Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-07-06T18:09:34.371Z Has data issue: false hasContentIssue false

Ultra-mechanical analysis of soils

Published online by Cambridge University Press:  27 March 2009

Amar Nath Puri
Affiliation:
Irrigation Research Institute, Lahore, India
B. R. Puri
Affiliation:
Irrigation Research Institute, Lahore, India

Extract

A micro-pipette for the ultra-mechanical analysis of soils is described. The sources of error in the usual centrifugal methods are discussed and the new method is shown to be simple, accurate and capable of being adopted as a routine method even in the most moderately equipped laboratories. The treatment of the soil with alkaline permanganate to destroy humus does not affect the inorganic soil colloids.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1941

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

Briggs, L. J., Martin, F. O., & Pearce, J. R. (1904). Bull. U.S. Dep. Agric., Bureau of Soils, no. 24.Google Scholar
Marshall, C. E. (1930). Proc. Roy. Soc. A, 126, 427.Google Scholar
Puri, A. N. (1939). Soil Sci. 48, 505.CrossRefGoogle Scholar
Puri, A. N. & Amin, B. M. (1928). Bull. Res. Inst. Pusa, no. 175.Google Scholar
Puri, A. N., Puri, B. R. & Lal, M. (1938). Pb. Irr. Res. Inst. Res. Publ. 4, no. 11.Google Scholar
Puri, A. N. & Lal, M. (1939). Pb. Irr. Res. Inst. Res. Publ. 4, no. 10.Google Scholar
Puri, A. N. & Sarup, A. (1937). Soil Sci. 44, 323.CrossRefGoogle Scholar
Robinson, G. W. (1922). J. agric. Sci. 12, 306–21.CrossRefGoogle Scholar