Question

Name the microorganisms which can fix atmospheric nitrogen in the soil. Answer should be handwritten.​

Answer 1

Answer:The microorganism which can fix the atmospheric nitrogen in the soil is Bacteria and certain blue-green algae (Anabaena, Nostoc etc) and fungi.

Explanation: Nitrogen fixation is the process in which the nitrogen in the atmosphere i.e N2is converted into ammonia in the soil.

N2 can be fixed in the soil by bacteria, cyanobacteria(Blue-green algae), and fungi.

Bacteria:- Free-living i.e Azotobacter, Azospirillum, Beizerinckia etc.

Symbiotic i.e Rhizobium, Frankia etc

Fungi:- Mycorrhiza

Cyanobacteria:- Anabena, Nostoc, Aulosira etc.