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黒土の腐植に関する研究(第3報) : Pulfrich Photometer に依る研究
Studies on the Humus of Black Soil (Part 3). : Results by Pulfrich Photometer
1953
Japanese Journal of Soil Science and Plant Nutrition
Studies on the Humus of Black Soil (Part 3). : Results by Pulfrich Photometer
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