Raamatud Jacob Goodale Lipman
Laboratory Guide in Soil Bacteriology
Jacob Goodale Lipman, Percy Edgar Brown
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Laboratory Guide in Soil Bacteriology
Jacob Goodale Lipman, Percy Edgar Brown
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Factors Relating To The Availability Of Nitrogenous Plant-foods, Volumes 250-259
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Factors Relating To The Availability Of Nitrogenous Plant-foods, Volumes 250-259...
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Cylinder Experiments Relative To The Utilization And Accumulation Of Nitrogen...
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Influence of Lime Upon the Yield of Dry Matter and Nitrogen Content of Alfalfa, Volumes 314-335...
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The Value Of Nitrate Of Soda In Crop Production, Volumes 314-335...
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Miscellaneous Vegetation Experiments, Volumes 250-259...
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Pot Experiments On The Availability Of Nitrogen And Organic Compounds, Volumes 275-287...
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Nitrogen Utilization In Field And Cylinder Experiments, Volumes 260-274...
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Field Experiments On The Availability Of Nitrogenous Fertilizers, Volumes 260-274...
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The Availability Of Nitrogenous Materials As Measured By Ammonification...
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