... common use and most typical inorganic nitrogen fertilizer. Ammonium Sulphate is the best fast release, quick acting fertilizer ... Metal≤ 0.005%AppearanceWhite GranularsAmmonium Sulphate is very popular in Japan, Southeast Asia, as well as northeast China ... has more efficiency than urea, ammonium bicarbonate, ammonium chloride, ammonium nitrate etc. Large granular Ammonium Sulphate can also serve as raw ...