Potassium magnesium sulfate,bio organic fertilizer *K2O:24%,Mg:6%, *S:17%,Cl:2% *H2O:0.8% PH:7.0~9. ... : Element Specification Results of Inspection K2O 24% 24%min Mg 6% 6%min S 14% 17%min Cl 3% 2%max H2O 4 ... , Potassium Magnesium Sulphate increased magnesium elements, greatly improving the crop’s photosynthesis.It can promote the crop of phosphorus absorption, and ...