Hostname: page-component-848d4c4894-cjp7w Total loading time: 0 Render date: 2024-06-19T20:14:02.600Z Has data issue: false hasContentIssue false
  • English
  • Français

The determination of the volume and air space of soil clods

Published online by Cambridge University Press:  27 March 2009

E. W. Russell  and
W. Balcerek
E. W. Russell
Affiliation:
Soil Physics Department, Rothamsted Experimental Station, Harpenden, Herts
W. Balcerek
Affiliation:
Soil Physics Department, Rothamsted Experimental Station, Harpenden, Herts
Get access Rights & Permissions [Opens in a new window]

Extract

A method is described for determining the field volume and the air space of a clod of any shape by filling its pores with a hydrocarbon oil, such as paraffin or tetralin, and determining its weight in the oil and in air before and after impregnation. The method appears to work well for clods of any moisture content.

This method is shown to give values of these volumes entirely comparable with those given by the other accurate methods described in the literature. Its accuracy for clods of Rothamsted soil, weighing between 20 and 500 g., was probably at least 1 part per thousand, i.e. 0-1%.

The method has been applied to the determination of the available water held by a soil and has been used to illustrate the effect of long-continued applications of farmyard manure to a soil in increasing the amount of available water it can hold.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 34 , Issue 3 , July 1944 , pp. 123 - 132
Copyright
Copyright © Cambridge University Press 1944

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Davidson, A. L. C. & Schofield, R. K. (1942). J. Agric. Sci. 32, 413–27.CrossRefGoogle Scholar
Haines, W. B. (1923). J. Agric. Sci. 13, 296–310.CrossRefGoogle Scholar
Mishchenko, N. F. (1932). Soil Res. 3, 24–36.Google Scholar
Pigulevsky, M. C. (1936). Principles and Methods of the Experimental Study of Soil Deformations. Reprinted from Theory, Construction and Manufacture of Agricultural Machines Pt II. Moscow, Leningrad: Selkhozgiz.Google Scholar
Sekera, F. (1931). Z. PftErnähr. Düng. A, 22, 87–111.CrossRefGoogle Scholar
Shaw, C. F. (1917). J. Amer. Soc. Agron. 9, 38–42.CrossRefGoogle Scholar
Sideri, D. I. (1936). Soil Sci. 41, 135–51.CrossRefGoogle Scholar
Tjulin, A. F. & Skljar, A. I. (1937). Physics of Soils. Trans. VIUAA, 18, 100–5.Google Scholar
Trnka, R. (1914). Int. Mitt. Bodenk. 4, 363–87.Google Scholar
Vilensky, D. G. (1935). Pedology, 787–96.Google Scholar
Visser, W. C. (1937). Soil Sci. 44, 467–80.CrossRefGoogle Scholar