Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-25T06:34:28.275Z Has data issue: false hasContentIssue false
  • English
  • Français

Release of ammonium and organic matter from soil by hydrofluoric acid and effect of hydrofluoric acid treatment on extraction of soil organic matter by neutral and alkaline reagents

Published online by Cambridge University Press:  27 March 2009

J. M. Bremner  and
T. Harada
J. M. Bremner
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts
T. Harada
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts
Get access Rights & Permissions [Opens in a new window]

Extract

1. The effect of treating mineral soils with hydrofluoric acid to decompose clay minerals on the extraction of soil organic matter by alkaline and neutral reagents has been investigated.

2. It was found that treatment of soil with hydrofluoric acid had little effect on the extraction of organic matter by alkaline or neutral reagents, but that it released considerable amounts of ammonium and organic matter. More than 90% of the nitrogen in Rothamsted soils was dissolved by repeated treatments with dilute solutions of hydrofluoric acid and sodium hydroxide.

3. It is shown that treatment of clay minerals with n-HF:n-HCl solution at room temperature for 24 hr. effects quantitative release of fixed ammonium from clay minerals and that similar treatment of soil is not likely to cause significant decomposition of organic nitrogen compounds to ammonium. It is suggested that a method based on this treatment may prove useful for the determination of fixed ammonium in soil. Results obtained by this method indicated that 4–8% of the nitrogen in surface soils and 19–45% of the nitrogen in subsoils examined was in the form of fixed ammonium.

4. It is concluded that some mineral soils contain a significant quantity of ammonium and organic matter intimately associated with clay minerals and that this clay-bound material is not dissolved by neutral and alkaline reagents used for the extraction of soil organic matter, but is released by hydrofluoric acid.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 52 , Issue 2 , April 1959 , pp. 137 - 146
Copyright
Copyright © Cambridge University Press 1959

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

Alexander, L. T. & Byers, H. G. (1932). U.S.D.A. Tech. Bull. no. 317.Google Scholar
Allison, F. E., Doetsch, J. H. & Roller, E. M. (1951). Soil Sci. 72, 187.CrossRefGoogle Scholar
Allison, F. E., Kefauver, M. & Roller, E. M. (1953). Proc. Soil Sci. Soc. Amer. 17, 107.CrossRefGoogle Scholar
Allison, F. E. & Roller, E. M. (1955). Soil Sci. 80, 349.CrossRefGoogle Scholar
Allison, F. E., Roller, E. M. & Doetsch, J. H. (1953). Soil Sci. 75, 173.CrossRefGoogle Scholar
Bal, D. V. (1925). J. Agric. Sci. 15, 454.CrossRefGoogle Scholar
Barshad, I. (1948). Amer. Min. 33, 655.Google Scholar
Barshad, I. (1951). Soil Sci. 72, 361.CrossRefGoogle Scholar
Bower, C. A. (1951). Proc. Soil Sci. Soc. Amer. 15, 119.CrossRefGoogle Scholar
Bremner, J. M. (1949). J. Agric. Sci. 39, 183.CrossRefGoogle Scholar
Bremner, J. M. (1955). J. Agric. Sci. 46, 247.CrossRefGoogle Scholar
Bremner, J. M. & Lees, H. (1949). J. Agric. Sci. 39, 274.CrossRefGoogle Scholar
Bremner, J. M. & Shaw, K. (1954). J. Agric. Sci. 44, 152.CrossRefGoogle Scholar
Bremner, J. M. & Shaw, K. (1955). J. Agric. Sci. 46, 320.CrossRefGoogle Scholar
Broadbent, F. E. & Bradford, G. K. (1952). Soil Sci. 74, 447.CrossRefGoogle Scholar
Choudhri, M. B. & Stevenson, F. J. (1957). Proc. Soil Sci. Soc. Amer. 21, 508.CrossRefGoogle Scholar
Gottlier, S. & Hendricks, S. B. (1946). Proc. Soil Sci. Soc. Amer. 10, 117.CrossRefGoogle Scholar
Hanway, J. J. & Scott, A. D. (1956). Soil Sci. 82, 379.CrossRefGoogle Scholar
Jones, U. S. (1948). Proc. Soil Sci. Soc. Amer. 12, 373.CrossRefGoogle Scholar
McBeth, I. G. (1917). J. Agric. Res. 9, 141.Google Scholar
Nömmik, H. (1957). Acta agric. Scand. 7, 395.CrossRefGoogle Scholar
Rather, J. B. (1917). Bull. Ark. Agric. Exp. Sta. no. 140.Google Scholar
Rodrigues, G. (1954). J. Soil Sci. 5, 264.CrossRefGoogle Scholar
Schollenberger, C. J. (1930). Soil Sci. 80, 431.Google Scholar
Stanford, G. & Pierre, W. H. (1947). Proc. Soil Sci. Soc. Amer. 11, 155.CrossRefGoogle Scholar
Tinsley, J. (1950). Trans, 4th Int. Congr. Soil Sci. 1, 161.Google Scholar