Table 7. The optimal container types of three species seedlings derived from multiple regression analysis of nitrogen content in nursery (Figure 5).
| Species | Density (No./m2) | Volume (cm3/cavity) |
| Min. | Max. | Min. | Max. |
| Q. serrata | 180 | 210 | 410 | 460 |
| F. rhynchophylla | 100 | 120 | 350 | 420 |
| Z. serrata | 190 | 220 | 380 | 430 |