Substrate Initial No. of earthworms Total earthworm Cocoons no. Mean Biomass worm−1 (mg)   Net biomass worm−1 (mg)
Initial Final
Control 20 31 ± 4* 11 ± 4* 235 ± 2.5* 375 ± 12* 140 ± 11.2*
S1 20 28 ± 5 23 ± 2* 238 ± 1.7 368 ± 12 130 ± 5.6
S2 20 42 ± 4* 18 ± 4 240 ± 3.6 390 ± 14 150 ± 15.6
S3 20 47 ± 6* 07 ± 1 230 ± 1.7 325 ± 11* 95 ± 2.4*
S4 20 31 ± 2 04 ± 3 230 ± 1.6 284 ± 4.3* 54 ± 4.9*
S5 20 29 ± 5 03 ± 2 225 ± 1.7* 278 ± 11* 53 ± 15.2*
All values are mean (n=3) ± S.D.
*Significant (P<0.001).
Table 6: Changes in growth, cocoon production and net biomass of earthworms.