How do blue-green algae increase the fertilit | vedclass

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(C) Blue-green algae (Cyanobacteria) are autotrophic microbes that are widely distributed in aquatic and terrestrial environments. Many of these,such

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By adding organic matter

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(C) Blue-green algae (Cyanobacteria) are autotrophic microbes that are widely distributed in aquatic and terrestrial environments. Many of these,such as $Anabaena$ and $Nostoc$,have the ability to fix atmospheric nitrogen into organic forms,which is then utilized by plants. By adding nitrogenous compounds to the soil,they significantly enhance soil fertility and act as natural biofertilizers.

How do blue-green algae increase the fertility of the soil?

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