滴灌应用于果树、蔬菜等经济作物上,优点之一是化肥可随水施入作物根际区,节省人力,施肥均匀,能使作物尽快地吸收利用。近年来推广塑料地膜覆盖技术,毛管放在地膜以下,人工撒施追肥成为难题。尽管大的滴灌系统首部安装有化肥灌,能定时、定量追施化肥,但不便于农村承包户使用。 Drip irrigation applied to fruit trees, vegetables and other cash crops, one of the advantages of fertilizers can be applied with water rhizosphere of crops, save manpower, fertilizer evenly, make the crop absorb and use as soon as possible. In recent years to promote plastic film mulching techniques, the capillary on the film below artificial dressing top dressing challenges. Although the first large-scale drip irrigation system installed fertilizer, fertilizer can be timed and quantitative, but not convenient for rural contractors.