【摘要】 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。更多还原

【Abstract】 field test on administration aluminum phosphade on the grain surface with unilateral circulation fumigation in large warehouse in Zhengzhou grain depot,the results showed that:the gas concentration of upper layer of wheat storehouse was higher than middle and lower layer at early stage,and it reached the highest level in the 3d,and middle and lower layer needed from 7d to 8d to reached the maximum.The concentration distribute uniformly throughout the grain bulk and decreased slowly.Moreover,the concentration remained about 130ppm after one month.the mortality of test insects was 100%.This method was efficient.更多还原