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AGR-183 Late-Season Frost Damage to Corn Grown for Silage

By Chad Lee, James Herbek, Grain Crops and Extension Specialists

Abstract

Late corn plantings and cool autumn temperatures create a recipe for frost damage on corn grown for silage. The extent of the frost damage on the corn depends on the temperature, duration of the temperature, and corn growth stage at the time of the frost. Conditions for a Frost Air temperatures below 32°F for four to five hours will result in frost damage to the stalk, leaf, and husk. Air temperatures that drop to 28°F for a few minutes and return to 32°F can result in similar injury. Air temperatures between 32°F and 40°F typically result in less frost damage. Frost at temperatures above 32°F usually occurs under conditions of clear skies, low humidity, and no wind. These conditions are ideal for rapid heat loss from the corn leaves. Under these conditions, temperature of the corn leaves can be less than th

Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.189.4709
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