An organism used as a biofertilizer for raising soyabean crop is
Azotobacter
Azospirillum
Rhizobium
Nostoc.
Which is correct
How do biofertilisers enrich the fertility of the soil?
Mycorrhiza represents
Which of the following is not a symbiotic nitrogen fixing bacterium?
Which of the following serve as biofertiliser in paddy fields?