Crop improvement using peptide regulators of growth and N demand signalling

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This project aims to reduce reliance on nitrogen fertilisers without reducing crop yield. Global food security relies on using high-yielding grain varieties and nitrogen-based fertilisers. Since 1950, fertiliser use has increased 20-fold but the yield benefits of this use are declining. Crops only absorb 30–50 per cent of the applied fertiliser and the unused nitrogen causes environmental damage which is costly to mitigate. The novel technology platform of the project aims to develop new crops with more expansive root systems that use applied nitrogen fertiliser more efficiently and new legume varieties that symbiotically fix more nitrogen in an ecologically-sustainable way.