20-20-20 Controlled-Release Fertilizer
NPK 20-20-20 Controlled Release Fertilizer
20-20-20 Controlled-Release Fertilizer
| Product Name: | NPK 20-20-20 Slow-release fertilizer |
| Category: | Controlled-Release Fertilizer – Products |
| Nutrient Composition: | Total N – 20%, P₂O₅ – 20%, K₂O – 20% |
| Coating Technology: | Temperature-activated polymer |
| Release Duration: | 60 – 120 days days (temperature-dependent) |
| Granule Size: | 2–4 mm (uniform and round) |
| Secondary Nutrients: | Sulfur (4–8%), Micronutrients (Fe, Mn, Zn, Cu, B) available on request |
| Payment Terms: | T/T, L/C, cash(USD, EUR, RMB) |
| Certificate: | ISO 22241-1, ISO 9001 standard. |
20% Nitrogen
Total nitrogen 20% (N) of which 6% nitrate nitrogen and 14% ammonium nitrogen (optional)
20% Phosphorus
Total Phosphorus 20% (P) Diammonium phosphate 12%, monoammonium phosphate 6%, calcium superphosphate 2% (optional)
20% Potassium
Total Potassium 14% (K) Potassium Sulfate / Potassium Chloride (optional, prices vary)
Other Elements
Sulfur (5–9%), Micronutrients (Fe, Mn, Zn, Cu, B) available on request ...
20-20-20 Controlled-Release Fertilizer Description
Risso® 20‑20‑20 Controlled‑Release Fertilizer (CRF) is a premium-grade, fully encapsulated NPK fertilizer, providing an equal ratio of 20% Nitrogen (N), 20% Phosphorus (P₂O₅), and 20% Potassium (K₂O). Engineered with advanced polymer coating technology, this formulation ensures a consistent, temperature-responsive nutrient release over 60 to 120 days, supporting all critical crop growth stages.
Ideal for high-value crops, professional turf management, and ornamental production, Risso® 20‑20‑20 CRF enhances nutrient use efficiency, minimizes environmental losses, and supports sustainable, cost-effective fertilization programs.
Key Features & Agronomic Benefits
Balanced High-Analysis NPK (20‑20‑20):
Delivers complete macro-nutrient support for root establishment, vegetative growth, and reproductive development.Controlled-Release Technology:
Polymer-coated granules gradually release nutrients in response to soil temperature and moisture, preventing nutrient loss and ensuring consistent crop availability.Maximized Nutrient Use Efficiency (NUE):
Reduces nitrogen volatilization and phosphate fixation—boosting NUE by up to 50% over conventional fertilizers.Fewer Applications Required:
Extended release profile allows for single-application strategies, reducing labor and input frequency.Sustainable & Eco-Conscious:
Low chloride and heavy-metal content. Reduces nutrient runoff, protecting soil and water systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Total Nitrogen (N) | 20% |
| Available Phosphate (P₂O₅) | 20% (≥90% water-soluble) |
| Soluble Potash (K₂O) | 20% |
| Coating Type | Temperature-activated polymer |
| Granule Size | 2–4 mm (uniform and round) |
| Release Longevity | 60 / 90 / 120 days |
| Moisture Content | ≤ 2% |
| Chloride Content | Low (chloride-safe for sensitive crops) |
| Heavy Metals | Meets international safety standards |
Recommended Applications
Suitable For:
Vegetables (tomato, pepper, leafy greens)
Orchards and fruit crops
Turfgrass, sports fields, golf courses
Greenhouse ornamentals and nursery stock
Application Rates:
Field crops: 100–300 kg/ha (based on crop and soil analysis)
Turfgrass: 5–8 kg per 100 m²
Container media: 2–8 g per liter of growing substrate
Application Method:
Broadcast, band, or mix into growing media. Light irrigation after application initiates nutrient release.
Release Curve (Temperature-Dependent)
| Soil Temperature (°C) | Release Duration |
|---|---|
| 15°C | ~180 days |
| 20°C | ~150 days |
| 25°C | ~120 days |
| 30°C | ~90 days |
Controlled by diffusion through the polymer membrane, ensuring gradual and synchronized nutrient availability.
Packaging & Customization
Standard Pack Sizes: 9.5kg, 25 kg PE-lined woven bags, 500 kg jumbo bags
Custom Services: OEM/ODM labeling, tailored NPK ratios, coating duration, micronutrient enrichment, and color coding for granules
Certifications: ISO 9001, ISO 14001, REACH compliance; RoHS and heavy metal limits upon request
Shelf Life: 2 years under dry, ambient storage conditions
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Why Choose Risso 20-20-20 Controlled-Release Fertilizer
Risso® 20‑20‑20 Controlled-Release Fertilizer is crafted with advanced polymer coating technology, ensuring precise, temperature- and moisture-responsive nutrient release. This enhances nutrient use efficiency, supports balanced crop growth, and reduces losses from leaching and volatilization. Its uniform granules and consistent quality guarantee reliable performance across diverse crops and climates. Fewer applications save labor and costs, while low chloride and heavy metal content promote environmental safety. Backed by global field trials and expert agronomic support, Risso® 20‑20‑20 CRF is ideal for sustainable, high-yield farming.
