Copper EDTA is a water-soluble metal chelate that is stable. It is mainly used for the agriculture and horticulture as micronutrient and macronutrient to prevent the copper deficiency. Copper is an essential secondary nutrient for normal plant development and growth is to provide structural support to the cell walls. If the copper is excess in plants then it is toxic to plants. Copper-deficient plants have been shown to respond promptly to chelated copper foliar spray. Copper EDTA contains copper metal chelated EDTA which is enriched in primary nutrients (NPK). Low availability in copper is generally recognized in acidic soil. Copper metals are useless to plants, but once it is dissolved in acidic conditions, then copper is easily enter in the plant. Under high pH level (alkaline) then copper becomes unavailable to plants. DEFICIENCY OF COPPER EDTA 14%: 1. In between veins, older leaves are chlorotic. 2. The first sign of a Cu shortage is withering and drooping mature leaves.
