天津市自1975年至1983年共发展喷灌设备4000余台套,喷灌面积28.68万亩,滴灌面积0.25万亩,总投资2145万元。其中,国家补助和群众自筹皆为986.5万元,利用贴息贷款172万元。依据喷灌区划,喷灌发展的重点是山丘区、水源贫乏、单井效益低的地区。以半固定式喷灌为主,以粮田为主,适当发展果树。确定项目时必对初选项目进行可行性评估,贷 From 1975 to 1983, a total of more than 4000 sets of sprinkler irrigation equipment were developed in Tianjin. The sprinkler area was 286,800 mu and the drip irrigation area was 25,000 mu with the total investment of 21.45 million yuan. Among them, the state subsidies and the masses raised 9.856 million yuan each, using loans with a discount of 1.72 million yuan. According to the sprinkler zoning, irrigation development focus on the hills, poor water supply, single-well low-benefit areas. Semi-fixed sprinkler-based, grain-based, appropriate development of fruit trees. When determining the project will conduct a preliminary assessment of the feasibility of projects, loans