【摘要】 DDVP气化后，能够在环流熏蒸系统中进行粮食实仓熏蒸杀虫，以空间0．3g／m3、粮堆0.79g／m3的用药量，就可以得到较好的防治效果，并且在机械通风后，稻谷中的DDVP残留量完全符合安全标准．更多还原

【Abstract】 Vapoured DDVP was used as a fumigant for bulk grain to control stored grain insects at the condition of circulative fumigation system. The technique gives good effectiveness at dosage of 0.79g/m3 and the residue in paddy accorded with safe standard after mechanical ventilation.更多还原