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A 70-year-old thinned Fagus-Betula-Acer stand in the Adirondack Mountains of northern New York State was fertilized with varying amounts and combinations of N, P, K, and dolomitic limestone in the spring of 1976. Betula alleghaniensis, Acer saccharum, Acer rubrum, and Fagus grandifolia growth data were obtained for two growing seasons after fertilization. Comparisons were made within species and among treatments, expressed as basal area and cross-sectional area (at 5.27 m height) growth, specific volume growth, and stem form ratio. The overall results indicate that 275 kg/ha N significantly increases radial growth with minor responses to 138 kg/ha P and lime. Potassium additions, on the whole, did not significantly alter growth rates, and individually fertilized trees grew slightly more than trees receiving entire plot applications. No changes in stem form induced by fertilization have been detected. Forest Sci. 25:597-604.
Professor of Forest Soil Science, State University of New York College of Environmental Science and Forestry, Syracuse, New York 13210
Publication date: December 1, 1979
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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.