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全国滴灌面积已近5万亩,其中果树滴灌面积达2.2万亩。滴灌的果树主要有苹果、梨、柑桔、桃和核桃等。据河北、天津、辽宁、山东、河南、浙江、陕西、新疆、云南等省市区试验的结果:一级果品的比例都有显著增加。辽宁滴灌的果苹,比地面灌水的增产15～20%,比不灌水的增产30%左右;浙江滴灌的柑桔,比不灌水的增产40%。另外,滴灌比喷灌省水20～40%,比地面灌省水50～60%。据辽宁的经验,在山丘地区搞果树滴灌,工程造价比地面灌溉工
Drip irrigation area of nearly 50,000 mu, of which 22,000 mu of fruit trees drip irrigation area. Drip of fruit trees are mainly apples, pears, oranges, peaches and walnuts and so on. According to the results of the tests in Hebei, Tianjin, Liaoning, Shandong, Henan, Zhejiang, Shaanxi, Xinjiang and Yunnan provinces and cities, the proportion of primary fruits has increased significantly. Apple drip irrigation in Liaoning than the ground irrigation yield 15 ~ 20%, 30% more than the non-irrigation; Zhejiang drip irrigation oranges, 40% more irrigation than the non-irrigation. In addition, drip irrigation than sprinkler irrigation water 20 ~ 40%, than the provincial irrigation water 50 ~ 60%. According to the experience of Liaoning, fruit trees drip irrigation in the hills, the cost of the project than the surface irrigation