Application: | Vegetables, Flowers, Fruit |
---|---|
Appearance: | Powder |
Infection on Soil: | Physiological Alkaline |
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ITEMS | Value | Standard |
1.Appearance | Black flake/ powder | Visual Inspection |
2.Moisture | < 5.0% | GB/T 8576 |
3.pH | 8.0-11.0 | NY/T 1973 |
4.Alginic Acid | ≥16% | NY/T 3174 (Sulfuric acid carbazole method) |
5.Organic matter | ≥40% | NY/T 1976 |
6.Nitrogen (N) | 1.00-3.00 % | NY/T 1977 |
Phosphorus (P2O5) 7. | 1.00-5.00 % | NY/T 1977 |
8.Potassium(K2O) | ≥16% | NY/T 1977 |