Harvest weed control in the southern high-rainfall zone

2016

Research organisatons
Funding source

Trial details

Researcher(s) Kate Coffey
Roger Lawes
Michael Straight
Year(s) 2016
Contributor Riverine Plains
Trial location(s) Telford, VIC
Harvest weed control in the southern high-rainfall zone locations
Aims

The aim of this work is to understand if growers can reduce soil weed seedbanks in high-yielding high-rainfall zones by adopting harvest weed seed control (HWSC) practices.

Key messages

• Herbicide-resistant annual ryegrass (Lolium rigidum) is increasingly becoming a challenge for growers across southern Australia.
• Harvest weed seed control (HWSC) — the collection and/or destruction of weed seeds at harvest — is a non-chemical control method, which can be used to reduce the seedbank of weeds such as annual ryegrass.
• A major premise of HWSC is that the targeted weed species retain a high proportion of their total seed production at crop maturity.
• Where pre-emergent or in-crop herbicides have not been applied, ryegrass weeds are shedding before wheat is harvested.

Lead research organisation Southern Farming Systems
Host research organisation Riverine Plains
Trial funding source GRDC SFS00032
Related program N/A
Acknowledgments

This project is funded by GRDC project SFS00032 Harvest weed seed control for the southern high rainfall zone and led by Southern Farming Systems. Thanks also go to Baker Seed Co, the Trevethan family and the Inchbold family as farmer co-operators during 2015 and
2016.


Other trial partners Farmlink and Mackillop Farm Management Group
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Harvest: Method
  • Management systems: Integrated weed management
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Telford 2016

Sow date 28 April 2016
Harvest date Not specified
Plot size 2m x 15m
Plot replication 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
Telford, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Telford, VIC 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 Telford VIC
2016 458.4mm
2015 439.3mm
2014 441.4mm
2013 437.6mm
2012 482.1mm
2011 499.8mm
2010 503.9mm
2009 435.7mm
2008 435.1mm
2007 421.2mm
2006 429.2mm
2005 449.0mm
2004 426.3mm
2003 459.0mm
2002 424.1mm
2001 435.4mm
2000 437.1mm
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

Telford VIC 2016


Observed climate information

Rainfall trial gsr (mm) 604mm

Derived climate information

Telford VIC

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 report and links

2016 trial report



Trial last modified: 31-08-2018 15:04pm AEST