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Managing legume leys; residues and fertilisers to enhance the sustainability of wheat cropping systems in Australia.[J].Anthony M. Whitbread;Graeme J. Blair;Rod D.B. Lefroy.Soil & Tillage Research.2000, 1
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Changes in soil organic matter with cropping as measured by organic carbon fractions and 13 C natural isotope abundance.[J].Rod D. B. Lefroy;Graeme J. Blair;Wayne M. Strong.Plant and Soil.1993, 1