Table 1.
Selected physiochemical properties of the soils under different land uses (means ± standard errors, n = 4)a.
| Land uses | pH | Total P | Organic P | Total C | Org C | Total N | Olsen-P | Mehlich P | Mehlich Al | Mehlich Fe | Mehlich Ca | NH4OAc extracted Ca |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mg kg-1 | % | % | % | % | mg kg-1 | |||||||
| Roadside soils | 7.1 ± 0.1 a | 479.3 ± 46.4 a | 54.4 ± 2.6 b | 2.2 ± 0.2 a | 1.6 ± 0.2 a | 0.15 ± 0.03 a | 12.5 ± 3.9 a | 22.8 ± 6.4 a | 373.8 ± 106.5 a | 140.6 ± 37.1 a | 5223.3 ± 188.9 a | 3698.4 ± 100.7 a |
| Native grasslands | 6.6 ± 0.2 a | 381.3 ± 24.3 a | 75.4 ± 3.2 a | 2.1 ± 0.3 a | 1.7 ± 0.2 a | 0.18 ± 0.03 a | 3.8 ± 0.4 b | 15.0 ± 2.9 a | 532.0 ± 63.0 a | 97.1 ± 7.0 a | 3250.4 ± 1130.1 a | 2446.1 ± 496.5 ab |
| Tame grasslands | 6.3 ± 0.3 a | 401.2 ± 42.7 a | 75.4 ± 8.0 a | 1.9 ± 0.2 a | 1.7 ± 0.2 a | 0.18 ± 0.03 a | 6.9 ± 1.8 ab | 19.0 ± 4.2 a | 630.0 ± 138.5 a | 127.6 ± 24.4 a | 2662.5 ± 772.2 a | 1759.4 ± 290.8 b |
| Annual croplands | 7.1 ± 0.3 a | 381.1 ± 32.9 a | 52.6 ± 8.3 b | 2.0 ± 0.3 a | 1.2 ± 0.4 a | 0.14 ± 0.07 a | 5.6 ± 2.6 b | 12.1 ± 5.3 a | 372.2 ± 163.3 a | 81.0 ± 18.8 a | 6037.0 ± 2403.1 a | 3006.9 ± 732.6 ab |
aValues in each column followed by the same lowercase letters are not significantly different according to LSD (P < 0.05).