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Diagnostic Agronomy Workshop Flood Irrigation – the Future

Diagnostic Agronomy Workshop Flood Irrigation – the Future. Russell Ford Manager – Rice Research Australia. Rice Production Area. Improving operational efficiency and Water Use Efficiency. Hi manual input for irrigation control – telemetry Slow water on/water off timings

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Diagnostic Agronomy Workshop Flood Irrigation – the Future

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  1. Diagnostic Agronomy WorkshopFlood Irrigation – the Future Russell Ford Manager – Rice Research Australia

  2. Rice Production Area

  3. Improving operational efficiency and Water Use Efficiency • Hi manual input for irrigation control – telemetry • Slow water on/water off timings • Weakness of traditional systems = perimeter banks • all turning must be done within 3-5 ha basins • Problems • Limits ability to adopt precision ag systems • Compaction of “sensitive” soils (high clay, sodic) • Weed seed reserve on banks

  4. Traditional ‘natural’ contour basins

  5. Lasered contour basins

  6. Lasered contour, side-ditch delivery

  7. Kooloos v-bay

  8. Level basin – beds/furrows

  9. From syphons to bankless

  10. Conversion from syphons to bankless

  11. System overview

  12. Bankless channel

  13. Flow velocity through 900 mm MIL stop • Bay 1 into Bay 2 - 14.4 ML/day • mean velocity = 0.402 m/s • avg mid-stream velocity = 0.510 m/s • Bay 2 into Bay 3 – 8.6 ML/day • mean velocity = 0..252 m/s • avg mid-stream velocity = 0.314 m/s • Bay 3 into Bay 4 – 24.7 ML/day • mean velocity = 0..599 m/s • avg mid-stream velocity = 0.683 m/s

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