Table 1.
Effect of different types of fertilizer on soil chemical properties and microbial viable cell counts (log cfu g−1 soil) during potato cultivation.
| Source of Variation | pH | OC (%) | EC (dS/m) | ABC | AOB | NRB | Fungi |
|---|---|---|---|---|---|---|---|
| DAT | |||||||
| 0 | 6.50e | 0.21e | 0.27e | 7.45d | 4.61e | 4.64e | 3.83e |
| 20 | 6.97d | 0.27d | 0.57d | 7.56c | 4.83c | 4.81c | 3.93d |
| 40 | 7.36b | 0.28c | 0.59c | 7.89b | 4.98b | 4.92b | 4.02c |
| 60 | 7.62a | 0.29a | 0.60b | 8.02a | 5.07a | 4.98a | 4.14b |
| 90 | 7.07c | 0.28b | 0.62a | 7.40d | 4.78d | 4.71d | 4.27a |
| N fertilizer | |||||||
| CU | 7.14a | 0.25c | 0.54a | 7.70b | 5.05a | 4.95a | 4.08b |
| NCUC | 7.12c | 0.27b | 0.52c | 7.81a | 4.88b | 4.85b | 4.16a |
| CS | 7.10b | 0.27a | 0.53b | 7.64c | 4.81c | 4.76c | 4.02c |
| N level | |||||||
| 0 | 7.00d | 0.23d | 0.49d | 7.33d | 4.64d | 4.60d | 3.94d |
| 50 | 7.05c | 0.26c | 0.51c | 7.75c | 4.93c | 4.86c | 4.06c |
| 75 | 7.16b | 0.28b | 0.55b | 7.85b | 5.01b | 4.94b | 4.14b |
| 100 | 7.21a | 0.29a | 0.57a | 7.94a | 5.08a | 5.02a | 4.22a |
Means within a sub-factor followed by a different letter in a column are significantly different at p ≤ 0.05 according to pair-wise comparison of least square means.