Table 3.
Different inoculation treatment impacts on the enzyme activities and nutrients in soil.
| Index | CK | CK + SH | DSE | DSE + SH |
|---|---|---|---|---|
| OM g/kg | 114.03 ± 0.21d | 115.83 ± 0.35c | 126.53 ± 0.88a | 120.97 ± 0.21b |
| TN g/kg | 7.73 ± 0.199bc | 7.39 ± 0.056c | 8.67 ± 0.028a | 8.03 ± 0.298b |
| AN mg/kg | 0.33 ± 0.007d | 0.47 ± 0.005c | 0.52 ± 0.001a | 0.49 ± 0.003b |
| TP g/kg | 1.26 ± 0.049c | 1.17 ± 0.028d | 1.67 ± 0.049a | 1.36 ± 0.026b |
| AP mg/kg | 0.78 ± 0.053d | 1.06 ± 0.013c | 1.59 ± 0.005a | 1.33 ± 0.014b |
| TK g/kg | 9.06 ± 0.088d | 9.85 ± 0.014c | 12.06 ± 0.248a | 10.32 ± 0.073b |
| AK mg/kg | 0.34 ± 0.033b | 0.32 ± 0.023c | 0.42 ± 0.015a | 0.43 ± 0.014a |
| pH value | 5.65 ± 0.011b | 5.62 ± 0.015b | 5.51 ± 0.021c | 5.71 ± 0.055a |
| Sucrase level U/g | 42.99 ± 1.69a | 39.82 ± 5.67a | 41.97 ± 3.34a | 44.46 ± 1.22a |
| Catalase level U/g | 24.81 ± 1.58b | 23.73 ± 0.82b | 27.89 ± 2.50a | 27.68 ± 2.45a |
| Acid phosphatase levelU/g | 373.70 ± 18.25b | 365.62 ± 15.59b | 445.63 ± 16.51a | 358.44 ± 9.03b |
| Urease level U/g | 231.66 ± 9.14b | 219.49 ± 2.43b | 277.62 ± 15.80a | 263.88 ± 8.06a |
| Protease U/g | 20.16 ± 4.75b | 20.56 ± 0.37b | 22.13 ± 4.37b | 28.49 ± 3.24a |
CK: cottonseed shell blank culture medium inoculation. DSE: P. bamuru A024. CK + SH inoculation alone: Single inoculation with R. solani SH01. DSE + SH: sequential inoculation with P. bamuru A024 and R. solani SH01. OM: Organic matter. TN: Total nitrogen. AN: Available nitrogen. TP: Total phosphorus. AP: Available phosphorus. TK: Total potassium. AK: Available potassium. pH: soil pH. The diverse letters within each column are indicative of significant differences (p < 0.05) upon Tukey test.