Physical Description:
Generally dark grey, but like straight Super the colour of the granules will vary with the rock type/source.
Uses:
A high analysis soluble Phosphate fertiliser suitable for crops with a high Phosphate requirement and where there is adequate sulphur already present in the soil.
Benefits:
Used in some crop fertiliser mixtures - not usually cost competitive for pastoral application. The benefit of the high P content is that the cost of the cartage spreading component per kg P applied is lower than Single Superphosphate.
Application:
Spreading rates for Triple Super vary greatly, but it is not recommended to be spread at rates of over 500 kg/ha. Actual spreading rates will vary according to farm type and region - it is best to confirm rates with a Field Officer.
Storage & Handling:
As with most solid fertilisers, Triple Super can be stored over a season as long as it is kept in a cool, dry, well ventilated area.
Source:
Phosphate rock is sourced currently from Togo, Morocco, and China.