Medium Long-Controlled-Release NPK Fertilizer (90-Day )
Stable 90-Day Polymer-Coated Nutrient Release for High-Efficiency, Long-Term Crop Nutrition


Medium Long-Term CR (90 Days)
N–P₂O₅–K₂O: Balanced NPK with polymer coating for 90-day steady release.
Appearance: Uniform, free-flowing granules for easy application.
Granule Size: 2–4 mm for even spreading.
- Release: Nutrients release steadily over 90 days, reducing losses.
Medium Long-Term CR (90 Days) Detailed Specifications
Terafon® 90-Day Controlled-Release NPK is developed to provide stable, predictable nutrient release that matches plant growth curves across a wide range of cropping systems. Its polymer coating regulates diffusion based on soil temperature and moisture, supplying essential nutrients gradually and efficiently. This controlled delivery reduces fertilizer waste, enhances root-zone nutrient availability, and minimizes labor associated with multiple fertilization events. The product is especially suited for crops requiring consistent nutritional support over 2–3 months.
Technical Specifications
| Parameter | Typical Value / Description |
|---|---|
| N–P₂O₅–K₂O Formulations | 10-10-10, 15-5-20, 19-6-3, 20-20-20, or custom NPK ratios |
| Release Duration | ~90 days (temperature-dependent controlled release) |
| Coating Type | Polymer-coated controlled-release granules (PCF/PCU technology) |
| Granule Size | 2–4 mm uniform granules |
| Moisture Content | ≤ 1.5–2.5% (low-moisture formulation for better storage stability) |
| Bulk Density | 1.1–1.4 g/cm³ |
| Micronutrients (Optional) | S, Mg, Ca, Fe, Mn, Zn, Cu, B, Mo depending on crop needs |
| Appearance | Uniform, free-flowing coated granules |
| Packaging | 25 kg / 50 kg PP bags; 500–1,000 kg jumbo bags |
| Storage Conditions | Keep dry, cool, ventilated; avoid prolonged moisture to maintain coating integrity |
Product Highlights
90-Day Controlled Release Fertilizer — temperature-responsive nutrient diffusion aligned with crop demand.
Balanced NPK Formulations — available in standard blends such as 14-14-14, 15-15-15, 16-8-24, or fully customized ratios.
Advanced Polymer Coating — enhances durability, minimizes nutrient loss, and ensures uniform feeding.
Consistent Granule Size (2–4 mm) — ensures accurate spreading, uniform nutrient delivery, and improved field performance.
Higher Nutrient Use Efficiency (NUE) — reduces leaching, volatilization, and runoff compared with water-soluble fertilizers.
- Ideal for Professional Agriculture — greenhouse, nursery, horticulture crops, vegetables, fruiting crops, and landscape plants.
Key Agronomic Advantages
Continuous 3-Month Feeding: A single application provides consistent nutrient availability for ~90 days, reducing labor and maintaining steady vegetative and reproductive growth.
Enhanced Nutrient Use Efficiency: Controlled release minimizes leaching and volatilization, improving fertilizer ROI and supporting more sustainable nutrient management.
Uniform Growth & Better Crop Quality: Stable NPK supply promotes even canopy development, stronger root systems, improved fruit set, and increased overall crop uniformity.
Suitability for Diverse Crops: Ideal for greenhouse crops, nursery plants, fruiting vegetables, perennial ornamentals, berries, turf, and landscaping applications.
- Supports Sustainable Farming Practices: Reduced application frequency, lower nutrient losses, and improved soil-environment interaction make it suitable for eco-focused growers.
Recommended Applications
Greenhouse & Nursery Production: Ensures consistent nutrition in controlled environments and potting media.
Vegetables & Fruiting Crops: Tomatoes, peppers, melons, and mid-season vegetables needing stable nutrient supply.
Ornamentals & Landscape Plants: Shrubs, ornamentals, perennials, and flowering plants.
- Specialty Crops: Berry crops, turfgrass, and horticultural crops benefiting from extended nutrient availability.
Application Guidelines
Perform soil or substrate testing to determine crop nutrient demand.
Apply at planting or early growth for best synchronization with the crop cycle.
Broadcast, band, or mix into media, depending on cropping system.
Irrigate after application to activate controlled nutrient diffusion.
- Adjust application rates according to crop species, soil fertility, and growth targets.
Packaging & Storage
Packaging: 25 kg / 50 kg woven PP bags, 500–1,000 kg jumbo bags
Storage: Store in a cool, dry, ventilated warehouse; protect from moisture and direct sunlight
- Shelf Life: Stable under proper storage; anti-caking treated for long-term handling
Packaging & Storage
Optimized for Long, Steady Crop Development
Reduces Nutrient Fluctuation in Root Zones
Enhances Operational Efficiency for Large-Scale Growers
Adaptable to Diverse Cultivation Systems
A Reliable Solution for Sustainable Nutrient Programs
By minimizing nutrient losses and improving nutrient use efficiency, Terafon® Medium Long-Term CR (90 Days) aligns with modern sustainable agriculture goals while maintaining high productivity and crop quality.
Why Choose Terafon for Your Fertilizer Needs
90-Day Controlled Release for Extended Crop Cycles
Terafon 90-Day CR NPK Fertilizer provides balanced coated nutrients with a steady release pattern designed to support longer crop cycles efficiently.
Uniform Granules & Reliable Nutrient Delivery
Granules sized 2–4 mm offer smooth handling and even field coverage, ensuring consistent nutrient supply for base dressing, top-dressing, or fertigation.
Quality Assurance & Improved Soil Performance
Strict production control ensures low moisture, minimal impurities, excellent storage stability, reduced caking, and long-term improvements in soil structure.
Proven Efficiency for Sustainable Agriculture
Trusted by growers worldwide, this 90-day CR NPK solution supports high-efficiency and sustainable nutrition for vegetables, fruits, field crops, and orchards.
Optimize Your Crop Nutrition with Terafon
Contact us today to discover how Terafon’s high-quality fertilizers—including urea, coated urea, NPK, water-soluble, liquid, and humic acid—can boost soil fertility, enhance crop growth, and support sustainable agriculture.









