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NPK 15-5-20 90-Day Controlled-Release Fertilizer

Balanced, Long-Lasting Nutrition for Vegetables, Fruits, Field Crops, and Sustainable Agriculture

NPK 15-5-20 90-Day Controlled-Release Fertilizer​

Nitrogen (N) 15% – promotes vigorous vegetative growth and robust foliage.
Phosphorus Pentoxide (P₂O₅) 5% – supports early root establishment and flowering.
Potassium Oxide (K₂O) 20% – enhances stress tolerance, water regulation, and fruit quality.
90‑Day Controlled Release: Advanced polymer or sulfur-coated granules provide steady nutrient delivery over ~90 days, matching crop uptake and reducing the need for repeated applications.

NPK 15-5-20 90Day CR Fertilizer Detailed Specifications

Terafon® NPK 15‑5‑20 90‑Day Controlled-Release Fertilizer is a high-quality, polymer-coated NPK formulation designed for season-long crop nutrition. Its 15‑5‑20 nutrient ratio supports vigorous vegetative growth, strong root development, and improved fruiting performance. The controlled-release technology ensures synchronized nutrient availability, improving fertilizer efficiency and supporting sustainable agriculture practices.

Technical Specifications

ParameterTypical Value
N–P₂O₅–K₂O Composition15–5–20
Controlled-Release Duration~90 days (temperature & moisture dependent)
Coating SystemAdvanced polymer/sulfur-based controlled release
Granule Size2–4 mm, free-flowing
Moisture Content≤ 2.5%
Optional NutrientsS, Mg, Fe, Mn, Zn, Cu, B, Mo

Key Features & Agronomic Benefits

1. Balanced Whole-Cycle Nutrition

  • The 15‑5‑20 NPK ratio provides ample nitrogen for vegetative growth, phosphorus for root development, and high potassium to enhance fruiting, stress tolerance, and overall crop quality.

2. Long-Lasting Controlled Release

  • Polymer or sulfur-coated granules release nutrients steadily over ~90 days, reducing nutrient peaks and deficiencies while lowering labor and re-application frequency.

3. Improved Fertilizer Efficiency

  • Stable nutrient diffusion improves uptake efficiency, minimizes leaching and volatilization, and promotes environmentally sustainable fertilization practices.

4. Broad Crop Compatibility

  • Ideal for vegetables, fruits, field crops, orchards, ornamentals, and turfgrass, ensuring consistent growth and quality across multiple cultivation systems.

Application & Usage Guidelines

Application Methods

  • Pre-Plant Broadcast: Apply evenly before sowing or transplanting.
  • Band or Row Placement: Place near the root zone for optimal nutrient uptake.
  • Soil Incorporation: Suitable for nursery trays, raised beds, and containers.

Best Practices

  • Base fertilizer rates on soil tests and crop nutrient demand.
  • Apply prior to irrigation or rainfall to activate controlled-release nutrients.
  • Avoid mixing with incompatible chemicals during application.

Note: Additional fertilization is generally unnecessary during the 90-day release period.

  • Vegetables and leafy greens
  • Fruits and orchard crops
  • Field crops and cereals
  • Ornamentals and nursery plants
  • Lawns and turfgrass

Packaging & Storage

  • Packaging Options: 25 kg & 50 kg woven PP bags; 500–1,000 kg jumbo bags.
  • Storage Conditions: Cool, dry, ventilated warehouse; protect from moisture and direct sunlight.
  • Shelf Life: Anti-caking treated for long-term storage and handling stability.

Why Choose Terafon® NPK 15-5-20 90-Day CR Fertilizer?

  • Balanced, professional-grade NPK formulation for diverse crops
  • Reliable 90-day controlled nutrient release for season-long growth
  • Enhanced fertilizer efficiency and reduced environmental impact
  • Simplified crop nutrition management with fewer applications
  • Supports sustainable and high-yield agriculture

Terafon® NPK 15‑5‑20 90-Day Controlled-Release Fertilizer delivers precise, long-lasting nutrition to enhance crop vigor, yield, and quality across all growth stages.

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    Why Choose Terafon for Your Fertilizer Needs

    90-Day Controlled Release for Long-Term Crop Nutrition

    Terafon 90-Day CR NPK 15‑5‑20 Fertilizer delivers balanced coated nutrients with a steady release pattern to support extended crop cycles efficiently.

    Uniform Granules & Consistent Nutrient Delivery

    Granules sized 2–4 mm ensure smooth handling and even field coverage, providing uniform nutrient supply for pre-planting, top-dressing, or fertigation.

    High Quality & Soil-Enhancing Performance

    Strict production control maintains low moisture, minimal impurities, excellent storage stability, reduced caking, and long-term soil fertility improvement.

    Proven Efficiency for Sustainable Agriculture

    Trusted by growers, this 90-day CR NPK 15‑5‑20 fertilizer supports high-efficiency nutrition and sustainable growth for vegetables, fruits, field crops, and orchards.

    Optimize Your Crop Nutrition with Terafon NPK 15‑5‑20

    Contact us today to discover how Terafon’s 90-Day Controlled-Release NPK 15‑5‑20 fertilizer can provide balanced nutrients, enhance crop growth, improve soil fertility, and support sustainable agriculture.