We can produce SOP(K2O 52% or K2O 50%), granular and powder. We can produce SOP(K2O50% or K2O52%) agriculture grade .Formula of potassium sulfate K2SO4, generally 50%, also contains about 18% of sulfur, sulfur is essential crop nutrients.Suitable for various crops, can be used as basal fertilizer, topdressing, types of fertilizer and foliar application. Basal amount of general acreage 10-12.5kg, ...