摘要
采用仓外投药器在仓外投药熏蒸,不仅能提高操作人员的安全防护性能,而且省工、省时、节省费用。投药后,PH_3随粮堆微气流有规律地扩散。小麦、玉米粮堆中的 PH_3,在熏蒸120小时左右基本趋于平衡。AlP0.75～1.1g/m^3粮堆的剂量,其 PH_3(0.02mg/1)的有效浓度可以保持20天以上,对一般储粮害虫能够达到100%的致死效果。
A applicator which used at outside the warehouse was used for fumigation.The technique was not only safe for operators,but also saved labour,time and cost.After applied insecticide,PH_3 diffused regularly along with tiny air current in grain bulk.PH_3 in wheat and maize bulk acheaved equilibrium after 120 hr.fumigation.At AIP dosage 0.75～1.1g/m^3,PH_3 effective concentration 0.02 mg/1 could keep abowe 20 days.It could kill 100% common stored grain insects.
出处
《粮食储藏》
1992年第2期41-48,共8页
Grain Storage
