Question

write the role of micro organism which involve in a nitrogen cycle ?
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Answer 1

Answer:

They are known as the decomposers

Explanation:

Microorganisms play an important role in improving soil fertility and involved in all aspects of N cycling, including N2 fixation, nitrification, denitrification and ammonification. They decompose plant residues, soil organic matter and release inorganic nutrients that can then be taken up by plants.

Answer 2

Answer:

Micro organisms or nitrogen fixing bacteria play an important role in the nitrogen cyle.

Bacteria like Bacillus  vulgaris help in ammonification, that turn the fuel of dead organisms into ammonia .

Pseudomonas helps in denitrification by turning nitrates into nitrites and back to atmospheric nitrogen.

Nitrosomonas helps in nitrification. They turn nitrites into nitrates.