Table 3.
Diversity indexes of soil bacterial and fungal communities.
| Treatments | Bacteria | Fungi | ||||
|---|---|---|---|---|---|---|
| Sobs | Chao1 | Shannon | Sobs | Chao1 | Shannon | |
| C5 | 2,365 ± 14 b | 3217.67 ± 35.32 ab | 6.09 ± 0.11 b | 456 ± 47 a | 486.38 ± 53.84 a | 3.90 ± 0.28 a |
| C10 | 2,373 ± 70 b | 3183.33 ± 71.49 b | 6.12 ± 0.02 ab | 336 ± 29 b | 349.63 ± 32.46 b | 3.86 ± 0.19 a |
| C20 | 2,540 ± 139 a | 3354.37 ± 124.74 a | 6.19 ± 0.04 ab | 360 ± 23 b | 376.60 ± 22.38 b | 4.03 ± 0.03 a |
| R | 2,419 ± 53 ab | 3111.85 ± 43.66 b | 6.24 ± 0.01 a | 339 ± 28 b | 351.65 ± 23.26 b | 4.23 ± 0.13 a |
Data represent the mean ± standard deviations. Analysis of variance (Duncan’s multiple comparison test) was used to test the significance of differences. The different lowercase letters represent significant differences (P < 0.05). C5, C10, and C20 represent soybean continuous cropping treatments for 5 years, 10 years, and 20 years, respectively, and R represents soybean-corn rotational cropping treatment.