Table 3.
The impact of biochar on cob diameter and cob length grown in spring and autumn seasons with wastewater.
| Biochar rate (Mg ha−1) | Cob diameter (mm) | Cob length (cm) | SPAD value |
|---|---|---|---|
| Spring 2022 | |||
| 0 | 41.34 ± 1.38a | 18.04 ± 0.14a | 56.57 ± 3.88a |
| 5 | 44.27 ± 0.76a | 19.39 ± 0.28a | 59.77 ± 3.84a |
| 10 | 42.87 ± 3.67a | 19.51 ± 0.54a | 60.63 ± 2.72a |
| Autumn 202 | |||
| 0 | 41.71 ± 0.98a | 18.45 ± 0.51a | 60.27 ± 1.31a |
| 5 | 43.78 ± 1.07a | 19.22 ± 0.37a | 61.3 ± 4.73a |
| 10 | 44.96 ± 1.06a | 19.3 ± 0.50 a | 61.93 ± 4.74a |
Values are the mean and standard deviation (n = 3). Values with the same letters within the season are statistically not significant at p < 0.05.