不同调理剂对泔脚蚯蚓堆肥过程中腐熟度的影响

Effects of different conditioners on maturity of vermicomposting of hogwash waste

为探究可行的蚯蚓堆肥技术处理泔脚,以玉米秸秆、青草绿化垃圾、茶叶渣、原生质土壤作为调理剂,研究了不同调理剂对泔脚蚯蚓堆肥腐熟的影响,并尝试找出合适的腐熟度评价指标。结果表明,加入蚯蚓可缩短泔脚中有机质降解时间,提高物料总氮(TN)含量和堆肥效率;以玉米秸秆或绿化垃圾为调理剂可显著提高蚯蚓及微生物的活性,降低物料的C/N和腐熟后的毒性;但以玉米秸秆为调理剂时,堆肥过程中氮素相对易流失;以原生质土壤为调理剂时,有机质的降解速度最高,泔脚腐熟所需时间最短。

In order to explore the effects of different conditions on maturity of vermicomposting of hogwash waste , the present research using corn straw , greening garbage , tealeaf residue and soil was carried out .It was shown that addition of earthworm could improve the total N （ TN） content and the composting efficiency , and thus reduce the degradation time .Composting with corn straw or greening garbage could increase microbial activity , and reduce C/N and toxicity after decomposition .But, composting with corn straw could easily cause TN leaching .Among all conditioners , soil could save the most of the degradation time for the organic matter , and therefore was the most effective choice.