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Response of acid soils to lime treatment (Left paddock treated with Lime)
More than seven million hectares of south eastern Australian soils are acid. Soil acidity and associated high levels of aluminium and manganese can significantly reduce pasture productivity, costing Australian agriculture an estimated $300 million per annum in lost income.
Growing productive pastures requires a foundation of healthy soil to support and sustain it. Having healthy soils involves managing your soils according to their capability, making the right fertilizer decisions, implementing solutions for problem pastures, maintaining ground cover, and looking after the soil biology.
In partnership with the NSW Department of Primary Industries, AWI funded research determined the cost effectiveness of applying lime to acid soils for wool production.
The MASTER (Managing Acid Soils Through Efficient Rotations) project ran for over 10 years, investigating the economics of incorporated lime to manage surface and subsoil acidity, pasture and sheep productivity.
A second project looked at the economics of surface-spread lime and phosphorus to manage soil acidity, pasture and sheep productivity in non-arable areas. Until this project, very little information was available on the effectiveness and economics of surface spread lime to reduce both surface and subsoil acidity.
MASTER - click to view findings on acid soil management from the project.