Question

Biofertilizers include

• A. Nitrogen fixing bacteria
• B. Nitrogen fixing cyanobacteria
• C. Both bacteria and cyanobacteria
• D. Bacteria, cyanobacteria and mycorrhizal fungi

Answer 1

Answer: (D)

Bacteria, cyanobacteria and mycorrhizal fungi

The term biofertilizers or microbial inoculants may be used to include all organic resources (manure) for plant growth which are rendered in an available form for plant absorption through microorganisms or plant associations or interactions. Biofertilizers are of three types, nitrogen fixing bacteria, nitrogen fixing cyanobacteria and mycorrhiza.

So, the correct answer is option D.