Polysulphate is a natural, multi-nutrient granular fertilizer mined exclusively by ICL. It provides four key plant-available nutrients—sulfur, potassium, magnesium, and calcium, all in sulfate form. Licensed for use in organic growing systems, it has a particularly low carbon footprint, making it an excellent eco-friendly choice for growers.
- Naturally low salinity levels and extended nutrient delivery reduce the risk of crop injury
- pH neutral— Like gypsum, Polysulphate provides essential nutrients without affecting the growing media pH
- Superior to gypsum for water supplies high in sodium and calcium, but low in magnesium
- Plant-available—all nutrients available for uptake in sulphate form
- Compatible with most other fertilizers and can be incorporated in pre-mix potting soil
- No special equipment needed
- Low carbon footprint
2 to 10 lbs. per cubic yard depending on growing conditions and region—consult your regional ICL Territory Manager for detailed advice.
1
Contact your regional ICL Territory Manager to help determine the optimum soil incorporation rate
2
Verify the rate selection through trialing— your ICL Territory Manager can advise and assist
3
Consider using in a pre-mix “starter charge”
4
Store in a clean, cool, dry place