摘要:
从稻草到凤尾菇的物质转化,以100公斤干物质计算,有17.56～26.01%转化为子实体,有40.17～55.08%留在培养料中,有18.91～42.27%转化为热能及气体。稻草栽培凤尾菇后的培养料再作沼气发酵的底物,基本完成了底物预先发酵阶段。在沼气池发酵的前20天,菇料产气率比稻草快又多,1立方米菇料液平均日产0.25立方米沼气。菇料沼气肥,当季比稻草增产20%,三年连续使用,同稻草直接还田比,也无明显差异。
Abstract:
Take 100 kg dry matter for account, during the process of transformation from rice straw to mushroom pleurotus Sajor-caju, 17.56-26.01% of dry matter has transformed into fruitbody, 40.17 -55.08% remained in Mushroom-cultivated medium (MCM); and 18.91-42.27% converted into heat energy or gas. Thus the pre-fermentation stage of substrate in MCM has completed hasically. During the first 20 days of biogas fermentation in the digester, the treatment of MCM may generate faster and producing much more biogas than that of rice straw. 1M3 of fermentation liquid MCM may produce 0.25 M3 biogas/day. Applying of residue of biogas fermentation substrate made the same year rice yield increased 20% in comparison with that of rice straw applied back into soil directly. The continuous application for three years has demonstrated that there are no significant differences between the fertilities of biogas fermentation residue and rice straw.
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