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    Author(s): L. O. Safford
    Date: 1973
    Source: Research Note NE-182. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
    Publication Series: Research Note (RN)
    Station: Northeastern Research Station
    PDF: View PDF  (248.47 KB)

    Description

    In a 60-year-old northern hardwood stand treated with lime plus NPK fertilizer, the following increases in average basal area growth rate over untreated trees were observed: sugar maple 128 percent, paper birch 69 percent, yellow birch 51 percent, and beech 20 percent. Magnitude of response was inversely related to relative growth rate of the species. Growth rate before treatment was used as a covariate to adjust treatment means for differences in vigor of the trees.

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    Citation

    Safford, L. O. 1973. Fertilization increases diameter growth of birch-beech-maple trees in New Hampshire. Research Note NE-182. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.

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