Single Superphosphate

Description

Single Superphosphate (SSP) 1. FEATURES SSP is one of the cheapest forms of phosphate. Also supplies sulphur, one of the other important nutrients in all soils. Sulphur cost is one of the lowest. The ratio of P & S suits many crops and pastures needs. Both the P and S are in readily available forms. Can be blended with other products to make a range of products. Can be stored easily for long periods, without taking up moisture. 2. TYPICAL ANALYSIS % Total Phosphorus (P) 8.8 Phosphorus as Citrate Insoluble 0.2 Available Phosphorus 8.6 Phosphorus as Citrate Soluble 0.6 Phosphorus – Water Soluble 8.0 Sulphur (S) Sulphate *1.0 Calcium (Ca) as CaO *0.0 Iron as Fe2O3 0.4 – 0.6 Aluminium as Al2O3 0.5 – 0.7 Flouride as F 2.0 Silicon as SiO2 1.5 – 3.0 Cadmium (Cd) Max. *2mg/kg Cadmium (Cd) Max. **0mg/kg (P) Lead (Pb) Max. *5mg/kg Mercury (Hg) Max. 1mg/kg 3. MANUFACTURE Single Superphosphate is produced by reacting naturally occurring Rock Phosphate with Sulphuric Acid. This process converts insoluble phosphates into forms more readily available to plants.