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だれでもできるやさしい土のしらべかた 土壌のしくみとはたらきを学ぶ25の実験, 塚本明美・岩田進午著, 21×15cm, 127pp., 定価1,600円(本体), 合同出版(東京), 2005年11月1日
2006
Japanese Journal of Soil Science and Plant Nutrition
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