potassium magnesium sulphate,organic plant food *K2O:24% , Mg:6%, *S:17% , ... Cl:2% *H2O:0.8% PH:7.0~9.0 *whate soluble potassium ... magnesium sulphate,organic plant food Specification: Element Specification Results of Inspection ... , It can provide the necessary nutrient which are potassium, magnesium, sulfur and boron in the growth of ...