Table 1.
Effects of different winter catch planting system on soil physicochemical and biological characteristics of winter–spring (WS) season-2017.
| Physicochemical and Biological Factors | Treatments | ||||
|---|---|---|---|---|---|
| FC | SC | CC | NCCC. | LLC | |
| Soil pH | 7.74 ± 0.12 a | 7.76 ± 0.05 a | 7.76 ± 0.03 a | 7.71 ± 0.05 a | 7.73 ± 0.03 a |
| Electrical conductivity (EC) (µs·cm−1) | 627.7 ± 5.00 bc | 649.9 ± 5.90 a | 621.6 ± 3.51 c | 632.40 ± 4.79 bc | 641.40 ± 1.79 ab |
| Organic matter (OM) (g·kg−1) | 18.63 ± 1.28 c | 22.94 ± 1.09 a | 22.71 ± 1.23 a | 21.55 ± 1.29 ab | 19.45 ± 1.59 bc |
| Available N (mg·kg−1) | 122.8 ± 3.03 c | 144.4 ± 1.18 a | 137.44 ± 1.59 ab | 146.39 ± 1.77 a | 132.69 ± 3.83 b |
| Available P (mg·kg−1) | 64.39 ± 2.00 c | 78.29 ± 0.75 a | 73.25 ± 2.25 ab | 69.52 ± 0.19 bc | 68.12 ± 1.39 bc |
| Available K (mg·kg−1) | 345.4 ± 1.73 d | 354.78 ± 2.25 bc | 363.06 ± 0.89 a | 359.89 ± 1.85 ab | 351.49 ± 3.82 cd |
| Soil invertase (mg·g−1 soil d−1) | 43.50 ± 1.36 b | 45.38 ± 1.07 b | 63.86 ± 1.39 a | 59.34 ± 3.67 a | 46.64 ± 1.17 b |
| Urease (mg·g−1 soil h−1) | 3.61 ± 0.17 d | 5.54 ± 0.11 a | 4.46 ± 0.26 c | 5.46 ± 0.65 ab | 4.96 ± 0.41 bc |
| Catalase (mg·g−1 20 min−1) | 6.29 ± 0.22 c | 12.04 ± 0.85 a | 9.82 ± 0.27 b | 11.85 ± 0.67 a | 9.15 ± 0.24 b |
| Alkaline phosphatase (mg g−1 soil h−1) | 21.43 ± 0.60 d | 34.66 ± 1.09 a | 29.65 ± 1.39 b | 27.87 ± 0.38 b | 25.21 ± 1.10 c |
Treatment values (mean ± standard error; n = 3) within a row followed by different letters are significantly differences at p ≤ 0.05 levels according to the least significant difference (LSD) means comparisons test. Treatments: FC (fallow- cucumber); SC (spinach–cucumber); CC (coriander–cucumber); NCCC (non-heading Chinese cabbage–cucumber); LLC (leafy lettuce–cucumber).