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Published online 1 May 1964
Published in Agron J 56:328-332 (1964)
© 1964 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Pans in the Southern Great Plains Soils. I. Why Root-Restricting Pans Occur1

H. M. Taylor, A. C. Mathers and F. B. Lotspeich2

Synopsis: Seventeen root-restricting pans of the Southern Great Plains were investigated. The concept that soil pans are either genetic in origin or that they develop as a result of man's manipulation of the soil can explain less than half of the cases. The theory is developed that the root-restricting features of these 17 pans are caused by excessive soil strength that occurs largely as a result of soil drying.

1 Contribution from the Southern Plains Branch, Soil and Water Conservation Research Division, ARS, USDA, in cooperation with the Texas Agricultural Experiment Station.

2 Research Soil Scientists, USDA, Bushland, Texas.

Received for publication September 23, 1963.




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Copyright © 1964 by the American Society of Agronomy.