[7]鲁如坤。土壤农业化学分析方法[M]。北京:中国农业科技出版社,1999。
LU Rukun. Analysis Method of Agricultural Chemistry in Soil [m]. Beijing: Agriculture and Science Press, 1999. (in Chinese), 1999.
[7]鲁如坤。土壤农业化学分析方法[M]。北京:中国农业科技出版社,1999。
LU Rukun. Analysis Method of Agricultural Chemistry in Soil [m]. Beijing: Agriculture and Science Press, 1999. (in Chinese), 1999.
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