The effectiveness of on-farm methods of weed-seed collection at harvest time

2012

Research organisaton
Funding source

Trial details

Researcher(s) Alexandra Douglas (Southern DIRT)
Jane Kowald (Southern DIRT)
Year(s) 2012
Contributor Southern DIRT
Trial location(s) Site 3, Broomehill, WA
Site 3, Gnowangerup, WA
Site 1, Katanning, WA
Site 3, Kojonup, WA
Kukerin, WA
Pingrup, WA
Tarin Rock, WA
The effectiveness of on-farm methods of weed-seed collection at harvest time locations
Aims

To discuss benefits and practicalities of individual growers weed management tactics; and to assist others to decide if adopting similar methods would be beneficial on their property.

Key messages

The practical implications of harvest weed seed control are a more resilient farming system with some insurance against further resistance evolution. The combination of effective herbicide use, plus harvest weed seed control techniques has been shown to reduce and maintain weed populations at very low densities. In cropping systems, low weed densities, regardless of their herbicide resistance status, allows flexibility in crop choice, seeding time and herbicide use. This flexibility provides growers with the capacity to readily adjust farming practices in tune with seasonal and market considerations.

Lead research organisation Southern DIRT
Host research organisation N/A
Trial funding source GRDC SDI00012
Related program Regional Cropping Solutions Network
Acknowledgments

Many people have contributed to the development of this case study booklet and we thank them for their contributions and support. Thank you to the Albany Port Zone Regional Cropping Solutions Network who identified potential case study participants and provided valuable feedback in the development of the project. They identified harvest weed seed control as a major issue for the Albany Port Zone and contributed GRDC funds to see this work be conducted. Thank you to Alexandra Douglas who project managed and conducted the case study interviews, along with Jane Kowald from Southern DIRT. Alex’s experience in weeds and herbicide management is exceptional. Thanks to the Australian Herbicide Resistance Initiatives team (AHRI), particularly Brogan Micallef and Peter Newman who provided financials and background for the project. In particular, we thank the growers who participated and shared their experience of harvest weed seed management. They are Barry Gray, (South Kukeri

Other trial partners Growers: Bary Gray; Mark Pearce; Simon, Matt and Peter Kerin; James and Nina Hope; Craig Bigness; Wayne Pech; and Doug and Kerry Smith
Download the trial report to view additional trial information

Method

Crop types Barley
Oaten hay
Wheat
Canola
Field peas
Lupins
Treatment type(s)
  • Herbicide
  • Sowing: Row spacing
  • Stubble
  • Stubble: Management
Trial type
Trial design

Broomehill 2012 Barley

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

Broomehill 2012 Oaten hay

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

Broomehill 2012 Wheat

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

Broomehill 2012 Canola

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

Broomehill 2012 Field peas

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

Broomehill 2012 Lupins

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

Gnowangerup 2012 Barley

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

Gnowangerup 2012 Oaten hay

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

Gnowangerup 2012 Wheat

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

Gnowangerup 2012 Canola

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

Gnowangerup 2012 Field peas

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

Gnowangerup 2012 Lupins

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

Katanning 2012 Barley

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

Katanning 2012 Oaten hay

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

Katanning 2012 Wheat

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

Katanning 2012 Canola

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

Katanning 2012 Field peas

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

Katanning 2012 Lupins

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

Kojonup 2012 Barley

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

Kojonup 2012 Oaten hay

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

Kojonup 2012 Wheat

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

Kojonup 2012 Canola

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

Kojonup 2012 Field peas

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

Kojonup 2012 Lupins

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

Kukerin 2012 Oaten hay

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

Note: the location of the site given here is just one of seven sites reported in these case studies, and has been provided to enable map search cabability: the actual case studies included were located in South Kukerin, Tarin Rock, Katanning, Koj

Kukerin 2012 Wheat

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

Note: the location of the site given here is just one of seven sites reported in these case studies, and has been provided to enable map search cabability: the actual case studies included were located in South Kukerin, Tarin Rock, Katanning, Koj

