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Physical and chemical properties of exudate between control group and yeast extract sprayed group.
| Physical and chemical properties | Control group | Yeast supplemented group |
|---|---|---|
| pH | 3.67 ± 0.06 | 7.50 ± 0.08 |
| ORP (mV) | 574 ± 8.5 | 386 ± 11.3 |
| S (g/L) | 4.09 ± 0.02 | 2.84 ± 0.01 |
| Fe (mg/L) | 256.3 ± 0.6 | 108.7 ± 0.9 |
| Cu (mg/L) | 20.77 ± 0.02 | 0.107 ± 0.01 |
| Zn (mg/L) | 1.657 ± 0.03 | 0.017 ± 0 |
| Pb (mg/L) | 0.137 ± 0 | 0.027 ± 0 |
