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ABSTRACT
The rhizoplane mycofloras of little bluestem (Schizachyrium scoparium) were compared in unfumigated and fumigated soils to which selected inorganic nutrients were added. Thirty-four fungal taxa were isolated and 20 were common to unfumigated and fumigated soil 17 months after fumigation. Species richness (i.e., number of species) was greater on the unfumigated site (33 species) than the fumigated site (21 species). Addition of inorganic nutrients to the soil did not have significant effects on the occurrence of the eight most abundant rhizoplane species. Tests for interspecific association among the eight most frequently occurring species revealed that most of these species had significant negative associations with each other.