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Published online 1 May 1964
Published in Agron J 56:295-301 (1964)
© 1964 American Society of Agronomy
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Soil Aeration and Plant Root Relations. III. Physical Aspects of Oxygen Diffusion in the Liquid Phase of the Soil1

K. J. Kristensen and E. R. Lemon2

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.

1 Contribution from the Soil and Water Conservation Research Division, ARS, USDA, in cooperation with the Department of Agronomy, Cornell University, Ithaca. N. Y.

2 Former Kellogg Foundation Fellow, Department of Agronomy (now associated with the Hydrotechnical Laboratory, Royal Veterinary and Agricultural College, Copenhagen, Denmark) and Research Soil Scientist (Physics) USDA and Professor, Cornell University, Ithaca, N. Y., respectively.

Received for publication September 30, 1963.




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Journal of Natural Resources
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Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1964 by the American Society of Agronomy.