Managing clethodim resistant ryegrass in canola with crop competition and pre-emergent herbicides

2017
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Sam Kleemann, Gurjeet Gill, Chris Preston (University of Adelaide) and Sarah Noack (Hart Field Site Group)
Year(s) 2017
Contributor Hart Field Site Group
Trial location(s) , SA
Site 5, Hart, SA
Managing clethodim resistant ryegrass in canola with crop competition and pre-emergent herbicides locations
Aims

To demonstrate that crop competition afforded by a hybrid canola in combination with pre-emergent herbicides can reduce ryegrass seed set.

Key messages
  • Two seasons of trials have demonstrated there are differences in crop vigour / biomass production within open pollinated varieties ATR Stingray (less competitive) and ATR Bonito (more competitive) relative to a competitive hybrid variety Hyola559TT.
  • In 2017, at Hart and Roseworthy both OP and hybrid varieties provided similar crop competition for ryegrass control.
  • A combination of effective pre-emergent herbicides with competitive canola varieties combines two tactics to reduce ryegrass seed set.
Lead research organisation School of Agriculture, Food and Wine - The University of Adelaide
Host research organisation Hart Field Site Group
Trial funding source GRDC UCS00020
Related program N/A
Acknowledgments

We are grateful to GRDC (Grains Research and Development Corporation) for providing project funding (project UCS00020), PacSeeds for supplying seed, and Jerome Martin for providing technical support.


Other trial partners Hart Field Site Group
Download the trial report to view additional trial information

Method

Crop type Canola
Treatment type(s)
  • Herbicide
  • Herbicide: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

2017

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

Hart 2017

Sow date 3 May 2017
Harvest date Not specified
Plot size 1.75m x 10m
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Hart

@T1: Untreated control @T2: Propyzamide (1.0 L/ha) pre @T3: Butisan (1.5 L/ha) pre @T4: Altiplano (3 kg/ha) pre @T5: Atrazine (1.1 L/ha) pre + atrazine (1.1 L/ha) post @T6: Propyzamide (1 L/ha) pre + atrazine (1.1 kg/ha) post @T7: Butisan (1.5 L/ha) pre + atrazine (1.1 kg/ha) post @T8: Altiplano (3 kg/ha) pre + atrazine (1.1 kg/ha) post
# Variety
Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha)
1 ATR Bonito 1.55 1.65 1.55 1.63 1.7 1.47 1.82 1.7
1 ATR Bonito 1.41 1.42 1.36 1.36 1.51 1.35 1.5 1.38
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT

Grain yield t/ha


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Trial results Roseworthy

@T1: @T2: @T3: @T4: @T5: @T6: @T7: @T8:
# Variety
Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha) Grain yield (t/ha)
1 ATR Bonito 1.55 1.65 1.55 1.63 1.7 1.47 1.82 1.7
1 ATR Bonito 1.41 1.42 1.36 1.36 1.51 1.35 1.5 1.38
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
1 ATR Bonito
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT
2 Hyola559TT

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
, SA Not specified
Site 5, Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, SA Chromosol
Site 5, Hart, SA Chromosol
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 SA Site 5, Hart SA
2017 604.9mm650.0mm
2016 593.5mm659.9mm
2015 562.0mm597.6mm
2014 590.7mm638.6mm
2013 581.5mm622.8mm
2012 588.9mm654.6mm
2011 603.1mm683.8mm
2010 602.9mm686.7mm
2009 589.7mm669.9mm
2008 560.7mm633.9mm
2007 580.7mm649.9mm
2006 587.1mm651.2mm
2005 599.5mm675.4mm
2004 577.6mm633.0mm
2003 570.6mm652.2mm
2002 541.3mm649.4mm
2001 531.0mm674.5mm
2000 521.5mm625.6mm
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.

SA

Site 5, Hart SA

SA

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Site 5, Hart SA

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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: 09-12-2019 19:24pm AEST