广东地处亚热带,全年气温高、湿度大,使粮食在贮藏过程中,容易生虫、发热、霉变,给粮食安全贮藏带来很大困难.过去采用化学药剂杀虫的方法(每年要熏蒸二至三次)但保管费用较高,如果防护不慎,容易造成粮食污染和影响工作人员健康. 我省自1973年开展“循环脱氧”贮粮之后,广大保粮职工又广泛开展“自然缺氧”贮粮,它的主要优点是方法简单易 Guangdong is located in the subtropical zone with high temperature and high humidity throughout the year, which makes the food easy to pest, fever and mildew during storage, which brings great difficulties to food safety storage. In the past, the method of pesticide using chemical agents Fumigation two or three times) but the custody of higher costs, if the careless care, likely to cause food pollution and affect the health of workers in our province since 1973 to carry out “recycling deoxidation” storage of grain, the majority of food security workers and extensive “natural shortage Oxygen ”stored grain, its main advantage is that the method is simple and easy