Corn harvest is fast approaching. This year’s corn maturity is about 5-10 days behind normal. With field dry down occurring in late September and October this year, there is the potential for a later harvest of corn at a higher moisture content. The rule of thumb has been that corn dries at a rate of 0.5 to 1.0% per day in September, 0.25 to 0.5% per day in October, and almost no drying occurring in November. Of course, these rules of thumb can change with favorable or unfavorable weather conditions.
Iowa State University
Licht, Mark A. and Archontoulis, Sotirios, "Corn Grain Dry Down in Field From Maturity to Harvest" (2017). Integrated Crop Management News. 2475.
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