potassium magnesium sulphate,organic plant food *K2O:24% , Mg:6%, *S:17% , Cl:2% *H2O: ... :7.0~9.0 *whate soluble potassium magnesium sulphate,organic plant food Specification: Element Specification Results of Inspection K2O 24% 24 ... in salt lake, 100% solution, It can provide the necessary nutrient which are potassium, magnesium, sulfur and boron in the growth ...