Stubble management, pre-emergent herbicides and annual ryegrass

2007 - 2008

Research organisaton
Funding source

Trial details

Researcher(s) James Jess, James Hunt (BCG) and Brooke White (Cropfacts)
Year(s) 2007 - 2008
Contributor Birchip Cropping Group
Trial location(s) Site 1, Jil JIl, VIC
Stubble management, pre-emergent herbicides and annual ryegrass locations

To determine the effect of stubble management (standing, slashed or burnt) on the crop safety of pre-sowing herbicides, and their efficacy against Group A-resistant annual ryegrass.

Key messages
  • In 2007, herbicides applied to burnt stubble were more effective than those applied to slashed stubble. In 2008, there was no effect of stubble management on efficacy or crop safety.
  • All herbicide treatments gave adequate control ofryegrassin both years, but TriflurX® 1.5L/ha + Avadex Xtra® 1.6L/ha gave the best control in both 2007 and 2008.
  • Improved control of ryegrass did not increase yield, and the most profitable treatments were the lower rates of trifluralin.
  • Standing stubble substantially increased grain yield relative to slashed stubble (0.41 and 0.47t/ha in 2007 and 2008 respectively).
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC HFG0005
Related program N/A

This research was funded by GRDC project, HFG0005 Herbicide Resistance. The authors gratefully acknowledge the contributions made to this project by Ian and Warwick McClelland, Simon Craig, Karen Chapman, Liam Coffey and Claire Browne.

Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Multiple
Treatment type(s)
  • Herbicide: Application
  • Stubble: Management
Trial type
Trial design

Jil JIl 2007

Sow date 22 May 2007
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Jil JIl 2008

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, Jil JIl, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 1, Jil JIl, VIC 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, Jil JIl VIC

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
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

2007 trial report

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Trial last modified: 11-07-2019 17:23pm AEST