Potassium Nitrate 13:00:45 provides 45% K₂O and 13% nitrate nitrogen — completely chloride-free. The standard maturation fertilizer for table grapes, pomegranate, mango and all export-quality horticultural crops worldwide.
The K-NO₃ synergistic uptake effect: potassium creates an electrochemical gradient that actively drives nitrate absorption, improving overall nitrogen use efficiency (NUE) and reducing nitrogen leaching losses.
Key agronomic effects at maturation: significantly improves Brix (sugar content), enhances skin and flesh colour development, improves fruit firmness and reduces post-harvest decay, increases potassium in grains (important for export quality). Also the standard potassium source in hydroponic nutrient solutions due to high purity and complete solubility.
| Nitrogen (N) — Nitrate form | 13.0% min |
| Potassium (K₂O) | 45.0% min |
| Chloride (Cl) | <0.01% |
| Sodium (Na) | <0.01% |
| Moisture | 0.3% max |
| pH (1% solution) | 7.0–8.0 |
| Water Solubility | ≥316 g/L at 20°C |
| Colour | White crystalline granules |
| Drip Fertigation | 4–8 kg per acre per application |
| Foliar Spray | 4–6 g per litre |
| Maturation Stage | Apply every 7–10 days for 4–6 weeks |
| Brix Programme (Grapes) | 8–10 kg/acre per application at veraison |
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