我国使用喷灌始于五十年代,一九七六年初列入重点科研计划,一九七八年开始进行有重点的推广,到年底为止全国喷灌面积已达九百万亩,发展速度相当惊人。几年来,由于各方面的努力,无论是在灌区规划方面,还是系统设计、设备研制以及基本理论方面都取得了不少经验,技术水平有较大的提高。但是,也正是因为发展太快,许多必要 Spray irrigation started in the 1950s and early 1976 into key scientific research programs. In 1978, we started to carry out key promotion programs. By the end of the year, the area of ​​sprinkler irrigation in China has reached 9 million mu, which is quite impressive. In recent years, due to various efforts, many experiences have been gained in the planning of irrigation districts, system design, equipment development and basic theories, and the technical level has been greatly improved. However, precisely because of the rapid development, many are necessary