Actinomycetes Arbuscular Mycorrhizal Fungi (AMF Bacteria Involved in Zinc Oxidation Chemical Reactions of Zinc in Soil Enzymes Activated by Zinc in Plants Fungi Involved in Zinc Oxidation Importance of Zinc in Crops Mechanisms of Zinc Oxidation by Microbes Microorganisms Involved in Zinc Transformations Recommended Zinc Applications Zinc Deficiency in Crops Zinc Deficiency: Management with Zinc Sulfate Fertilizer Zinc Status of Soils and Plants Zinc Sulfate Fertilizer: Importance, Role in Crops, and Its Soil Interactions Zinc Uptake Pathway in Plants Zinc Uptake Pathways in Soil