INVESTIGATION OF THE TECHNOLOGY OF PH_3 RECIRCULATION FUMIGATION AND RECIRCULATION FUMIGATION UNDER FILM IN LARGE STOREHOUSE

The operation technique and experience of PH3 recirculation fumigation and recirculation fumigation under film in large storehouse were expounded in this article.The advantages,such as safety,convenience,economy,effectivity of recirculation fumigation in particular recirculation fumigation under film technology were verified.