Acetylene reduction (dinitrogen fixation) and nitrification in soil as affected by the structural aggregate size

The effect of size of structural aggregates on the intensity of nitrification and nitrogenase (nitrogen: acetylene oxidoreductase) activity was investigated in three soils. In two of them the nitrogenase activity was limited by addition of glucose. Aggregates of a larger diameter (2-4 mm) exhibited...

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Veröffentlicht in:Folia microbiologica 1979-01, Vol.24 (5), p.403-407
Hauptverfasser: Skrdleta, V, Hyndráková, A, Nĕmocová, M
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Sprache:eng
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Zusammenfassung:The effect of size of structural aggregates on the intensity of nitrification and nitrogenase (nitrogen: acetylene oxidoreductase) activity was investigated in three soils. In two of them the nitrogenase activity was limited by addition of glucose. Aggregates of a larger diameter (2-4 mm) exhibited a considerably higher nitrogenase activity than those with a diameter smaller than 2 mm. This effect was even more pronounced when the soil samples were repeatedly intensively aerated. On the contrary, smaller aggregates (0.5-2 mm) exhibited more intensive nitrification.
ISSN:0015-5632
1874-9356
DOI:10.1007/BF02927123