G & E Fertilizers
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NPK Fertilizer

Controlled-Release Fertilizer Supplier

Wholesale supply of Controlled-Release Fertilizer (CRF) for importers, distributors, cooperatives and institutional buyers. Trusted sourcing, global delivery and complete export documentation.

  • Coated NPK gradesComposition
  • Granular, polymer-coatedAppearance

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Wholesale & institutional orders only — no retail sales

Call Sales: +1 (306) 993-2507

Next step: add your company details to receive the offer.

  • Wholesale SupplyB2B only
  • Multiple OriginsEurope, China
  • LCL & FCLShipments
  • SGS / IntertekInspection on request

Reliable Global Supply of Controlled-Release Fertilizer (CRF)

We supply controlled-release fertilizer (CRF) — polymer-coated or resin-coated NPK granules that meter nutrient release over defined periods — to importers, distributors, nursery and greenhouse suppliers, turf management companies, and high-value crop producers worldwide. CRF reduces application frequency, minimises nutrient leaching, and improves nitrogen use efficiency compared to conventional granular fertilizers. Available in a range of NPK grades and release durations from approved producers in Europe, China, and other verified origins.

Wholesale supply only

We supply business buyers only — no retail sales. Orders ship as LCL or FCL.

Read the full Controlled-Release Fertilizer (CRF) product overview

Controlled-release fertilizers work by encapsulating individual NPK granules in a semi-permeable polymer or resin coating. Soil moisture and temperature drive a slow, diffusion-controlled release of nutrients from the coated granule over a pre-defined period, typically ranging from 2–3 months (short-duration CRF) to 8–12+ months (long-duration CRF for plantation and landscape use). This release profile closely matches crop nutrient demand curves, significantly reducing leaching losses, volatilisation, and the number of applications required over the growing season.

Common CRF grade families include balanced NPK (e.g. 15-9-12+2MgO, 16-8-12, 19-6-12) and high-K formulations for fruit development (e.g. 12-6-18, 11-5-19). Release duration designations (typically 2M, 3M, 5M, 8M, 12M, 16M corresponding to months at 25°C soil temperature) allow agronomists to match the product to the crop cycle and local climate. CRF is extensively used in container nurseries, landscape and turf, golf course management, annual and perennial horticulture, and precision row-crop programs where a single basal application replaces multiple split applications.

We source CRF from polymer-coating facilities with established quality management systems in Europe and China. Coating integrity, release duration confirmation, and nutrient content are verified from producer technical documentation. We can assist buyers in selecting the most appropriate grade and release duration for their crop and climate.

Current Supply Overview

  • Europe
    Packaging
    25 kg / 1 MT
    Shipment
    LCL / FCL
    Availability
    Subject to current supply
  • China
    Packaging
    25 kg / 1 MT
    Shipment
    LCL / FCL
    Availability
    Subject to current supply
  • Other approved origins, depending on product and compliance — on request.

Origin, availability and shipment window are confirmed in each commercial offer.

Typical Specifications

Request Full Technical Sheet
Typical specifications of Controlled-Release Fertilizer (CRF)
Typical NPK grades available15-9-12+2MgO, 16-8-12, 19-6-12, 12-6-18, others
Total nutrients (N+P₂O₅+K₂O) typical30–40% (varies by grade)
Release duration at 25°C soil temp.2, 3, 5, 8, 12, 16 months (grade-dependent)
Coating materialPolyolefin / resin polymer (sulphur-coated grades also available)
Granule size2–4 mm (90% min. on screen)
Moisture max.0.5%
Coating integrity≥ 95% intact granules (typical QC standard)
AppearanceSmooth polymer-coated granules (colour varies by grade/origin)
Packaging25 kg bags, 1 MT big bags
HS Code3105.90

Specifications shown are typical and may vary by origin. Final specifications are confirmed against the producer's Certificate of Analysis (COA).

