磷化氢是目前国内广泛使用的熏蒸药剂,用来熏蒸各种房式仓、土园仓、堆垛和围囤的贮粮.在这些贮藏形式中,粮堆表面至最深处多不过数米.磷化氢气体易于扩散、对流和穿透.但是对于很深的大型地下仓贮粮,究竟可否用磷化氢熏蒸?如果从磷化氢气体的静态扩散考虑,它是很难达到这么深的粮堆中的.但是在这种仓中贮粮生了虫怎么办?用什么方法杀虫,如果在表层投药,不采取其它措施, Phosphine is currently widely used fumigation agents used to fumigate a variety of room-type warehouse, garden warehouse, stacking and storage of grain storage in these forms of storage, the surface of the piles to the most depths but a few meters Phosphine gases are easy to diffuse, convective and penetrate, but can fumigation be done with phosphine for deep, large underground storage grain? It is hard to reach such a depth if it is considered for the static diffusion of phosphine gas Of the grain heap in. But in this warehouse storage of raw pests how to do? What method of insecticide, if the surface administration, do not take other measures,