Table 1. Soil physiochemical properties at different culture mode.
| pH | SOC (g kg−1) | TN (g kg−1) | NH4+-N (mg kg−1) | NO3−-N (mg kg−1) | DOC (mg kg−1) | DON (mg kg−1) | MBC (mg kg−1) | MBN (mg kg−1) | Available N (mg kg−1) | |
|---|---|---|---|---|---|---|---|---|---|---|
| M-Sugarcane | 6.73 ± 0.06a | 16.25 ± 0.28c | 0.73 ± 0.06b | 5.66 ± 066c | 2.02 ± 0.19a | 97.67 ± 2.51b | 0.91 ± 0.01b | 131 ± 21.66b | 6.40 ± 0.57ab | 8.58 ± 0.48b |
| I-Sugarcane | 6.13 ± 0.15b | 17.15 ± 0.21a | 0.81 ± 0.01a | 8.10 ± 0.25b | 0.42 ± 0.10d | 109 ± 3.61a | 0.79 ± 0.03b | 198 ± 13.08a | 8.12 ± 0.51a | 9.65 ± 0.08b |
| M-Soybean | 5.97 ± 0.21b | 16.30 ± 0.57bc | 0.81 ± 0.02a | 6.68 ± 0.87bc | 2.00 ± 0.29b | 90.33 ± 1.52c | 0.62 ± 0.10c | 133 ± 26.46b | 5.60 ± 0.06c | 12.30 ± 0.58a |
| I-Soybean | 5.45 ± 0.06c | 16.93 ± 0.08ab | 0.77 ± 0.03ab | 10.35 ± 1.18a | 1.17 ± 0.18c | 106 ± 3.61ba | 1.10 ± 0.14a | 234 ± 27.62a | 6.69 ± 0.40a | 12.62 ± 0.51a |
Notes:
The soil physiochemical properties and microbial biomass carbon (MBC) and nitrogen (MBN) in each soil are shown in the table. Values are the means ± SE (n = 3).
M-Sugarcane, sugarcane monoculture; I-Sugarcane, intercropped sugarcane. M-Soybean, soybean monoculture; I-Soybean, intercropped soybean.