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. 2023 Jan 18;13:1079260. doi: 10.3389/fpls.2022.1079260

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-