| Treatment | Bulk density (g/cc) | Number of trees |
|---|---|---|
| Airport test area | ||
| Grow Gun | 1.53 | 5 |
| Terralift | 1.50 | 5 |
| Core Aeration | 1.54 | 5 |
| Water Injection | T.50 | 5 |
| Control | 1.53 | 5 |
| Freeway median | ||
| Grow Gun | 1.64 | 21 |
| Terralift | 1.66 | 23 |
| Core Aeration | 1.70 | 11 |
| Water Injection | 1.58 | 10 |
| Control | 1.75 | 11 |
No bulk density values are significantly different.