Seasonal effects of strategic stubble treatments on wheat, barley and oats in CWFS districts; Year 1 of a 5 year investigation

2013
CC BY 4.0

Research organisatons

Trial details

Researcher(s) N/A
Year(s) 2013
Contributor Central West Farming Systems
Trial location(s) Tottenham, NSW
Seasonal effects of strategic stubble treatments on wheat, barley and oats in CWFS districts; Year 1 of a 5 year investigation locations
Aims
  • To investigate the impact of different stubble treatments imposed towards the end of the fallow have on the yield of wheat, barley and oats.
  • To evaluate any varietal responses within crop species to the impact of the different stubble treatments.
Key messages

• Stubble treatments involving late burning or cultivation resulted in significantly different yields in wheat, barley and oats at 4 of 6 trials conducted at Rankins Springs, Weethalle, Wirrinya, Tottenham, Tullamore and Euabalong during 2013. The yield effects were not consistent and these initial trials could not be used to predict response. • Crop establishment was not affected by stubble or tillage treatment at five of the six sites. At Rankins Springs, however, establishment was 15% higher in the burnt stubble than in the standing stubble treatment. • Visual differences in early growth could be observed between stubble treatments. Biomass in mid-August was lower with standing stubble than after burning at three sites (Weethalle, Tottenham and Tullamore) but not at Wirrinya and Euabalong. • Variety rankings were not significantly affected by stubble treatments. The best option in terms of yield was to simply grow the variety with the highest yield potential for the sowing window.

Lead research organisation Grains Research and Development Corporation
Host research organisation N/A
Related program Maintaining profitable farming systems with retained stubble
Acknowledgments

CWFS would like to acknowledge the support provided by the co-operating farmers, without their in-kind support the trials would never happened. The support provided by AgGrow Agronomy and Research at Rankins Springs site was well beyond any simple contractual arrangement between themselves and CWFS. Matt McRae, Walkers Ag N Vet, Forbes


Other trial partners Not specified

Method

Crop types Forage: Oats Cereal (Grain): Wheat
Trial type
Trial design

Tottenham 2013 Oats

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Other trial notes

Cultivation treatment imposed with offset discs. Nile oats was heavily grazed by kangaroos as it was the last remaining green pick in the trial and surrounding paddock. Likely effect on yield Mitika oats was generally flattened by kangaroos resting following grazing of nile oats. The short stems of Mitika surrounded by the higher growing varieties provide comfortable secluded resting space. Likely effect on yield.

Tottenham 2013 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Other trial notes

Cultivation treatment imposed with offset discs. Nile oats was heavily grazed by kangaroos as it was the last remaining green pick in the trial and surrounding paddock. Likely effect on yield Mitika oats was generally flattened by kangaroos resting following grazing of nile oats. The short stems of Mitika surrounded by the higher growing varieties provide comfortable secluded resting space. Likely effect on yield.

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
Tottenham, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Tottenham, NSW 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 Tottenham NSW
2013 527.1mm
2012 600.8mm
2011 617.7mm
2010 641.8mm
2009 615.3mm
2008 611.1mm
2007 603.0mm
2006 578.7mm
2005 600.0mm
2004 612.0mm
2003 604.7mm
2002 583.4mm
2001 594.8mm
2000 561.5mm
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.

Tottenham NSW

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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 last modified: 26-11-2019 15:03pm AEST