Bharadwaj Alok
Department of Biotechnology, GC L. A. Institute of Professional Studies, Mathura, U.P.--281 004, India.
J Environ Sci Eng. 2011 Jul;53(3):371-4.
In the present study, an effort has been made to utilize different types of organic wastes, i.e. kitchen waste, agro residue, institutional waste and cow dung through the process of vermicomposting. These organic wastes were collected separately, air dried, grinded and mixed in 4:1 ratio with cow dung (w/w). During the period of vermicomposting (75 days), different physico-chemical parameters were analyzed separately. During this process, pH, organic carbon, organic matter and C:N ratio of different organic waste mixtures showed a declining trend, however, total nitrogen, available phosphorus and exchangeable potassium contents showed increasing trend with the advancement of vermicomposting period. Besides, physico-chemical investigations of these wastes, estimation of earthworm population, biomass and number of cocoon produced during vermicomposting were also analyzed separately. It was found that earthworm population, biomass and cocoon production increased significantly as the duration of vermicomposting process increased upto 75 days.
在本研究中，已尝试通过蚯蚓堆肥过程利用不同类型的有机废物，即厨余垃圾、农业残留物、机构废物和牛粪。这些有机废物被分别收集、风干、研磨，并与牛粪按4:1的比例（重量/重量）混合。在蚯蚓堆肥期间（75天），分别分析了不同的物理化学参数。在此过程中，不同有机废物混合物的pH值、有机碳、有机物和碳氮比呈下降趋势，然而，随着蚯蚓堆肥期的推进，总氮、有效磷和交换性钾含量呈上升趋势。此外，除了对这些废物进行物理化学研究外，还分别分析了蚯蚓堆肥过程中蚯蚓种群数量、生物量和茧的数量。结果发现，随着蚯蚓堆肥过程持续到75天，蚯蚓种群数量、生物量和茧产量显著增加。
