Growth Responses of Northern Hardwoods to Fertilization
Authors: Lea, R.; Tierson, W. C.; Leaf, A. L.
Source: Forest Science, Volume 25, Number 4, 1 December 1979 , pp. 597-604(8)
Publisher: Society of American Foresters
Abstract: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.
Document Type: Journal Article
Affiliations: 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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