angricultural grade ammonium sulfate white granular 2-5mm fertilizer

Granular 21% Ammonium Sulphate  Ammonium sulphate is one of the most widely used nitrogen fertilizers.  Ammonium sulphate  provides an equal balance of nitrogen and sulphur and can make crops thrive and improve fruit quality and yield and  also strengthen resistance to disaster .  Ammonium sulphate is the best fast releasing, quick acting and  can be used directly for a wide range of soil and crops, and also as seed fertilizers, base fertilizer and additional fertilizer.    2)Specifications:  Nitrogen:21%min   Moisture:1.0max   

Item	Supreme grade	First grade	Qualified grade
Appearance	no visible mechanical impurity	no visible mechanical impurity	no visible mechanical impurity
N content(dry basis),%       ≥	21.0	20.8	20.5
Water content(H2O),%         ≤	0.5	0.7	1.0
Free acid(H2SO4)content,%    ≤	0.03	0.05	0.20
Fe content, %                 ≤	0.007	-	-
As content,%                  ≤	0.00005	-	-
Heavy metal(Pb)content,%    ≤	0.005	-	-
Water insolubles,%            ≤	0.01	-	-

  Packaging & Shipping   25kg/pp bag, 50kg/ pp bag, 1000kg / jumbo bag ,1200kg/jumbo bag