微灌是使田间土壤部分湿润的灌溉系统，通过滴头、喷咀、渗管等各种配水设施，将水肥以缀慢而量小的形式，直接输送到作物的根系，最大限度地消除了输水损失，实现田间用水的高效率。 微灌系统全部由管道输水，灌水流量小，不发生地表径流和深层渗漏，能够适时适量地按作物生长 Micro-irrigation is to make the soil part of the field wet irrigation system, through the dripper, nozzle, pipe and other water distribution facilities, the water and fertilizer to slow and small form, directly to the crop roots, to maximize the elimination of Loss of water to achieve high efficiency of field water. All irrigation system by the pipeline water, irrigation flow is small, does not occur surface runoff and deep leakage, timely and appropriate crop growth