A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is

  • A

    Azotobacter

  • B

    Bacillus polymyxa

  • C

    Clostridium

  • D

    Azospirillum

Similar Questions

What would happen if oxygen availability to activated sludge flocs is reduced ?

  • [AIIMS 2016]

Definitions / Explanation : Biofertiliser

Some blue green algae can be used as biofertilizer as they are

Azotobacter and Bacillus polymyxa are

  • [AIPMT 1996]

Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.