Table 2.
Effects of tillage on soil bulk density and porosity.
| Tillage | Depth (cm) | Bulk density (g‧cm−3) | Soil porosity (%) | ||||
|---|---|---|---|---|---|---|---|
| Before planting | Before harvest in 2019 | Before harvest in 2020 | Before planting | Before harvest in 2019 | Before harvest in 2020 | ||
| FL | 0 ~ 10 | 1.06 ± 0.03b | 1.40 ± 0.23bc | 1.55 ± 0.11b | 59.15 ± 1.22ab | 45.73 ± 4.54ab | 43.94 ± 3.44a |
| 11 ~ 20 | 1.02 ± 0.11b | 1.37 ± 0.01c | 1.61 ± 0.05b | 59.24 ± 4.02ab | 45.25 ± 1.80ab | 40.97 ± 1.33a | |
| 21 ~ 30 | 1.11 ± 0.06ab | 1.53 ± 0.08b | 1.67 ± 0.02b | 58.17 ± 2.15b | 47.35 ± 2.85a | 32.12 ± 4.23bc | |
| CT | 0 ~ 10 | 1.06 ± 0.01b | 1.56 ± 0.32ab | 1.56 ± 0.06b | 59.34 ± 0.11a | 42.98 ± 1.21b | 37.82 ± 3.11ab |
| 11 ~ 20 | 1.09 ± 0.02ab | 1.50 ± 0.08b | 1.64 ± 0.05b | 58.83 ± 0.54b | 43.53 ± 2.87b | 39.68 ± 4.29a | |
| 21 ~ 30 | 1.17 ± 0.05a | 1.74 ± 0.04a | 1.81 ± 0.12a | 55.28 ± 2.00b | 34.22 ± 1.61c | 31.47 ± 3.16c | |
CT is conventional tillage; FL is Fenlong tillage; Different lowercase letters indicate significant differences among treatments at p < 0.05. Data are presented as the mean ± standard error (SE).