1.Ammonium sulphate N=21% 2.ammonium sulpahte used as fertilizer, textile, leather,medicine 3.ammonium sulpahte :SGS/ISO9000 Ammonium SulphateMain ... , can be used as kinds of seed fertilizers, base fertilizer and additional fertilizer. Particularly suitable for the soil which lack of sulfur ... sulfate(gypsum), caused by soil hardened, and should apply with organic fertilizer. Ammonium Sulphate