Iron Deficiency Chlorosis is a symptom of this season’s variable weather conditions. this year, “Higher pH soils, calcium carbonate, excess salts and even excess nitrate from the previous year contribute to that,” said University of Minnesota Extension Educator Dave Nicolai. Growers are advised to consider soybean varieties that are more tolerant to IDC. “Secondly, there are some products on the market that can be banded on at planting; they are in iron chelate form from different suppliers.” Nicoai said improving drainage would also help.
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