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Short-Season Soybean Cultivars Have Similar Yields With Less Irrigation Than Longer-Season Cultivars
J. T. Edwards, L. C. Purcell, E. D. Vories, J. G. Shannon, and L. O. Ashlock
September 2003
Research
Short-season soybean cultivars were evaluated in narrow rows and at high populations for their ability to withstand drought in the midsouthern USA. This research finds that yield potential is similar for cultivars from Maturity Groups I, II, III, and IV under favorable conditions, that irrigation can be decreased by use of early-maturing cultivars planted in April or early May, and that risk of exposure to drought can be decreased by including MG I and II cultivars in a nonirrigated, early production system.
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