Low Price Nitrogen Fertilizer 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 |
- |
- |
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