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प्रश्न
What is the principle underlying the use of cyanobacteria in agricultural fields for crop improvement?
उत्तर
Cyanobacteria are capable of fixing nitrogen with the help of specialised cells called the heterocyst. They enrich soil fertility. Hence BGA’s are used in agricultural fields. E.g. Colonies of Nostoc and Anabaena grow in Paddy fields.
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