Controlled & Slow Release Fertilizers
Controlled release products are bought by release curve, not by grade. Longevity is quoted at a reference soil temperature and shifts materially in warmer climates, so a 6-month product can exhaust in four. Coating technology also carries a regulatory dimension as biodegradability requirements tighten in several markets.
Commercial applications
- Container nursery and propagation production
- Turf, landscape and high-value perennial plantings
- Single-application programmes where re-entry is costly
- Nitrogen-loss reduction on leaching-prone soils
Who procures this
- Nurseries and propagation facilities
- Plantation and perennial crop estates
- Operations under nitrate-leaching regulation
Why it matters commercially
One incorporated application can cover a full production cycle, cutting labour and machinery cost.
Metered release reduces leaching and volatilisation losses where regulation or water cost makes them expensive.
A stated release curve lets the grower model nutrient availability against the crop demand curve.
What a complete RFQ specifies
Technical specification lines
- Longevity
- Months at a declared reference soil temperature, plus curve at site temperature
- Coating technology
- Polymer, resin, sulphur or hybrid; biodegradability status
- Release profile
- Percentage released at 7, 30, 90 days under standard test
- Physical integrity
- Coating damage tolerance in blending, transport and incorporation
- Grade
- N-P-K plus micronutrient inclusion where required
Typical project sizes
- Commercial nursery
- 20 – 200 t / year
- Perennial estate
- 200 – 1,500 t / year
- Regional programme
- 3,000 t+ / year
Standards, registrations and certification
- EN 13266 / equivalent release-rate test methods
- EU coating biodegradability requirements where applicable
- ISO 9001 with lot-level release testing
- Destination-market fertilizer registration
Frequently asked questions
More in plant nutrition
The contract is between the manufacturer and the buyer. SeedMatchGroup is not a party to it.
SeedMatchGroup is an independent, supplier-neutral sourcing and introduction service. We do not manufacture, formulate, blend, register, certify, store, transport, apply, import, export or sell any fertilizer, crop-protection product, biological, seed, equipment or other input. Every supply agreement, price, warranty, specification, certificate of analysis, registration, label and delivery obligation is concluded and performed directly between the manufacturer or supplier and the buyer.
To the maximum extent permitted by applicable law, SeedMatchGroup, its affiliates, officers, agents and contractors give no warranty of any kind (express, implied or statutory) and accept no liability for any direct, indirect, incidental, consequential, punitive or commercial loss — including product defects, non-conforming consignments, rejected imports, residue exceedances, regulatory penalties, crop damage, delays or supplier insolvency — arising from any product, quotation, introduction or supplier relationship initiated through the platform. Claims must be pursued against the contracting manufacturer or supplier. Nothing on this page is legal or regulatory advice; buyers must verify current requirements with the competent authority in each relevant jurisdiction.
הודעה משפטית: SeedMatchGroup היא שירות רכש ותיווך עצמאי בלבד. איננו מייצרים, מפעילים, רושמים, מאשרים, מייבאים או מוכרים דשנים, תכשירי הגנת הצומח, תשומות או ציוד. ההתקשרות המסחרית נכרתת במישרין בין היצרן/הספק לבין הקונה, והם בלבד אחראים לאיכות המוצר, לרישום ולעמידה ברגולציה, לאספקה, להובלה ולתוצאה החקלאית. ככל המותר על פי דין, SeedMatchGroup אינה נותנת כל אחריות ואינה נושאת בכל חבות לנזק ישיר או עקיף, ותביעות יופנו לספק המתקשר בלבד. אין באמור ייעוץ משפטי או רגולטורי.
How this guidance is produced
We do not manufacture equipment and do not represent a fixed vendor list. Guidance reflects the project, not a catalogue.
Content is prepared and reviewed by sourcing specialists working on live commercial agriculture projects, supported by proprietary technology.
Practice drawn from greenhouse, CEA, irrigation, nursery, packing-house and processing projects across multiple climates and regulatory environments.
Project details stay private. Nothing is published, listed or shared with suppliers without your approval.
Editorial approach and company background: About SeedMatch Group.
What to do next
Most organizations move through these four steps in order. Each one can be started independently, and nothing is shared with suppliers until you approve the scope.
Turn your project scope into one supplier-neutral request qualified manufacturers can price consistently.
Site, water, energy, permits and documentation — the readiness work lenders and EPC contractors expect before quoting.
Debt, leasing, blended and export-credit structures for commercial agriculture CAPEX, assessed alongside the technical scope.
Supplier-neutral guidance on greenhouses, CEA, irrigation, nurseries, packing houses and project finance.