Packaging Options

Controll50 kgControll50 kgControll50 kgControll1 MT FIBC
  • 25 kg PP/BOPP bags
  • 1 MT (1,000 kg) jumbo / FIBC big bags
  • Containerised shipment (20ft / 40ft)
  • Private label / custom packaging (subject to MOQ and origin)

Shipping & Logistics

Cargo container ship at sea
  • Part-container loads (LCL) for smaller orders
  • Full 20ft & 40ft container loads (FCL)
  • FOB, CFR and CIF terms
  • Competitive freight rates
  • Delivery to major destination ports
  • Shipping coordination and tracking
Packaging & shipment detailsFOB vs CIF: a buyer's guide to Incoterms

Supply Origins

Controlled-Release Fertilizer (CRF) is sourced from approved producers in these origins, matched to price, availability and your destination.

All fertilizer sourcing origins

Applications

  • Container nursery and ornamental plant production
  • Golf course and sports turf establishment and maintenance
  • Landscape and amenity planting (street trees, parks)
  • High-value fruit and vegetable crops requiring reduced application frequency
  • Plantation establishment (avocado, macadamia, coffee, oil palm transplants)
  • Precision row-crop production programs with single basal application

How to Procure Controlled-Release Fertilizer (CRF) from G & E Fertilizers

A simple and transparent process for international buyers.

  1. 01

    Send Requirement

    Product, quantity, destination and preferred terms.

  2. 02

    Receive Commercial Offer

    Origin, price, Incoterm, offer validity and estimated shipment.

  3. 03

    Confirm Specifications

    COA, inspection requirements, packaging and documentation.

  4. 04

    Contract & Shipment

    Commercial documents, loading and global delivery support.

Buyer guides

Send Your Requirement

Documents & Compliance

Standard document set supplied with Controlled-Release Fertilizer (CRF) shipments.

  • Commercial Invoice
  • Packing List
  • Certificate of Origin
  • Certificate of Analysis (COA)
  • Bill of Lading
  • Inspection Certificate

Also where applicable: Technical Data Sheet (TDS) with release curve and application guidance · MSDS / Safety Data Sheet (where applicable) · Import documentation support depending on destination

Fumigation, phytosanitary and other destination-specific documents are arranged as your import rules require.

Export documentation explained

Quality You Can Trust

SGS and Intertek inspection can be arranged before shipment. We support specification verification, producer documentation and trade compliance requirements.

Learn About Our Quality Process

Frequently Asked Questions

What NPK grades and release durations are available?
We can source a range of CRF grades including 15-9-12+2MgO, 16-8-12, 19-6-12, 12-6-18, and others, in release durations of 2, 3, 5, 8, 12, and 16 months at 25°C. The available grades and durations depend on origin and production schedules. Please share your crop, climate, and target application program when enquiring.
What is the MOQ for controlled-release fertilizer?
Orders can ship LCL (part-container load) or as full 20ft containers (FCL) of roughly 20–25 MT per grade. MOQ for specific grades may be higher (50–100 MT) if not a standard production run. We can advise on consolidating multiple grades into a single container where volumes allow.
How is release duration measured and verified?
Release duration is typically measured as the time required for 75–80% of the nutrients to be released in controlled temperature water or incubation tests at 25°C. Producers provide release curve data in their TDS. Independent verification of release rate can be arranged through laboratory testing at buyer request.
Is CRF suitable for drip irrigation or fertigation?
Controlled-release fertilizers are designed for soil or substrate incorporation, not dissolution in water. They are not suitable for drip irrigation injection. For fertigation programs, water-soluble NPK fertilizers are the appropriate product. We can supply both CRF and water-soluble grades depending on your application requirement.
What origins do you source CRF from?
We source from polymer-coating facilities in Europe and China. European CRF products often carry additional environmental and performance certifications. Chinese CRF is cost-competitive with established quality for the grades commonly traded in international horticulture markets. Origin is confirmed at the time of quotation.
What documentation comes with CRF shipments?
Every shipment includes a Commercial Invoice, Packing List, Certificate of Origin, Certificate of Analysis, Technical Data Sheet (with release curve data and application guidance), and Bill of Lading. Independent inspection certificate and MSDS are available on request.

Product availability, pricing, origin, documentation, and shipment terms are subject to supplier confirmation, destination regulations, sanctions screening, and contract agreement.

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Get a Competitive Offer for Controlled-Release Fertilizer (CRF) Today

Reliable supply. Multiple origins. Global delivery. Wholesale only.

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