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Arboriculture & Urban Forestry Online
Volume 16, Issue 10 — October 1990

Reduction of Oak Chlorosis with Wood Chip Mulch Treatments    (View PDF)

E.B. Himelick and Gary W. Watson

Abstract: Wood chip mulch and ammonium sulfate treatments around urban white oaks (Quercus alba) were associated with favorable changes in soil properties. Bulk density and pH were lower, and moisture content was higher under the mulch. Fine root development and number of mycorrhizal roots were also increased. Foliar manganese increased and phosphorous decreased. These changes were associated with a reduction of interveinal chlorosis.


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