武汉市郊的北港村,202户人家,主产蔬菜和猪、鱼。全村建沼气池313口,其中107户建了双池;年户平出售肥猪7.4头,沼气池原料充足。沼气的发展,不仅为农户解决了80％的生活燃料,还使蔬菜地全部施用沼肥,大大减轻了病虫害和农药危害,使该村成为武汉郊区第一个无公害的蔬菜基地。1985年湖北省农业测试中心、武汉市商品检验局等单位检测,他们的蔬菜有机氯都在国 202 villages in Beigang Village, the outskirts of Wuhan, produce vegetables, pigs and fish. The village built digesters 313, of which 107 households built a double pool; annual household sales of 7.4 pigs, digesters sufficient raw materials. The development of biogas has not only solved 80% of living fuel for farmers, but also applied all the biogas fertilizer to vegetable fields, greatly reducing the harm of pests and pesticides and making the village the first pollution-free vegetable base in the suburbs of Wuhan. 1985 Hubei Agricultural Testing Center, Wuhan Commodity Inspection Bureau and other units tested, and their organic chlorine in vegetables are in the country