Potassium magnesium sulfate,bio organic fertilizer *K2O:24%,Mg:6%, ... 100% soluble water Potassium magnesium sulfate,bio organic fertilizer Specification: Element Specification Results of Inspection K2O ... processing,no any chemicals, 100% natural fertilizer.Compared with the traditional potassium sulfate, Potassium ... crop to form production element, vitamin, carbon water compounds, protein and fat.It can ...