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Single Superphosphate is produced by reacting phosphate rock with sulphuric acid to convert the insoluble phosphates into forms more readily available to plants. Rock phosphate is a naturally occurring mineral that is mined in various regions.

The rock phosphate is first ground to the correct size, accurately measured and weighed and then fed into a Mixer where it is reacted with sulphuric acid and water. These ingredients are mixed thoroughly as it thickens. The ingredients react to form a semi-solid slurry, which continues to react over a slow moving conveyor with a dough like consistency until it is chopped into very fine pieces to feed a Granulator for reaggregation into granules. It then undergoes a screening process to produce an interim product which is known as Run of Pile. This is allowed a further batch curing period of approximately 4 weeks before being finally dried and screened to produce finished granulated Single Superphosphate.

The Single Superphosphate is then stored for dispatch as the SSP granular fertiliser you use today.

Phosphate Rock + Sulphuric Acid → Single Superphosphate

Where is Single Superphosphate from?

Single Superphosphate is manufactured all over the world. Impact Fertilisers manufactures their Single Superphosphate locally in Hobart, Australia. Impact Fertilisers is committed to manufacturing in Australia, to ensure a quality and environmentally friendly product is produced to market specifications under our strict quality control measures in Australia.

What is Single Superphosphate used for?

SSP is a traditional product for supplying phosphorus and sulphur to pastures, the main two nutrients required for pasture production. SSP provides the ideal balance of phosphorus, sulphur and calcium for improving pasture, hay and livestock profitability, contained within the one granule.

Check out our SSP brochure to find out more about Impact Fertilisers Single Super Phosphate.