Seasonal effects of stubble treatments on canola establishment and grain yield in CWFS districts

2013
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) John Small (CWFS)
Year(s) 2013
Contributor Central West Farming Systems
Trial location(s) Rankins Springs, NSW
Tullamore, NSW
Wirrinya, NSW
Seasonal effects of stubble treatments on canola establishment and grain yield in CWFS districts locations
Aims

Trial aimed to investigate the impact that different stubble treatments imposed towards the end of the fallow have on the establishment and yield of canola.

Key messages

• During 2013, in canola crops sown on time that achieved target plant populations, it appears that late burning and/or cultivation of previous crop stubbles improved yield. • The cost of burning stubble needs to be considered both in terms of dollar labour cost and lost nutrients. Potential impact on fallow efficiencies following the canola crop need to be better understood. Burning stubbles may have a fit in paddocks where windrows are being burnt for grass seed control or stubbles are too heavy for seeders to get through. • The cost of cultivation needs to account for both cost of the operation as well as the risk soil erosion, and the possibility of producing drier seedbed conditions at sowing time. • CWFS proposes to do further trials in the next two years. Remember this report represents only one year (2013) of data from trials at Rankins Springs, Wirrinya and Tullamore.

Lead research organisation Grains Research and Development Corporation
Host research organisation N/A
Trial funding source GRDC CWF00018
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 and Scott Boyd, GOA, Dubbo are also acknowledged.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Stubble: Management
Trial type Demonstration
Trial design Blocked

Rankins Springs 2013

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Soil amelioration Not specified
Other trial notes

Cultivation treatment imposed with light offset discs

Tullamore 2013

Sow date 28 May 2013
Harvest date Plots were representatively sampled prior to commercial windrowing. Samples were dried and processed
Plot size 40m x 10m
Plot replication 4
Fertiliser

28/5/13: 80 kg/ha MAP plus 100kg deepbanded urea fertiliser

Soil amelioration

5/4/13: Stubble treatments imposed

Other trial notes

Cultivation treatment imposed with light offset discs

Wirrinya 2013

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Soil amelioration Not specified
Other trial notes

Cultivation treatment imposed with light offset discs

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
Rankins Springs, NSW Not specified
Tullamore, NSW Clay loam
Wirrinya, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Rankins Springs, NSW Kandosol
Tullamore, NSW Sodosol
Wirrinya, NSW 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 Rankins Springs NSW Tullamore NSW Wirrinya NSW
2013 576.7mm613.0mm119.6mm
2012 604.8mm641.0mm157.5mm
2011 622.3mm646.3mm170.5mm
2010 652.9mm656.3mm207.7mm
2009 605.3mm629.7mm176.2mm
2008 590.0mm636.9mm186.1mm
2007 508.8mm621.6mm164.2mm
2006 567.9mm611.7mm164.9mm
2005 608.8mm648.1mm187.4mm
2004 566.9mm626.8mm177.9mm
2003 555.5mm613.4mm184.0mm
2002 508.4mm595.3mm136.8mm
2001 548.8mm607.8mm256.5mm
2000 500.6mm547.0mm373.9mm
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

Loading

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.

Rankins Springs NSW

Tullamore NSW

Wirrinya NSW

Rankins Springs NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
Loading
Loading
Loading

Tullamore NSW

Loading
Loading
Loading

Wirrinya NSW

Loading
Loading
Loading

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: 05-12-2019 14:08pm AEST