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New tactics for lost soil productivity

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DAFWA estimates more than 70 per cent of surface soils and half of subsoils across the WA wheatbelt - about 14 million hectares - are affected by soil acidity that can reduce wheat yields by up to 13 per cent... Part of the project involves extensive glasshouse trials at UWA to evaluate the effectiveness of alternative lime products, such as finer granulated limes, liquid limes and calcium nitrate as a fertiliser, based on grower interest... "We aim to establish a further three trial sites this year and by 2018 there will be six sites set up as part of this project," Mr Gazey says...
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