储藏玉米实仓低氧防治储粮害虫研究  

A CORN STORAGE FIELD TRIAL ON CONTROLLING STORED GRAIN PESTS IN LOW OXYGEN CONDITION

作　　者：莫代亮 顾文毅[2] 李克强[3] 邹伟 刘洪雁[4] 曹阳[5] 

机构地区：[1]中央储备粮北海直属库 [2]中国储备粮管理总公司广西分公司,南宁530022 [3]中国储备粮管理总公司,北京100044 [4]北京粮食集团西北郊粮库,北京100096 [5]国家粮食局科学研究院,北京100037

出　　处：《粮食储藏》2009年第3期27-30,共4页Grain Storage

基　　金："十一五"国家科技支撑计划项目(项目编号:2006BAD08B03);中国储备粮管理总公司(项目编号:ZCL20070001-CC)

摘　　要：使用膜降氧机组在储藏4900 t玉米的高大平房仓开展低氧防治储粮害虫实仓试验,该仓气密性为-300 Pa半衰期为275.3 s±1.2 s,将粮仓氧气浓度降至2%,经过新收获玉米粮堆的自然降氧,使粮堆中氧气浓度一直维持在1%以下超过15 d,期间二氧化碳浓度升高至3%-5.4%,散气后检查人为放置于粮堆内部的布袋试虫笼中的试虫死亡率,赤拟谷盗、锯谷盗、谷蠹、米象和玉米象的成虫100%死亡,杂拟谷盗成虫的死亡率为93.8%,通过粮堆取样检查,原发生在粮堆内的害虫基本全部死亡。培养30 d后检查各个布袋试虫笼,各虫笼均无活虫存在。因此,实仓试验取得良好的防治效果,低氧防治储粮害虫具有良好实用前景。A field experiment on controlling stored grain pests in low oxygen was made in a horizontal warehouse with 4900 t capacity of corn. The half life decay of warehouse gastightness performance was 275.3 s±1.2s from -300 Pa. Oxygen concentration decreased to 2 % by membrane nitrogen generator and further natu- ral deoxygenation of freshly harvested corn bulks. Then the oxygen concentration in grain bulks kept less 1% for more than 15 days and carbon dioxide concentration increased to 3%-5.4%. After dispersion, the mortality of tested adults of Tribolium castaneum Herbst, Oryzaephilus surinamensis Linne, Rhyzopertha dominica Fbricius, Sitophilus zeamais Motschulsky and Sitotroga cerealella Olivier all were 100%, and that of Tribolium confusum Jaequelin du Val was 93.8%. By sampling, no pests occured in grain bulks were found. There were no live pests in each pest cage after culture for 30 days. The trial achieved perfect control effect and there was a good future to control stored grain pests in low oxygen condition.

关 键 词：低氧 储粮害虫 玉米 储藏 

分 类 号：S379.5[农业科学—农产品加工] Q494[农业科学—农艺学]