FERUS 4.8 Fe It is an effective Iron fertilizer in soils with high pH to meet the Iron (Fe) needs of plants. Chelated with high chemical quality ortho-ortho EDDHA. EC FERTILIZER FERUS 4.8 GUARANTEED CONTENT (w/w) Water Soluble Iron (Fe) %6 EDDHA Chelated Iron (Fe) %6 Ortho-ortho EDDHA Chelated Iron (Fe) 4.8% Ortho-para EDDHA Chelated Iron (Fe) %1.2