Harvest weed seed control – narrow windrow burning paddock case studies

2015
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Gurjeet Gill (UoA)
Peter Hooper (Hart)
Sam Kleemann (UoA)
Sarah Noack (UoA)
Christopher Preston (UoA)
Year(s) 2015
Contributor Hart Field Site Group
Trial location(s) Hart, SA
Harvest weed seed control – narrow windrow burning paddock case studies locations
Aims

To assess the effectiveness of narrow windrow burning practices in the Mid North as a late weed seed control tactic against ryegrass in canola and wheat.

Key messages
  • Narrow windrow burning can be an effective tactic against ryegrass provided:
    • 1) weed seeds are captured and concentrated at swathing & harvest
    • 2) the burn heat and duration are enough to kill weed seeds.
  • Annual ryegrass control in canola was more variable than last season with 37-86% control of the seed captured and concentration in the windrow. Higher control (86-93%) was achieved for wheat residues concentrated into narrow windrows.
Lead research organisation Hart Field Site Group
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments

The financial assistance of GRDC is gratefully acknowledged. We also wish thank Malinee Thongmee (UA) for providing technical assistance and all eight growers for allowing us to sample their paddocks.


Other trial partners University of Adelaide
Download the trial report to view additional trial information

Method

Crop types Oilseed: Canola Cereal (Grain): Wheat
Treatment type(s)
  • Crop: Type
  • Management systems: Integrated weed management
Trial type Experimental
Trial design Replicated

Hart 2015 Canola

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

Hart 2015 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Canola

# Treatment 1
Ryegrass control (%)
1 NWB_01 54
2 NWB_02 47
3 NWB_03 37
4 NWB_06 86
5 NWB_07 66

Ryegrass control %


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Trial results Wheat

# Treatment 1
Ryegrass control (%)
1 NWB_04 86
2 NWB_05 93

Ryegrass control %


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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 last modified: 09-12-2019 19:05pm AEST