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The Sticky Point Water of Soils. Part II1

Published online by Cambridge University Press:  27 March 2009

B. De C. Marchand
Affiliation:
Division of Chemistry, Department of Agriculture, Cape Town

Extract

Keen and Coutts(8) and Coutts(1) have suggested that the percentage of water in a soil at the sticky point is related to the colloidal content of the soil, as measured by “loss on ignition,” in the following manner:

S = mI + c,

i.e. by a rectilinear equation, and point out that the figure obtained for c approximates to the theoretical percentage of water held in the interstitial spaces of an ideal soil.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1931

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References

REFERENCES

(1)Coutts, J. R. H.Single value” soil properties. A study of the significance of certain soil constants. II. Studies on Natal soils. J. Agric. Sci. (1929), 19, 325.CrossRefGoogle Scholar
(2)Fisher, R. A.Statistical Methods for Research Workers (1925).Google Scholar
(3)Hardy, F.The physical significance of the shrinkage coefficient of clays and soils. J. Agric. Sci. (1923), 13, 243.CrossRefGoogle Scholar
(4)Joseph, A. F.The composition of some Sudan soils. J. Agric. Sci. (1924), 14, 490.CrossRefGoogle Scholar
(5)Joseph, A. F. and Hancock, J. S.The composition and properties of clay. J. Chem. Soc. (1924), 125, 1888.CrossRefGoogle Scholar
(6)Joseph, A. F. and Snow, O. W.The dispersion and mechanical analysis of heavy alkaline soils. J. Agric. Sci. (1929), 19, 106.CrossRefGoogle Scholar
(7)Keen, B. A. and Raczkowski, H.Relation between the clay content and certain physical properties of a soil. J. Agric. Sci. (1921), 11, 441.CrossRefGoogle Scholar
(8)Keen, B. A. and Coutts, J. R. H.“Single value” soil properties: a study of the significance of certain soil constants. J. Agric. Sci. (1928), 18, 740.CrossRefGoogle Scholar
(9)Marchand, B. de C.The origin of black turf soils in the Transvaal. S. Afr. J. Sci.(1924), 21, 162.Google Scholar
(10)Marchand, B. de C.The sticky point water of soils. S. Afr. J. Sci. (1930), 27, 183.Google Scholar
(11)Marchand, B. de C.Note on some physical properties of soils. S. Afr. J. Sci. (1926), 23, 238.Google Scholar
(12)Marchand, B. de C. and van der Merwe, C. R.On the composition of the fractions separated by mechanical analysis from some Transvaal soils. S. Afr. J. Sci. (1925), 22, 104.Google Scholar
(13)Oakley, H. B.Plasticity and water absorption of clays. Nature (1929), 123, 714.CrossRefGoogle Scholar
(14)Van Wyk, D. J. R.The soil solution and its relation to the soil colloids. Report of Proceedings, 1st Triennial Conference Union Dept. of Agric. (1929), p. 461.Google Scholar
(15)Van Zyl, J. P.Routine mechanical analysis of soils by the Robinson method. Report of Proceedings, 1st Triennial Conference Union Dept. of Agric. (1929), p. 409.Google Scholar
(16)Whitfeild, B. W.Report of the Sudan Government Chemist (1929), p. 16.Google Scholar