NPK 15-15-15
NPK 15-15-15 Compound fertilizer
| Product Name: | Potassium sulfate compound fertilizer |
| Category: | NPK Compound Fertilizer – NPK Fertilizer |
| Technology: | Drum/High Tower |
| Trace Elements: | Zn/Fe/B/Mn,etc. |
| Appearance Color: | Customizable Granular |
| Specification: | 50kg per bag or customized |
| Payment Terms: | T/T, L/C, cash(USD, EUR, RMB) |
| Certificate: | ISO 22241-1, ISO 9001 standard. |
15% Nitrogen
Total nitrogen 15% (N) of which 7% nitrate nitrogen and 8% ammonium nitrogen (optional)
15% Phosphorus
Total Phosphorus 15% (P) Diammonium phosphate 7.5%, monoammonium phosphate 6.5%, calcium superphosphate 1% (optional)
15% Potassium
Total Potassium 15% (K) Potassium Sulfate / Potassium Chloride (optional, prices vary)
Other Elements
Trace elements are: Fe, Mn, Zn, Cu, Ca, B, Mo, Mg, S and other elements, the content of the maximum 4.2%...
NPK 15-15-15 Description
NPK 15-15-15+TE is a high-quality balanced compound fertilizer formulated with equal proportions of Nitrogen (N), Phosphorus (P₂O₅), and Potassium (K₂O), supplemented with optional trace elements (TE) such as Boron (B), Zinc (Zn), Iron (Fe), Manganese (Mn), and Copper (Cu). Produced using advanced granulation and quality-control technology, this fertilizer provides comprehensive nutrition throughout all crop growth stages, improving root vigor, vegetative growth, stress resistance, yield, and market quality.
Designed to meet the nutritional demands of modern agriculture, this formulation is widely used by professional growers and agricultural enterprises worldwide.
(Risso delivers reliable nutrition solutions suitable for a broad range of crops and cultivation systems.)
Technical Specifications
| Parameter | Specification |
|---|---|
| Total Nitrogen (N) | 15% |
| Available Phosphate (P₂O₅) | 15% |
| Soluble Potash (K₂O) | 15% |
| Trace Elements (TE) | Optional: Zn, B, Fe, Mn, Cu |
| Moisture | <3% |
| Appearance | Granular / Powder / Water-Soluble |
Exact TE composition and solubility options can be adjusted according to customer requirements.
Key Features & Agronomic Benefits
✔ Balanced N–P–K Ratio (15-15-15)
- Nitrogen (N): stimulates lush vegetative growth and chlorophyll formation
- Phosphorus (P₂O₅): enhances root development, early vigor, flowering, and fruit set
- Potassium (K₂O): increases plant health, stress tolerance, fruit quality, sugar content, and disease resistance
✔ Customizable Trace Elements (TE Options)
- Zn – improves enzyme activity and promotes internode growth
- B – supports pollen viability, fruit set, and sugar transport
- Fe/Mn/Cu – essential for chlorophyll synthesis and metabolic pathways
✔ Multiple Formulations Available
Granular for basal and topdressing applications
Fine powder or fully water-soluble options for fertigation and foliar systems
(Risso can customize nutrient ratios, solubility levels, and TE content on request.)
NPK 15-15-15 Applicable Crops
- Cereals & Vegetables: Supports high yield and overall growth.
- Fruits & Flowers: Enhances flower color and fruit quality.
- Forage Crops: Promotes healthy growth and better feed quality.
How to Use NPK 15-15-15 Fertilizer:
General Application:
Apply 1.5-2 kg of NPK 15-15-15 fertilizer per 100 m² of soil. Mix thoroughly into the soil before planting or apply as a top dressing during the growing season for optimal nutrition.Foliar Application:
For foliar feeding, dissolve 15-20 grams of NPK 15-15-15 in 1 liter of water and spray directly onto plant leaves. This method allows for fast nutrient absorption and is ideal for quick plant support.Hydroponic Use:
For hydroponic systems, dilute the fertilizer according to your plants’ specific nutrient requirements. Follow the recommended guidelines for each crop type to maximize growth and yield.
NPK 15-15-15 Packaging Specifications
- Small Bags (10kg, 25kg) – PP woven bags with PE liner for home gardening and small farms.
- Medium & Large Bags (40kg, 50kg) – Heavy-duty PP bags with UV protection for commercial farming.
- Bulk Bags (500kg, 1000kg FIBC) – Strong, anti-static woven bags for large-scale use.
- Custom Packaging – OEM branding and private labeling available.
Fertilizer Quality Assurance Certificates
FAQ
The TE-enhanced version includes micronutrients that improve crop metabolism, prevent deficiencies, and boost stress tolerance—especially beneficial for high-yield systems or TE-deficient soils.
Yes, but optimal dosage should be based on soil test results to prevent over- or under-fertilization.
Only the fully water-soluble formulation is recommended for foliar application; granular products are intended for soil use.
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✔ Quick & helpful reply within 6 hours.
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Why Choose Risso’s NPK 15-15-15 Fertilizer?
1. Scientifically Balanced Formulation: Designed based on crop nutrition research for stable performance across different soils and climates.
2. High & Consistent Quality: ISO-standard production ensures uniform granulation, low impurities, and reliable nutrient availability.
3. Efficient Nutrient Uptake: Premium raw materials improve absorption, reduce losses, and increase overall fertilizer efficiency.
4. Customizable TE & OEM Options: Risso provides flexible TE packages and customized formulations for specific crops and regional needs.
5. Proven Global Reliability: Widely used in international markets with strong field performance and customer satisfaction.
