Nitrous oxide emission levels in response to alternative crop rotations

2013
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Brian Dzoma (SARDI)
Roy Latta (SARDI)
Year(s) 2013
Contributor Eyre Peninsula Agricultural Research Foundation
Trial location(s) Minnipa Agricultural Centre, SA
Wanilla, SA
Nitrous oxide emission levels in response to alternative crop rotations locations
Aims

To measure and quantify N2O emissions from wheat grown in rotation with canola, pulses and legume pastures at two sites in low and medium/high rainfall farming systems of the Eyre Peninsula, while assessing best management practices that local farmers can adopt to reduce the risk of N2O losses and ultimately improve the paddock’s crop productivity and gross margin.

Key messages

Preliminary results showed the level of nitrous oxide emissions did not increase over the 2013 winter as a result of near capacity soil water contents coupled with increased nitrate nitrogen levels resulting from seeding and in-crop nitrogen applications on the canola compared with a pulse crop and legume pasture.

Lead research organisation N/A
Host research organisation SARDI Minnipa Agricultural Centre
Trial funding source DAWR AOTGR1- 035,AOTGR1-222
Related program Carbon Farming Initiative
Acknowledgments

Minnipa Agricultural Centre and David Giddings for the use of their land. Terry Blacker and Ian Richter for their technical support. This project is supported by funding from the Australian Government Department of Agriculture, - Action on the Ground program. A component of a BCG lead project.


Other trial partners Birchip Cropping Group (BCG); Ag Excellence Alliance; Eyre Peninsula Natural Resources Management (EPNRM)
Download the trial report to view additional trial information

Method

Crop types Clover
Medic
Field peas
Lupins
Canola
Treatment type(s)
  • Crop: Type
  • Fertiliser: Rate
  • Fertiliser: Timing
Trial type
Trial design

Minnipa Agricultural Centre 2013 Clover

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Minnipa Agricultural Centre 2013 Medic

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Minnipa Agricultural Centre 2013 Field peas

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Minnipa Agricultural Centre 2013 Lupins

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Minnipa Agricultural Centre 2013 Canola

Sow date 30 April 2013
Harvest date 8 October 2013
Plot size 10m x 3m
Plot replication 3

Wanilla 2013 Medic

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Wanilla 2013 Canola

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Wanilla 2013 Field peas

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Wanilla 2013 Lupins

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Wanilla 2013 Clover

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results MAC

# Variety
Treatment 1
Organic carbon (%) Biomass (DM/ha) Establishment plants (plants/m2) pH (value) Grain yield (t/ha)
1 Canola:Stingray canola 0.9 4 62 8.1 0.6
2 Medic:Angel Annual medic 0.9 2.8 129 8.1
3 Fieldpea:Twilight Field pea 0.9 6 49 8.1 1.4

Grain yield t/ha


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Biomass DM/ha


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Establishment plants plants/m2


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Organic carbon %


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pH value


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Trial results Table 2

# Variety
Treatment 1
Organic carbon (%) Biomass (DM/ha) Establishment plants (plants/m2) pH (value) Grain yield (t/ha)
1 Wheat:Mace Sub clover 2013 564 233 37.8 9.3 2.3
2 Wheat:Mace Canola low input 2013 576 234 38.4 9.3 2.4
3 Wheat:Mace Lupins 2013 721 245 49.6 9.7 2.9
4 Wheat:Mace Canola high input 2013 657 310 48.6 10.3 2.7

Grain yield t/ha


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Biomass DM/ha


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Establishment plants plants/m2


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Organic carbon %


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pH value


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Minnipa Agricultural Centre, SA Calcareous red sandy loam
Wanilla, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Minnipa Agricultural Centre, SA Calcarosol
Wanilla, 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 Minnipa Agricultural Centre SA Wanilla SA
2013 309.1mm532.5mm
2012 341.1mm537.0mm
2011 384.6mm550.2mm
2010 373.1mm557.5mm
2009 382.1mm535.5mm
2008 300.4mm504.2mm
2007 302.9mm506.0mm
2006 341.2mm536.8mm
2005 307.8mm549.1mm
2004 299.0mm536.9mm
2003 308.0mm558.0mm
2002 309.5mm537.2mm
2001 351.3mm550.6mm
2000 354.3mm529.1mm
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.

Minnipa Agricultural Centre SA

Wanilla SA

Minnipa Agricultural Centre SA

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Wanilla SA

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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: 09-12-2019 09:27am AEST