Biofertilizers include [J & K CET 2002]
A) Nitrogen fixing bacteria
B) Nitrogen fixing cyanobacteria
C) Mycorrhiza
D) All of these
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all of these
as they all help in nitrogen fixation
as they all help in nitrogen fixation
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Bio fertilizers only include nitrogen fixing bacteria from the above options becoz the other two consecutive options are for higher plants association which help higher plants to get Fixed Nitrogen.
So answer is A
So answer is A
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