Long-Term-Controlled-Release NPK Fertilizer (120-Day )

Long-Term-Controlled-Release NPK Fertilizer (120-Day )

  • N–P₂O₅–K₂O:Balanced NPK with polymer coating for 120-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.
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Description

Long-Term CR NPK (120 Days) Detailed Specifications

DONGKWANG Long-Term CR NPK (120 Days) is a high-performance polymer-coated controlled-release fertilizer engineered to deliver a stable, temperature-responsive nutrient release for approximately 120 days. Its advanced coating technology minimizes nutrient losses, enhances nutrient-use efficiency, and supports long-season crop growth with a single application—ideal for orchards, vineyards, greenhouse crops, nursery stock, turfgrass, and high-value horticulture.

This long-term formulation ensures consistent NPK availability in the root zone, promoting uniform growth, stronger root development, and optimized yield performance while reducing labor, environmental risk, and total fertilizer input.

Technical Specifications

Parameter Specification
N–P₂O₅–K₂O Ratios 12-6-36, 18-4-6, 20-10-10 or customized
Release Duration ~120 days (soil temperature dependent)
Coating Technology Temperature-responsive polymer-coated granules
Granule Size 2–4 mm uniform granules
Moisture Content ≤ 2.0% (typical)
Optional Nutrients S, Mg, Ca + trace elements (Fe, Mn, Zn, Cu, B, Mo)
Bulk Density 1.10–1.40 g/cm³ (formula dependent)
Packaging 25 kg / 50 kg PP bags; 500–1,000 kg jumbo bags
Storage Conditions Cool, dry, ventilated; avoid moisture and direct sunlight

Key Features & Agronomic Advantages

  • 120-Day Controlled Release: Predictable, sustained release curve aligned with crop uptake to support long-cycle crop development.

  • High-Efficiency Polymer Coating: Temperature-responsive diffusion reduces leaching, volatilization, and runoff for higher nutrient-use efficiency (NUE).

  • Balanced Nutrient Delivery: Available in precise NPK ratios such as 14-14-14, 15-15-15, 16-8-24, 20-20-20, with optional secondary and micronutrients.

  • Uniform Granule Size (2–4 mm): Ensures accurate broadcasting, banding, or incorporation with consistent nutrient distribution.

  • Enhanced Crop Performance: Promotes continuous vegetative growth, optimized fruiting, and improved root vigor over the entire season.

  • Reduced Labor & Inputs: Single-application fertilization lowers operational cost and supports sustainable farming practices.

  • Orchards & Vineyards: Long-season fruit trees, grapes, citrus

  • Greenhouse & Nursery: Container plants, ornamentals, landscape plants

  • Field Crops (Long Cycle):Oilseeds, cereals, specialty crops

  • Turf & Sports Fields: Season-long nutrient maintenance

  • High-Value Horticulture:Berries, perennials, long-term vegetables

Application Guidelines

  • Conduct soil analysis before application to determine baseline nutrient demand.

  • Apply at planting or early development for best season-long performance.

  • Light irrigation after application improves coating activation.

  • In warm climates, anticipate slightly accelerated release—adjust timing accordingly.

  • Usually one application per season is sufficient; supplement only if tissue analysis indicates deficiency.

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

Why Choose DONGKWANG Long-Term CR NPK (120 Days)

Season-Long Nutrition with Minimal Intervention

DONGKWANG Long-Term CR NPK (120 Days) is formulated for growers seeking reliable, uninterrupted nutrient supply across an entire growing season, reducing the need for split applications and corrective feeding.

Precision-Driven Nutrient Management

Its long-duration controlled-release profile supports accurate nutrient planning, helping growers maintain consistent crop performance while avoiding over-fertilization and nutrient imbalance.

Designed for Permanent & High-Value Crops

Particularly well-suited for orchards, vineyards, turf, and perennial systems, this 120-day controlled-release NPK fertilizer supports steady root activity and uniform canopy development over extended crop cycles.

Improves Cost Efficiency at Farm Scale

By lowering labor requirements, minimizing nutrient loss, and optimizing fertilizer ROI, DONGKWANG Long-Term CR NPK (120 Days) helps commercial producers improve overall input efficiency.

Supports Environmentally Responsible Fertilization

Reduced leaching and runoff make this long-term controlled-release fertilizer an effective solution for sustainable nutrient programs and compliance-focused agricultural operations.

Trusted DONGKWANG Quality for Professional Agriculture

Backed by strict quality control and consistent granule performance, DONGKWANG Long-Term CR NPK (120 Days) delivers dependable results in demanding cultivation environments worldwide.

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