Product recommend——Ammonium sulfate (7783-20-2)

Ammoniumsulfate is an inorganic salt with a number of commercial uses. 

The most common use is as a soil fertilizer. 

It contains 21% nitrogen and 24% sulfur. 

The primary use of ammonium sulfate is as a fertilizer for alkaline soils. 

In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth.