Table 1. Nine treatments (NaCl × K2SiO3·nH2O) designed in this experiment.
| NO. | NaCl (mM) | K2SiO3·nH2O (g/L) |
|---|---|---|
| 1 | 0 | 0 |
| 2 | 0 | 0.5 |
| 3 | 0 | 1.0 |
| 4 | 100 | 0 |
| 5 | 100 | 0.5 |
| 6 | 100 | 1.0 |
| 7 | 200 | 0 |
| 8 | 200 | 0.5 |
| 9 | 200 | 1.0 |
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