Michigan State University Extension
Michigan Soybean Information - 00000087
11/16/00
Iron Chlorosis
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Iron deficiency, like manganese deficiency, is limited to
high pH (7 or above) soils. The deficiency is accentuated
by very dry soil. Plants are stunted with pale green or
yellow to nearly white leaves with green veins similar to
manganese-deficient plants. (Vis. 1) Symptoms are usually
confined to the upper part of the plant. Iron deficiency
is more commonly reported west of the upper Mississippi
River, while manganese deficiency is reported east of the
Mississippi. Consider using tolerant varieties and
correcting with foliar fertilizer sprays.
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This file was generated from data base S1 on 11/16/00.
Data base S1 was last revised on 11/16/00.
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