Crop competition strategies for weed management

In today’s farming systems, weeds are controlled largely by the application of herbicides. Heavy reliance on chemicals, however, has led to issues of herbicide resistance. New trials data and information is available that provides alternative strategies to reduce weeds in crop, including integrated weed management where crop competition can play an important role. OFT contains over 40 trials on weed control by increasing crop competition. For further details on benefits of integrated weed management systems, go to:

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42 total results found Matching the current search filters and located within the visible map area.

41 results have a trial report available
22 results have source data available
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Aims:

Growers and advisers have a better understanding of the benefits of deep ripping and in particular depth of deep ripping required to optimise crop yield & profit. They also better understand where the cost is worthwhile (rainfall zones, soil types) and very importantly how long the benefit lasts for in a CTF system.

Growers and adviser… read more

Crop type: Wheat 1 trial Soil Compaction Soil amelioration
Arrino, WA
Research organisatons
Funding source

Aims:

To evaluate the relative competitiveness of durum wheat compared to barley and bread wheat, against annual ryegrass grown under different management practices tailored to influence crop competition.

Crop type: Multiple 1 trial Crop Crop Type
Hart, SA Calcarosol
Source Data Unavailable
Research organisatons
Funding source

Aims:

To independently assess the potential for current, newly released and varieties close to commercial release in various locations and environments.

Crop type: Canola 1 trial Variety
Moora, WA Brown grey sand to yellow brown at depth
Source Data Unavailable
Research organisatons
Funding source

Aims:

The GRDC project ‘Maintaining profitable farming systems with retained stubble - upper Eyre Peninsula’ aims to produce sustainable management guidelines to control pests, weeds and diseases while retaining stubble to maintain or improve soil health, and reduce exposure to wind erosion. The major outcome to be achieved is increased knowledge … read more

Crop type: Wheat 1 trial Sowing Rate Sowing Timing Sowing Method
Murlong, SA Non-wetting sand
Research organisatons
Funding source

Aims:

To investigate the potential of non-chemical options for managing barley grass in a crop is increasing crop competition by reducing row spacing and increasing sowing rate.

, SA
Research organisaton
Funding source

Aims:

Controlling barley grass in upper EP low rainfall farming systems is becoming a major issue for growers, due to the development of herbicide resistance and changing ecology of the weeds such as delayed emergence of barley grass populations.

There are effective but sometimes costly chemical options for grass weed control using pre-emerg… read more

Crop type: Wheat 1 trial Sowing Rate Sowing Row spacing
MAC Paddock S4, SA
Research organisatons
Funding source

Aims:

The GRDC project ‘Maintaining profitable farming systems with retained stubble - upper Eyre Peninsula’ aims to produce sustainable management guidelines to control pests, weeds and diseases while retaining stubble to maintain or improve soil health, and reduce exposure to wind erosion. The major outcome to be achieved is increased knowledge … read more

Crop type: Barley 1 trial Sowing Rate Sowing Method
Lock, SA Non-wetting sand
Research organisatons
Funding source

Aims:

To compare commercially available fertiliser on the performance of Schooner barley.

Crop type: Barley 1 trial Fertiliser Type
Watchupga East, VIC
Source Data Unavailable
Research organisaton

Aims:

To compare the profitability between the RR and TT system as well as between OP and Hybrid varieties within these two systems.

Crop type: Canola 1 trial Crop Type
Yuna, WA
Research organisaton
Funding sources

Aims:

To compare the profitability between the RR and TT system as well as between OP and Hybrid varieties within these two systems.

Crop type: Canola 1 trial Crop Type
Yuna, WA
Research organisaton
Funding sources

Aims:

To compare the profitability between the RR and TT system as well as between OP and Hybrid varieties within these two systems.

Crop type: Canola 1 trial Crop Type
Yuna, WA
Source Data Unavailable
Research organisaton
Funding sources

Aims:

  • To compare the competitiveness of new and existing barley varieties in the presence and absence of weeds.
  • To increase the competitiveness of a non-competitive variety through sowing time and nitrogen applications in the presence of weeds.

