Table 4.
Effects of soil addition of EM, compost tea, fulvic acid, yeast extract, and foliar spray with seaweed extract and their combination on fruit yield of sweet pepper plants during the 2019/2020 and 2020/2021 seasons.
| Treatments | Number of Fruit/Plant |
Total Fruit Yield (kg/m2) | |||
|---|---|---|---|---|---|
| Potassium Soil Addition (S) | Foliar Spraying (F) | 1st Season |
2nd Season | 1st Season |
2nd Season |
| Control | 14.9 C | 16.6 C | 11.31 C | 12.17 C | |
| EM | 15.2 B | 16.8 C | 11.58 BC | 12.35 BC | |
| Compost tea | 15.3 B | 17.6 AB | 12.41 A | 13.76 A | |
| Fulvic acid | 15.7 A | 17.9 A | 12.34 A | 13.71 A | |
| Yeast extract | 15.3 B | 17.3 B | 11.96 AB | 12.78 B | |
| Control | 14.8 C | 16.8 B | 10.85 D | 11.85 D | |
| Seaweed at 1 g/L | 15.2 B | 17.0 B | 11.66 C | 12.71 C | |
| Seaweed at 2 g/L | 15.4 B | 17.5 A | 12.21 B | 13.31 B | |
| Seaweed at 3 g/L | 15.8 A | 17.9 A | 12.97 A | 13.98 A | |
| Control | Control | 14.3 h | 16.2 e | 10.29 h | 11.02 h |
| Seaweed at 1 g/L | 14.8 f–h | 16.4 de | 11.19 d–h | 12.51 d–h | |
| Seaweed at 2 g/L | 15.1 d–g | 16.8 c–e | 11.86 c–g | 12.09 e–h | |
| Seaweed at 3 g/L | 15.4 b–f | 17.3 a–e | 11.90 c–g | 13.08 c–f | |
| EM | Control | 14.6 gh | 16.4 de | 10.56 gh | 11.37 gh |
| Seaweed at 1 g/L | 14.9 e–h | 16.3 de | 11.51 d–h | 11.68 fh | |
| Seaweed at 2 g/L | 15.7 a–d | 17.1 b–e | 11.97 c–g | 12.93 c–g | |
| Seaweed at 3 g/L | 15.6 a–e | 17.4 a–e | 12.31 b–f | 13.44 b–e | |
| Compost tea | Control | 14.8 f–g | 16.9 b–e | 11.14 e–h | 12.22 d–h |
| Seaweed at 1 g/L | 15.4 b–f | 17.6 a–d | 12.0 c–f | 13.36 c–e | |
| Seaweed at 2 g/L | 15.2 c–g | 18.0 a–c | 12.59 a–d | 14.38 ac | |
| Seaweed at 3 g/L | 16.1 ab | 18.2 ab | 13.92 a | 15.08 a | |
| Fulvic acid | Control | 15.2 c–g | 17.6 a–d | 11.29 d–h | 12.55 d–h |
| Seaweed at 1 g/L | 15.6 a–e | 17.9 a–c | 11.90 c–g | 13.65 a–e | |
| Seaweed at 2 g/L | 15.9 a–c | 18.1 a–c | 12.51 a–e | 13.74 a–d | |
| Seaweed at 3 g/L | 16.3 a | 18.6 a | 13.67 ab | 14.92 ab | |
| Yeast extract | Control | 14.9 e–h | 17.1 b–e | 10.97 f–h | 12.08 e–h |
| Seaweed at 1 g/L | 15.3 c–g | 17.0 b–e | 11.72 c–g | 12.23 d–h | |
| Seaweed at 2 g/L | 15.2 c–g | 17.6 a–d | 12.14 c–f | 13.42 b–e | |
| Seaweed at 3 g/L | 15.8 a–d | 17.8 a–c | 13.04 a–c | 13.40 b–e | |
Means between treatments in the same column followed by the same letter were not significantly different according to Tukey’s multiple range test (TMRT) at p ≤ 0.05. Specific effects are indicated with uppercase letters and the interactions are indicated with lowercase letters unless otherwise mentioned.