The natural, multi-nutrient mineral fertilizer Polysulphate is the foundation of our Polysulphate based fertilizers. Polysulphate is made from polyhalite, the 4-in-1 mineral containing sulfur, potassium, magnesium, and calcium. Polysulphate is mined, crushed, and screened ready for use, giving Polysulphate its naturally low carbon footprint. It has a natural prolonged nutrient release and is approved for organic agriculture. Its low pH, low salt index and very low chloride content makes Polysulphate a highly versatile, crop and soil-safe mineral fertilizer.
The combination of Polysulphate with other nutrients results in fertilizers capable of providing even more nutrients in a single, extended-availability granule. Explore our Polysulphate based fertilizers to find out how they will help your crops achieve their potential.
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PK premium granulated fertilizers featuring Polysulphate
ICL PKpluS is our line of PK (phosphorus and potassium) granulated fertilizers based on Polysulphate, containing five nutrients. The application of an ICL PKpluS formulation allows farmers to apply phosphorus and potassium along with sulfur, magnesium, and calcium in a single operation. A considerable proportion of the potassium content is in sulfate (SO4) form (20–35%), allowing flexible use in many crops. ICL PKpluS is available in a variety of formulae grouped into three types: high phosphorus for best plant establishment balanced phosphorus and potassium for a balanced and efficient nutrient supply, and high potassium for extra crop quality. Tailor-made ICL PKpluS fertilizers with additional micronutrients are available by request.
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The four-in-one natural fertilizer
Mined in the UK in its natural crystal state (polyhalite), Polysulphate contains four nutrients: sulfur (S), potassium (K), magnesium (Mg), and calcium (Ca). Being a natural crystal, Polysulphate has a unique dissolution pattern that releases nutrients gradually after application. This prolonged availability reduces the chance of nutrient losses while also matching the uptake requirements of crops. Polysulphate stands out as an eco-friendly choice for farmers due to its natural composition and exceptionally low carbon footprint. Polysulphate sets the standard in environmental sustainability among fertilizers, with Polysulphate Standard, Granular, and Mini having the lowest carbon footprint (compared to similar products) of just 0.029 kilograms of CO2 equivalent per kilogram of product. Polysulphate is suitable for organic farming systems and is approved for organic use by certification agencies around the world, including Ecocert, Ceres, and OMRI.
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