Charles Sturt University
Graham Centre for Agricultural Innovation

Jhoana Opena

 Jhoana Opena

Master of Science in Agronomy/Weed Science

Impacts of the pasture legume phase on the seedbank, establishment, and growth of barnyard grass (Echinochloa crusg-galli) in drill-sown rice.

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The Australian rice industry is focused on increasing water use efficiency, hence water saving strategies such as the drill-sown rice is being encouraged. However, weeds are considered major constraint in the productivity of this system. The delay in permanent water in drill-sown rice promotes the proliferation of terrestrial weeds such as barnyard grass. The integration of annual pasture legumes in the rotation provides an opportunity to manage weeds. An understanding of the impacts of pasture legumes on the seedbank dynamics of barnyard grass is necessary to manage this weed and reduce its impact in the productivity of the drill-sown rice.

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Dr Jim Pratley, Dr Deirdre Lemerle, Dr Hanwen Wu, and Dr Jeff McCormick

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AgriFutures Australia

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