ICAR Central Island Agricultural Research Institute andaman and Nicobar Islands

India

ICAR Central Island Agricultural Research Institute andaman and Nicobar Islands

India
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Swarnam T.P.,ICAR Central Island Agricultural Research Institute | Velmurugan A.,ICAR Central Island Agricultural Research Institute | Pandey S.K.,ICAR Central Island Agricultural Research Institute andaman and Nicobar Islands | Dam Roy S.,ICAR Central Island Agricultural Research Institute
Bioresource Technology | Year: 2016

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. © 2016 Elsevier Ltd.


PubMed | ICAR Central Island Agricultural Research Institute andaman and Nicobar Islands and ICAR Central Island Agricultural Research Institute
Type: | Journal: Bioresource technology | Year: 2016

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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