Response of Pine and Mixed Hardwood Stands in the Tennessee Valley to Nitrogen and Phosphorus Fertilization
Five-year response (basal area growth) of pine and mixed hardwood stands to a single application of nitrogen and phosphorus fertilizers was studied in 37 tests throughout the Tennessee Valley. Nitrogen effects were consistently positive, although highly variable among locations. Supplementing nitrogen with phosphorus produced a small additional mean response, but was not consistently effective. Responses during the fourth and fifth years after treatment were less than during the first 3 years. The most responsive species was yellow-poplar. Nitrogen and phosphorus fertilization was reflected in mineral content of leaves. Forest Sci. 16:130-136.
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Document Type: Journal Article
Affiliations: Ecologist, Radiation Ecology Sect., Oak Ridge Nat. Lab, Oak Ridge, Tennessee
Publication date: 1970-06-01
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- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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