Summary
Summary Vermicompost is a suitable alternative for peat and other organic substrates as potting media. To examine the quality of this material with respect to plant growth requirements, vermicomposts were produced from different organic wastes including yard leaf, sewage sludge + woodchips (SW), municipal wastes (MW), saw dust, wheat straw + urea (SU), sugarcane filter cake and dairy cattle manure. The chemical characteristics of the vermicomposts and the organic wastes were determined. The carbon to nitrogen ratio (C:N) and the electrical conductivity of wastes decreased during vermicomposting. For the materials with low initial C:N ratio (SW and MW), the N content decreased. Total concentrations of other nutrients in the vermicomposts were much higher than that of the original solid wast
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