About Us | Help Videos | Contact Us | Subscriptions



This article in SSSAJ

  1. Vol. 44 No. 3, p. 601-606
    Received: Sept 24, 1979
    Accepted: Feb 14, 1980

Request Permissions


The Penetration Resistance in a Soil with Well-defined Structural Units1

  1. J. M Bradford2



Based on both laboratory and in situ probe penetration tests within each horizon of a soil with well-defined structural units, the magnitude and variability of probe resistance values in relation to probe diameter and structural features are presented. Total penetration resistance was equal for 0.376- and 0.514 cm-diam 60° angle probes; however, the resistance standard deviation and coefficient of variation were larger for the smaller probe. A pocket penetrometer gave significantly larger penetration resistances. There was a close relationship between probe penetration resistance of a 0.376-cm-diam probe and root length in natural B3 horizon.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America