Table 1.
Soil chemical property as affected by legume or grass.
| Sample | pH | TOC (g kg−1) | DOC (mg kg−1) | TN (g kg−1) | TP (g kg−1) | TK (g kg−1) | AN (mg kg−1) | AP (mg kg−1) | AK (mg kg−1) | C/N | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Legume | SG | 5.44 ab | 10.3 a | 174.1 ab | 0.73 d | 0.70 b | 13.03 b | 69.3 a | 163.5 ab | 15.6 a | 14.1 a |
| TP | 5.59 bc | 9.3 a | 158.6 ab | 0.61 bc | 0.57 a | 10.92 a | 64.0 a | 171.5 b | 19.3 ab | 15.2 a | |
| MS | 5.72 c | 9.3 a | 171.0 ab | 0.59 b | 0.58 a | 11.48 ab | 71.9 a | 166.5 ab | 33.0 c | 15.9 a | |
| average | 5.58** | 9.6 NS | 167.9* | 0.65* | 0.62 NS | 11.81 NS | 68.4 NS | 167.2*** | 22.6 NS | 15.0 NS | |
| Grass | PN | 5.75 c | 9.6 a | 199.0 b | 0.65 c | 0.70 b | 12.90 ab | 71.2 a | 158.5 a | 13.3 a | 14.9 a |
| FA | 5.75 c | 8.7 a | 174.1 ab | 0.58 b | 0.56 a | 11.30 ab | 69.1 a | 156.8 a | 16.5 ab | 15.0 a | |
| LP | 5.78 c | 9.9 a | 186.6 ab | 0.51 a | 0.56 a | 11.35 ab | 66.1 a | 158.3 a | 23.1 b | 19.3 b | |
| average | 5.76** | 9.4 NS | 186.6* | 0.58* | 0.61 NS | 11.85 NS | 68.8 NS | 157.8*** | 17.6 NS | 16.4 NS | |
| Control | 5.24 a | 8.8 a | 146.1 a | 0.63 bc | 0.62 ab | 12.20 ab | 59.6 a | 166.5 ab | 68.0 d | 14.0 a | |
| F-value of ANOVA | 12.581 | 2.580 | 2.995 | 25.542 | 5.925 | 3.572 | 1.106 | 5.043 | 176.027 | 6.586 | |
| P-value | 0.000 | 0.049 | 0.028 | 0.000 | 0.001 | 0.013 | 0.392 | 0.002 | 0.000 | 0.001 | |
Data followed with lower letters in each column are separated by one-way ANOVA (Turkey HSD multiple range test, P = 0.05). PN, Paspalum natatum; FA, Festuca arundinacea; LP, Lolium perenne; SG, Stylosanthes guianensis; TP, Trifolium pratense; MS, Medicago sativa; Control, no plants. NS and
*, **, ***
indicate no significant difference and significant difference at P = 0.05, 0.01, 0.001, respectively, between the averages of legume and grass.