Crop type: Barley 1 trial Fertiliser Timing Sowing Timing
Manangatang, VIC Sandy loam
Research organisaton
Funding source

Aims:

  • To compare the competitiveness of new and existing barley varieties in the presence and absence of weeds.
  • To increase the competitiveness of a non-competitive variety through sowing time and nitrogen applications in the presence of weeds.

Crop type: Barley 1 trial Variety Type
Nhill, VIC Clay
Research organisaton
Funding source

Aims:

Controlling barley grass in upper EP farming systems is becoming a major issue for growers, due to the development of herbicide resistance and delayed weed emergence. Management options other than herbicides need to be considered to address the issue for long-term sustainability. One of the best bets for cultural control of barley grass in-crop … read more

Crop type: Wheat 1 trial Sowing Method Sowing Row spacing
Minnipa, SA Red loam
Research organisatons
Funding source

Testing crop row placement and pre-emergence herbicide options for brome grass on Mallee sand

Rick Llewellyn (CSIRO), Sam Kleeman (University of Adelaide), Chris Preston (University of Adelaide), Therese McBeath (CSIRO), Navneet Aggarwal (CSIRO), Bill Davoren (CSIRO), Vadakattu Gupta (CSIRO), Gurjeet Gill (University of Adelaide), Willie Shoobridge (CSIRO), Stasia Kroker (CSIRO), Marcus Hicks (CSIRO)

Aims:

Brome grass is the costliest weed to grain production in the Mallee region despite herbicide resistance being relatively low. This paper brings together research trials from 2015 and 2016 addressing the potential for greater efficacy of pre-emergence herbicides on brome and the potential for better crop competition on non-wetting sands. For grow… read more

Crop type: Wheat 1 trial Herbicide
Karoonda, SA
Source Data Unavailable
Research organisatons
Funding source

Aims:

The aim of this work was to explore herbicide and application timing alternatives to control annual ryegrass and other weeds on fencelines and prevent the onset of resistance. Fence lines can be a ‘breeding’ ground for glyphosate resistance evolution due to a lack of crop competition, its repeated usage and the often late applications when w… read more

Crop type: Ryegrass 1 trial Crop Protection
east Buntine, ACT
Source Data Unavailable
Research organisatons
Funding source

Barley grass in a retained stubble system - farm demonstrations

Amanda Cook, Mark Klante (SARDI), Andy Bates (Bates Ag Consulting), Bruce Heddle, Wade Shepperd, Ian Richter, Brett McEvoy and John Kelsh (SARDI)

Aims:

The GRDC Stubble project aims to improve farm profitability while retaining stubble in farming systems on upper Eyre Peninsula (EP). Weed control in stubble retained systems is an issue with reduced herbicide efficacy due to higher stubble loads especially for pre-emergence herbicides. Current farming practices have also changed weed behaviour w… read more

Crop type: Wheat 1 trial Herbicide Type Sowing Method
Minnipa Agricultural Centre, SA Red loam
Research organisatons
Funding sources

Aims:

The GRDC ‘Maintaining profitable farming systems with retained stubble - upper Eyre Peninsula’ project aims to improve farm profitability while retaining stubble in farming systems on upper Eyre Peninsula (EP). Weed control in stubble retained systems can be compromised where herbicide efficacy is limited due to higher stubble loads, especia… read more

Crop type: Medic 1 trial Stubble Management
Minnipa Agricultural Centre, SA Red loam
Research organisatons
Funding source

Aims:

  • Controlling barley grass in upper EP low rainfall farming systems is becoming a major issue for growers, due to the development of herbicide resistance and changing ecology of the weeds, such as delayed emergence of barley grass populations.
  • There are reasonably effective but costly chemical options for grass weed control usin… read more

Crop type: Wheat 1 trial Sowing Rate Sowing Method Sowing Row spacing
Minnipa Agricultural Centre, SA Red sandy loam
Source Data Unavailable
Research organisatons
Funding source

Aims:

To improve crop production by determining the effect of sowing time and sowing rate on crop yield and grain quality risks of new wheat varieties.

