Acetylene reduction (dinitrogen fixation) and nitrification in soil as affected by the structural aggregate size
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
294405
DOI
10.1007/bf02927123
Knihovny.cz E-zdroje
- MeSH
- acetylen metabolismus MeSH
- Bacteria metabolismus MeSH
- dusičnany metabolismus MeSH
- fixace dusíku MeSH
- nitrogenasa metabolismus MeSH
- oxidace-redukce MeSH
- půda MeSH
- půdní mikrobiologie * MeSH
- velikost částic MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- acetylen MeSH
- dusičnany MeSH
- nitrogenasa MeSH
- půda MeSH
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.
