Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-29T11:15:44.075Z Has data issue: false hasContentIssue false
  • English
  • Français

Dispersion studies on Gezira soil

Published online by Cambridge University Press:  27 March 2009

T. N. Jewitt
T. N. Jewitt
Affiliation:
Agricultural Research Institute, Wad Medani, Anglo-Egyptian Sudan
Get access Rights & Permissions [Opens in a new window]

Extract

1. The degree of dispersion on shaking of the heavy clay Gezira soil has been studied in relation to its initial moisture content when it is added to the water. A minimum dispersibility was found at about 7% initial moisture content. Such behaviour is different from that found with certain English soils by Puri & Keen.

2. Spontaneous dispersion was studied using the same soil, and by this method it was found that the dispersion decreases with increasing moisture content over a range of zero to 9% moisture.

3. This relation between dispersion and water content is discussed in relation to possible effects in the field of practice. Attention is drawn to possible seasonal and daily differences in the effect of rainfall.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 31 , Issue 4 , October 1941 , pp. 466 - 478
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

Clouston, T. W. (1937). Sudan Govt. Annual Rep. Agric. Res. Service, p. 36.Google Scholar
Clouston, T. W. (1938). Sudan Govt. Annual Rep. Agric. Res. Service, p. 42.Google Scholar
Crowther, E. M. (1926). Sudan Govt. Rep. of a meeting in the Sudan Gezira in Dec. 1925, p. 18.Google Scholar
Crowther, E. M. & Crowther, F. (1935). Proc. roy. Soc. B, 118, 343.Google Scholar
Diseker, E. G. & Yoder, R. E. (1936). Bull. Ala. Polytech. Inst. no. 245, p. 12.Google Scholar
Duley, F. L. & Kelly, L. L. (1939). Bull. Neb. Sta. agric. Exp. Res. no. 112.Google Scholar
Greene, H. (1928 a). J. agric. Sci. 18, 518.Google Scholar
Greene, H. (1928 b). J. agric. Sci. 18, 531.CrossRefGoogle Scholar
Joseph, A. F. & Snow, O. W. (1929). J. agric. Sci. 19, 106.Google Scholar
Middleton, H. E. (1930). Tech. Bull. U.S. Dep. Agric. no. 178.Google Scholar
Neal, J. H. (1938). Res. Bull. Mo. agric. Exp. Sta. no. 280.Google Scholar
Puri, A. N. & Keen, B. A. (1925). J. agric. Sci. 15, 147.Google Scholar