摘要
在甘肃定西地区进行马铃薯不同补灌技术大田试验,研究不同补灌方式对土壤水分、农田耗水特征及降雨利用率和马铃薯的水分利用效率的影响。试验结果表明:在同一土壤水分水平下,沟灌方式的产量高于滴灌,畦灌方式马铃薯产量下降显著。水分利用效率滴灌比沟灌高87.69%,但不利于降雨利用。在水资源许可的条件下,宜采用沟灌的补灌方式来确保马铃薯产量,在水资源紧缺或在马铃薯设施育种产业中,膜下滴灌具有重要的推广应用价值。
Field experiments of different supplementary irrigation techniques of potato were carried out in Dingxi area of Gansu province to study the effects of different supplementary irrigation methods on soil moisture,water consumption characteristics of farmland,rainfall utilization rate and water utilization efficiency of potato.The results showed that the yield of furrow irrigation was higher than that of drip irrigation under the same soil moisture level,and the yield of furrow irrigation potato decreased significantly.The water use efficiency of drip irrigation was 87.69%higher than that of ditch irrigation,but it was not conducive to rainfall utilization.Under the condition of water resources permitting,the supplementary irrigation method of furrow irrigation should be adopted to ensure potato yield.In the case of water resource shortage or in potato facility breeding industry,submembrane drip irrigation has important popularization and application value.
作者
张永胜
ZHANG Yong-sheng(Dingxi Water Conservancy Research Institute,Dingxi 743000,Gansu,China)
出处
《节水灌溉》
北大核心
2019年第10期35-37,42,共4页
Water Saving Irrigation
基金
甘肃省教育厅高校科研项目资助(2018A-032)
定西市科技推广项目资助(DX2018N06)
关键词
不同补灌方式
马铃薯
农田蒸散
降雨利用率
different supplementary irrigation methods
potato
farmland evaporation
rainfall utilization rate
