Table 6.
Effect of effective microorganisms and nitrogen levels on the nutrient contents in the leaves of hot pepper (Capsicum annum L.) plants grown in saline soil in spring and autumn seasons.
| Treatments | N | P | K+ | Ca2+ | Na+ | |
|---|---|---|---|---|---|---|
| (mg g-1 DW) | ||||||
| Seasons | NS | * | * | * | * | |
| SS | 20.7±1.16a | 4.0±0.38a | 14.69±0.34a | 16.10±0.27a | 12.73±0.38a | |
| AS | 20.6±0.63a | 3.8±0.38b | 13.60±0.47b | 15.07±0.35b | 12.07±0.42b | |
| EMs | ** | ** | ** | ** | ** | |
| EMs- | 17.7±0.54a | 3.8±0.31b | 13.02±0.34b | 14.82±0.32b | 13.44±0.34a | |
| EMs+ | 23.3±0.60b | 4.0±0.35a | 15.28±0.32a | 16.36±0.23a | 11.36±0.30b | |
| N levels | ** | ** | * | ** | ** | |
| N120 | 18.9±1.06c | 3.6±0.20c | 13.55±0.54b | 14.51±0.39c | 13.55±0.43a | |
| N150 | 20.9±1.01b | 4.0±0.28b | 14.46±0.54a | 15.84±0.33b | 12.28±0.35b | |
| N180 | 22.3±1.17a | 4.1±0.26a | 14.44±0.48a | 16.41±0.30a | 11.37±0.50c | |
| EMs × N | ** | ** | ** | ** | ** | |
| EMs- | N120 | 15.9±0.57e | 3.6±0.09c | 12.43±0.73d | 13.56±0.53d | 14.76±0.26a |
| N150 | 18.2±0.79d | 3.8±0.10c | 13.09±0.66cd | 15.06±0.42c | 12.93±0.46b | |
| N180 | 18.9±1.02d | 4.1±0.12ab | 13.53±0.25c | 15.83±0.25b | 12.64±0.60b | |
| EMs+ | N120 | 21.9±1.01c | 3.6±0.11c | 14.67±0.48b | 15.47±0.18bc | 12.35±0.38bc |
| N150 | 23.7±0.95b | 4.3±0.10a | 15.82±0.29a | 16.62±0.25a | 11.63±0.41c | |
| N180 | 25.7±0.58a | 4.0±0.12b | 15.36±0.78ab | 16.99±0.46a | 10.09±0.29d | |
Data represent the single effects of growing seasons, EMs, N levels, or the interaction effect of EMs × N levels. Average values in each column followed by the same letters indicate no significant difference at P ≤ 0.05 using Fisher’s least-significant difference test. * and ** represent significant differences at P ≤ 0.05 and P ≤ 0.01, respectively. NS, no significant difference at P = 0.05. N, nitrogen; P, phossphorus; K, potassium; Ca, calcium; Na, sodium; DW, dry weight; SS, spring season; AS, autumn season; EMs-/EMs+, without/with effective microoragisms application; N120/150/180,120/150/180 kg nitrogen ha-