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首页> 外文会议>A policy dialogue on rice futures: rice-based farming systems research in the Mekong region >Improved irrigation water management to increase rice productivity in Cambodia
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Improved irrigation water management to increase rice productivity in Cambodia

机译：改善灌溉水管理，提高柬埔寨的稻米生产力

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摘要

There is potential for Cambodia to increase its rice production and water productivity. This can be accomplished by an improved understanding of crop water requirements, more effective use of fertilisers, improving water management practices and the expansion of dry-season irrigated farming. However, an increase in irrigation activity may place additional pressures on existing water resources. This paper outlines key understandings, findings and insights from Australian Centre for International Agricultural Research (ACIAR) Project LWR/2009/046 (Improved irrigation water management to increase rice productivity in Cambodia). Results of the field survey and crop modelling clearly indicate that it should be possible to increase dry-season rice (DSR) yields to 6-7 t/ha. The most successful farmers were already achieving these levels of yield. Modelling suggests potential yields as high as 10 t/ha under ideal conditions, but these levels may not be achievable in the field due to insect pests and diseases or, indeed, be economically optimal when inputs are considered. Laser levelling has been shown to have significant benefits for farmers, with increased yields and reduced water demands for DSR crops. However, many areas have inadequate water distribution infrastructure and unreliable access to water. It is recommended to focus on policy that will increase farmer access to reliable water resources by enabling investment in the secondary water distribution networks or increase the use of new technologies, such as small low-cost pumps for transferring water.
机译：柬埔寨有可能增加稻米产量和水生产率。这可以通过加深对农作物需水量的了解，更有效地使用肥料，改进水管理方法以及扩大旱季灌溉农业来实现。但是，灌溉活动的增加可能会给现有水资源带来更多压力。本文概述了澳大利亚国际农业研究中心（ACIAR）项目LWR / 2009/046（改善灌溉水管理以提高柬埔寨稻米生产率）的关键理解，发现和见解。田间调查和作物模拟结果清楚地表明，应有可能将旱季稻（DSR）的产量提高到6-7吨/公顷。最成功的农民已经达到了这样的产量水平。模型表明在理想条件下潜在的单产高达10吨/公顷，但是由于虫害和病害，这些水平在田间可能无法达到，或者在考虑投入时实际上在经济上是最佳的。事实证明，激光平整对农民具有显着的好处，因为它提高了产量，减少了DSR作物的需水量。但是，许多地区的配水基础设施不足，供水不可靠。建议重点关注通过增加对二次水分配网络的投资或增加对新技术的使用（例如用于输送水的小型低成本水泵）来增加农民获得可靠水资源的政策。

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  • 来源
  • 会议地点 Phnom Penh(KH)
  • 作者

    Touch Veasna; Som Bunna; Men Pagnchak Roat; Lim Vanndy; Pao Sinath; Seng Vang; Oeurng Chantha; Noum Viraday; Men Nareth; Prum Kanthel; H.E. Pich Veasna; Theng Tara; Uch Hing; Marisa Collins; John Hornbuckle; Wendy Quayle; David Smith; Roy Zandona;

  • 作者单位

    Cambodian Agricultural Research and Development Institute, Cambodia;

    Cambodian Agricultural Research and Development Institute, Cambodia;

    Cambodian Agricultural Research and Development Institute, Cambodia;

    Cambodian Agricultural Research and Development Institute, Cambodia;

    Cambodian Agricultural Research and Development Institute, Cambodia;

    Cambodian Agricultural Research and Development Institute, Cambodia;

    Department of Rural Engineering, Institute of Technology of Cambodia;

    Department of Rural Engineering, Institute of Technology of Cambodia;

    Department of Rural Engineering, Institute of Technology of Cambodia;

    Technical Service Centre, Ministry of Water Resources and Meteorology, Cambodia;

    Technical Service Centre, Ministry of Water Resources and Meteorology, Cambodia;

    Technical Service Centre, Ministry of Water Resources and Meteorology, Cambodia;

    Technical Service Centre, Ministry of Water Resources and Meteorology, Cambodia;

    CSIRO Agriculture Flagship, Griffith, Australia;

    CSIRO Agriculture Flagship, Griffith, Australia;

    CSIRO Agriculture Flagship, Griffith, Australia;

    CSIRO Agriculture Flagship, Griffith, Australia;

    CSIRO Agriculture Flagship, Griffith, Australia;

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