Micronutrient fertilizers can be either inorganic or organic materials. The inorganic materials can be further divided into water-soluble and non-soluble compounds. Organic materials are either synthetic chelate or natural organic complexes.
Chelates are ring-type chemical structures formed around a polyvalent metal. Chelated micronutrients are of interest because they tend to remain soluble longer when applied to the soil, giving time for the plant to take up the desired nutrient.
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