of the Great Plains . . 3 



Soils of the Great Plains 5 



Crops and Cultural Methods 5 



Results of Methods Tested with Various 



Crops 5 



Pago 

 Tillage Practices 21 



Accessory Tillage 24 



Regional Adaptation of Crops 26 



Conclusions .... 27 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1916 



