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Testing control of annual ryegrass in the HRZ using faba beans, pre-emergent herbicides and desiccation

2016
CC BY 4.0

Research organisation
Funding sources
Southern Farming Systems
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> University of Adelaide

Trial details

Researcher(s) Paul Breust
Hugh Burbury
Jim Caldwell
Corinne Celestina
Gurjeet Gill
Christopher Preston
Year(s) 2016
Contributor Southern Farming Systems
Trial location(s) Lake Bolac, VIC
Testing control of annual ryegrass in the HRZ using faba beans, pre-emergent herbicides and desiccation locations
Aims

To assess cultural control practices in combination with pre-emergent herbicides for the management resistant ARG at the Lake Bolac research site.

Key messages
  • Annual ryegrass (ARG) establishment and seed head numbers increased significantly under the faba bean herbicide strategies used in 2016
  • There were no significant differences between herbicide strategies in 2016, with the legacy of past years’ management strategies not creating any difference in yields this year
  • Over the five years of the trial, RT Canola in 2014 was been the best option to maintain ARG seed head numbers
  • ARG seed head numbers increased by 35% in 2016 following the high cost weed strategy (strategy C) in combination with HWS prototype mill
  • ARG seed head numbers increased by 148% (low cost, strategy A) and 171% (mid cost, strategy B) in 2016
  • Effects of pre-harvest desiccations in 2016 will not be evidenced until emergence in 2017 
Lead research organisation Southern Farming Systems
Host research organisation N/A
Trial funding source GRDC UA00149
Trial funding source University of Adelaide
Related program N/A
Acknowledgments

This project has been co-funded by the University of Adelaide and GRDC (UA00149). Thanks to Neil Vallance for hosting the trial site and to Andrew Whitlock and Brendan Torpy from Precision Agriculture for compiling yield monitor data. Thanks to Andy Medlyn at Harbergers Ag for sowing the trial with their Equaliser seeder bar which did a fantastic job. Thanks to SFS staff and casuals who assisted in the trial including: Jim, Hugh, Gina and Jon. 
Other trial partners University of Adelaide and La Trobe University
Download the trial report to view additional trial information

Method

Crop type Grain Legume: Faba beans
Treatment type(s)
  • Herbicide : Type
Trial type Experimental
Trial design Unknown

Lake Bolac 2016

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

A. (low cost): Terbyne Extreme 1 kg/ha, Boxer Gold 2.5 L/ha IBS. Clethodim 0.5L/ha, Factor 0.18kg/ha, Uptake (Spray Oil) 1 L/ha @ GS13. Gramoxone 0.8 L/ha, BS1000 (Wetting agent) 60 ml/ha @ desiccation

B. (mid cost): Terbyne Extreme 1kg/ha, Boxer Gold 2.5 L/ha IBS. Clethodim 0.5L/ha, Factor 0.18kg/ha, Uptake (Spray Oil) 1 L/ha @ GS13. Gramoxone 0.8 L/ha, BS1000 (Wetting agent) 60 ml/ha @ desiccation

C. (high cost): Terbyne Extreme 1 kg/ha, Propyzamide 1.11 L/ha IBS. Paraquat* 250 1.2 L/ha PSPE, Clethodim 0.5 L/ha, Factor 0.18kg/ha, Uptake (Spray Oil) 1 L/ha @ GS13. Gramoxone 0.8 L/ha, BS1000 (Wetting agent) 60 ml/ha @ desiccation
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
Lake Bolac, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Lake Bolac, VIC Sodosol
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 Lake Bolac VIC
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Climate

Lake Bolac VIC 2016

Observed climate information

Rainfall avg ann (mm) 538.2mm
Rainfall trial total (mm) 658.2mm

Derived climate information

Lake Bolac VIC

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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

2016 trial report



Trial last modified: 06-09-2017 11:21am AEST