Question:
Explain how cyanobacteria can be used as bio-fertilizer.
Explain how cyanobacteria can be used as bio-fertilizer.
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Cyanobacteria improve soil nitrogen content naturally, making them effective and eco-friendly bio-fertilizers, especially in paddy cultivation.
Updated On: Jun 14, 2025
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Solution and Explanation
Step 1: Cyanobacteria like \emph{Anabaena}, \emph{Nostoc}, and \emph{Oscillatoria} are free-living nitrogen-fixing bacteria found in aquatic and terrestrial habitats.
Step 2: These microbes fix atmospheric nitrogen into usable forms, enriching the soil. They are used in rice fields to enhance fertility without the use of chemical fertilizers.
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