University of Minnesota Extension Agronomist Seth Naeve hasn’t seen much Iron Deficiency Chlorosis (IDC) in soybeans across southern Minnesota yet, but it could show up soon. It is showing up in other parts of the state. Naeve says the cool, wet conditions are perfect for IDC. “If we get some really hot weather at the beginning of July, that will cause the soybean to push down with its root and give the plant more access to iron,” says Naeve. “It will pop out of the IDC quickly that way, but if we have prolonged cool, cloudy, wet weather it will hang on and not only will the beans not grow, the IDC will hang on much longer.”
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