果树灌水器关键参数对灌水均匀度影响的研究

Study on the Influence of Key Parameters of Fruit Tree Irrigator on Irrigation Uniformity

以华宁县新村柑桔有限责任公司柑桔园3号地为试验模拟对象,搭建模拟实验平台,研究灌溉系统中出水毛管首端进水压力、管道铺设长度和出流孔间距对灌水均匀度的影响,为项目建设地水肥一体化灌溉系统设计提供技术支持。试验设为单因素试验和正交试验,研究首端进水压力、管道铺设长度和出流孔间距3种因素分别对灌水均匀性的影响作用。研究表明,影响灌水均匀性因素主次顺序是:首端进水压力>管道铺设长度>出流孔间距,小孔出流均匀性最优的组合是首端进水压力为0.15 MPa,出流孔间距为62.5 cm,铺设长度为38.5 m的组合。此试验研究其均匀性可达到节水灌溉工程技术标准(GB/T 50363-2018)要求,可适用于坡地果树种植,达到节水节能增产效果,应用前景广阔。

In this paper, the No.3 field of citrus Garden of Huaning County Xincun Citrus Co. LTD was taken as the experimental simulation object, and a simulation experimental platform was set up to study the influence of inlet pressure, pipe laying length and outlet hole spacing on irrigation uniformity in the irrigation system, providing technical support for the design of the integrated irrigation system of land, water and fertilizer in the project construction. The single factor test and orthogonal test were used to study the influence of inlet pressure, pipe laying length and outlet hole spacing on the uniformity of irrigation. The results showed that the primary and secondary factors affecting the uniformity of irrigation were inlet water pressure > Pipeline laying length > outlet hole spacing. The optimal combination of orifice discharge uniformity was the combination of inlet pressure of 0.15 MPa, outlet hole spacing of 62.5 cm, laying length of 38.5 m. The uniformity can meet the requirements of the technical standard of water-saving irrigation engineering(GB/T 50363-2018). The study results can be applied to the planting of fruit trees on sloping land to achieve the effect of water-saving, energy saving and increased production, and has a broad application prospect.