what is chelated iron
Iron chelate. From Wikipedia, the free encyclopedia. Iron chelate, also known as chelated iron, is a soluble complex of iron, sodium and a chelating agent such as ethylenediaminetetraacetate (EDTA), EDDHA, or others, used to make the iron soluble in water and, for the purposes of agriculture, accessible to plants.ron chelate, commonly present as FeEDTA(Ferric Ethylenediaminetetraacetic Acid), is also used to control broadleaf weeds in lawns. There are a few weeds that are not damaged by FeEDTA and users will likely need a traditional herbicide to accomplish the task.