自然缺氧是七十年代发展起来的一种储粮技术。几年来,各地在应用中不断有所发展和完善,但在实践中也提出了一些需要继续探索的新问题。我们于一九七七年九月开始在杭州、加善等地粮库进行实仓观察及必要的测定,查阅了有关国内外资料,于一九七八年进行了室内小型试验及生产性实验,初 Natural hypoxia is a grain storage technology developed in the seventies. Over the past few years, various places have continuously developed and improved in their applications. However, some new problems that need to be further explored have also been put forward in practice. We started the real warehouse observation and the necessary measurement of grain depots in Hangzhou and Gushan since September 1977. We reviewed relevant domestic and foreign materials and carried out laboratory mini-experiments and productive experiments in 1978 ,early