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中央储备粮郑州直属库在高大平房仓进行磷化铝粮面投药单边环流熏蒸,试验结果表明,在熏蒸初期粮堆内的检测的气体浓度上层较高,中下层相对滞后,粮堆上层的气体浓度在熏蒸后3d达到最高,中下层则在熏蒸后7～8d达到最高,到熏蒸半个月后仓房内各个部位气体浓度分布均匀,并缓慢减少,在散气之前,即熏蒸一个月后,检测到的气体浓度仍可保持在130ppm左右。本次试验虫笼中的害虫死亡率为100%,说明磷化铝粮面投药单边环流熏蒸是高效的。
The central reserve grain Zhengzhou directly under the warehouse in the high warehouse to carry out aluminum phosphate food noodles unilateral circular fumigation, the test results show that in the fumigation early detection of gas inside the higher upper concentration of the gas, the lower middle relatively lagging, The gas concentration reached the highest level after 3 days of fumigation, while the middle and lower levels reached the highest level at 7 ~ 8 days after fumigation. After half a month of fumigation, the gas concentrations in various parts of the warehouse were evenly distributed and slowly decreased. Before fumigation, , The detected gas concentration can still be maintained at about 130ppm. The pest mortality rate in the test cage was 100%, indicating that aluminum phosphide aluminum surface treatment of unilateral circular fumigation is efficient.