Researcher(s) |
Mick Brady (DEDJTR) Chris Davies (DEDJTR) Chris Korte (DEDJTR) Dave Monks (DEDJTR) |
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Year(s) | 2014 |
Contributor | Mallee Sustainable Farming Inc. |
Trial location(s) |
Ouyen, VIC
|
Over recent seasons adoption of stubble retention has plateaued in the Mallee and some growers are reducing the area of stubble retained until the next growing season. An experiment was undertaken to identify potential improvements in stubble management so this trend could be reversed. The experiment examined how different amounts and types of stubble impact on subsequent water availability and crop yield.
Lead research organisation | N/A |
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Host research organisation | N/A |
Trial funding source | GRDC MSF00003 |
Trial funding source | Mallee CMA |
Related program |
Maintaining profitable farming systems with retained stubble |
Acknowledgments |
Funding for the experiment was provided by GRDC and DEDJTR as part of the GRDC project “Maintaining profitable farming systems with retained stubble in the Mallee”. Mr Dean and Jarrod Munro of Ouyen are acknowledged for providing the experimental site. Debra Partington is acknowledged for providing statistical analysis. |
Other trial partners | Mallee Sustainable Farming |
Crop types | Oilseed: Canola Cereal (Grain): Wheat |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Randomised,Replicated,Blocked |
Sow date | Not specified |
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Harvest date | Not specified |
Plot size | 4.8m x 15m |
Plot replication | 5 |
Other trial notes |
The experiment was located at Ouyen using 4.8m by 15m plots, replicated in five blocks. In 2013 different stubbles were generated. In 2014 wheat and canola were grown on the range of stubble treatments. Growing season rainfall at the site was 147.8 mm in 2013 and 115.6 mm in 2014. In 2013 plots were sown in either Mace wheat or Rasina vetch, each at two fertiliser rates – High input of fertiliser (20kg/ha of N & 6kg/ha of P followed by 20kg/ha of N top-dressed) and Low input of fertiliser (2.7 kg/ha of N & 6kg/ha of P). To further generate differences in stubble, the crops were harvested at two heights in 2013 (<15 cm and >30 cm above the ground). Measurements in 2013 included post-harvest stubbles. In 2014 plots were sown in either Corack wheat or 43C80 Clearfield canola. In 2014 measurements included pre-sowing stubbles, soil moisture and grain yields. |
Sow date | Not specified |
---|---|
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Other trial notes |
The experiment was located at Ouyen using 4.8m by 15m plots, replicated in five blocks. In 2013 different stubbles were generated. In 2014 wheat and canola were grown on the range of stubble treatments. Growing season rainfall at the site was 147.8 mm in 2013 and 115.6 mm in 2014. In 2013 plots were sown in either Mace wheat or Rasina vetch, each at two fertiliser rates – High input of fertiliser (20kg/ha of N & 6kg/ha of P followed by 20kg/ha of N top-dressed) and Low input of fertiliser (2.7 kg/ha of N & 6kg/ha of P). To further generate differences in stubble, the crops were harvested at two heights in 2013 (<15 cm and >30 cm above the ground). Measurements in 2013 included post-harvest stubbles. In 2014 plots were sown in either Corack wheat or 43C80 Clearfield canola. In 2014 measurements included pre-sowing stubbles, soil moisture and grain yields. |
Rainfall trial gsr (mm) | 147.8mm |
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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.