土地灌溉是我国农业发展的重要基础设施,喷灌又是具有广阔发展前途的先进灌溉技术。建国以来,我国灌溉面积发展到七亿多亩,占耕地总面积的47％,在农业持续稳定增产中发挥了重大作用。要完成“七五”农业发展计划,特别是粮食生产计划,巩固和发展农业灌溉是必不可少的措施。就全国多数地区而言,在水土资源匹配、地形土壤条 Land irrigation is an important infrastructure for agricultural development in our country. Sprinkler irrigation is an advanced irrigation technology with broad development prospects. Since the founding of the People’s Republic, the irrigated area in our country has grown to more than 700 million mu, accounting for 47% of the total cultivated land. It has played an important role in the sustained and steady increase in output of agriculture. To complete the “Seventh Five-Year Plan” for agricultural development, especially the grain production plan, consolidating and developing agricultural irrigation is an indispensable measure. In most parts of the country, the soil and water resources match the terrain soil strips