甘肃省从1980年以来,先后引进了三个国家四个公司生产的五种形式的十二台大、中型喷灌机。去年又购进了辽宁鞍山农机厂生产的一台时针式喷灌机。分别安装在七个喷灌试点,主要喷灌粮食、瓜类、油料和牧草(见表1)。这些试点的成果,对全省喷 Since 1980, Gansu Province has introduced five forms of twelve large and medium-sized irrigation machines produced by four companies from three countries. Last year, it purchased an hour-hand irrigation machine produced by Liaoning Anshan Agricultural Machinery Factory. Were installed in seven sprinkler irrigation pilot, the main irrigation food, melons, fuel and grass (see Table 1). The results of these pilots, the province’s spray