Substrate 0 days 20 days 40 days Control 37.89 ± 1.10* 18.59 ± 1.20* 18.46 ± 1.20* S1 49.45 ± 1.10* 21.43 ± 1.02* 19.50 ± 1.10 S2 57.41 ± 1.20* 34.06 ± 1.12* 29.22 ± 1.20* S3 65.47 ± 1.21* 36.08 ± 1.02* 37.85 ± 1.15* S4 55.25 ± 1.02* 32.04 ± 1.12* 33.00 ± 1.10* S5 42.42 ± 1.12* 37.82 ± 1.10* 39.11 ± 1.10*

All values are mean (n=3) ± S.D. and given in percentage. *Significant (P<0.001).

Table 4: Changes in C/N ratio during composting and vermicomposting.