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农村沼气事业发展很快。农民用沼气肥种田夺高产已不乏其谈,但用沼气肥养鱼的好处还没有完全被农(渔)民所认识。沼气肥是一种优质农家肥料,它含有丰富的有机质,是渔业生产难得的一种有机肥料。一、沼气肥的特点。沼气肥是沤沼气的渣汁和渣的统称。它作为渔用肥具有以下特点:第一,肥分高,沼气肥和其它农家肥比较,碳素含量相对下降,氮素含量相对上升。主要是封闭严密,发酵充分,氮素损失少。农家其它堆肥、沤青肥和人、畜粪等,封闭不严,发酵方法不当,有机质和氮素损失严重。而沼气肥配方比例恰当,封闭严密、发酵充分,且在厌氧发酵过程中,产生的有机酸较多,有利于
Rural biogas business has developed rapidly. However, the benefits of using biogas fertilizer to fish fish have not yet been fully recognized by farmers (fishermen). Biogas fertilizer is a kind of high-quality farm fertilizer, which is rich in organic matter and is a kind of organic fertilizer which is rare in fishery production. First, the characteristics of biogas fertilizer. Biogas fertilizer is the general term for the residue juice and residue of biogas. It has the following characteristics as a fishery fertilizer: First, the high fertilizer, biogas fertilizer and other farm manure compared to the relative decline in carbon content, nitrogen content increased. Mainly closed tightly, full fermentation, less nitrogen loss. Other compost of farmhouse, 沤 green manure and human, manure and so on, lax closed, improper fermentation method, serious loss of organic matter and nitrogen. The appropriate proportion of biogas fertilizer formula, closed tight, full fermentation, and in the anaerobic fermentation process, produce more organic acid, is conducive to