The interaction between wheat (Triticum aestivum) establishment timing and pre-emergent herbicides choice on annual ryegrass (Lolium rigidum Gaud.) growth and competition.

2020

Research organisatons
Funding source

Trial details

Researcher(s) N/A
Year(s) 2020
Contributor School of Agriculture and Environment - The University of Western Australia
Trial location(s) Dandaragan, WA
Pingelly, WA
Tammin, WA
The interaction between wheat (Triticum aestivum) establishment timing and pre-emergent herbicides choice on annual ryegrass (Lolium rigidum Gaud.) growth and competition. locations
Aims

This research aims to investigate the effect of wheat time of sowing and seeding rate, on the effectiveness and degradation of pre-emergent herbicides commonly used to control annual ryegrass in no tillage farming systems.

Key messages
  • A combination of dry sowing and a pre-emergent herbicide choice yields greater than the standard sowing time.
  • The seed production of ARG at the end of the season correlates with the pre-emergent herbicide soil persistence.
  • Increasing crop seeding rates may affect ARG seed production at some sites.
Lead research organisation Australian Herbicide Resistance Initiative
Host research organisation N/A
Trial funding source GRDC UOA1707-005RTX
Related program N/A
Acknowledgments

This research was funded by the Grains Research Development Corporation of Australia (GRDC). We also thank Mr. Shane Baxter for his excellent support as a field research assistant.


Other trial partners Living Farm
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Method

Crop types Cereal (Grain): Wheat Weed: Ryegrass
Treatment type(s)
  • Herbicide: Type
Trial type
Trial design

Dandaragan 2020 Wheat

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

Pingelly 2020 Ryegrass

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

Pingelly 2020 Wheat

Sow date 28 April 2020
Harvest date Unknown
Plot size Not specified
Plot replication Not specified

Tammin 2020 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
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
Dandaragan, WA Not specified
Pingelly, WA Not specified
Tammin, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Dandaragan, WA Tenosol
Pingelly, WA Sodosol
Tammin, WA Sodosol
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.

Dandaragan WA

Pingelly WA

Tammin WA

Dandaragan WA

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

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Tammin WA

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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

2020 trial report



Trial last modified: 20-03-2023 15:37pm AEST