Azolla is used as biofertilizer as it has
Rhizobium
Cyanobacteria
Mycorrhiza
Large quantity of humus
It’s obvious.
Which one of the following is not used in organic farming?
Organic forming is the technique of raising crops through use of
The main sources of biofertilisers are
Definitions / Explanation : Biofertiliser
Azotobacter and Bacillus polymyxa are
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