Question : A biofertilizer is: – InterviewSolution

1.	Question : A biofertilizer is:
Answer» farmyard manure consisting of mixture of cattle dung and crop residues green manure in which a quick growing crop is CULTIVATED and ploughed under a cyanobacterium like Anabaena sp. LIVING in cavities of Azolla leaves symbiotic bacteria like Azotobacter which fix atmospheric nitrogen Answer :C

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