Michigan State University Extension
Soils & Soil Management - Fertilizer - 06039719
07/10/97
Tri-state Fertilizer Recommendations for Corn, Soybeans, Wheat and Alfalfa Extension Bulletin E-2567 (New), July 1995
M.L. Vitosh, Michigan State University; J.W. Johnson, The Ohio State University; D.B. Mengel, Purdue University; Co-editors
Micronutrients are required by plants in small amounts. Those essential for plant growth are boron (B), chloride (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn).
Most soils in Michigan, Indiana and Ohio contain adequate quantities of micronutrients. Field crop deficiencies of Cl, Mo and Fe have not been observed in this region of the United States. Some soils, however, may be deficient in B, Cu, Mn and Zn, and deficiencies can cause plant abnormalities, reduced growth and even yield loss. When called for, micronutrient fertilizers should be used judiciously and with care. Some micronutrient fertilizers can be toxic if added to sensitive crops or applied in excessive amounts. (Vis. 24) lists the soil and crop conditions under which micronutrient deficiencies are most likely to occur.
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| Crop and soil conditions under which micronutrient defeciences - 23K |
