我国农村沼气发展的实践表明,在农村大力推广沼气技术,是解决能源和肥料问题,推进生态农业的有效途径。 一、沼气技术的简单介绍 我国是世界上农村户用沼气地发展最多最快的国家,已有400多万个农村户用沼气池。一般户用沼气池为水泥混凝土一次浇铸成形,设计在地下,容积为6～15立方米下等,发酵原料为秸杆或人畜粪便。一个8立方米户用沼气池,投资约千元左右,施工及管理技术简单,适合农村大多数家庭。一个8立方米户用沼气池,每年可产沼气450～750立方 The practice of rural biogas development in our country shows that vigorously promoting biogas technology in rural areas is an effective way to solve the problems of energy and fertilizer and promote ecological agriculture. First, a brief introduction to biogas technology China is the country with the largest number of developing biogas in rural areas in the world, and has more than 4 million rural digesters. The average household biogas digester is a cement concrete casting, designed in the ground, the volume of 6 to 15 cubic meters under the fermentation of raw materials such as straw or manure. An 8 m3 household biogas digester, about 1,000 yuan investment, construction and management technology is simple, suitable for most rural families. An 8 m3 household digester can produce 450-750 cubic meters of biogas each year