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用磷化铝片对储藏在房式仓(仓容516m3)中的400t散装小麦进行熏蒸。储 不小麦水分为11.5%,储藏平均温度为29.3℃,小麦用PVC(厚度0.125mm)复盖。熏 蒸期间用磷化氢检测管测定PH3浓度。采用1.03kg磷化铝片(可释放0.34kg磷化氢) 分成小包进行熏蒸,磷化氢最高值为 1. 0mg/L。熏蒸 16天的 CT值为 213mg· h/L。用 敏感和抗性品系的米象和谷蠹进行生物试验表明.熏蒸1个月后所有的成虫都死亡;熏 蒸42天所有中度抗性的谷蠹没有发现F1代成虫出现.米象的印和蛹不能发育为成虫。
Fumigation of 400 tons of bulk wheat stored in room-type warehouses (storage capacity of 516 m3) was carried out using aluminum phosphide sheets. Storage of wheat water was 11.5%, storage average temperature of 29.3 ℃, wheat with PVC (thickness 0.125mm) cover. Phosphate test tube with PH3 concentration during fumigation. Using 1.03kg aluminum phosphide sheet (release of 0.34kg of phosphine) into small packets for fumigation, phosphine maximum value of 1. 0mg / L. Fumigation 16-day CT value of 213mg · h / L. Biological tests using rice lines and rice beetles of the sensitive and resistant lines show. All adults died after being fumigated for one month; all moderately resistant moths were not found to be present in F1 generation after 42 days of fumigation. The rice and pupa pupas can not develop into adults.