Ectomycorrhizal Colonization of Container-Grown Northern Red Oak as Affected by Fertility

John L. Ruehle

doi:10.2737/SE-RN-297

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Ectomycorrhizal Colonization of Container-Grown Northern Red Oak as Affected by Fertility

Informally Refereed

Authors:

John L. Ruehle

Year:

1980

Type:

Research Note

Station:

Southern Research Station

DOI:

https://doi.org/10.2737/SE-RN-297

Source:

Res. Note SE-297. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 8 p.

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Abstract

Abstract - The effects of different fertility regimes on Pisolithus tinctorius ectomycorrhizal development on northern red oak grown in containers was tested in the greenhouse. Artificial infestation of a milled pine bark-sewage sludge growing medium produced the best ectomycorrhizal development (63 percent) when a nutrient solution with 100pg/ml N and 20 pg/ml P was used every 3 weeks. A commercially available nutrient solution (NP-500 &ml) produced the largest seedlings, those rated suitable for planting, but caused a marked reduction in ectomycorrhizal development (Pt = 20 percent). The results indicate that the production of large and vigorous northern red oak seedlings in containers with abundant Pisolithusectomyconizae is strongly dependent on the levels of available nutrients in the growing medium.

Keywords

pisolithus tinctorius, Quercus rubra

Citation

Ruehle, John L. 1980. Ectomycorrhizal Colonization of Container-Grown Northern Red Oak as Affected by Fertility. Res. Note SE-297. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 8 p.