The main sources of biofertilisers are
Bacteria
Cyanobacteria
Fungi
All of these
Relation between bacteria and legume having nodulated roots is that of
The biofertilizer present in the roots of legumes is
The symbiotic association of fungi with plants is known as ____which is formed by many members of the fungal genus_____.
Agricultural chemicals include
Farmers have reported $50\%$ higher yield of rice by using biofertilizer