Ultrasol® micro Rexene® FeQ48 is a product developed for the correction and prevention of Iron deficiency in a wide range of agricultural and horticultural crops, particularly in alkaline and calcareous soil conditions, as it has 4.8% Iron as ortho-ortho isomer, which is the most effective isomer in terms of binding strength. Ultrasol® micro Rexene® FeQ48 has as chelating agent EDDHA as a richness of 6.0% of which 4.8% is in ortho-ortho position. Ultrasol® micro Rexene® FeQ48 is a stable product and keeps iron available in a soil pH range of 3.5 to 12.