The potential role of companion and intercropping systems in Australian grain farming. Should we be considering them? (Factsheet)
This Grains Research and Development Corporation (GRDC) factsheet discusses the potential role of companion cropping and intercropping in Australian grain farming systems. Prepared by researchers from the South Australian Research and Development Institute (SARDI), the paper reviews international and Australian research on growing two or more crop species together in the same paddock to improve productivity, resource use and system resilience. It examines possible benefits such as improved nitrogen supply from legumes, better weed suppression, greater biodiversity and more efficient use of water, nutrients and light, while also outlining practical challenges including crop competition, machinery constraints, herbicide management and difficulties with harvest and grain separation. Although intercropping is widely used in other parts of the world, the paper explains that adoption in Australian broadacre systems has been limited and further research is needed to determine where it may be practical and profitable.#
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