Weed control using narrow windrows vs EMAR chaff deck


Research organisaton
Funding source

Trial details

Researcher(s) Helen McMillan (CWFS)
Year(s) 2016
Contributor Central West Farming Systems
Trial location(s) Site 1, Loxton, SA
Weed control using narrow windrows vs EMAR chaff deck locations

To investigate the impact that two different harvest weed seed control (HWSC) methods – narrow windrowing of header trash and the Esperance Mobile Ag Repairs (EMAR) chaff deck – have on reducing the weed burden in the following crop.

Key messages
  • Concentrating the header trash into rows prevents spreading of weed seeds across the paddock. Additionally, it allows for site specific weed management and weed seed destruction through strategic burning.
  • A low cutting height (10cm) can allow greater than 95% weed seed capture and placement
    into rows. However this harvest height can impact harvest cost, speed and efficiency.
Lead research organisation Central West Farming Systems
Host research organisation N/A
Trial funding source GRDC CWF00020
Related program N/A

CWFS would like to acknowledge the support provided by Matthew Burkitt and Northparkes Mine; without their in-kind support the trials would not have been possible. CWFS would also like to acknowledge Nick Hill,
former CWFS project manager and the CWFS Agronomy Team who were responsible for the data collection reported in this paper.

Other trial partners SPAA
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Crop type Not specified
Treatment type(s)
  • Crop: Protection
Trial type Article/commentary
Trial design Not applicable

Loxton 2016

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
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 1, Loxton, SA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 1, Loxton, SA Calcarosol
National soil grid Source
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



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Site 1, Loxton SA

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

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

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Trial last modified: 26-11-2019 15:11pm AEST