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Tomato experimental design
| Combination | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Depth (D) | D15 | D15 | D15 | D40 | D40 | D40 |
| Aeration (A) | AN | A2 | A4 | AN | A2 | A4 |
D15, subsurface tubing placement depth at 15 cm; D40, subsurface tubing placement depth at 40 cm; AN, aeration treatments were none; A2, aeration at 2-day; A4, aeration at 4-day
