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nitrogen fertiliser

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Catalogue: GRDC Media
Western Australian grain growers may need to consider adjusting 2014 nitrogen fertiliser strategies due to the influence of high stubble loads and a dry summer and autumn on plant available nitrogen in the soil... Mr Ryan suggested growers use these results and assess stubble loads to determine if additional fertiliser was required, and consider adjusting their nitrogen application method at seeding time or using split (separate) nitrogen applications which could decrease any risk of low nitrogen availability... "Knowing your current soil nitrogen status; stubble density; stubble quality (including the amount of nitrogen relative to carbon); and soil moisture content can help you manage fertiliser applications and rates to ensure that adequate nitrogen is supplied to the crop," he said...
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Catalogue: Ground Cover
Raised beds need on-farm water plans.. Late-season waterlogging events have been rare in the six years since Tim Johnston, a soil and water research scientist with the Department of Primary Industries, Victoria (DPI), started assessing the environmental impacts of water and nutrient losses from raised beds... Mr Johnston says the reduced runoff from raised beds is the result of improved soil structure under the bed, leading to increased water holding capacity of the soil and greater water use by the crop...
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Catalogue: GRDC Updates (North)
" Grains Research Update "Getting Ready for Summer" Orion Hall Wednesday 7th Nov 2001.. Farming systems which minimise the movement of soil and water will also minimise the loss of nutrients and pesticides... In summary, Mike has found a strategy to help him interpret his yield maps - and is now taking the same approach to other paddocks to maximise fertiliser savings...
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Catalogue: GRDC Updates (South)
" Grains Research Update "Getting Ready for Summer" Orion Hall Wednesday 7th Nov 2001.. Farming systems which minimise the movement of soil and water will also minimise the loss of nutrients and pesticides... In summary, Mike has found a strategy to help him interpret his yield maps - and is now taking the same approach to other paddocks to maximise fertiliser savings...
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Catalogue: GRDC Media
Studies have revealed that growing crop legumes in rotation with cereals can often reduce the need for nitrogen fertiliser inputs by 40 to 80 kilograms per hectare, and improve crop productivity... Basic principles and practical management information relating to nitrogen fixation by crop legumes is contained in a new fact sheet released by the Grains Research and Development Corporation (GRDC)... The ability of legumes to form a mutually beneficial association with rhizobia and fix atmospheric nitrogen gas enables them to grow in almost any soil without nitrogen fertiliser...
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Catalogue: GRDC Media
The Better Fertiliser Decisions for Crop Nutrition Fact Sheet states that inefficient or incorrect use of fertiliser can be a substantial, but somewhat hidden cost, in the cropping operation... The new fact sheets have been distributed to growers with the November-December issue of GRDC's Ground Cover magazine and can also be viewed and downloaded via www.grdc.com.au/GRDC-FS-BFDCN and www.grdc.com.au/GRDC-FS-CropNutrition-Micronutrients ... Caption: The Grains Research and Development Corporation (GRDC) has released two new fact sheets to enhance grain growers' understanding of crop nutrition...
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Catalogue: GRDC Research Summaries
Enhanced efficiency fertilisers (EEFs), including slow release compounds and urease and nitrification inhibitors, show promise for improving efficiency, increasing management flexibility, and reducing N2O emissions... Enhanced efficiency fertilisers, including controlled release fertilisers and fertilisers amended with urease or nitrification inhibitors, show promise for improving nitrogen use efficiency... The main objective of the project is to assess the benefits of enhanced efficiency fertilisers, particularly nitrification inhibitors, in mitigating nitrous oxide emissions and increasing the efficiency of nitrogen fertilisers for a range of agricultural industries, including cropping (Victoria and NSW), sugarcane (Queensland) and dairy (Victoria), under different climatic conditions that are found across Australia...
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Catalogue: GRDC Media
Research aids decisions on fertiliser application.. Conversely calcium carbonate content did not affect losses from urea or other nitrogen fertilisers trialled so growers with high calcium carbonate content soils will incur less risk by tailoring their fertiliser type ... As a high input cost, fertiliser selection and application need to be managed well if growers are to maximise crop returns and this type of research is a valuable step forward in enabling industry to achieve that goal...
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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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Catalogue: GRDC Media
Studies have revealed that growing crop legumes in rotation with cereals can often reduce the need for nitrogen fertiliser inputs by 40 to 80 kilograms per hectare, and improve crop productivity... Basic principles and practical management information relating to nitrogen fixation by crop legumes is contained in a new fact sheet released by the Grains Research and Development Corporation (GRDC)... The ability of legumes to form a mutually beneficial association with rhizobia and fix atmospheric nitrogen gas enables them to grow in almost any soil without nitrogen fertiliser...
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