低压管道输水灌溉(简称“管灌”,农民喜称“田间自来水”),是利用管道代替土渠输水到田间的一种新灌溉技术,最近几年在我国北方井灌区得到了蓬勃发展。据不完全统计,全国已有3500万亩左右农田实行了管灌。 Low-pressure pipe water conveyance (referred to as “pipe irrigation”, farmers like to call “field tap water”), is the use of pipe instead of canal drainage to the field of a new irrigation technology, in recent years in our northern well irrigation area has been booming . According to incomplete statistics, about 35 million mu of farmland have been managed and controlled in the country.