北京市怀柔县农机厂和五九一七○部队、一机部机械院农机所、华北农大等科研单位协作,试制成功的东方红18型超低容量喷雾机(已在本刊1974年第8期上介绍),经一九七五,一九七六两年多点大面积试用,证明防治农作物病虫害效果好,工效高,节省人力,防治及时。既适用大田各种农作物,也适用于蔬菜和果园,很受群众欢迎。各地认为这是当前实现植保机械化比较适用的一种机械,要求大量生产供应。这种超低容量喷雾机是在原来生产的背负式机动喷雾机上,换装一个超低容量喷头,使药液通过一个 Huairou County, Beijing Agricultural Machinery Factory and 51,770 units, a Machinery Department of Agricultural Machinery Institute, North China Agricultural University and other scientific research units, the successful trial of the East Hong 18 ultra-low capacity sprayer (in our magazine in 1974 No. 8 Introduced in the period). After a large number of pilot projects in 1971 and 1976, it proved that the prevention and control of crop pests and diseases is effective, labor-saving, man-saving and timely control. Not only applicable to a variety of crops in the field, but also for vegetables and orchards, very popular with the masses. It is believed that this is a kind of machinery that is more applicable to plant protection mechanization at present and requires mass production and supply. This ultra-low capacity spray machine is the original production of knapsack motor sprayer, the replacement of an ultra-low-volume nozzle, so that liquid through a