12 year study show high fertility best for yield and soil

By Bob Freebairn
Updated July 9 2018 - 8:55am, first published 5:00am
Professor Ram Dalal, University of Qld School of Agriculture and Food Sciences, a recent awardee of an AM for his research.
Professor Ram Dalal, University of Qld School of Agriculture and Food Sciences, a recent awardee of an AM for his research.

In a 12-year research study comparing continuous cropping with various rotations, soil organic matter increased in the rotation that included a four-year perennial pasture grass plus legume phase. When the pasture phase was followed by continuous wheat soil organic carbon gradually declined to the original level by the sixth grain crop. 

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