The mechanisms responsible for effectiveness of fluid fertilisers in calcareous soils, and the ineffectiveness of granular P, were identified chemically and spectroscopically... Field experiments on calcareous and non-calcareous soils in the Victorian Wimmera and Mallee regions have also shown that fluid fertilisers can improve grain yields on these soil types, although the magnitude of grain responses were usually smaller than on the highly calcareous soils in South Australia... There is a growing demand for information on fluid fertilisers and their use in cropping in Australia, as demonstrated by the increasing hits to the fluid fertiliser website, and the growth in circulation of the Fluid Newsletter, and the popularity of the Fluid Workshop held in 2004...
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