Complaint
| Item | Standard Value |
| Product Name | SOP Potassium Fertilizer |
| Appearance | White Powder |
| Water Soluble | 100% |
| Water Soluble K2O | 50% |
| Sulfur (S) Content | 17.2% |
| Free Acid (H2SO4) | 1.0% |
| Moisture | 0.8% |
| Chloride (Cl) | 0.85% |
| Calcium (Ca) | 0.07% |
| Iron (Fe) | 0.07% |
| Plumbum (Pb) | 0.05% |
| PH Value | 3-5 |
K2SO4, commonly referred to as sulfate of potash, or SOP. Sulfate of Potash Granular is a 0-0-50 white granule that provides 50% potash and 17% sulfur to crops.The fertilizer contains S and hence this becomes an ideal fertilizer to deliver a combination of Potash and S.
Potassium sulfate is an excellent source of K nutrition for plants. The K portion of the K2SO4 is no different from other common potash fertilizers. However, it also supplies a valuable source of S, which protein synthesis and enzyme function require. Like K, S can also be too deficient for adequate plant growth. Further, Cl- additions should be avoided in certain soils and crops. In such cases, K2SO4 makes a very suitable K source.
