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Plant and Soil

, Volume 70, Issue 1, pp 143–146 | Cite as

Humified phenol-rich plant residues and soil urease activity

  • K. Sivapalan
  • V. Fernando
  • M. W. Thenabadu
Short Communications

Summary

A greenhouse experiment was conducted to examine the comparative effects of phenolrich and phenol-poor plant residues after prolonged decomposition, on the urease activity of an acid soil. Addition of organic residues increased soil urease activity over that of control; but soils amended with phenol-rich residues had a urease activity which was about 50% lower than that of soils amended with phenol-poor residues. This reduction in soil urease activity was attributed to the higher content of soil polyphenols present in the soils amended with phenol-rich residues.

Key words

Humification Polyphenolic substances Soil urease 

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Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1983

Authors and Affiliations

  • K. Sivapalan
    • 1
  • V. Fernando
    • 1
  • M. W. Thenabadu
    • 2
  1. 1.Tea Research Institute of Sri LankaTalawakelleSri Lanka
  2. 2.Faculty of AgricultureUniversity of PeradeniyaPeradeniyaSri Lanka

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