Azotobacter and Bacillus polymyxa are

A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is Or Which one of the following micro-organisms is used as a bio fertilizer? (a) Azotobacter (b) Bacillus polymyxa (c) Clostridium (d) Azospirillum

A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is Or Which one of the following micro-organisms is used as a bio fertilizer? (a) Azotobacter (b) Bacillus polymyxa (c) Clostridium (d) Azospirillum

Azotobacter and Polymyxa are example of

Bacillus subtilis are

Bacillus subtilis are

What is Bacillus ?

Bacillus subtilis are

Azotobacter and Beijerinckia are examples of

Azotobacter and Beijerinckia are examples of :