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Redox potential trends in a submerged rice soil

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Summary

Different levels of added fresh organic matter have had no significant effects on E h values in a submerged rice field. The effect of cropping during the period of intensive vegetative growth is to depress the redox potential of the soil. This effect is evidently due to oxygen consumption by the roots in respiration being greater than oxygen transport through the plant and subsequent diffusion out of the root.

Higher E h values in the bare plots at the lower depths suggest lateral oxygen diffusion through the vertical face of the terrace. The absence of a marked depression in redox potential following submersion of a terraced rice field is an important observation.

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Authors and Affiliations

  1. Department of Agriculture, University of Ceylon, Sri Lanka

    F. S. C. P. Kalpagé

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  1. F. S. C. P. Kalpagé
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Kalpagé, F.S.C.P. Redox potential trends in a submerged rice soil. Plant Soil 23, 129–136 (1965). https://doi.org/10.1007/BF01349123

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  • DOI: https://doi.org/10.1007/BF01349123

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