... 110 g/L (20°C) 2.use :(1)Used for drugs (such as laxatives), fertilizer (about 50% potassium, potassium is a ... soils and should pay attention: first, in acid soil, the excess of acid sulfate soils will increase, and even increased activity ... generated hydrogen sulfide, so that victims of black roots. Therefore, the long-term use of potassium sulfate with the manure, alkaline phosphate and lime ...