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    Author(s): L.R. Auchmoody; L.R. Auchmoody
    Date: 1972
    Source: Res. Pap. NE-239. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5 p.
    Publication Series: Research Paper (RP)
    Station: Northeastern Research Station
    PDF: View PDF  (353.43 KB)

    Description

    Growth of red oak seedlings was examined in relationship to various levels of nitrogen (N), phosphorus (P), and potassium (K) supplied singly and in all combinations to forest soils from the Barbour series. Results showed that seedling growth was significantly affected by NxP and NxPxK interactions; and that, without nitrogen, P and K alone or in combination with each other did not increase growth. These findings suggest that NxP and NxPxK interactions should be considered in designing fertilization tests on soils that have P and K levels similar to or lower than those tested in this study.

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    Citation

    Auchmoody, L.R. 1972. Effects of fertilizer-nutrient interactions on red oak seedling growth. Res. Pap. NE-239. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5 p.

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