缺氧保管又称气调保管,是目前农村安全贮存粮食的一种新方法。基机理是将粮食严格密封起来,利用粮食自身的呼吸作用,或者采用其它一些辅助方法,使粮堆内氧气含量下降,二氧化碳浓度上升。当粮堆内氧气含量下降到2％左右,或二氧化碳浓度上升到40—50％时,就能致死粮堆内的害虫,抑制微生物的生长繁殖,防止粮食生虫或发热霉变,达到安全 Hypoxia, also known as tone custody, is a new method for the safe storage of food in rural areas. Basis mechanism is to seal the grain strictly, make use of the respiration of the grain itself, or use other auxiliary methods to reduce the oxygen content in the grain piles and increase the carbon dioxide concentration. When the oxygen content in the grain piles drops to about 2%, or when the carbon dioxide concentration rises to 40-50%, it can kill the pests in the grain piles, restrain the growth and reproduction of the microorganisms, prevent the food insects or mold from becoming hot, and achieve safety