1.

図書
図書
1. Physical and mineralogical properties, including statistics of measurement and sampling
edited by C.A. Black
出版情報: Madison, Wis. : American Society of Agronomy, 1965
シリーズ名: Agronomy ; no. 9 . Methods of soil analysis ; pt. 1
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2.

図書
図書
2. Chemical and microbiological properties
edited by C.A. Black
出版情報: Madison, Wis. : American Society of Agronomy, 1965
シリーズ名: Agronomy ; no. 9 . Methods of soil analysis ; pt. 2
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