Table 2.
Grain N, P and K uptake of faba bean plants irrigated with fresh and saline water in salt-affected soil in the presence of PGPR and potassium silicate during two growing seasons.
| Treatments | N Uptake (kg ha−1) | P Uptake (kg ha−1) | K Uptake (kg ha−1) | ||||
|---|---|---|---|---|---|---|---|
| 2018/2019 | 2019/2020 | 2018/2019 | 2019/2020 | 2018/2019 | 2019/2020 | ||
| FW ‡ | Control | 108.2 ± 2.3 e | 112.4 ± 2.3 e | 16.4± 0.5 e | 16.9 ± 0.4 e | 17.7 ± 0.6 e | 19.8 ± 0.4 f |
| PGPR | 119.8 ± 2.5 c | 123.1 ± 2.5 c | 17.8 ± 0.7 c | 18.0 ± 0.6 c | 24.1 ± 0.5 c | 26.1 ± 0.6 c | |
| K silicate † | 126.6 ± 2.9 b | 129.7 ± 2.8 b | 18.4 ± 0.8 b | 18.9 ± 0.7 b | 29.2 ± 0.7 b | 30.3 ± 0.6 d | |
| PGPR + K silicate | 138.1 ± 3.2 a | 142.4 ± 2.9 a | 20.2 ± 0.9 a | 21.3 ± 0.9 a | 36.3 ± 0.8 a | 39.6 ± 0.7 a | |
| SW § | Control | 86.4 ± 2.4 h | 91.4 ± 2.1 h | 14.1 ± 0.3 h | 15.6 ± 0.5 h | 6.6 ± 0.5 h | 8.6 ± 0.5 h |
| PGPR | 95.8 ± 2.6 g | 100.3 ± 2.3 g | 14.9 ± 0.5 g | 16.2 ± 0.6 g | 9.6 ± 0.7 g | 11.8 ± 0.6 g | |
| K silicate † | 104.0 ± 2.8 f | 108.4 ± 2.7 f | 15.6 ± 0.7 f | 16.9 ± 0.7 f | 13.7 ± 0.8 f | 16.9 ± 0.8 e | |
| PGPR + K silicate | 112.4 ± 2.9 d | 119.4 ±3.2 d | 16.9 ± 0.9 d | 17.5 ± 0.8 d | 19.8 ± 0.9 d | 22.0 ± 0.9 d | |
| Water treatments | *** | ** | *** | ||||
| Soil and foliar treatments | *** | *** | *** | ||||
| Interaction | ns | ns | * | ||||
Means of the same growing season designated with different lower-case letters indicate significant differences among treatments according to Duncan’s Multiple Range test (P < 0.05). Values are means ± standard deviation (SD) from four replicates (Means ± SD). ***, **, *, and ns denote significance at P < 0.001, P < 0.01, P < 0.05, and non-significant, respectively. † Potassium silicate.; ‡ Fresh water.; § Saline water.