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phosphorus fertiliser

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Catalogue: Ground Cover
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...
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Catalogue: GRDC Research Summaries
The work will characterise PUE of a diverse range of wheat and barley varieties in the field to identify germplasm with consistently high PUE... The aim of the project is to assess the level of genetic variation in response to phosphorus fertiliser in wheat and barley and to provide plant breeders with the information and genetic tools to improve phosphorus use efficiency of cereals... There are three outputs from this project: (i) it will characterise the response to phosphorus among a large number of varieties of wheat and barley; (ii) it will provide detailed analysis of the reasons why varieties show different response to phosphorus fertiliser and how this relates to their phosphorus use effciency and (iii) through genetic studies it will aim to provide plant breeders with tools to make the selection for phosphorus use effciency easier...
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Catalogue: GRDC Research Summaries
The work will characterise PUE of a diverse range of wheat and barley varieties in the field to identify germplasm with consistently high PUE... The naturally-low levels of soil phosphorus over large areas of Australia?s cropping zone necessitate regular applications of phosphorus fertiliser to sustain productivity... The aim of the project is to assess the level of genetic variation in response to phosphorus fertiliser in wheat and barley and to provide plant breeders with the information and genetic tools to improve phosphorus use efficiency of cereals...
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Catalogue: Ground Cover
Grower group road-tests subsoil phosphorus nutrition.. The conventional practice of applying 8.7kg/ha of phosphorus in 40kg/ha of starter fertiliser with the seed, about 5cm into the soil, provided a 47 per cent yield increase - almost half the yield benefit of deep phosphorus applications... Preliminary data from the 2014 trials also suggests that subsoil applications of phosphorus at higher rates may provide almost twice the yield benefit of phosphorus applied at low rates near the surface as starter fertiliser...
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Catalogue: Ground Cover
Grower group road-tests subsoil phosphorus nutrition.. The conventional practice of applying 8.7kg/ha of phosphorus in 40kg/ha of starter fertiliser with the seed, about 5cm into the soil, provided a 47 per cent yield increase - almost half the yield benefit of deep phosphorus applications... Preliminary data from the 2014 trials also suggests that subsoil applications of phosphorus at higher rates may provide almost twice the yield benefit of phosphorus applied at low rates near the surface as starter fertiliser...
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Catalogue: GRDC Publications
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...
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