Acetylene reduction (dinitrogen fixation) and nitrification in soil as affected by the structural aggregate size |
| |
Authors: | V. Škrdleta A. Hyndráková M. Němcová |
| |
Affiliation: | 1. Department of Plant Nutrition Physiology,Institute of Experimental Botany, Czechoslovak Academy of Sciences, 16630, Prague 6
|
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |