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UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1260 
Washington, D. C. 
August, 1924 
SORGHUM EXPERIMENTS ON THE GREAT PLAINS 
By 
spo ■'« 1924 ' 
H. N. VINALL, Agronomist in Charge of Sorghurdj Investigations, and 
R. E. GETTY and A. B. CRON, Assistant jAg&oldsts' ** 
Office of Forage-Crop Investigations , 
In Cooperation with the Office of Cereal Investigations, HUfRIU WTlanfTn 
CONTENTS 
Page 
The Sorghum Belt 1 
Climatic Features ,2 
Soils 7 
Native Vegetation 9 
Sorghum Groups and Varieties 10 
Experimental Methods 11 
Preservation of Soil Uniformity 11 
Plat Technique 11 
Seeding Methods 11 
Harvesting Methods 12 
Methods of Obtaining Data 12 
Varietal Experiments . 13 
Hays, Kans 13 
Chillicothe, Tex 23 
Amariilo, Tex . 32 
Page 
-Continued 
38 
Varietal Experiments- 
Woodward, Okla 
Lawton, Okla 40 
Dalhart.Tex 41 
Big Spring, Tex 43 
Tucumcari, N. Mex 44 
Northern Great Plains 46 
Summary of Varietal Experiments .... 47 
Cultural Experiments v • 57 
Date of Seeding . . . 57 
Rate of Seeding in Rows 72 
Rate of Seeding in Close Drills or Broadcast 83 
Time of Cutting Sorghum for Hay 85 
Literature Cited 88 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1924 
