Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-03T05:17:41.733Z Has data issue: false hasContentIssue false
  • English
  • Français

A rapid electrometric method for measuring “lime requirements” of soils

Published online by Cambridge University Press:  27 March 2009

F. Hardy  and
A. H. Lewis
F. Hardy
Affiliation:
(Imperial College of Tropical Agriculture, Trinidad, B.W.I.)
A. H. Lewis
Affiliation:
(Imperial College of Tropical Agriculture, Trinidad, B.W.I.)
Get access Rights & Permissions [Opens in a new window]

Extract

1. A method for the rapid determination of lime requirements in laboratories equipped with the quinhydrone electrode is described. (10 gm. of soil are mixed in a small wide-mouthed bottle with 40 c.c. of neutral 0·2 M CaCl2 solution. The mixture is then titrated with 0·03 N lime-water in successive portions of 5 c.c, with three minutes' shaking between each addition. The pH value of the mixture is determined after each addition, and the titration continued until the reaction has passed pH 7·0. The results are plotted, and the exact volume of limewater needed to give a final reaction of pH 7·0 is estimated from the graph.)

2. The method is compared with the Hutchinson-MacLennan method for a series of soils of different textures and different initial exchange reactions. It appears to yield more reliable results; it is less tedious; it is very rapid, and results obtained thereby can readily be reproduced.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 19 , Issue 1 , January 1929 , pp. 17 - 25
Copyright
Copyright © Cambridge University Press 1929

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

(1)Hutchinson, H. B. and Maclennan, K.Studies on the Lime Requirements of Certain Soils. J. Agric. Sci. (1915), 7, 75.CrossRefGoogle Scholar
(2)Fisher, E. A.Studies on Soil Reaction, I. J. Agric. Sci. (1921), 11, 19.CrossRefGoogle Scholar
(3)Crowther, E. M. and Martin, W. S.Studies on Soil Reaction, VI. J. Agric. Sci. (1925), 15, 237.CrossRefGoogle Scholar
(4)Christensen, H. R. and Jensen, S. T.On the Quantitative Determination of the Lime Requirement of the Soil. Trans. Second Com. Internat. Soc. Soil Sci. (1926), A, 94.Google Scholar
(5)Daikuhara, G.Ueber saure Mineralboden. Bull. Imp. Centr. Expt. Sta., Japan (1914), 2, 1.Google Scholar
(6)Trénel, M.Can the Lime Requirements of the Soil be determined from the Reaction of Soil Suspensions containing Potassium Chloride? Proc. Internat. Soc. Soil Sci. (1925), 1, 199.Google Scholar
(7)Sörensen, S. P. L., Sörensen, M. and Linderström-Lang, K.. Compt. rend. Lab. Carlsberg (1921), 14, 1.Google Scholar
(8)Hissink, D. J.Base Exchange in Soils. Faraday Soc., General Discussion (1924), 551.Google Scholar
(9)Bradfield, R.The Importance of H-ion Concentration Control in Physicochemical Studies of Heavy Soils. Soil Sci. (1924), 17, 411.CrossRefGoogle Scholar