Potassium Sulphate 
An inorganic source of potassium, having the chemical formula of K2SO4, which is good for making your own fertiliser mixes. It contains 42% potassium (50% potash).
Potassium Sulphate
An inorganic source of potassium, having the chemical formula of K2SO4, which is good for making your own fertiliser mixes. It contains 42% potassium (50% potash).