TABLE 4.
The biochemical properties of the rhizosphere soils of rice under different nitrogen treatments.
| Parameter |
Treatment |
|
| NT | NF | |
| Available N (mg kg–1) | 88.01 ± 1.59 b | 98.28 ± 1.74 a |
| Available P (mg kg–1) | 30.51 ± 3.54 a | 28.86 ± 1.96 a |
| Available K (mg kg–1) | 66.08 ± 2.91 b | 76.54 ± 3.01 a |
| Urase (μg g–1 h–1) | 7.15 ± 0.21 b | 8.4 ± 0.32 a |
| Invertase (μg g–1 h–1) | 25.01 ± 1.56 b | 34.11 ± 3.34 a |
| Nitrate reductase (μg g–1 h–1) | 2.35 ± 0.16 a | 1.44 ± 0.08 b |
Different letters in a row show significant differences determined by LSD’s test (P ≤ 0.05, n = 3), data are means ± standard errors (one-way analysis of variance).