Home / Roofert / Trace Elements / Calcium EDTA 13% Calcium EDTA 13% Calcium stimulates root and leaf development, and affects uptake and activity of other nutrients. Category: Trace Elements Tags: 1kg, calcium, edta Description Description Packaging: 1kg Related products Trace Elements Iron Fe EDDHA 6% 4.8 ortho-ortho For the correction of iron deficiency in crops and ornamentals growing in adversely alkaline soils and calcerous soils. Trace Elements Manganese EDTA 4.5% In plants, manganese is involved in chlorophyll synthesis and the activity of oxidase enzymes Trace Elements Zinc EDTA 14% Zinc aids in synthesis of plant-growth substances and enzyme systems, and is essential for promoting certain metabolic reactions, which are particularly critical in the early growth stages. Lion Iron EDDHA 6% 3.5 ortho-ortho