| N | P | K | Ca | Mg |
| Remaining (%) | ||||
Needles | 43 | 8 | 8 | 61 | 28 |
Branches | 33 | 11 | 10 | 42 | 41 |
Twigs | 94 | 42 | 10 | 54 | 55 |
Floor litter | 104 | 21 | 30 | 55 | 54 |