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Sorghum Grain Production Under Natural Rainfall with Minimum Irrigation in Cochise County, Arizona
Robert Lee Voigt, Larry Sullivan, Carl L. Schmalzel, David K. Parsons
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Abstract
A late planted sorghum grain production test in Cochise County under varying amounts of irrigation water supplemental to natural rainfall utilized only about 64% of the usual average pounds of irrigation water used per pound of grain sorghum produced. The late planting date of July 20 to utilize natural rainfall resulted in only half of the normal full season yield. This reduced yield caused the normal costs of production to exceed income.