Table 1.
Soil inorganic N, soil TN, bulk density and soil pH value under the four experimental treatments.
| Treatment | NO3 −-N (mg kg−1) | NH4 +-N (mg kg−1) | TN (g kg−1) | Bulk density (g cm−3) | Soil pH value |
|---|---|---|---|---|---|
| C0 | 26.52 ± 3.03a | 9.81 ± 0.62a | 1.08 ± 0.01c | 1.33 ± 0.01a | 8.62 ± 0.02a |
| C1 | 19.14 ± 0.23b | 8.44 ± 0.40b | 1.15 ± 0.01b | 1.28 ± 0.02b | 8.58 ± 0.04a |
| C2 | 15.30 ± 0.97bc | 8.72 ± 0.18ab | 1.20 ± 0.02b | 1.28 ± 0.02b | 8.56 ± 0.03a |
| C3 | 12.99 ± 0.39c | 9.25 ± 0.32ab | 1.32 ± 0.02a | 1.27 ± 0.01b | 8.56 ± 0.03a |
Data are mean ± SE. Lowercase letter in the same column represents significant differences among experimental treatments at the level of 0.05.