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北原 郁文, 井上 恵子, 中嶋 靖之, 庄籠 徹也. "7 鉱害復旧田の地力増強法 : 第1報 心土が混入した作土の地力増強(九州支部講演会講演要旨(その2))." Abstracts of the Annual Meetings, Japanese Society of Soil Science and Plant Nutrition 37.0 (1991) 355