喷灌这一先进的灌溉技术,自一九七七年列为国家重点推广新技术以来,发展迅速,近几年来每年约增加240万亩喷灌面积。固式定喷灌系统雾化程度较高,均匀度好,占地少,劳动生产率高,抗旱增产效果显著,而且可结合施肥和喷药。在较高价值 Sprinkler irrigation, an advanced irrigation technology, has been developing rapidly since it was listed as a national key promotion technology in 1977. In recent years, it has increased its irrigation area by about 2.4 million mu. Solid fixed sprinkler system with a higher degree of atomization, good uniformity, small footprint, high labor productivity, drought drought yield significant effect, and can be combined with fertilization and spraying. At higher value