RT Journal Article SR Electronic T1 Reduction of Oak Chlorosis with Wood Chip Mulch Treatments JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 275 OP 278 DO 10.48044/jauf.1990.061 VO 16 IS 10 A1 Himelick, E.B. A1 Watson, Gary W. YR 1990 UL http://auf.isa-arbor.com/content/16/10/275.abstract AB 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.