Physical Description:
Colour varies with rock types from pink to brown or dark grey granules, with yellow crystals of elemental sulphur.
Uses:
TSP sulphur super contains more soluble phosphate, calcium but less elemental sulphur and sulphate sulphur than sulphur super 30 and is a suitable fertiliser for capital or maintenance applications. It is most suited to hill and high country farms on sedimentary soils which require higher P inputs and where either sulphate leaching is high or fertiliser application occurs on 2-3 yearly intervals rather than annually. TSP sulphur super is also applicable for pumice and peat soils.
Benefits (& Special Feature):
TSP sulphur super is an excellent multi nutrient fertiliser which suits many different pastoral land uses. It is especially useful where a higher ratio of P to S is required. Elemental S is slow release sulphur as it requires the action of Thiobacillus bacteria in the soil to convert the elemental S to sulphate S, thus suits infrequent application or soils with low ASC in high rainfall environments.
Application (& Compatibility):
Spreading rates for TSP sulphur super vary greatly mostly depending on P and S requirement, but it is not recommended to be spread at rates of over 1 tonne/ha. Actual spreading rates will vary according to farm type, climate, productivity and soil type - it is best to confirm rates with a Field Officer. The rate spread should be determined by the need for the major nutrients and the frequency of application.
Storage & Handling:
As with most solid fertilisers, TSP sulphur super can be stored over a season as long as it is kept in a cool, dry, well ventilated area.