Suthar Surindra
Department of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India.
Bioresour Technol. 2009 Dec;100(24):6422-7. doi: 10.1016/j.biortech.2009.07.004. Epub 2009 Aug 3.
The aim of this study was to assess the potential of Allolobophora parva Eisen as a candidate for vermicomposting practices. Five organic waste mixtures: cow dung (CD), biogas plant slurry (BGS), cow dung+vegetable waste (CD+VW), BGS+VW and VW+Soil were vermicomposted using A. parva. Vermicomposting showed a decrease in pH, organic C and C:N ratio, but increase total N, available P and exchangeable K at the end. C:N ratio of end material (vermicompost) was within the agronomic acceptable limit (<20). The high level of NPK in worm-processed material indicates the candidature of this species for waste management operations. The earthworm also showed an excellent growth in different wastes. Results thus indicate that A. parva appeared a potential tool for conversion of organic wastes into value added products for sustainable land restoration practices.
本研究的目的是评估微小异唇蚓作为蚯蚓堆肥实践候选物种的潜力。使用微小异唇蚓对五种有机废物混合物进行蚯蚓堆肥，这五种混合物分别是牛粪（CD）、沼气厂污泥（BGS）、牛粪+蔬菜废弃物（CD+VW）、BGS+VW以及VW+土壤。蚯蚓堆肥结束时，pH值、有机碳和碳氮比降低，但总氮、有效磷和交换性钾增加。最终产物（蚯蚓堆肥）的碳氮比在农艺可接受限度内（<20）。经蚯蚓处理的物料中氮磷钾含量较高，表明该物种适合用于废物管理操作。蚯蚓在不同废物中也表现出良好的生长态势。因此，结果表明微小异唇蚓似乎是将有机废物转化为增值产品以用于可持续土地恢复实践的一种潜在工具。
