Crop competition is one of the WeedSmart Big 6 and it is a really important tool.

Crop competition can impact the system in two ways:

  • Weeds

    There is the impact of the crop on the weeds. A competitive crop can suppress seed set and growth of weeds.

  • Crop

    It can also impact of the growth of weeds in the crop. A competitive crop suffers less yield loss at the hands of the weeds.

A competitive crop allows herbicides, particularly pre-emergent herbicides to work more effectively.

A competitive crop also means the weeds have to grow up to get the light, making the seed set higher and easier to capture and destroy through harvest weed seed control tools.

We have gathered experts from around the country to deliver research and practical information on aspects of crop competition in winter and cropping systems.

Module 1

Dr John Broster from the Graham Centre at Charles Sturt University will begin by giving us an overview of herbicide resistance evolution in Australia.

Dr John Broster, Charles Sturt Univesity

Module 2 - 5

Dr Gurjeet Gill from the University of Adelaide has a long history of crop competition research and extension in southern farming systems. Gurjeet will cover seeding rate, row spacing and cultivar in winter cropping systems.

Dr Gurjeet Gill

Module 6

Dr Catherine Borger from the Department of Primary Industries and Regional Development in Western Australia will cover research exploring how changing the orientation (i.e. seeding direction) of the crop can impact weed suppression.

Module 7 - 9

Dr Michael Widderick from the Queensland Department of Agriculture and Fisheries will wrap up the course with a Northern cropping systems focus, exploring vigorous crop traits, seeding rate and row spacing in summer cropping systems.

Course content & how it works

  • 1

    Welcome!

    • How this course works
    • Please read the following before progressing with this course
  • 2

    Introduction

    • Introduction with Peter Newman
  • 3

    Section 1: Understanding herbicide resistance evolution in Australia

    • Module 1 - Understanding herbicide resistance evolution in Australia with Dr John Broster
  • 4

    Section 2: Understanding crop competition in winter cropping systems

    • Module 2 - Increasing seed rate in winter cropping systems with Gurjeet Gill
    • Module 2 Quiz
    • Module 3 - Early sowing of winter crops to increase yield and crop competition with Dr Gurjeet Gill
    • Module 3 Quiz
    • Module 4 - Delivering competition with narrow row spacing with Dr Gurjeet Gill
    • Module 4 Quiz
    • Module 5 - Delivering competition with vigorous crop traits with Dr Gurjeet Gill
    • Module 5 Quiz
    • Module 6 - East-west sowing to suppress weeds in winter cropping with Dr Catherine Borger
    • Module 6 Quiz
  • 5

    Section 3: Understanding crop competition in summer cropping systems

    • Module 7 - Delivering competition with vigorous crop traits in summer cropping systems with Dr Michael Widderick
    • Module 7 Quiz
    • Module 8 - Delivering competition with narrow row spacing in summer cropping systems with Dr Michael Widderick
    • Module 8 Quiz
    • Module 9 - Increasing seeding rate in summer cropping systems with Dr Michael Widderick
    • Module 9 Quiz
    • Thank you!
  • 6

    Bonus material

    • Q&A webinar – hosted by Peter Newman with Gurjeet Gill and Michael
    • Crop Competition resources from WeedSmart and GRDC
    • Thanks for joining in! Let us know what you thought.

So if you are keen to learn more about crop competition, click below to get started!

Get started now