Question

Discuss the role of cyanobacteria increasing the fertility of the soil

Answer 1

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❏Cyanobacteria are ubiquitous components of biocrust communities and the first colonizers of terrestrial ecosystems.

❏They play multiple roles in the soil by fixing C and N and synthesizing exopolysaccharides, which increase soil fertility and water retention and improve soil structure and stability.

Answer 2

Explanation :

★ Blue green algae(Cyanobacteria) act as biofertilizer. Biofertilizers are introduced in the soil.

★ They helps in replenishing the nutrients in the soil which are then taken in by the plants .

★ They have the ability to fix the atmospheric nitrogen.

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