The value of dual herbicide tolerant RT canola technology for WA growers in broadacre cropping integrated weed management strategies

2014
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Justin Kudnig (Pacific Seeds)
Steve Lamb (Pacific Seeds)
Mitch Tuffley (Pacific Seeds)
Year(s) 2014
Contributor Liebe Group
Trial location(s) Toodyay, WA
The value of dual herbicide tolerant RT canola technology for WA growers in broadacre cropping integrated weed management strategies locations
Aims

To demonstrate, compare and analyse the efficacy of new herbicide combinations and sequences to achieve control of hard to kill weeds such as ryegrass and radish, whilst maximising yield in hybrid canola, using the hybrid variety Hyola 525RT (Roundup Ready + Triazine Tolerant) canola herbicide tolerant system.

Key messages
  • The combination of Triazine Tolerant (TT) and Roundup Ready (RR) herbicide provided superior control of ryegrass and wild radish over individual chemistry treatments.
  • Canola is an important rotational winter crop however, with increasing herbicide resistance across multiple chemistries in WA, growers are experiencing increasingly limited options with the current herbicide tolerance technologies available.
  • Hyola RT® Technology allows the combination of strong knockdown and residual broad-spectrum herbicides from different herbicide groups and modes of action, targeting a wide range of weed species.
  •  Hyola RT® will provide an important role in addressing the increasing Clethodim resistance problem.
  • RT® dual herbicide tolerant Hybrids have now demonstrated their value as a new competitive integrated weed management (IWM) tool, also providing increased convenience and flexibility of in-crop weed control.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Management systems: Integrated weed management
Trial type Experimental
Trial design Replicated

Toodyay 2014

Sow rate or Target density 3.5 kg/ha
Sow date 4 May 2014
Harvest date Not specified
Plot size 0.8m x 10m
Plot replication 3
Paddock history 2013 cereal
Fertiliser

04/05/2014: 120 kg/ha DAPSZC/SOP 80:20 blend

10/06/2014: 60 kg/ha Urea

30/06/2014: 120 kg/ha Ammonium sulfate

Herbicide

04/05/2014: 2 L/ha Roundup

12/06/2014: As per protocol

01/07/2014: As per protocol

Other trial notes

Paper reviewed by: Michael Lamond, Principal Project Biologist/Director, Eurofins Agrisearch

 

Contact

Steve Lamb

steve.lamb@pacseeds.com.au

0429 619 103

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Oil (%) Late annual ryegrass control (%) Grain yield (t/ha) Late wild radish control (%)
1 1. Control Untreated 51.8 0 1.67 0
2 2. 5-6Lf - RRH 900g 51.1 94.3 2.02 93.3
3 3. 2Lf RRH 900g fb 5-6Lf RRH 900g 51.7 98 2.07 94.3
4 4. Post seeding pre-emergent (PSPE) ATR 2.2kg fb 5-6Lf Select 500mL + Oil + AMS 51.4 94 2.09 98
5 5. 2Lf ATR 1.1Kg + Oil fb 5-6Lf Select 500mL + Oil 51 96.5 1.97 82.5
6 6. 2Lf - RRH 900G + ATR 1.1kg 51.6 92.5 2.13 85
7 7. 2Lf - RRH 900G fb 5-6Lf RRH 900G + ATR 1.1Kg + AMS 51.4 98 2.13 84.3
8 8. PSPE SIM 1.1Kg fb 2Lf RRH 900g fb 5-6Lf RRH 900G + ATR 1.1Kg + AMS 51.8 98 2.12 97
9 9. 2Lf RRH 900G + ATR 1.1Kg + AMS fb 5-6Lf RRH 900G + ATR 1.1kg + AMS 51.4 97 2.16 98.0a
10 10. 2.2kg ATR PSPE fb 2Lf 900g RRH fb 5-6Lf 900g RRH 51.2 96.5 2.06 96.5
11 11. IBS Treflan 2L + 2L Avadex fb 2Lf 1.1kg Atrazine + 900g RRH + Select 500mL + AMS fb 5-6Lf 1.1kg Atrazine + 900g RRH + AMS 50.9 98 2.04 98

Grain yield t/ha


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Late annual ryegrass control %


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Late wild radish control %


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Oil %


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Toodyay, WA 0 - 10cm Grey Brown Sand 6.60 0.05
Soil conditions
Trial site Soil texture
Toodyay, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Toodyay, WA Kandosol
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 Toodyay WA
2014 172.1mm
2013 184.4mm
2012 169.6mm
2011 157.6mm
2010 143.0mm
2009 181.6mm
2008 193.5mm
2007 174.9mm
2006 201.1mm
2005 164.3mm
2004 175.4mm
2003 199.3mm
2002 154.5mm
2001 138.3mm
2000 208.4mm
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

Toodyay WA 2014


Observed climate information

Rainfall trial gsr (mm) 367mm

Derived climate information

Toodyay 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 last modified: 11-09-2017 12:13pm AEST