Ranges of total nitrogen (percent total N on dry weight basis) in leaves of selected landscape tree species from three studies.
| Tree species | Ranges(%) | ||
|---|---|---|---|
| Perry and Hickmanz | Mills and Jonesy | Kopinga and van den Burg* | |
| White mulberry (Moms alba) | 2.0-3.6 | 1.2-2.4 | — |
| White birch (Betula pendula) | 2.2-3.4 | 4.0-4.6 | 2.3-3.3 |
| Goldenrain tree (Koelreuteria paniculata) | 1.9-3.5 | 2.5-2.8 | — |
| Silver maple (Acer saccharinum) | 2.0-3.4 | 2.3-2.6 | 1.9-2.7 |
| Honeylocust (Gleditsia triacanthos) | 2.3-3.1 | 2.4-4.0 | 2.0-2.5 |
| Crapemyrtle (Lagerstroemia indica) | 1.1-3.5 | 1.6-2.1 | — |
| Zelkova (Zelkova serrata) | 1.8-2.8 | 2.3-3.1 | — |
| Chinese pistache (Pistachia chinensis) | 1.6-3.0 | 2.1-2.8 | — |
| Eucalyptus (Eucalyptus spp.) | 1.8-2.1 | 1.2-1.2 | — |
| London planetree (Platanus acerifolia) | 1.4-2.6 | 2.0-2.7 | 2.0-2.6 |
| Tuliptree (Liriodendron tulipifera) | 1.2-2.8 | 1.9-4.3 | 2.6-3.0 |
| Bradford pear (Pyrus calleryana ‘Bradford’) | 1.1-1.9 | 1.6-2.5 | — |
↵z After Perry and Hickman, Current Study. Samples taken from trees growing in landscapes.
↵y After Mills and Jones, 1996. Samples taken from trees growing in botanical gardens, field research plots, and field and container production nurseries.
↵* After Kopinga and van den Burg, 1995. Sample source not given.