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fertiliser price

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Catalogue: GRDC Final Reports
There is a very significant opportunity to improve nutrient management because a wealth of information, tools, techniques and technologies already exist... History and the project show it can only achieve so much and is not specific enough to bring about long-term changes in the habits of decision-makers... There is a need for a concerted and consistent approach to nutrient management by the grains industry, including better utilisation of the existing adviser network as the conduit for information and change...
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Catalogue: GRDC Updates (West)
Higher prices for both fertiliser and grain mean that fertiliser needs to be better targeted and used more efficiently because of the increased risks of losses both at the over- and under-fertilising ends of the spectrum... The key requirements for making better fertiliser recommendations are realistic estimates of potential yield (A), knowledge of the maximum yield response to fertiliser input for a give nutrient status of the soil (B) and estimates of nutrient use efficiency or the curvature of the response curve (C)... Yield response of ryegrass to applied N is considered to be linear between applications of 0 3 00 kg N ha -1(Whitehead 1995), it was appropriate to consider the linear response to N applied in the biosolids and urea...
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Catalogue: GRDC Updates
CSIRO, Curtin University and DAFWA have jointly developed an economic calculator to help consultants and farmers decide which paddocks may warrant investment in VRT or PA... On one farm in Bodallin, 9 paddocks out of 20 generated returns of more than $15/ha or more when managed with VRT... To explore the issue we have developed a PA economic calculator for the industry to address questions about the likely return that VRT can deliver to an individual field...
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