Question

what is biological nitrogen fixation give examples of microbes associated with the fixation​

Answer 1

Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms.

Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella. As previously noted, these organisms must find their own source of energy, typically by oxidizing organic molecules released by other organisms or from decomposition.

Answer 2

✌️ Heya mate ✌️

Some bacteria , and blue-green algae (cyanobacteria), are able to 'fix' (for use by plants) atmospheric nitrogen into usable forms of salts of nitrogen . They are called biological nitrogen fixation..

Rhizobium lives in symbiotic association in the roof nodules of leguminous plants and enriches the soil with nitrogen compounds...

I hope it helps you..

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