农村办沼气,已经和多种经营、多级利用农村生物质能相结合.当前出现的良性循环闭合模式是:种植业(种植农作物、牧草)——加工业(磨米、磨面、粉碎加工饲料)——养殖业(养畜、养禽)——制取沼气——栽培食用菌——养殖蚯蚓——养鱼——肥料还田.这样把种植业、养殖业、加工业、农村工副业结合起来,互相促进.充分利用生物质能,既能增加产品、产 Biogas operations in rural areas have been combined with diversified and multi-level use of rural biomass, and the currently closed cycle of virtuous cycles is cropping (crop, grass) - processing (grinding rice, grinding, crushing Feed) - Aquaculture (livestock raising, poultry) - Preparation of biogas - Cultivation of edible mushrooms - Culture of earthworms - Fish farming - Fertilizers to land. This will be farming, aquaculture, processing industry, rural workers Sideline industry combine to promote each other. Make full use of biomass energy, both to increase product and production