干旱地区农业研究Issue(2)：196-200,5.
滴头堵塞率及堵塞位置对灌水均匀度的影响
Influence of emitter clogged ratio and clogged location to the irrigation uniformity
摘要
Abstract
Using the method to control the clogged experiment ,under the condition of constant working pressure , has analyzed the influence rule of the emitter clogged rate ,clogged location to the irrigation uniformity .The test results showed that :When the working pressure was changed at the 4 to 10 m ,the influence of pressure to the irrigation unifor-mity was not obvious ,as the change range was less than 1% .So in the production practice ,the working pressure of the trickle irrigation line can be properly decreased to achieve the purpose of reducing the cost .It is found that the emitter clogged rate was the main reason for affecting the irrigation uniformity ,the higher emitter clogged rate ,the poorer irriga-tion uniformity .When the emitter clogged rate is high than 10% ,the irrigation uniformity CU will be more less than the minimal value in the code .So only the emitter clogged rate was less than 10% ,the logged position will be a certain in-fluence to the irrigation uniformity .When the emitter clogged position distributed at the first one-third section and along entire line ,the influence to the irrigation uniformity will be rather obvious ,right now the irrigation uniformity will be the minimum .关键词
滴头/堵塞/堵塞率/堵塞位置/灌水均匀度Key words
emitter/clogged/clogged ratio/clogged location/irrigation uniformity分类
农业科技引用本文复制引用
罗春艳,牛文全..滴头堵塞率及堵塞位置对灌水均匀度的影响[J].干旱地区农业研究,2014,(2):196-200,5.基金项目
国家高技术研究发展计划（863计划）“低能耗微灌技术与产品” （）
