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 |
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Format: | Artikel |
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. |
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ISSN: | 0015-5632 1874-9356 |
DOI: | 10.1007/BF02927123 |