For arable, dairy, sheep and beef farmers
Who are looking to improve crop yield and quality through a steady supply of crop essential nutrients
Our product is a multi-nutrient granular fertiliser containing 48% sulphur, 14% potassium, 6% magnesium, 17% calcium
Better than other forms on the market as the sulphur is released over a 55-day period, preventing potential leaching losses
Our solution is fully approved for organic use, contains low levels of chloride and has a lower carbon footprint than standard practice
It is tried, tested and proven in the UK and Ireland
Polysulphate® is a unique, multi-nutrient fertiliser containing sulphur (S), potassium (K), calcium (Ca) and magnesium (Mg) in water-soluble, plant available forms. Mined in the UK, Polysulphate® can be applied as a straight or combined into multi-nutrient compounds.
Investigate the effect of different rates of Polysulphate on combining peas on a sandy clay loam soil
DownloadPOLYSULPHATE is a key source of sulphur in many of our NUTRI-MATCH blends | |
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Polysulphate | 14K 6Mg 48S 17Ca |
PotashpluS | 37K 2.8Mg 23S 8Ca |
27-0-8 + 5SO3 + 0.5MgO + 2CaO | A standard Polysulphate grade |
15-15-15 + 10SO3 + 1MgO + 3.5CaO | A standard Polysulphate grade |
20-10-10 + 7.5SO3 + 1MgO + 2.5CaO | A standard Polysulphate grade |
25-5-5 + 7.5SO3 + 1MgO + 2.5CaO | A standard Polysulphate grade |
GU 33-0-5 + 14SO3 + 2MgO + 5CaO | A standard Polysulphate grade |
0-16-24 + 16SO3 + 2MgO + 5.5CaO | A standard Polysulphate grade |
0-20-20 + 14.5SO3 + 2MgO + 5CaO | A standard Polysulphate grade |
0-24-24 + 5SO3 + 0.5MgO + 2CaO | A standard PotashpluS grade |
0-20-30 + 5SO3 + 0.5MgO + 2CaO | A standard PotashpluS grade |
In addition to our standard Polysulphate grades we produce prescription grades - combinations of major, secondary and micro nutrients tailored to meet specific soil and crop requirements at individual field level. Learn more about NUTRI-MATCH |
Polysulphate™ releases sulphate for double the number of days compared to other forms of sulphur. An independent trial by the University of Nottingham compared the nutrient release pattern of various sulphur fertilisers. Polysulphate gave the most prolonged release of plant-available sulphur - up to 50 days post-application – which gives the best match with the rate of crop uptake and minimises the risk of leaching.
All the nutrients are fully available to plants.
Yes, Polysulphate is fully soluble.
Yes, we do not see a lesser uptake by plants, even in small plots, where flow of nutrients is relatively higher than soil.
No, we supply Polysulphate® in a wide range of prescription NS, NPKS and NKS blended compounds. An example of some of the grades are below.
Spreader settings for granular Polysulphate® fertiliser are available from most manufacturers of centrifugal spreaders.
Tables are available on the websites of these companies:
We produce hundreds of different prescription analyses that contain Polysulphate® across our 12 sites.
Our rigorous checks on raw materials enable us to provide some important indicators about the Polysulphate blend to help guide you when setting your spreader.
Contact us for details about your specific Origin grade.