Researcher(s) |
Steve Tillbrook Matt Willis |
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Year(s) | 2017 |
Contributor | Northern Agri Group |
Trial location(s) |
Buntine,
Arrino, WA Cunderdin, WA |
To compare the yield, profitability and level of weed control of three canola herbicide systems (TT, RR and RT) using a combination of pre-emergent herbicides and canola varieties. The benefit of hybrid canola varieties compared to open-pollinated (OP) varieties was also investigated in the northern WA Wheatbelt by Bayer Crop Science and Nufarm Australia
• The highest gross margin and greatest level of weed control were both achieved by using a hybrid Roundup Ready® (RR) canola variety in an RR canola system.
• Triazine tolerant (TT) canola systems are highly reliant on the annual ryegrass (ARG) being susceptible to clethodim. In a site with confirmed clethodim resistant populations the level of weed control was commercially unacceptable in all TT treatments.
• The dual herbicide tolerant (RT) canola system treatments generated a higher gross margin compared to traditional TT systems when used in a situation with a high weed burden.
• The addition of propyzamide to a TT canola system was shown to be beneficial across all three trials, with improved weed control and higher gross margins compared to trifluralin.
Lead research organisation | N/A |
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Host research organisation | N/A |
Trial funding source | Bayer |
Trial funding source | Nufarm Ltd |
Related program | N/A |
Acknowledgments |
Thanks to the Mike Dodd, James Dempster and Chris Syme for hosting the trial sites. Thanks to Living Farm for sowing, spraying and harvesting the trial. Thanks to Imtrade Australia for their contribution at the Liebe Group site. Thanks to Rick Horbury (Bayer Crop Science) for setting up the trial and assisting throughout the season. Thanks to Debbie Gillam (MIG), Carlie Rowe (MIG), Michael MacPherson (Imtrade Australia), Steve Tillbrook (Nufarm), Terry Alderdice (Syngenta) and Tabea Becker (Bayer Crop Science) for |
Other trial partners | Not specified |
Crop type | Oilseed: Canola |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Replicated |
Sow rate or Target density | 1.7 kg/ha 3000TR, 1.4 kg/ha InVigor T4510, 1.7 kg/ha InVigor 3520RR, or 1.9 kg/ha ATR-Bonito (target 35 plants per m2) |
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Sow date | 24 April 2017 |
Harvest date | Not applicable |
Plot size | 20m x 2m |
Plot replication | 3 |
Psuedoreplication | N |
Fertiliser |
24/04/17: 100 kg/ha Gusto Gold + 80 kg/ha urea 15/08/17: 50 L/ha UAN |
Seed treatment | EverGol® Xtend 65 mL/100 kg + Poncho® Plus 500 mL/100 kg |
Sow rate or Target density | 1.7 kg/ha 3000TR, 1.4 kg/ha InVigor T4510, 1.7 kg/ha InVigor 3520RR, or 1.9 kg/ha ATR-Bonito (target 35 plants per m2) |
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Sow date | 3 May 2017 |
Harvest date | Not applicable |
Plot size | 20m x 2m |
Plot replication | 3 |
Psuedoreplication | N |
Fertiliser |
03/05/17: 120 kg/ha Gusto Gold + 50 kg/ha urea 15/08/17: 60 L/ha UAN |
Seed treatment | EverGol® Xtend 65 mL/100 kg + Poncho® Plus 500 mL/100 kg |
Sow rate or Target density | 1.7 kg/ha 3000TR, 1.4 kg/ha InVigor T4510, 1.7 kg/ha InVigor 3520RR, or 1.9 kg/ha ATR-Bonito (target 35 plants per m2) |
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Sow date | 28 April 2017 |
Harvest date | Not applicable |
Plot size | 20m x 2m |
Plot replication | 3 |
Psuedoreplication | N |
Fertiliser |
28/04/17: 120 kg/ha Gusto Gold + 50 kg/ha urea 15/08/17: 80 L/ha UAN |
Seed treatment | EverGol® Xtend 65 mL/100 kg + Poncho® Plus 500 mL/100 kg |
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.