Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7072245 | Bioresource Technology | 2016 | 37 Pages |
Abstract
Vermicompost was prepared by five different treatments from relatively resistant coconut husk mixed with either pig slurry or poultry manure. The recovery of vermicompost varied from 35% to 43% and it resulted in significant increase in pH, microbial biomass carbon, macro and micro nutrients concentration. Among the treatments highest relative N (1.6) and K (1.3) recovery were observed for 20% feedstock substitution by pig slurry while poultry manure substitution recorded highest P recovery (2.4). Compost maturity parameters significantly differed and well correlated. The characteristics of different treatments established the maturity indices as C/N 15-20; Cw < 1.8; Cw/Norg < 0.55; Lignin < 10-12; CHA/CFA > 1.5 and HI > 15.0. The manurial value of the coconut husk compost was improved by feedstock substitution with pig slurry (80:20). The results revealed the technical feasibility of converting coconut husk into valuable compost by feedstock substitution with pig slurry.
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Authors
T.P. Swarnam, A. Velmurugan, Sanjay Kumar Pandey, S. Dam Roy,