Research from one of southern Australia's longest-running crop trials has found soil tillage failed to boost grain yields within western Victoria, ABC reports.
Roger Armstrong, from the Victorian Department of Economic Development, said a study at Longerenong focused on high-quality soils.
"Tillage, at least in the short-term, is not having any direct impact on grain yields," he said.
"However, if you were to go to the more sodic clay soils that dominate the southern Wimmera, or conversely if you move to the much more sandy top soils and hard-setting soils in the Mallee, where water is even more shorter, then it could have a really quite significant impact.
"What I suspect is happening is it's horses for courses.
"Management practices have to be tailored for their environment."
The Sustainable Cropping Rotations in Mediterranean Environments study at Longerenong examines the long-term effect of cropping and pastures on the soil health and productivity.
The study is in its 17th year and has nine different rotations and tillage treatments.
Read more HERE.
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