Table 2.
Effects of different planting system on soil physicochemical and biological characteristics of autumn–winter (AW) season-2017.
| Physicochemical and Biological Factors | Treatments | ||||
|---|---|---|---|---|---|
| FC | SC | CC | NCCC | LLC | |
| Soil pH | 7.73 ± 0.12 a | 7.71 ± 0.04 a | 7.73 ± 0.03 a | 7.70 ± 0.02 a | 7.73 ± 0.04 a |
| EC (µs·cm−1) | 631.04 ± 6.81 bc | 651.04 ± 5.46 a | 627.82 ± 5.38 c | 638.83 ± 3.7abc | 645.51 ± 2.25 ab |
| OM (g·kg−1) | 21.18 ± 1.58 ab | 23.27 ± 0.99 ab | 23.20 ± 0.54 ab | 24.72 ± 1.00 a | 20.09 ± 0.42 b |
| Available N (mg·kg−1) | 117.28 ± 4.74 b | 136.2 ± 5.43 a | 138.9 ± 1.48 a | 142.16 ± 1.67 a | 123.89 ± 0.37 b |
| Available P (mg·kg−1) | 57.72 ± 1.32 b | 65.81 ± 2.60 ab | 69.94 ± 2.00 a | 72.39 ± 0.91 a | 61.53 ± 5.03 b |
| Available K (mg·kg−1) | 350.08 ± 1.76 cd | 358.06 ± 0.91bc | 365.84 ± 1.79 ab | 368.58 ± 2.01 a | 347.69 ± 5.40 d |
| Soil invertase (mg·g−1 soil d−1) | 40.00 ± 0.56 b | 41.86 ± 2.54 b | 57.13 ± 2.51a | 54.86 ± 2.08 a | 38.99 ± 1.44 b |
| Urease (mg·g−1 soil h−1) | 3.74 ± 0.25 c | 5.88 ± 0.42 b | 6.13 ± 0.43 ab | 6.90 ± 0.16 a | 4.760.19 c |
| Catalase (mg·g−1 20 min−1) | 5.72 ± 0.12 c | 7.72 ± 1.23 bc | 8.50 ± 0.84 ab | 10.90 ± 0.86 a | 7.61 ± 0.72 bc |
| Alkaline phosphatase (mg· g−1 soil h−1) | 19.57 ± 0.57 c | 21.87 ± 0.36 bc | 24.28 ± 1.93 ab | 25.68 ± 1.43 a | 22.54 ± 0.70 ab |
Treatment values (mean ± standard error; n = 3) within a row followed by different letters are significantly differences at p ≤ 0.05 levels according to LSD means comparisons test. Treatments: FC (fallow–cucumber); SC (spinach–cucumber); CC (coriander–cucumber); NCCC (non-heading Chinese cabbage–cucumber); LLC (leafy lettuce–cucumber).