目前国内对散堆粮的熏蒸,普遍采用磷化铝装入小布袋或探管内多点埋藏的方法投药,这种方法比起原来的粮食潮解法虽然有了一定的改进,但仍存在以下几方面的主要缺点。(1)药剂有可能同粮食直接接触,造成不同程度的污染。因为每只小布袋都要人工捣入粮堆,由于粮堆阻力大,操作时布袋难免有破碎现象,造成部分药剂漏入粮堆。尤其在处理残渣时, At present, domestic fumigation of scattered heap of grain, the general use of aluminum phosphide into the bag or more buried tube method of administration, this method than the original food deliquescence method although there have been some improvements, but there are still the following The main drawbacks. (1) It is possible that pesticides may be in direct contact with foodstuffs, causing different levels of pollution. Because each small bag must be manually pounded into the piles, due to large resistance to the piles, the operation of the pockets will inevitably be broken, resulting in the leakage of some medicines into the piles. Especially in the treatment of residues,