Pot culture experiments were carried out to process pig waste mixed with bedding materials (Eichhornia crassipes and cow dung) in the ratio of 1:1:2, 1:2:1 and 2:1:1 using earthworm Eudrilus eugeniae. Totally there were three treatments (T1, T2 and T3) with three replicates for each. The pre[1]composed pig waste and vermicompost were separately subjected to chemical nutrients composition analysis. After two months the vermicomposts were harvested and characterized. The results showed that the vermicomposts had lower pH, total organic carbon (TOC) and carbon /nitrogen ratio (C/N ratio) but higher electrical conductivity (EC), nitrogen, phosphorous and potassium (NPK) content than the pre-composed. Heavy metal content in vermicomposts were higher than pre-composed. The results of the present study suggest that the vermicomposted pig waste with Eichhornia crassipes and cow dung at 2:1:1 proportion can very well be used as eco friendly organic manure.
