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Fertilization and spacing effects on growth of planted ponderosa pine.Author(s): P.H. Cochran; R.P. Newman; James W. Barrett
Source: Res. Note PNW-RN-500. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 16 p
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
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DescriptionFertilizer placed in the planting hole increased height growth of ponderosa pine (Pinus ponderosa Dougl. ex Laws.) early in the life of the plantation. Later broadcast applications of fertilizer may have had little effect on growth. Wider spacings produced larger trees but less volume per acre than narrower spacings after average tree height exceeded 7 feet. Fertilization produced larger trees and more volume per acre at each spacing.
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CitationCochran, P.H.; Newman, R.P.; Barrett, James W. 1991. Fertilization and spacing effects on growth of planted ponderosa pine. Res. Note PNW-RN-500. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 16 p
KeywordsNutrient availability, indirect fertilization effects, root development
- Management of ponderosa pine nutrition through fertilization
- Multiaged silviculture of ponderosa pine
- Self-fertility of a central Oregon source of ponderosa pine.
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