水稻节水灌溉试验研究

Research on Water-saving Irrigation of Rice

水稻是贵州省的主要粮食作物,也是用水大户。为了缓解贵州省农田灌溉工程性缺水的矛盾,达到水资源总体平衡与优化配置,通过进行连续的水稻节水灌溉试验,总结适宜贵州省水稻灌溉的模式,为贵州省水稻灌溉定额的编制提供基础数据,给农民生产提供必要的灌水依据。分析了不同灌溉处理对水稻农艺性状、灌溉水量、水分生产率的影响。结果表明:"科蓄"有效地提高了降雨利用率,减少了人工灌溉,适宜大面积推广。

Rice is the main grain which needs a large amount of water in Guizhou Province.To solve the engineering water shortage of farmland irrigation and realize the population balance and optimal allocation of water resource,the irrigation model of rice is summarized by the water-saving irrigation experiment,which would provide the basic data for compilation of rice irrigation quota and irrigation basis for agriculture production.The effects of different irrigation treatments on the agronomic characters,amount of irrigation water and water productivity of rice are analyzed.The results show that the scientific water-saving irrigation increase the precipitation utilization,reduce the artificial irrigation,which is suitable for popularizing in a large area.