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近年来,随着国家对农村能源建设投入不断加大,农村沼气建设得到迅速发展,沼气肥料越来越多地被运用到养殖生产中去。对于池塘养鱼,沼肥是一
In recent years, as the state invests more and more in rural energy construction, the construction of rural biogas has been rapidly developed. Biogas fertilizer is increasingly being applied to aquaculture production. For pond fish farming, marsh manure is one