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机构地区:[1]辽宁省东水西调建设局,沈阳110003 [2]辽宁省水利水电科学研究院,沈阳110003
出 处:《水利科技与经济》2014年第9期38-40,共3页Water Conservancy Science and Technology and Economy
基 金:辽宁省科技计划项目(2011212002):稻田水资源高效利用关键技术研究与应用
摘 要:在计算得出辽宁中部地区控制灌溉水稻日耗水量和降雨频率为50%、75%、90%对应典型年的基础上,结合典型年实测降雨资料,制定了不同降雨频率典型年水稻控制灌溉制度,并在辽宁中部地区对水稻控制灌溉进行了推广应用。结果表明,实施控制灌溉制度较常规灌溉可节水13.67%~15.41%,增产11.3%~12.7%,水分生产效率提高29.26%~32.97%。On the basis of daily water consumption for rice under control irrigation condition and the measured rainfall information of typical year with rainfall frequency of 50%, 75%and 90%, irriga-tion regimes of control irrigation for rice were scheduled, and furthermore, control irrigation was ap-plied in the central area of Liaoning.The results showed that compared to the traditional irrigation, the irrigation water of control irrigation decreased from 13.67%to 15.41%, while rice yield and wa-ter use efficiency under control irrigation condition increased 11.3% ~12.7% and 29.26% ~32.97%respectively.
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