It refers to inorganic nutrients that are enclosed by an organic molecule. A chelate is a specific kind of chemical compound that is more easily dissolved and absorbed than other types of molecules and chemical compounds.
Are you asking about the fertiliser forms, or the use of chelating agents in solution to extract trace metals from soils?
Fertilizers where the micronutrient ions is sorrounded by the larger molecule called the chelator
Chelated micronutrients are essential mineral elements which is chemically bound to organic molecules called chelating agents. This forms a stable complex in which the chelating agent surrounds and protects the micronutrient, preventing it from reacting with other substances or becoming unavailable for uptake. Chelating agents commonly used for micronutrient chelation include ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), citric acid, etc. Chelation improves the solubility and stability of micronutrients, making them more accessible for absorption by plants. It enhances their availability in soil.
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