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What is non-symbiotic N2 fixation? Give examples of some microorganism.

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What is non-symbiotic N2 fixation? Give examples of some microorganism.

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When atmospheric nitrogen fixation takes place by free living bacteria or cyanobacteria without showing any mutual relationship with any other species is called non-symbiotic nitrogen fixation. E.g. Azotobacter,Anabaena, Nostoc.

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