25kg IRON SULPHATE 50% stronger than heptahydrate; moss control lawn tonic 30%Fe
Ferrous Sulphate Monohydrate Contains The Most Amount Of Iron (Fe+>30%) Compared To Other Forms Of Ferrous Sulphate. 25kg SULPHATE OF IRON. Use Iron Sulphate as a Lawn Tonic and to Kill Moss. FERROUS SULPHATE MONOHYDRATE FeSO40>30%.