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    Author(s): David S. Priester; William R. Harms
    Date: 1971
    Source: Res. Note SE-150. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 6 p.
    Publication Series: Research Note (RN)
    Station: Southeastern Forest Experiment Station
    PDF: View PDF  (162 KB)

    Description

    Microbial populations were counted in agar-plated samples of two swamp soils collected in summer and winter. Number of aerobic and anaerobic microorganisms differed significantly among the soils and between seasons. Alluvial soil from the river swamp was high in organic matter, N, K, Ca, and pH and averaged 88 million microorganisms per gram over the growing season. Nonalluvial soil from the headwater swamp was somewhat lower in organic matter, nutrients, andpH and averaged 75 million microorganisms per gram. During the winter, numbers of microorganisms dropped to less than half the summer population. Numbers of aerobic bacteria and actinomycetes were negatively related to soil moisture; numbers of anaerobic bacteria were positively related.

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    Citation

    Priester, David S.; Harms, William R. 1971. Microbial Populations in Two Swamp Soils of South Carolina. Res. Note SE-150. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 6 p.

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