Question

Soil bacteria are responsible for any steps in the nitrogen

Answer 1

Soil bacteria are mainly involved in four steps in nitrogen cycle.

1. Nitrogen fixation
2. Nitrification
3. Ammonification
4. Denitrification

Step-by-step explanation:

• First of all atmospheric nitrogen is fixed by soil bacteria (N2 to NH3/ NH4+, NO3-)
• Nitrification: The conversion of ammonium to nitrate is performed primarily by soil-living bacteria and other nitrifying bacteria (NH3 to NO3-)
• When a plant or animal dies or an animal expels waste, the initial form of nitrogen is organic. Bacteria or fungi convert the organic nitrogen within the remains back into ammonium (NH+4), a process called ammonification.
• Denitrification is the reduction of nitrates back into nitrogen gas (N2), completing the nitrogen cycle. This process is performed by bacterial species such as Pseudomonas and Clostridium in anaerobic conditions.