山西户用型沼渣的全量N、P、K含量分析

以山西省生态农业科技示范园区中的农户沼气池中的沼渣为研究对象,研究不同起始发酵温度、不同发酵原料经厌氧发酵后产生沼渣的全量N、P、K含量。试验结果表明:在不同发酵温度条件下,相同原料产生沼渣的全量N、P、K含量在中温条件下含量最高。在中温条件下,以鸡猪牛粪便混合原料产生的沼渣N、P、K较高,全N含量比猪粪便原料和牛粪便原料分别提高了7.89%和24.14%,全P含量分别提高了1.54%和4.34%,全钾含量分别提高了31.72%和20.81%。

Research on the N、P、K of Biogas Residue of Household Using in Shanxi

The whole quatity of N、P、K of biogas residues were researched in the field,which were fermented in different temperature conditions and different resources.The biogas residues were produced in household of ecological agricultural science and technological demonstration garden area of Shanxi province.The experimental results showed that the same resource produced the greatest whole quatity of N、P、K at the middle temperature than other different temperatures.At the middle temperature,the whole quatity of N、P、K of biogas residues produced by fixed dejecta of pig,cow and chicken were more than the produced by cow or by pig.The whole quatity of N produced by fixed dejecta was higher 7.89% and 24.14% than the two others,and the whole quatity of P was higher 1.54% and 4.34%,and the whole quatity of K was higher 31.72% and 20.81%.