论文部分内容阅读
自从25年以前发现家蝇对DDT的抗性遗传以来,现已经查明有200个种的昆虫对化学杀虫剂产生抗性遗传,因而对农业上的植物保护和粮食药剂杀虫贮藏都带来了困难。同时,发现某些化学杀虫剂对人类健康带来严重的危害性,故某些杀虫剂如DDT和汞杀虫剂杀菌剂已被禁止使用或限制使用。文化大革命中,一九六八年上海开始采用充氮贮藏粮食,取得较好效果,南昌市第二粮库随后又创造了自制木炭炉燃烧脱氧的方法。以后浙江、天津、青岛等地又先后采用了自然缺氧、充CO_2等方法。近年来粮食缺氧贮藏象雨后春笋一样,在全国各地普遍推广,
Since the discovery of resistance to DDT by house flies 25 years ago, it has been identified that 200 species of insects inherit resistance to chemical insecticides and thus protect both agricultural plant protection and food insecticidal storage It’s difficult. In the meantime, some chemical insecticides were found to cause serious harm to human health. Therefore, certain insecticides such as DDT and mercury insecticide fungicides have been banned or restricted. During the Cultural Revolution, in 1968, Shanghai started to use nitrogen-laden grain storage to obtain better results. Nanchang No.2 Grain Depot subsequently created its own method of burning and deoxidizing charcoal stoves. After Zhejiang, Tianjin, Qingdao and other places have adopted a natural oxygen deficiency, charge CO_2 and other methods. In recent years, food hypoxia storage springing up like rain in all parts of the country to promote,