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Does increasing soil organic carbon in sandy soils increase soil nitrous oxide emissions from grain production?

2014
CC BY 4.0

Research organisations
Funding sources
Liebe Group University of Western Australia Department of Agriculture and Food WA
Australian Government <abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Louise Barton (DAFWA)
Frances Hoyle (DAFWA)
Daniel Murphy (DAFWA)
Year(s) 2014
Contributor Liebe Group
Trial location(s) Buntine, WA
Does increasing soil organic carbon in sandy soils increase soil nitrous oxide emissions from grain production? locations
Aims

To investigate if increasing soil organic carbon (SOC) increases N2O emissions.

Key messages
  • Crop production is often a source of greenhouse gas (GHG) emissions including nitrous oxide (N2O).
  • Increasing organic carbon (C) in the surface soil increased N2O emissions from a cropped soil in the Western Australian grainbelt, however, losses were low by international standards.
  • Greatest N2O emissions occurred in response to summer-autumn rainfall events.

 

Buntine WA 2014

Paddock rotation: 2011 wheat, 2012 canola, 2013 barley

Growing Season Rainfall 185mm

Lead research organisation University of Western Australia
Host research organisation Department of Agriculture and Food WA
Trial funding source Australian Government
Trial funding source GRDC
Related program N/A
Acknowledgments

Debra Donovan for maintaining the automated gas chambers and field site at Buntine, and Chris Swain for coordinating soil and plant analyses. The Liebe Group for allowing access to the Long Term Research Site and assisting with the establishment and maintenance of the study site. This project is supported by funding from the Australian Government and the Grains Research and Development Corporation.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Forage: Oats
Treatment type(s)
  • Fertiliser : Rate
  • Soil Preparation : Tillage
Trial type Experimental
Trial design Unknown

Buntine 2014

Sow rate or Target density 100 kg/ha oats
Sowing machinery

cv. Brusher
Sow date 6 May 2014 06 May 2014
Harvest date 4 November 2014
Plot size 10.5m x 3.6m
Plot replication 3
Fertiliser

03/06/2014: 214 kg/ha as urea
Herbicide

03/04/2014: 1 L/ha Glyphosate, 300 mL/ha Ester 680, 100 mL/ha Garlon 06/15/2014: 0.5 L/ha Diuron, 0.5 L/ha Dual Gold 30/06/2014: 2 L/ha SpraySeed, 500 g/ha Diuron, 140 g/ha Cadance, 1.5 L/ha Precept, 1 L/ha Hasten
Other trial notes

For further information, contact
Louise Barton, UWA
louise.barton@uwa.edu.au
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Buntine, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Buntine, WA Kandosol
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 Buntine WA
2014
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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.

Buntine WA

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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

2014 trial report



Trial last modified: 17-05-2023 16:55pm AEST