fluid form

A high proportion of phosphorus applied to these soils can remain inaccessible to crops... Phosphorus derived from the fluid form occupies a larger volume of soil surrounding the fertiliser, which increases the likelihood that roots will come into contact with the nutrient... Shoot response of wheat to fluid fertilisers (APP and H 3 PO 4 ) compared to granular fertiliser (Triple P) and a control growing on a Vertosol collected from Minyip in the Wimmera under glasshouse conditions...

Identify where the benefits of fluid fertilisers are likely to be significant, in terms of climate, soil type and cropping system... The conclusion is that while there does not appear to be any yield advantage associated with using Flexi-N through the boom, as opposed to urea topdressed prior to sowing, there does appear to be an advantage when it is banded... The freight was approximately $40/tonne, compared to solid fertiliser delivered bulk, which is approximately $20/tonne...