Which one is a biofertilizer...

Which one is a biofertilizer

A

NPK mixture

B

Rhizobium in legume roots

C

Rhizobium in farmyard manure

D

Green manure

Text Solution

Verified by Experts

The correct Answer is:

B

All cyanophyceae member's are biofertilizers because they has fixation of `N_2` e.g. Nostoc, Rebulla, Rhizobia etc

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