The common nitrogen fixer in paddy fields is
(a) Rhizobium (b) Azospirillum
(c) Oscillatoria (d) Frankia
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Answer:
Rhizobium
Explanation:
It fixes the nitrogen by absorbing it from the atmosphere.
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The common nitrogen fixer in paddy fields is Azospirillum.
● There are certain nitrogen fixing bacteria which converts atmospheric nitrogen into ammonium compounds and make it available to the plants.
● Examples include Azotobacter, Frankia, Rhizobium, Azospirillum.
● Out of these, Azospirillum is widely used as nitrogen fixer organism in paddy fields. ... It promotes the plant growth.
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