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nitrous oxide emission

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Catalogue: GRDC Research Summaries
" Income from Dairy Australia for project DAV00097 - The potential of inhibitors for the mitigation of nitrous oxide emissions from animal production systems, in south-eastern Australia Project Code: DAV00097-I < Keep browsing..
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Catalogue: GRDC Final Reports
" Measurement of paddock-based greenhouse gas emissions from wheat production to improve life cycle assessment of wheat-products DAW00103 Start Date: 31/12/2003.. 2) The emission factor (EF) for nitrous oxide could be reduced from the Department of Climate Change (DCC) standard of 0.3% to a lower figure measured in these experiments eg. 0.06%... As part of the project, greenhouse gas emissions were measured for a rain-fed wheat crop and for lupin and canola crops for comparison...
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Catalogue: Ground Cover
Agriculture remains a target in the world's push to reduce greenhouse gas emissions, but local studies show the industry has ready-to-hand options that should not compromise production or profitability.. In research looking at ways to reduce cropping's contribution to greenhouse gas emissions, common management practices such as no-till and stubble retention have emerged as ready-made tools... Results suggest that greenhouse gas reductions could come from efforts to reduce nitrous oxide emissions by the following changes in management: applying up to 25 per cent less nitrogen fertiliser; using short-term, green manure legume crops in place of fallows; regular applications of beef or chicken feedlot manure (if available); and nitrogen fertiliser applied at sowing instead of at four to six weeks prior to sowing...
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Catalogue: GRDC Research Summaries
The potential of inhibitors for the mitigation of nitrous oxide emissions from animal production systems, in south-eastern Australia An automated system linking 8 enclosure chambers to a Fourier Transformed Infrared Spectrometer (FTIR) will be used to measure N2O, CO2 and CH4 emissions respectively from treatments described below at the core site at DemoDairy, Terang (38o14 'S, 142o55 'E), in south-west Victoria... The potential for increases on pasture productivity from the use of inhibitors requires testing under Australian conditions... An understanding of the potential for inhibitors to reduce direct nitrous oxide emissions from urine deposited on pasture in animal production systems, specifically dairy production systems...
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Catalogue: GRDC Research Summaries
" Integrated data and synthesis framework for reducing nitrous oxide emissions from Australian agricultural soils Project Code: QUT00002 < Keep browsing..
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Catalogue: GRDC Final Reports
The variability of ammonia volatilisation (5-26% of applied urea nitrogen (N)) associated with initial moisture status and the occurrence of follow-up rain leads to the conclusion that sophisticated modelling of this process is unlikely to be practical for accounting purposes... Large nitric oxide emissions are linked to rising nitrate concentrations in soil... While small emissions of nitric oxide occur during periods of near-constant soil nitrate concentration, large nitric oxide emissions are linked to rising nitrate concentrations in soil...
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Catalogue: GRDC YouTube channel
For a fact sheet go to http://www.grdc.com.au/GRDC-FS-ReducingNLoss 1.1: GCTV Ep#13 Denitrification 3.3: Narrator: Jane Drinkwater Nitrogen is the largest nutrient input in 8.32: northern Australian cropping systems, but as well as water leaching it deep into the 12.87: soil profile, nitrogen can be lost to the atmosphere through denitrification... 232.55: Narrator: The project is part of a national initiative 235.69: called NANORP, which includes research into aspects affecting N2 to N2O ratios, the use 242.13: of different inhibitors to control nitrification rates, and the use of feed lot manures and 247.97: waste water treatment plant bio solids as sources of nitrogen... 291.72: Mike Bell: I think it is important for growers to recognize 295.54: when those denitrification events occur, soil test to see how much nitrogen they have lost, 301.98: and then adjust the fertiliser rates ...
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Catalogue: GRDC Research Summaries
Cropping is expanding in the southern High Rainfall Zone (HRZ) and it is important that we provide farmers with management options that minimise greenhouse gas emissions without reducing productivity... Nitrous oxide emissions in excess of 3 kg nitrogen/hectare/year (equivalent to 1460 kg of carbon dioxide equivalents) have been measured when a high fertility legume pasture in the southern high rainfall zone was sprayed out and cropped with wheat... The management and mitigation options that we are testing in this project are direct drilling of wheat compared to conventional cultivation and the application of a nitrification inhibitor dicyandiamide (DCD), which temporarily shuts down the microbes in the soil nitrogen cycle that convert ammonium to nitrate, and slows the rate of nitrous oxide emission from the soil...
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Catalogue: GRDC Research Summaries
An improvement in the efficiency of soil nitrogen cycling is expected to reduce nitrous oxide emissions... Existing farmer networks (Southern Farming Systems - Hamilton Branch, Horsham East Top Crop Group and the Birchip Cropping Group) will be used to help develop the key messages, so that they clearly demonstrate their relevance and importance to commercial cropping farms... Key extension messages at field days and fact sheets will focus on efficient nitrogen use by utilising existing tools (ie Yield Prophet, deep soil testing) for more informed nitrogen fertiliser decision making...
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Catalogue: GRDC Research Summaries
An improvement in the efficiency of soil nitrogen cycling is expected to reduce nitrous oxide emissions... Existing farmer networks (Southern Farming Systems - Hamilton Branch, Horsham East Top Crop Group and the Birchip Cropping Group) will be used to help develop the key messages, so that they clearly demonstrate their relevance and importance to commercial cropping farms... Key extension messages at field days and fact sheets will focus on efficient nitrogen use by utilising existing tools (ie Yield Prophet, deep soil testing) for more informed nitrogen fertiliser decision making...
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