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NPK 03-37-37 is a high-phosphorus and high-potassium fertilizer designed to enhance flowering, fruit setting, and crop ripening. Its low nitrogen content makes it ideal for later stages of plant development when phosphorus and potassium demand is high. This fertilizer is 100% water-soluble, environmentally safe, and leaves no harmful residues.
High phosphorus and potassium formula for flowering and fruiting
Fully water-soluble with no residue
Free from chlorine, sodium, and heavy metals
Ideal for fertigation and foliar application
Improves crop color, sugar content, and overall yield
Fruit-bearing crops: During flowering and fruit expansion
Vegetables & leafy greens: Boosting quality and resistance
Horticultural crops: Enhancing bloom strength and longevity
| Packaging Options | 9.5kg, 9.9kg, 25kg, 50kg, 1000kg jumbo bags |
| Container Load | 20FT container can load 25–27MT without pallet |
| Bag Customization | OEM printing and private label available |
Store in a cool, dry, and ventilated area
Avoid exposure to direct sunlight and moisture
Keep bags tightly sealed when not in use to preserve nutrient integrity
We support flexible OEM customization:
Branded Packaging: Retail or bulk designs with your logo and color
Multilingual Labels: For global distribution
Formula Adjustments: Micronutrients and NPK ratios tailored to local needs
Flexible Packing: From 100g to 1000kg, carton or woven bags
Pre-shipment Inspection: Support for third-party testing at your request
Over 20 years of experience in fertilizer production and international supply
Made with high-purity raw materials; green, safe, and residue-free
100% water soluble, free of chloride, sodium, and other harmful elements
Offers OEM packaging and flexible delivery to meet global buyer needs
Ideal for fertigation and foliar use, especially during fruit development stages
| Item | Standard |
| Product Name | NPK 03-37-37 Water Soluble Fertilizer |
| Total Nitrogen (N) % | 3% |
| Total Phosphate (P₂O₅) % | 37% |
| Total Potash (K₂O) % | 37% |
| Moisture % | ≤1% |
| Matter Insoluble in Water % | ≤0.5% |
| Appearance | Crystalline salt |
| Particle Size | 0.1–1.0 mm (92–97%) |
| Color | Customizable |
| Packaging | 9.5KG, 25KG, 50KG & OEM colored bag |
| CAS No. | 66455-26-3 |
| HS Code | 31052000 |
| EINECS No. | 233-140-8 |
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