China 90~180days Coated NPK 14-14-14+1.5(MgO) Controlled Release Fertilizer factory and suppliers

90~180days Coated NPK 14-14-14+1.5(MgO) Controlled Release Fertilizer

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Polymer Coated NPK 14-14-14 with Magnesium – Controlled-Release Horticulture Fertilizer

Polymer Coated NPK 14-14-14 with 1.5 percent MgO provides balanced nutrition for horticulture, flowers, and nursery plants. Designed for 90 to 180 days controlled release, its polymer coating ensures gradual nutrient delivery synchronized with plant growth cycles. The 14-14-14 NPK ratio supports all development stages while 1.5 percent magnesium oxide enhances chlorophyll synthesis and photosynthesis efficiency. Ideal for container production and nursery beds, this formula reduces leaching by 65 percent and salt stress by 40 percent compared to conventional fertilizers. Uniform 2.5-4.0 mm granules allow even distribution in potting mixes and field applications. Suitable for single-season use in flowering plants, bedding crops, and young transplants, it eliminates frequent top-dressing and cuts labor costs by 35 percent. Customizable release durations (90/120/150/180 days) accommodate specific crop cycles. Optimize plant vigor and bloom quality with this reliable bulk fertilizer solution for professional horticulture.

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POLYMER COATED NPK 14-14-14 + 1.5% MgO – BULK HORTICULTURE GRADE

Balanced Controlled-Release Fertilizer | Duration: 90-180 Days

TECHNICAL SPECIFICATIONS

Total Nitrogen (N): 14 percent
Available Phosphate (P2O5): 14 percent
Soluble Potash (K2O): 14 percent
Magnesium Oxide (MgO): 1.5 percent
Granule Size: 2.5-4.0 mm spherical prills
Coating Material: Semi-permeable polymer resin
Release Mechanism: Soil moisture and temperature dependent
Release Duration Options: 90, 120, 150, 180 days
Bulk Packaging: 800 kg Big Bags, Hopper Trucks

KEY BENEFITS
1. Complete Balanced Nutrition
14-14-14 NPK ratio supports root development, foliage growth, and flowering.

2. Magnesium Enhancement
1.5 percent MgO prevents interveinal chlorosis in high-demand plants.

3. Leaching Reduction
Polymer coating decreases nutrient runoff by 65 percent in container production.

4. Salt Index Management
30 percent lower salt index than conventional NPK protects young roots.

5. Cost Efficiency
Single application covers 3-6 month crop cycles, reducing labor by 35 percent.

RECOMMENDED APPLICATIONS

Crop Category	Ideal Duration	Application Rate
Bedding Flowers	90-120 days	4-6 kg per m³ potting mix
Nursery Seedlings	90 days	3-4 kg per m³ potting mix
Foliage Plants	120-150 days	5-7 kg per m³ potting mix
Perennial Ornamentals	150-180 days	600-800 kg per hectare

COMPATIBILITY & USAGE

Pre-blended formula; requires no additional supplements.
Compatible with all common potting media including peat, coco coir, and bark.
Apply at planting: Incorporate evenly into growing medium or broadcast in field nurseries.

STORAGE & HANDLING

Shelf Life: 24 months in dry, cool conditions below 30 degrees Celsius.
Moisture Sensitivity: Keep sealed during storage to prevent premature nutrient release.
Bulk Transfer: Use enclosed conveyor systems to minimize dust generation.

ORDERING PARAMETERS
Specify:

Release duration: 90, 120, 150, or 180 days
Packaging format: Big Bags (800 kg) or Bulk Trucks (20 MT minimum)
Quantity required (Metric Tons)

QUALITY ASSURANCE

Heavy Metal Compliance: Below 10 ppm cadmium, 50 ppm lead (EU Fertilizer Regulation limits).
Granule Integrity: Less than 1 percent dust formation during handling.
Release Accuracy: Plus or minus 10 percent variance from stated duration at 25 degrees Celsius.

SAFETY INFORMATION

Personal Protection: Wear dust masks and gloves during bulk handling.
Environmental Note: Coating is biodegradable under soil conditions within 24 months.

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