Vs. DEPARTMENT OF AGRICULTURE. 

 BUREAU OP PLANT INDUSTRY— BULLETIN NO. 187. 



B. T. GALLOWAY, Chief of Bureau. 



A STUDY OF CULTIVATION METHODS AND 

 CROP ROTATIONS FOR THE 

 GREAT PLAINS AREA. 



E. C. CHILCOTT, 



Agriculturist in Charge, Assisted by Members of the 

 Field Staff of the Office of Dry-Land 

 Agriculture Investigations. 



Issued November 5, 1910. 



WASHINGTON: 

 government printing Office. 

 1910. 



