Detection of nitrification in a stagnohumic-gley soil

D. W. Hopkins*, A. G. O'Donnell, R. S. Shiel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Three different nitrification assays (short-term nitrifier activity, assimilatory nitrate reductase activity of Lolium perenne, and nitrate accumulation in the absence of plants) were performed either on soil from a naturally acidic stagnohumic-gley or on leaves from L. perenne grown in this soil. Before the investigation the soil was limed and fertilised in a manner consistent with established agricultural pasture improvement strategies. Short-term nitrifier activity was only detected in soils above pH 5.6. However, nitrate reductase activity and nitrate accumulation both showed a near linear increase between soil pH 3.8 and 6.8. These findings are attributed to the nature of the assays, each of which considers a different component of the soil nitrifier population.

Original languageEnglish
Pages (from-to)335-338
Number of pages4
JournalBiology and Fertility of Soils
Volume8
Issue number4
DOIs
Publication statusPrint publication - Dec 1989
Externally publishedYes

Keywords

  • Autotrophy
  • Lime
  • Lolium perenne
  • Nitrate reductase
  • Nitrification
  • Stagnohumic gley

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