Table 3. SOC, TN, MBC and MBN of 0–20 cm soil layer in organic management (OM) and conventional management (CM) during 2012–2014.
| CM | OM | ||
|---|---|---|---|
| SOC (g kg−1) | 2012 | 8.54 ± 1.96Bb | 15.59 ± 1.89Ab |
| 2013 | 15.31 ± 1.50Ba | 21.29 ± 1.29Aa | |
| 2014 | 11.08 ± 0.55Bab | 22.73 ± 1.82Aa | |
| TN (g kg−1) | 2012 | 1.06 ± 0.19Ab | 1.12 ± 0.14Ab |
| 2013 | 1.53 ± 0.14Aa | 1.90 ± 0.16Aab | |
| 2014 | 1.26 ± 0.08Bab | 2.47 ± 0.38Aa | |
| C/N ratio | 2012 | 7.90 ± 0.66Ab | 9.83 ± 0.58Aa |
| 2013 | 10.00 ± 0.32Aa | 11.36 ± 0.87Aa | |
| 2014 | 8.85 ± 0.15Aab | 9.50 ± 0.67Aa | |
| MBC (mg kg−1) | 2013 | 134.05 ± 20.14Aa | 220.30 ± 28.71Ab |
| 2014 | 164.47 ± 28.01Ba | 376.13 ± 35.38Aa | |
| MBN (mg kg−1) | 2013 | 6.32 ± 2.40Aa | 15.47 ± 2.03Ab |
| 2014 | 10.08 ± 4.82Ba | 31.39 ± 5.18Aa |
Notes.
Data are means ± standard error. Bars with different capital letters indicate significant difference at P < 0.05 level (Student’s T-test) between two managements, and bars with different lowercase letters indicate significant difference at P < 0.05 (ANOVA, LSD test) among sampling years.