Question

what is the principle undelying the use of cyanobacteria in agricultural fields for crop improvement?

Answer 1

Cyanobacteria have the ability to fix atmospheric nitrogen. Their use in agricultural fields increases soil fertility and thus they are used as biofertilizer.
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Answer 2

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Cyanobacteria are autotrophic microbes found in aquatic and Terrestrial environment .Most of these fix atmospheric nitrogen .

example :- nostoc ,oscillatoria and anaebena.

In paddy fields cyanobacteria serve as an important biofertilizer as they enrich the nitrogen content in the soil. They also add organic matter to the soil. Thus increasing the fertility .

Thus the application of cyanobacteria helps in improving agricultural output .

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