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Proceedings of Past Forest Nursery Association Meetings:

Undercutting in Loblolly and White Pine Seedbeds
Dierauf, T.A.
1994: Williamsburg, VA
In seven studies installed in six different years, undercutting loblolly pine seedlings has had little effect on survival for our sandy New Kent and Sussex nurseries. For six studies, survival improvement ranged from +2 to -1 percentage points and averaged only one percentage point. White pine survival, on the other hand, was improved considerably by undercutting. Survival increases ranged from 13 to 20 percentage points for five studies, and averaged 18 points.
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