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Method and Rate of Applying Zinc Sulfate for Corn on Zinc-Deficient Soil in Western Nebraska¹

Synopsis: Application of 5 pounds of Zn per acre broadcast and plowed under before planting increased early growth and grain yield. Other methods of application were less effective. Greater rates of application increased Zn concentration in young and nearly mature corn. Small amounts of N banded with ZnSO₄ enhanced the effectiveness of ZnSO₄. Yields of corn grain were related to Zn concentration of the index leaf.

² Formerly Assistant Agronomist, Nebraska Agr. Exp. Sta. (now Assistant Agronomist, Oregon Agr. Exp. Sta.); formerly Soil Scientist, Western Soil and Water Management Branch, SWCRD, ARS, USDA (now Associate Soil Scientist, Washington State University); formerly Soil Scientist, Western Soil and Water Management Branch, SWCRD, ARS, USDA (now Soil Scientist, SWCRD, ARS, USDA, Morris, Minn.); and formerly Graduate Assistant, Nebraska Agr. Exp. Sta. (now Sr. Experimental Aide, Washington State University).

Received for publication August 30, 1962.

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