
SOP Soluble
Sulphate of potash (SOP)
Independ SOP™ is a high-purity, water-soluble sulphate of potash fertilizer containing 52–53% potassium oxide (K₂O) and 18% sulfur (S). Specially formulated for use in fertigation, foliar feeding, and NPK blending, Independ SOP™ is free of chlorides, low in sodium, and virtually free of heavy metals and insoluble residues.
Now packed in PE bags with anti-slip grip, it’s safer and easier to handle in the field or warehouse.
Independ SOP™ is ideal for chloride-sensitive crops such as:
- Vegetables (tomato, pepper, cucumber)
- Fruits (grape, citrus, banana, strawberry)
- Greenhouse and hydroponic crops
Benefits
- Improves fruit size, color, firmness and shelf life
- Enhances crop resistance to stress and disease
- 100% water-soluble — crystal-clear in solution
- Ideal for clean fertigation and foliar application
- Low EC and neutral pH (6–7)
Packaging
- Big Bags available on request
- 25 kg PE bags with anti-slip grip

| Element | Guaranteed |
|---|---|
| Color and appearance | White powder / crystallie |
| pH (1% solution) | 6-7 |
| Density | 1,45 – 1,65 g/cm3 |
| Potassium Oxide (K2O) | Min. 52% |
| Sulphur (S) | Min. 18% |
| Insoluble | Max. 0,1% |
| Solubility 20º water | 111 gr/L |