Table 4.
Content of SOC (g kg−1 soil) associated with different soil fractions. SE = standard Error, n = 3 (LM large macro-aggregates; SM small macro-aggregates; M micro-aggregates; S + C silt and clay).
| Treatment ID | LM |
SM |
M |
S + C |
TOC |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | |
| 1 (B0T0U0)(Control) | 27.4 | (±0.24)a | 25.5 | (±0.46)ab | 26.4 | (±1.18)c | 31.6 | (±0.48)c | 29.5 | (±0.18)a |
| 2 (B0T2.5U0) | 25.7 | (±0.67)b | 25.3 | (±0.43b | 28.5 | (±0.86)a | 32.4 | (±0.84)ab | 28.2 | (±0.88)b |
| 3 (B0T5U0) | 25.7 | (±0.81)b | 25.6 | (±0.75)ab | 27.2 | (±1.06)b | 33.6 | (±1.49)a | 27.8 | (±0.65)b |
| 4 (B0T0U120) | 25.9 | (±0.60)b | 23.6 | (±1.22)c | 27.9 | (±0.58)ab | 33.3 | (±0.69)a | 27.7 | (±0.06)b |
| 5 (B0T2.5U120) | 24.9 | (±0.77)c | 26.0 | (±0.48)a | 26.4 | (±0.85)c | 31.9 | (±1.24)c | 27.3 | (±0.56)b |
| 6 (B0T5U120) | 25.3 | (±1.34)a | 24.8 | (±1.56)bc | 27.7 | (±1.79)ab | 32.1 | (±1.92)c | 27.5 | (±0.66)b |
| 7 (B2.5T0U0) | 24.3 | (±0.68)cd | 24.6 | (±1.44)bc | 27.0 | (±1.98)c | 32.5 | (±1.91)ab | 27.1 | (±0.90)bc |
| 8 (B2.5T2.5U0) | 24.2 | (±1.17)cd | 23.9 | (±1.11)c | 26.8 | (±1.32)c | 31.7 | (±3.84)d | 25.9 | (±0.13)c |
| 9 (B2.5T5U0) | 24.8 | (±1.17)c | 23.8 | (±1.08)c | 26.5 | (±0.38)c | 31.3 | (±1.03)d | 26.6 | (±0.65)c |
| 10 (B2.5T0U120) | 24.2 | (±0.78)cd | 24.1 | (±1.44)c | 25.0 | (±0.75)d | 30.8 | (±1.24)cd | 26.0 | (±0.61)c |
| 11 (B2.5T2.5U120) | 22.5 | (±1.41)e | 23.8 | (±0.84)c | 25.3 | (±1.13)d | 32.5 | (±0.52)b | 25.8 | (±0.01)c |
| 12 (B2.5T5U120) | 23.9 | (±1.27)e | 24.1 | (±0.72)c | 25.4 | (±0.90)d | 32.6 | (±0.58)b | 26.3 | (±0.81)c |
In each column, means with the same letter are not significantly different at p < 0.05.