Farmers have reported over 50% higher yields | vedclass

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(B) $Azolla pinnata$ is a small aquatic fern that has a symbiotic relationship with the nitrogen-fixing cyanobacterium $Anabaena azollae$. When used a

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Azolla pinnata

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(B) $Azolla pinnata$ is a small aquatic fern that has a symbiotic relationship with the nitrogen-fixing cyanobacterium $Anabaena azollae$. When used as a biofertilizer in rice fields,it provides a significant amount of nitrogen to the soil. Farmers have reported that the application of $Azolla$ can increase rice yields by over $50\%$ due to its nitrogen-fixing capabilities and its role as a green manure.

Farmers have reported over $50\%$ higher yields of rice by using which of the following biofertilizer?

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