Based on information from across the Corn Belt, including states where they have more experience with delayed planting of corn (University of Wisconsin – http://wisccorn.blogspot.com/2019/06/B102.html) and Iowa State University – https://crops.extension.iastate.edu/cropnews/2019/05/cover-crop-options-prevented-planting-fields), these are our best recommendations for using corn as a cover crop.
Although the yield potential of corn planted in July for grain and silage is very low, corn makes an excellent “emergency” forage when planted in July. Moreover, unlike some other forage crops, Ohio producers know how to grow it. We also are aware of limited seed supply for several alternatives that typically could be used. Farmers should consult with their insurance agent to see if harvesting as forage will affect any current or future insurance payments on prevented plant acres.
As a cover crop, corn can . . .
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