비경작지와 경작지의 Arbuscular 내생균근균의 상대밀도에 관한 연구

The relative density of arbuscular mycorrhiza(AM) in uncultivated grass land and cultivated was investigated. The density of arbuscular mycorrhiza in reed(Phragmites communis) growing land was the highest and then that of in crabgrass(Digitaria sanguinalis), barnyard grass(Echinochloa crus-galli var. frumentace), and eulalia(Miscanthus sinensis var. purpurascens) were followed, in the order of numbers. In the cultivated land with use of chemical fertilizers and pesticides, that were arranged in the order of numbers from bean(Glycine max), sorghum(Sorghum bicolor), leek(Allium fistulosum), perilla(Perilla frutescens var. japonica), strawberry(Fragaria spp.), red pepper(Capsicum annuum) and rice(Oryzae sativa). In organically cultivated land without use any chemical fertilizers and pesticides more than five years, relative density were followed in the order of numbers from reek, perilla, strawberry, and red pepper. The AM density of uncultivated land was the highest then organically cultivated land and conventionally cultivated land were followed. Dominant AM species were different as the host plants were different. However the other species were also observed beside dominant species.