Modern farmers can increase the yield of padd | vedclass

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Question

(C) The correct answer is $C$. $Azolla$ $pinnata$ is a small aquatic fern that has a symbiotic relationship with the nitrogen-fixing cyanobacterium $A

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Cyanobacteria in Azolla pinnata

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(C) The correct answer is $C$. $Azolla$ $pinnata$ is a small aquatic fern that has a symbiotic relationship with the nitrogen-fixing cyanobacterium $Anabaena$ $azollae$. This association allows the fern to fix atmospheric nitrogen,which significantly enriches the soil. When used as a biofertilizer in paddy (rice) fields,it can increase the crop yield by more than $50\%$ due to the enhanced nitrogen availability.

Modern farmers can increase the yield of paddy crops by more than $50\%$ through the use of:

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