Most famous nitrogen fixing bacterium/biofertilizer is
Nitrobacter
Nitrosomonas
Nitrococcus
Rhizobium
Mycorrhiza is helpful in
Azolla enriches rice fields with nitrogen due to its association with
Which one of the following is not used in organic farming?
The symbiotic association of fungi with plants is known as ____which is formed by many members of the fungal genus_____.
Why are blue green algae not popular as biofertilisers ?