Soil Description (n = 3)  Heterotrophs (CFU/mL
 MC-A  215 ± 36a
 MC-B  184 ± 40b
 MC-C  4016 ± 435c
 MC-D  1040 ± 320d
 MC-E  6185 ± 506e
 MC-F  5402 ± 294f
Table 3: Heterotrophic plate counts in 10-2 dilution at the beginning of the experiments. (Note: different letters mean the values are significantly different at p = 0.05).