Question

The common nitrogen fixer in paddy fields is
(a) Rhizobium (b) Azospirillum
(c) Oscillatoria (d) Frankia

Answer 1

Answer:

Rhizobium

Explanation:

It fixes the nitrogen by absorbing it from the atmosphere.

Answer 2

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.