Chelated Magnesium 6% EDTA is part of the chlorophyll in green plants and essentials for photosynthesis. it also helps activate many plant enzymes needed for growth. Chelated Magnesium 6% EDTA is essential for root & shoots growth of plant. Chelated Magnesium 6% EDTA in part of the Chlorophyll in all green plants & essentials for photosynthesis. It also helps activate many plant enzymes needs for growth.