Comparison of arbuscular mycorrhizal fungal flora under different cropping systems in a Light-colored Andosol of Japan

概要

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The difference in the composition of the arbuscular mycorrhizal fungal flora under six different cropping systems in a Light-colored Andosol of Japan was investigated. Six cropping systems included 'fallow (weeding)-barley', 'fallow (no weeding)-barley' 'soybean-barley', 'maize-barley', 'cotton-barley' and 'sugar beet-barley'. Total number of spores after the 1 st cropping in the summer season was high in the fallow (no weeding), soybean, maize and cotton plots, and low in the fallow (weeding) and sugar beet plots. Common purslane, Henry crabgrass and common nightshade were dominant in the fallow (no weeding) plots. Pot experiment showed that in the case of Henry crabgrass the number of arbuscular mycorrhizal fungal spores increased significantly. After the 2 nd cropping (barley) in the winter season, a higher number of spores of Glomus spp. was found than after the 1 st cropping. In this study, it was demonstrated that the arbuscular mycorrhizal fungal flora was influenced by cropping systems in a Light-colored Andosol of Japan.
日本土壌微生物学会の論文
1997-10-01