Author:
Kuwatsuka Shozo,Tsutsuki Kiyoshi,Kumada Kyoichi
Subject
Plant Science,Soil Science
Reference15 articles.
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2. Chemical Composition and Physical Properties of Humic Substances
3. Kononova, M.M. 1961.Soil organic matter its nature, its role in soil formation and in soil fertility, 90–90. New York: Pergamon Press.
4. Kumada, K. 1977.Dojoyukibutsu no kagaku (Chemistry of Soil Organic Matter), 220–220. Univ. of Tokyo Press. (in Japanese)
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