Grain Sorghum Production in South-Central Arizona. III: Double Crop, Rainfed - 1985

Abstract

Seventy-two commercial hybrid grain sorghums representing 17 commercial sources were grown for grain in a late planted, simulated double-crop after barley or wheat harvest. The test, grown at the University of Arizona Marana Agricultural Center, was planted in a pre-irrigated seed bed, but was rainfed thereafter. Grain yields ranged from a high of 3420 lbs/acre down to a low of 1750 lbs/acre.