Titration curves of soil organic matter

ABSTRACT IN a previous paper1 it was claimed that the addition of small amounts of copper sulphate to a suspension of acid-washed organic matter resulted in the release of two hydrogen ions

for each of added copper. This release was detected by titration of portions of the organic matter with alkali in the presence and absence of copper (ref. 1, Fig. 5). Further experiments

with organic matter extracts of peats and podzols have not confirmed a general proton release of this magnitude and are in conformity with the results of Martin and Reeve2. These authors

revealed new complications in such experiments, in particular the important association of aluminium with soil organic matter and the difficulty of removing this metal. The purpose of this

note is to correct the inaccuracy in my earlier paper and to add further information on the ability of soil organic matter to complex transition metals. Access through your institution Buy

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OTHERS SORPTION SITE COMPETITION DETERMINES PHOSPHORUS AVAILABILITY OF AGRIFOOD RESIDUES Article Open access 17 March 2025 UNRAVELING IRON OXIDES AS ABIOTIC CATALYSTS OF ORGANIC PHOSPHORUS

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SOILS: A SHORT-TERM INCUBATION STUDY Article Open access 07 April 2023 REFERENCES * Beckwith, R. S., _Aust. J. Agric. Res._, 6, 685 (1955). Article  CAS  Google Scholar  * Martin, A. E., and

Reeve, R., _J. Soil Sci._, 9, 89 (1958). Article  CAS  Google Scholar  * Quagliano, J. V., and Wilkins, D. H., _“The Chemistry of Coordination Compounds”_. J. C. Bailar, Editor. *

Aleksendrova, L. N., _J. Sci. Food Agric._, 6; Abstracts Pt. i, 63 (1955). * Gregor, H. P., Luttinger, L. B., and Loebl, E. M., _J. Phys. Chem._, 59, 34 (1955). Article  CAS  Google Scholar

  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Division of Soils, Commonwealth Scientific and Industrial Research Organization, Cunningham Laboratory, Brisbane R. S.

BECKWITH Authors * R. S. BECKWITH View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE

THIS ARTICLE BECKWITH, R. Titration Curves of Soil Organic Matter. _Nature_ 184, 745–746 (1959). https://doi.org/10.1038/184745a0 Download citation * Issue Date: 29 August 1959 * DOI:

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