Corn grain yield is very responsive do Zn in Brazilian soils. A greenhouse experiment was conducted in the Crop Science Department of the Botucatu College of Agricultural Sciences to compare sources of Zn and their application to corn. Three plants were grown up to 45 days in 10 L pots filled with a Dark Red Latosol (Acrortox, 22% clay). The soil was limed to 70% of base saturation. Zinc was applied to corn seeds (90 g ha-1), in the seed […]