The Pavail content of initial waste mixtures was in the
range of 5.6 ± 0.30–8.1 ± 0.53 g/kg, while, Pavail in vermicomposts
was in the range of 9.5 ± 0.3–11.1 ± 0.1 g/kg. Lee (1992) has reported that if organic matter passes through the gut of earthworm,
it then a fraction of P is converted to more plant available
forms. Pramanik et al. (2007) have reported that acid production
during organic matter decomposition by the microorganisms is
the major mechanism for solubilization of insoluble phosphorus,
which subsequently results in increase in phosphorus content in
vermicomposts.