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一、概况滴灌是近年来才迅速发展起来的一种灌溉方法,它较之传统的沟、畦灌溉,甚至比喷灌都具有显著的省水增产效果,因此发展较快。滴灌在生产上的应用大体从七十年代开始。在美国,1970和1971年才有了第一批商品性滴灌系统,面积约900亩,1976年发展到110万亩,墨西哥滴灌发展也比较快。我国于1974年从墨西哥引进,到1978年总面积达1.6万余亩。
I. Overview Drip irrigation is a kind of irrigation method developed rapidly in recent years. Compared with traditional ditch irrigation and irrigation, even irrigation has significant water saving and yield increase effect, so it develops rapidly. Drip irrigation in the production of applications generally from the seventies. In the United States, only the first commercial drip irrigation system was implemented in 1970 and 1971, covering an area of about 900 mu. It developed to 1.1 million mu in 1976 and drip irrigation in Mexico was relatively fast. Our country was introduced from Mexico in 1974, reaching a total area of more than 16,000 mu in 1978.