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    Author(s): Kenneth W. Krueger
    Date: 1967
    Source: Res. Pap. PNW-RP-045. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 13 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (1.1 MB)

    Description

    High-vigor seedlings are required for consistently successful reforestation, and mineral nutrition undoubtedly plays a large role in determining seedling vigor. Though no serious mineral deficiencies were known to exist in Northwest forest nurseries, assurance of adequate seedling nutrition would eliminate this factor as a possible cause of plantation failures. Perspective was gained on Douglas-fir nutrition by determining essential element content in foliage of seedlings growing in 10 selected forest areas and 4 nurseries in Oregon and Washington. On the basis of comparative element levels, possible improvements in nursery fertilization are predicted.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Krueger, Kenneth W. 1967. Foliar mineral content of forest and nursery-grown Douglas-fir seedlings. Res. Pap. PNW-RP-045. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 13 p

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