Kukerin 2012 Canola

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

Note: the location of the site given here is just one of seven sites reported in these case studies, and has been provided to enable map search cabability: the actual case studies included were located in South Kukerin, Tarin Rock, Katanning, Koj

Kukerin 2012 Field peas

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

Note: the location of the site given here is just one of seven sites reported in these case studies, and has been provided to enable map search cabability: the actual case studies included were located in South Kukerin, Tarin Rock, Katanning, Koj

Kukerin 2012 Lupins

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

Note: the location of the site given here is just one of seven sites reported in these case studies, and has been provided to enable map search cabability: the actual case studies included were located in South Kukerin, Tarin Rock, Katanning, Koj

Kukerin 2012 Barley

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

Note: the location of the site given here is just one of seven sites reported in these case studies, and has been provided to enable map search cabability: the actual case studies included were located in South Kukerin, Tarin Rock, Katanning, Koj

Pingrup 2012 Barley

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

Pingrup 2012 Oaten hay

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

Pingrup 2012 Wheat

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

Pingrup 2012 Canola

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

Pingrup 2012 Field peas

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

Pingrup 2012 Lupins

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

Tarin Rock 2012 Barley

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

Tarin Rock 2012 Oaten hay

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

Tarin Rock 2012 Wheat

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

Tarin Rock 2012 Canola

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

Tarin Rock 2012 Field peas

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

Tarin Rock 2012 Lupins

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Other trial notes Not specified
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
Site 3, Broomehill, WA Not specified
Site 3, Gnowangerup, WA Not specified
Site 1, Katanning, WA Not specified
Site 3, Kojonup, WA Not specified
Kukerin, WA Not specified
Pingrup, WA Not specified
Tarin Rock, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 3, Broomehill, WA Sodosol
Site 3, Gnowangerup, WA Sodosol
Site 1, Katanning, WA Sodosol
Site 3, Kojonup, WA Sodosol
Kukerin, WA Sodosol
Pingrup, WA Calcarosol
Tarin Rock, WA 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 Site 3, Broomehill WA Site 3, Gnowangerup WA Site 1, Katanning WA Site 3, Kojonup WA Kukerin WA Pingrup WA Tarin Rock WA
2012 492.0mm569.6mm586.2mm316.1mm487.7mm547.4mm447.9mm
2011 461.3mm578.5mm592.7mm326.0mm475.7mm549.0mm394.3mm
2010 429.3mm546.1mm556.2mm265.7mm460.8mm527.0mm391.9mm
2009 487.0mm575.1mm584.3mm318.7mm478.2mm540.1mm420.1mm
2008 439.0mm576.5mm583.1mm319.6mm483.3mm552.1mm408.5mm
2007 396.5mm548.0mm564.5mm304.1mm457.4mm527.1mm400.0mm
2006 434.5mm557.7mm569.8mm282.2mm488.9mm547.2mm463.1mm
2005 487.3mm581.8mm595.4mm313.7mm482.8mm547.3mm405.9mm
2004 455.6mm560.2mm574.0mm297.3mm476.9mm541.1mm373.3mm
2003 427.7mm570.2mm573.7mm289.2mm487.9mm551.0mm394.2mm
2002 428.9mm548.6mm574.9mm249.7mm474.7mm534.3mm382.9mm
2001 398.4mm518.2mm542.4mm211.7mm430.2mm503.0mm388.2mm
2000 432.4mm541.5mm556.2mm295.3mm480.9mm541.1mm453.0mm
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

Kukerin WA 2012


Observed climate information

Rainfall avg ann (mm) 350mm
Rainfall avg gsr (mm) 250mm

Derived climate information

Site 3, Broomehill WA

Site 3, Gnowangerup WA

Site 1, Katanning WA

Site 3, Kojonup WA

Kukerin WA

Pingrup WA

Tarin Rock WA

Site 3, Broomehill WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Site 3, Gnowangerup WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Site 1, Katanning WA

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Site 3, Kojonup WA

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

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Pingrup WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Tarin Rock WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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: 06-08-2019 07:54am AEST