滴头流量和间距的优化选择

The Optimal Selection of Dripper Discharge and Spacing of Irrigation Dripper

探讨了滴灌滴头流量、间距的选择,研究了滴头流量、间距与土壤湿润比、一次灌水时间、轮灌组数、小区设计流量及管网设计流量、田间灌水量的关系。结果表明,滴头流量首先应满足湿润比的要求,在满足湿润比的前提下,尽量选择小流量滴头;滴头间距不应大于理想滴头间距,在满足理想滴头间距的条件下,尽量选择大间距,并通过调整滴头间距取得合理的轮灌工作制度。

This paper discusses the choice of dripper discharge and spacing,studies the relationship between the dripper discharge and spacing with soil moisture ratio,a number of sets of irrigation time,irrigation group,plot design flow and the pipe network design flow. The results showed that dripper flow should meet the requirements of moisture ratio at first. On the premise of this,the small flow drippers should be selected. Dripper spacing should not be greater than the ideal dripper spacing. Under the condition of meeting the ideal dripper spacing,the larger spacing should be selected,then the reasonable rotation irrigation system can be obtained by adjusting the dripper spacing.