Efficient grain production compared with N2O emissions

2013

Research organisatons
Funding source

Trial details

Researcher(s) Michael Wurst (Rural Solutions SA)
Year(s) 2013
Contributor Upper North Farming Systems
Trial location(s) Booleroo Centre, SA
Efficient grain production compared with N2O emissions locations
Aims

The main aims of this demonstration are to:

  • Increase farmer knowledge about the N2O emissions made from fertiliser and legumes;  
  • Reveal options available to reduce N20 emissions; and
  • Provide information about nutrient use efficiency to maximise productivity.
Key messages

Although the N2O emissions did not seem to correlate with the rate of N fertilizer applied the demonstration did clearly show that despite extremely wet conditions at and soon after application N2O emissions are still relatively low (less than 10%) compared to irrigation sites. These emissions are likely to be well above average in this soil and rainfall indicating the emissions from N2O in these cropping systems is relatively insignificant. The demonstration will be conducted again in 2014 using several rates of Non a single soil type to get a clearerpicture of the variation in emissions.

Lead research organisation Primary Industries and Regions SA
Host research organisation Upper North Farming Systems
Trial funding source DAFF VIC
Related program Action on the Ground
Acknowledgments N/A
Other trial partners Not specified
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Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Grazing: Application Method
Trial type Demonstration
Trial design Unknown

Booleroo Centre 2013

Sow date 27 May 2013
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

60kg/ha DAP

Other trial notes

In 2012 BCG, in conjunction with DAFF, the Department of Primary Industries (DPI) and the Low RainfallCollaboration Group (LRCG), managed two demonstrations that measured N2O emissions from soils under varying cropping regimes. The first compared the N2O output when N was applied through synthetic fertiliser. The second measured the N contribution made by a vetch legume crop that was terminated at various times in the establishment year. The corresponding effect of N2O emissions from a&

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Download results

Trial results Table 1

@T1: GreenSeeker 19/7/13
# Variety
Treatment 1
Treatment 2
Mineral N (kg/ha) NDVI (.)
1 Hindmarsh Sandy Loam N2O Measurements 85 0.319
1 Hindmarsh Sandy clay loam N2O Measurements 55 0.24
2 Hindmarsh Clay loam N2O Measurements 40 0.4
2 Hindmarsh
3 Hindmarsh
3 Hindmarsh

Mineral N kg/ha


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NDVI .


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Booleroo Centre, SA Various
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Booleroo Centre, SA Sodosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Booleroo Centre SA
2013 578.3mm
2012 594.2mm
2011 602.9mm
2010 612.6mm
2009 592.7mm
2008 561.8mm
2007 584.8mm
2006 573.7mm
2005 584.4mm
2004 558.1mm
2003 544.5mm
2002 540.5mm
2001 588.9mm
2000 532.9mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Booleroo Centre SA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial report and links

2013 trial report



Trial last modified: 27-06-2019 11:22am AEST