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The relations between certain soil moisture constants and the determination of the vesicular coefficients of soils

Published online by Cambridge University Press:  27 March 2009

C. H. Wright
C. H. Wright
Affiliation:
(Agricultural Department, Nigeria.)
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Extract

1. Evidence is produced to show that the free water in a soil is 21.

2. Wilsdon's modification of the Briggs-Shantz equation is discussed, viz., M = xH + 21, in which x = the vesicular coefficient. From this equation the vesicular coefficient of any soil can be found from the values of M and H.

3. The values thus obtained agree for clay soils with those found by Hardy's method from the moisture at the point of maximum plasticity.

4. The vesicular coefficient of a soil is greater than that of its subsoil.

5. The total bound water = (M – 21), and the vesicular water = M – (21 + H). The vesicular water expressed as a percentage of the plastic soil is equal to the cubical shrinkage coefficient.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 16 , Issue 1 , January 1926 , pp. 18 - 23
Copyright
Copyright © Cambridge University Press 1926

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References

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