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为了评估蚯蚓用于水葫芦渣(water hyacinth residue)堆肥的可行性,设计水葫芦渣与牛粪、水葫芦渣与猪粪和水葫芦渣与鸡粪2∶1堆肥混合物(HCD、HPM和HCE)中接种蚯蚓(Eisenia foetida)进行堆肥,探讨蚯蚓堆制后堆肥产物的微生物活性及物理化学性质的变化。结果表明:与常规堆肥相比,蚯蚓堆制30d后,HCD、HPM和HCE中微生物量碳含量下降,而基础呼吸、微生物代谢熵、脱氢酶与碱性磷酸酶活性均升高;其中HCD中总固形物平均质量损失增加3.32%(P<0.05);HCD和HPM中的全氮含量均显著增加(P<0.05),而HCD和HCE中的全钾含量极显著(P<0.01)或显著增加(P<0.05)。可见水葫芦渣混入部分牛粪经蚯蚓堆制可达到减少堆肥时间、提高产品质量的效果,而水葫芦渣混入猪粪和鸡粪进行蚯蚓堆制的效果较差。
To assess the feasibility of using earthworms for compost of water hyacinth residues, a 2: 1 compost mixture (HCD, HPM, and HCE) was designed for both water hyacinth and cow dung, water hyacinth and pig manure and water hyacinth and chicken manure ) Were inoculated with earthworms (Eisenia foetida) composting, to discuss the changes of microbial activity and physicochemical properties of compost products after earthworms compost. The results showed that after 30 days of earthworm composting, the contents of microbial biomass carbon decreased, while the basic respiration, microbial metabolic entropy, dehydrogenase and alkaline phosphatase activity increased. The HCD (P <0.05). The total nitrogen content in HCD and HPM significantly increased (P <0.05), while the total potassium content in HCD and HCE was significantly (P <0.01) or Significantly increased (P <0.05). Visible water hyacinth slag mixed with part of cow dung by earthworm piling system can be achieved to reduce the compost time, improve the quality of products, and water hyacinth residue mixed with pig manure and chicken manure for earthworm piled less effective.