Controlled release fertilizers (CRF) are a precision technology that shows environmental benefits in comparison to conventional fertilizers. CRFs release nutrients over a longer period of time thanks to an innovative coating technology. The release pattern closely matches the needs of turfgrass throughout its entire growth cycle.
Benefits of using CRFs are:
- Often only one application is required, as nutrients are released in a controlled manner over a longer period of time, giving the turf grass all nutrients it need, exactly at the right time.
- The controlled release technology significantly reduces nutrient leaching to both soil and groundwater.
- Greenkeepers and turf managers can benefit from high quality turf while lowering the environmental foot print in comparison to conventional fertilizers.
- As such, CRFs are part of the solution in helping meet the future target to reduce nutrient losses in EU agriculture by 50 percent, as set out in the Farm to Fork Strategy, the Zero Pollution Action Plan, and EU Soil Strategy for 2030.
NEW: eqo.s technology
ICL’s latest sustainable innovation for its controlled release fertilizers is eqo.s release technology. A revolutionary, fully biodegradable coating technology for turfgrass that breaks down very quickly once all nutrients are released.
6 Brands found

Professional fertilizers and grass seeds for lawns and landscapes
Get greener, healthier, and more luscious lawns and landscapes with Landscaper Pro. A complete range, including grass seeds and fertilizers, both featuring state-of-the-art technologies. SmartStart™ grants outstanding seed germination and Poly-S® / Pace® coating technologies for controlled nutrient release grant the best fertilizer match to plant needs all year round. This is why Landscaper Pro is the go-to fertilizer in many countries around the world chosen by professional gardeners and landscapers. The fast, reliable and economical way to outstanding results. Lush green lawns, and gardens to impress with Landscaper Pro!
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High impact granular fertilizer for tees, surrounds, fairways, sportsfields and lawns
ProTurf gives you a unique combination of mineral and controlled-released nutrition. Plus you get the power of Polyhalite – a revolutionary 4-in-1 mineral containing potassium, calcium, magnesium and sulphur in one granule. The unique Poly-S technology means the nitrogen is released over a period of two to three months to give you sustained growth. ProTurf puts state-of-the-art innovation to work for you.
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Premium quality controlled release fertilizers for use on sportspitches, outfields and tees
You want to keep your tees, fairways, outfields and sports field in top condition year-round. Sierrablen leverages ICL’s unique controlled release technologies to give your turf consistent, reliable and long-lasting nutrition for peak performance – in every season and weather. Just one application will deliver up to nine months’ of precision nutrition. So you save time and money, while keeping your turf healthy and strong. Soon available with eqo.s technology.
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Premium quality controlled release mini-granular fertilizers
Sierrablen Plus is our top tier controlled release fertilizer range that grants the maximum consistent growth with no peaks thanks to the most homogeneous release curves allowed by Poly-S® CRF technology. It comes in mini granules that pack a big impact. You get steady, precision nutrition even at low application rates. Controlled release allows both, a rapid boost to growth and long-lasting results. In addition, a selection of our Sierrablen Plus products have the unique Pearl® Technology included. Phosphorus from recycled sources for unprecedent root growth make Sierrablen Plus with Pearl® technology your secret for fast and effective turf establishment. Soon available with eqo.s technology.
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A granular fertilizer with the combination of controlled and conventional release technologies
Sportsmaster CRF gives you the perfect solution for turfgrass mown above 12 mm. It features controlled release phosphorus and potassium to stimulate root growth and strengthen leaf blades. Each granule boasts a blend of coated and uncoated nitrogen elements. With Sportsmaster CRF your turf will show an instant response while nutrients are released consistently for up to 3 months.
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Combination of controlled release and conventional technologies packed in a small granule
Sportsmaster CRF Mini is the fast, economical and easy path to luscious green turf. It releases nitrogen at separate intervals for optimum effectiveness and features Poly-S technology to ensure regular, surge-free growth. The uncoated portion gives an instant boost to your turf for visible results. The high analyses mean you can use lower application rates for outstanding cost-effectiveness. So you get more green for less.
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