粉尘法施药技术是将药剂及其辅料加工成极细的超微粉粒,通过喷粉的方法使超微农药粉粒在保护地内形成飘尘,利用粉尘的“飘翔作用”和“布朗运动”,使药剂在保护地内蔬菜植株上产生多向均匀沉积。一、主要优点。1.防效明显。药剂分布均匀,黏着性好粉尘飘浮时间长,药粒可在植株各 Dust method is the application of pharmaceutical agents and their processing into ultrafine ultrafine particles, the method of dusting by ultrafine pesticide particles in the formation of floating dust in the protected area, the use of dust “floating effect” and “Brownian motion” , So that agents in the protection of vegetable plants produce more uniform deposition. First, the main advantage. 1 obvious effect. Pharmacy evenly distributed, good adhesion of dust floating a long time, drug particles in the plant each