Crop type: Wheat 1 trial Variety Type
Mullewa Research Annex, WA
Source Data Unavailable
Research organisatons
Funding source
North East Farming Futures Mullewa Farm Improvement Group

Aims:

To demonstrate a new wheat herbicides Hussar® from Aventis, and Affinity® from CropCare for grass and broadleaf weed control.

Crop type: Wheat 1 trial Variety Type
Watchupga East, VIC
Source Data Unavailable
Research organisaton

Aims:

To identify the most effective alternate techniques and discover the impacts they have on weed control, yield and grain quality

Crop type: Wheat 1 trial Sowing Rate Sowing Row spacing Variety Type
Hart, SA Calcarosol
Research organisatons
Funding source

Weed competition in chickpeas

Jason Brand (DPIVic), Larn McMurray and Michael Lines (SARDI), Eric Armstrong and Luke Gaynor (DPI NSW)

Aims:

To determine whether varietal differences in chickpea plant architecture affect their competitiveness with ryegrass.

Crop type: Chickpeas 1 trial Variety Variety Type
Hart, SA
Source Data Unavailable
Research organisatons
Funding sources

Aims:

  • To identify lines with improved adaptation (through earlier maturity) to this practice.

Crop type: Chickpeas 1 trial Crop
Melton, SA
Source Data Unavailable
Research organisatons
Funding sources

Aims:

- To evaluate yield and competition with weeds of new wheat cultivars selected by recurrent selection for early vigour compared to common commercial cereal cultivars. 

- To evaluate current commercial wheat varieties for their ability to suppress weed seed set and to yield under high weed pressure.

Crop type: Wheat 1 trial Crop
, WA Yellow sandplain
Source Data Unavailable
Research organisatons
Funding source

Aims:

To compare the competitive nature of wheat and barley sown at different row spacing and seeding rates on grass weed competition.

Crop type: Multiple 2 trials Sowing Rate Sowing Row spacing
Birchip, VIC Marnoo, VIC
Source Data Unavailable
Research organisaton

Aims:

To compare an opportunistic break crop against fallow and wheat to better define the pros and cons of fallowing.

Crop type: Wheat 1 trial Crop Type
Ardingly South, WA
Research organisaton
Funding source

Aims:

To compare an opportunistic break crop against fallow and wheat to better define the pros and cons of fallowing.

Crop type: Wheat 1 trial Crop Type
Ardingly South, WA
Research organisaton
Funding source

The effect of single disc seeding operation on herbicide crop tolerance in wheat

Tristan Cornwall (University of Western Australia); Ken Flower (University of Western Australia); Mike Ashworth, (WANTFA)

Aims:

To ascertain the crop safety of pre-emergent (IBS) herbicides when used with differing seeding systems and sowing speeds.

Crop type: Wheat 1 trial Herbicide Type Herbicide Rate Sowing Rate Sowing Method
Cunderdin, WA Deep sand over clay sand
Research organisatons
Funding source

Aims:

To trial a number of herbicide treatments applied to field peas, chickpeas, lentils and lupins to determine effective weed control and their effects on the crops.

Crop type: Multiple 1 trial Herbicide Herbicide Type Herbicide Rate
Watchupga East, VIC
Source Data Unavailable
Research organisaton

Aims:

The GRDC project ‘Maintaining profitable farming systems with retained stubble - upper Eyre Peninsula’ aims to improve farm profitability while retaining stubble in farming systems on upper Eyre Peninsula (EP). One of the barriers to retaining stubble is the perceived reduction in pre-emergent herbicide effectiveness (efficacy) in stubbles. … read more

Crop type: Wheat 1 trial Herbicide Type Sowing Timing Stubble Management Stubble Height
Minnipa Agricultural Centre, SA Red loam
Research organisatons
Funding source

Aims:

To demonstrate Scope barley and the performance of Clearfield herbicides on brome grass in a non-wetting scenario, and to investigate the benefit of soil wetter and pre-emergence herbicides in improving this performance.

