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Frequently Asked Questions

What is PHOSTONE™?

A granular struvite fertiliser supplying phosphorus, ammonium nitrogen and magnesium.

How is it different from conventional phosphate fertiliser?

PHOSTONE™ is sparingly soluble in water and releases nutrients more gradually than highly water-soluble phosphate fertilisers.

Can PHOSTONE™ replace all fertilisers?

No. It provides phosphorus, nitrogen and magnesium. A complete programme should reflect the crop, soil test and potassium or micronutrient requirements.

Which crops is it suitable for?

PHOSTONE™ may be suitable for cereals, maize, oil palm, sugarcane, horticulture, fruit trees and turf.

Can I reduce my phosphorus application rate?

Research indicates that struvite may support more efficient phosphorus use. Rates should always be determined through local agronomic advice and soil testing.

Is PHOSTONE™ environmentally responsible?

Its slow-release profile and recovered nutrient origin support more responsible phosphorus management. The benefits depend on correct application rate, timing and placement.