In waterlogged agricultural soils, the concentration of oxygen is very low, creating anaerobic conditions.
Under these conditions, certain species of bacteria convert dissolved nitrates (NO3−\text{NO}_3^-NO3−) in the soil into nitrogen gas (N2\text{N}_2N2), which escapes into the atmosphere. This process reduces soil fertility.
The bacterium Pseudomonas denitrificans is responsible for this conversion.
Pseudomonas denitrificans bacteria are an example of:
nitrogen-fixing bacteria
nitrifying bacteria
denitrifying bacteria
decomposer bacteria
