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在农村,一户人家建造一口沼气池,既可解决供照明之用的甲烷,又可减少农村环境污染,还为农业提供了大量肥料,一举三得。特别是利用沼气肥料养鱼,效果尤佳。据我区安仁县试验:1984年7月20日在2亩试验田中投放6厘米长的草鱼6000尾,5厘米长的鲢鳙鱼4000尾;2.2亩对照田也同时投放与试验田规格一致的鱼种,其数量是:草鱼3000尾,鲢鳙鱼2000尾。在饲养管理上,试验田每天施沼气肥渣或肥水30公斤,对照田每天施纯人粪20公斤,其它管理一律相同。1985年3月10日验收:试验田产草鱼
In rural areas, a household building a biogas digester can not only solve the methane used for lighting, but also reduce rural environmental pollution and provide a large amount of fertilizer for agriculture. In particular, the use of biogas fertilizer fish, especially effective. According to my district Anren County test: July 20, 1984 in 2 acres of experimental field put 6 cm long grass carp 6000, 5 cm long silver carp and bighead carp 4000; 2.2 acres of control field also put the fish in line with the specifications of the experimental field Species, the number is: grass carp 3000, silver carp and bighead carp 2000. In feeding and management, the test field daily biogas fertilizer or fertilizer 30 kg, the control Tian applied pure manure 20 kg, the other management are the same. March 10, 1985 Acceptance: trial grass carp