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Precipitation-Yield Relationships in Dryland Wheat Production on Medium to Fine Textured Soils of the Southern High Plains¹

Synopsis: On the basis of long term weather records, alternate wheat-fallow and wheat-sorghum-fallow can be expected to produce more than 10 bushels of wheat per acre approximately 80% of the time. Continuous cropping can be expected to produce more than 10 bushels of grain only 50% of the time. Other calculated frequencies of yield occurrence similarly favored the use of fallow for dryland wheat production.

² Soil Scientists and Agriculturist, respectively, Western Soil and Water Management Research Branch, SWCRD, ARS, USDA, Southwestern Great Plains Field Station, Bushland, Texas. The authors acknowledge the capable technical assistance of past and present personnel of the Southwestern Great Plains Field Station. They are particularly indebted to C. J. Whitfield, former Superintendent of the Station, who initiated and supervised for 11 years the cropping sequence experiments evaluated in this report.

This article has been cited by other articles:

				L. R. Stone and A. J. Schlegel Yield-Water Supply Relationships of Grain Sorghum and Winter Wheat Agron. J., September 5, 2006; 98(5): 1359 - 1366. [Abstract] [Full Text] [PDF]