TABLE 2.
Soil properties as influenced by inoculation of plant growth-promoting bacteria (PGPB) and arbuscular mycorrhiza fungi (AMF), with or without the addition of nitrogen (N), phosphorus (P), and potassium (K) fertilizers.
| Treatments | pH (H2O) | pH (KCl) | Total N |
Organic C |
Organic M |
C/N | Bray P | Ca |
Mg |
K |
Na |
ECEC |
| _______________(%)_______________ | (mg kg–1) | ____________________cmol kg–1____________________ | ||||||||||
| Pre-plant | 4.30 ± 0.17a | 3.23 ± 0.06ab | 0.09 ± 0.02a | 2.16 ± 0.27a | 3.73 ± 0.47a | 20.66 ± 2.93a | 5.56 ± 1.02a | 2.40 ± 0.13d | 4.13 ± 1.62b | 0.76 ± 0.12a | 0.03 ± 0.00b | 17.70 ± 1.55a |
| Control | 4.37 ± 0.15a | 3.10 ± 0.10b | 0.10 ± 0.03a | 2.36 ± 1.05a | 4.06 ± 1.81a | 24.16 ± 11.47a | 4.23 ± 0.32a | 6.51 ± 0.85abc | 1.60 ± 0.92b | 1.42 ± 1.21a | 0.42 ± 0.27ab | 22.19 ± 6.75a |
| PGPB | 4.27 ± 0.12a | 3.40 ± 0.17ab | 0.07 ± 0.02a | 2.45 ± 0.59a | 4.23 ± 1.01a | 41.55 ± 24.04a | 4.80 ± 0.31a | 5.71 ± 0.53abc | 1.76 ± 0.57b | 2.73 ± 2.78a | 0.14 ± 0.03ab | 22.08 ± 6.41a |
| AMF | 4.37 ± 0.23a | 3.50 ± 0.10a | 0.11 ± 0.03a | 2.40 ± 0.83a | 4.13 ± 1.43a | 23.95 ± 15.35a | 5.88 ± 0.64a | 7.26 ± 0.83a | 2.18 ± 0.81b | 2.50 ± 1.39a | 0.15 ± 0.09ab | 20.48 ± 7.92a |
| PGPB+AMF | 4.43 ± 0.06a | 3.20 ± 0.10ab | 0.09 ± 0.04a | 2.36 ± 0.47a | 4.06 ± 0.80a | 30.24 ± 17.61a | 5.45 ± 0.43a | 6.81 ± 1.08ab | 1.89 ± 1.45b | 1.93 ± 0.76a | 0.34 ± 0.10ab | 22.61 ± 1.29a |
| PGPB+N | 4.23 ± 0.25a | 3.20 ± 0.10ab | 0.11 ± 0.02a | 2.32 ± 0.47a | 3.99 ± 0.61a | 21.99 ± 1.93a | 5.17 ± 0.86a | 4.78 ± 0.37abc | 2.48 ± 0.64b | 1.59 ± 1.10a | 0.23 ± 0.13ab | 21.33 ± 0.88a |
| PGPB+PK | 4.27 ± 0.21a | 3.33 ± 0.15ab | 0.11 ± 0.06a | 1.46 ± 0.36a | 2.53 ± 0.81a | 14.75 ± 5.46a | 8.56 ± 0.99a | 5.21 ± 0.88abc | 3.44 ± 3.45b | 1.02 ± 0.39a | 0.15 ± 0.15ab | 18.56 ± 1.62a |
| PGPB+NPK | 4.23 ± 0.1a | 3.30 ± 0.10ab | 0.10 ± 0.01a | 1.81 ± 0.12a | 3.13 ± 0.21a | 18.74 ± 1.07a | 9.34 ± 0.36a | 5.15 ± 0.67abc | 1.81 ± 1.01b | 0.50 ± 0.30a | 0.10 ± 0.11ab | 13.23 ± 5.18a |
| PGPB+AMF+N | 4.23 ± 0.3a | 3.33 ± 0.15ab | 0.05 ± 0.04a | 2.12 ± 0.71a | 3.66 ± 1.22a | 64.28 ± 52.65a | 8.95 ± 4.76a | 5.79 ± 1.21abc | 2.56 ± 1.76b | 0.69 ± 0.13a | 0.06 ± 0.02b | 24.29 ± 13.47a |
| PGPB+AMF+PK | 4.37 ± 0.1a | 3.43 ± 0.12ab | 0.08 ± 0.02a | 1.81 ± 0.53a | 3.13 ± 0.91a | 23.63 ± 10.69a | 7.47 ± 3.49a | 4.35 ± 1.01bc | 2.86 ± 2.48b | 0.56 ± 0.06a | 0.03 ± 0.00b | 17.72 ± 3.85a |
| PGPB+AMF+NPK | 4.27 ± 0.40a | 3.20 ± 0.10ab | 0.06 ± 0.02a | 2.36 ± 0.32a | 4.06 ± 0.56a | 40.77 ± 15.13a | 8.58 ± 2.00a | 4.11 ± 1.40c | 8.29 ± 2.80a | 0.62 ± 0.24a | 0.03 ± 0.03b | 16.88 ± 1.47a |
Data (Mean ± SD) within columns with different letters are significantly different (Tukey’s HSD, p < 0.05).