Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-15T01:46:58.305Z Has data issue: false hasContentIssue false
  • English
  • Français

Iron equilibrium in submerged soils as influenced by green manuring and iron application

Published online by Cambridge University Press:  27 March 2009

H. S. Thind  and
D. S. Chahal
H. S. Thind
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, India
D. S. Chahal
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, India
Get access Rights & Permissions [Opens in a new window]

Summary

A pot experiment was made to study the effect of green manuring and iron application on the pE, pH, Fe concentration and iron equilibria in a calcareous and a noncalcareous soil. Green manuring drastically decreased the pE and pH and increased the Fe concentration of the equilibrium soil solution to a greater extent than submergence alone. Addition of Fe decreased pE, pH and increased Fe concentration both with and without green manuring. In calcareous soil pE and pH were high and Fe concentration was low compared with non-calcareous soil. In the absence of green manure and added iron, although there were wide variations in pE, pH and Fe concentration, Fe(OH)3-Fe2+; Fe3(OH)8-Fe2 + and Fe(OH)3-Fe3(OH)8 systems were controlling the solubility of Fe after 1 week of submergence in both the soils. But on green manuring all the above systems in calcareous soil and only Fe(OH)3-Fe3(OH)8 system in non-calcareous soil were operating at 1 week of submergence and continued afterwards. Addition of iron, with and without green manure, failed to bring an appreciable effect on these systems in calcareous and as well as in non-calcareous soil.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 1 , August 1983 , pp. 207 - 212
Copyright
Copyright © Cambridge University Press 1983

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

Gotoh, S. & Patrick, W. H. Jr (1974). Transformation of iron in a waterlogged soil as influenced by redoxpotential and pH. Soil Science Society of America Proceedings 38, 66–71.CrossRefGoogle Scholar
International Rice Research Institute (1964). Annual Report. Los Baños, Philippines: International Rice Research Institute.Google Scholar
Katyal, J. C. (1977). Influence of organic matter on the chemical and electro-chemical properties of some flooded soils. Soil Biology and Biochemistry 9, 259–266.CrossRefGoogle Scholar
Olumu, M. O., Racz, G. J. & Cho, C. M. (1973). Effect of flooding on the Eh, pH and concentrations of Fe and Mn in several Manitoba soils. Soil Science Society of America Proceedings 37, 220–224.CrossRefGoogle Scholar
Patrick, W. H. Jr & Mahapatra, I. C. (1968). Transformation and availability of nitrogen and phosphorus in waterlogged soils. Advances in Agronomy 20, 323–359.CrossRefGoogle Scholar
Ponnamperuma, F. N. (1972). The chemistry of submerged soils. Advances in Agronomy 24, 29–96.CrossRefGoogle Scholar
Ponnamperuma, F. N., Martinez, E. & Loy, T. (1966). Influence of redox-potential and partial pressure of carbon dioxide on pH values and the suspension effect of flooded soils. Soil Science 101, 421–431.CrossRefGoogle Scholar
Ponnamperuma, F. N., Tianco, E. M. & Loy, T. (1967). Redox equilibria in flooded soils: I. The iron hydroxide systems. Soil Science 103, 374–382.CrossRefGoogle Scholar