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近年国际上的农药使用技术正向低容量的方向发展。我国在发展机动弥雾机等低量、超低量喷雾机械方面,做了不少工作,但手动喷雾器仍是我国的主要植保机械。北京农业大学正在推广的一项老械新用的施药技术,即改换小孔径旋水片(0.6—0.8毫米)作飘移累积性低量喷雾,已显示出其独特的优点。与常量喷雾相比,可提高工效,并不降低防效;与机动喷雾相比,它不受作物种植面积大小限制,适合于生产责任制的推行。
In recent years, the use of pesticides in the world is moving toward low capacity. China has made a lot of efforts in developing low-volume and ultra-low-volume spray machinery such as motor-driven mist mills. However, manual sprayers are still the major plant protection machinery in China. One of the new drug application technologies being promoted by Beijing Agricultural University, namely, the replacement of a small-diameter swirling tablet (0.6-0.8 mm) for floating cumulative low-volume spraying, has shown its unique advantages. Compared with the constant spray, it can improve the work efficiency and does not reduce the anti-efficiency. Compared with the mobile spray, it is not limited by the size of the crop planting area and is suitable for the implementation of the production responsibility system.