渗灌是在低水头作用下，通过一系列不同口径的塑料管道将灌溉水和溶于水中的化肥从水源在接输送到田间，经多孔灌木毛管，将作物所需的水分小流量、均匀地、准确地直接输送到作物根部附近的土壤中，再借助土壤的毛细管作用扩散到毛管周围，供作物吸取利用。因此，渗灌又叫地下 Infiltration irrigation is the role of low head, through a series of different diameter plastic pipe irrigation water and fertilizer dissolved in water from the water in the delivery to the field, through the porous shrub capillary, the crop of water required for small flow, evenly , Accurately and directly transported to the soil near the roots of crops, and then use the soil capillary action to spread around the capillary for crop use. Therefore, infiltration is also called underground