Auger Hole Shape, Size, and Tree Placement Affect Survival and Root Form of Planted Ponderosa Pine in South Central Idaho
Ponderosa pine seedlings (2-0) were planted in 4- and 6-inch cylindrical auger holes and in 8-inch holes tapering to 4 inches at the bottom. Fifth-year mean survival of trees planted in the tapered holes was higher than three of four other treatments. The size of the planting hole as well as tree placement in the center or on the side of the hole did not affect survival. Mean seedling height after five growing seasons was unaffected by planting hole size, shape, or tree placement. Planting hole shape and tree placement impacted root system form while planting hole size did not.
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Author(s): John P. Sloan
Publication: National Nursery Proceedings - 1988
Event:
Combined Meeting of the Western Forest Nursery Associations
1988 - Vernon, CAN