A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is
Azotobacter
Bacillus polymyxa
Clostridium
Azospirillum
What would happen if oxygen availability to activated sludge flocs is reduced ?
Definitions / Explanation : Biofertiliser
Some blue green algae can be used as biofertilizer as they are
Azotobacter and Bacillus polymyxa are
Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.