Crop type: Barley 1 trial Herbicide Type
Badgingarra, WA Pale deep sand
Source Data Unavailable
Research organisatons
Funding source

Aims:

The aim of the demonstration is to assess the growth and yield of barley and wheat growing in a range of different established perennial pasture species.

Crop type: Wheat 1 trial Crop
Badgingarra, WA Pale deep sand
Source Data Unavailable
Research organisaton
Funding sources

Aims:

To evaluate the effectiveness of skip row spacing of wheat in a medium to low rainfall environment.

Crop type: Wheat 1 trial Sowing Row spacing
Buntine, WA Loam
Research organisaton
Funding source

Aims:

Growers and advisers have a better understanding of the benefits of deep ripping and in particular depth of deep ripping required to optimise crop yield & profit. They also better understand where the cost is worthwhile (rainfall zones, soil types) and very importantly how long the benefit lasts for in a CTF system.

Growers and adviser… read more

Crop type: Lupins 1 trial Soil Type Soil Compaction Soil amelioration
Walkaway, WA
Research organisatons
Funding source

Aims:

Growers and advisers have a better understanding of the benefits of deep ripping and in particular depth of deep ripping required to optimise crop yield & profit. They also better understand where the cost is worthwhile (rainfall zones, soil types) and very importantly how long the benefit lasts for in a CTF system.

Growers and adviser… read more

Crop type: Canola 1 trial Soil Compaction Soil amelioration
Mullewa, WA
Research organisatons
Funding source

Aims:

Growers and advisers have a better understanding of the benefits of deep ripping and in particular depth of deep ripping required to optimise crop yield & profit. They also better understand where the cost is worthwhile (rainfall zones, soil types) and very importantly how long the benefit lasts for in a CTF system.

Growers and adviser… read more

Crop type: Lupins 1 trial Soil Compaction Soil amelioration
Mullewa, WA
Research organisatons
Funding source

Aims:

Growers and advisers have a better understanding of the benefits of deep ripping and in particular depth of deep ripping required to optimise crop yield & profit. They also better understand where the cost is worthwhile (rainfall zones, soil types) and very importantly how long the benefit lasts for in a CTF system.

Growers and adviser… read more

Crop type: Wheat 1 trial Soil Compaction Soil amelioration
Ogilvie, WA
Research organisatons
Funding source

Aims:

  • Serradella is a useful pasture species on the sandy soils of the West Midlands. But it has two major weaknesses: weed control (particularly radish and capeweed) and a lack of early biomass production. By sowing serradella with a Clearfield Barley variety (Scope or Spartacus) and using Clearfield (Imidazolinone) herbicides both of these w… read more

Crop type: Barley 1 trial Crop
Moora, WA Yellow deep sand
Source Data Unavailable
Research organisaton
Funding source

Aims:

To investigate the control of brome and barley grass in Meering wheat and Balleon barley.

Crop type: Multiple 1 trial Herbicide Type
Watchupga East, VIC
Source Data Unavailable
Research organisaton

Aims:

To assess the impact of different seeding systems on crop establishment in water repellent soil.

Crop type: Wheat 1 trial Soil amelioration
Badgingarra, WA Sandy gravel
Source Data Unavailable
Research organisatons
Funding sources

Aims:

To evaluate the response of different barley varieties to various aspects of crop management. Variables examined included nitrogen timing, weed management, weed competition and row spacing.

Crop type: Barley 2 trials Fertiliser Timing Herbicide Application Sowing Row spacing Variety Type
St Arnaud, VIC Woomelang, VIC
Trial Report Unavailable Source Data Unavailable
Research organisaton
Funding source