Which is correct
Legumes fix nitrogen through bacteria in their leaves ‘
Legumes fix nitrogen through bacteria in their roots
Legumes fix nitrogen independent of bacteria
Legumes do not fix nitrogen
Which is correct about nitrogen fixation by legumes. They fix nitrogen through
Give scientific reasons : The pressure on use of organic farming and biotic fertiliser has been increased.
Farmers have reported $50\%$ higher yield of rice by using biofertilizer
Azolla is used as biofertilizer as it has
The main sources of biofertilisers are