Managing stubble and fertiliser to increase soil carbon

2012 - 2015
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Jeff Baldock (CSIRO)
Sarah Noack (Hart Field Site Group)
Harm van Rees (Cropfacts Pty Ltd)
Year(s) 2012 - 2015
Contributor Hart Field Site Group
Trial location(s) Hart, SA
Managing stubble and fertiliser to increase soil carbon locations
Aims

To add normal, as required to optimise yield potential, and extra amounts of nutrients (N, P and S) to different stubble managements (intact, incorporated and removed) to see if SOM levels could be increased.

Key messages
  • The addition of extra nutrients and stubble management (removed, incorporated or intact) did not affect grain yield or soil carbon stocks after three years of trial work.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Related program N/A
Acknowledgments N/A
Other trial partners Cropfacts Pty Ltd and CSIRO
Download the trial report to view additional trial information

Method

Crop types Cereal (Grain): Barley Cereal (Grain): Wheat Oilseed: Canola
Treatment type(s)
  • Crop: Rotation
  • Stubble: Management
Trial type
Trial design

Hart 2012 Barley

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

Hart 2012 Wheat

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

Hart 2012 Canola

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

Hart 2013 Barley

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

Hart 2013 Wheat

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

Hart 2013 Canola

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

Hart 2014 Barley

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

Hart 2014 Wheat

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

Hart 2014 Canola

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

Hart 2015 Barley

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

Hart 2015 Wheat

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

Hart 2015 Canola

Sow date 5 June 2015
Harvest date Not specified
Plot size 2.7m x 10m
Plot replication 4
Fertiliser
  • Normal nutrition DAP + Zn 2% @ 100 kg/ha at seeding
  • Extra nutrition DAP + Zn 2% @ 135 kg/ha, SOA @ 10 kg/ha and urea (46:0) @ 21 kg/ha at seeding
  • UAN (42:0) @ 87 L/ha, 11th August all plots
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha)
1 Stubble removed + high nutrition 0.71
2 Stubble removed + normal nutrition 0.68
3 Stubble intact + high nitrition 0.67
4 Stubble intact + normal nutrition 0.65
5 Stubble incorporated + high nutrition 0.69
6 Stubble incorporated + normal nutrition 0.67

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hart, SA Chromosol
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 Hart SA
2015 597.6mm
2014 638.6mm
2013 622.8mm
2012 654.6mm
2011 683.8mm
2010 686.7mm
2009 669.9mm
2008 633.9mm
2007 649.9mm
2006 651.2mm
2005 675.4mm
2004 633.0mm
2003 652.2mm
2002 649.4mm
2001 674.5mm
2000 625.6mm
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.

Hart 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

2015 trial report



Trial last modified: 06-08-2019 07:54am AEST