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One-off soil inversion results in the complete burial of the water repellent topsoil in a layer typically at a depth of 15 to 35 cm, and brings to the surface a layer of wettable subsoil.
One method of weed control is to remove weed seeds in the fallow, stubble and pre-sowing phase.
Silver grass is an annual grass occurring in both cropping and grazing regions across Australia. There are several species, the most common being Vulpia myuros and V. bromoides.
Herbicide resistance is the inherited ability of an individual plant to survive a herbicide application that would kill a normal population of the same species.
Windmill grass (Chloris truncata) is a native species and is the tenth most common summer weed species in the Western Australian wheatbelt.
Annual ryegrass (Lolium rigidum) is one of the most serious and costly weeds of annual winter cropping systems in southern Australia.
‘Risk-aware’ growers can implement strategies to reduce and avoid unnecessary introduction and spread of weeds.
Western Australia has seen major changes to the agronomic system, including a drying climate, more intensive cropping rotations and the widespread adoption of no-till.
Every grain grower has seen how well weeds grow when they have a blocked seeding tube creating extra-wide row spacing.
In-crop weed competition causes losses costing around $1 billion per annum for Western Australia.