Soil Aeration and Plant Root Relations. III. Physical Aspects of Oxygen Diffusion in the Liquid Phase of the Soil1

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Abstract
Synopsis: This paper first takes up the oxygen “supply” characteristics of the soil environment, considering the various soil parameters required in the simple model for oxygen diffusion near plant roots. Finally the “demand” and “supply” aspects of oxygen in the root‐soil system is integrated demonstrating that the two aspects are interdependent. Quantitative data offer evidence of the limits imposed by root respiration and soil aeration in the immediate root environment.

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