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Question : What are biofertilizers ? Give two examples.

Answer»

Solution :Biofertilizers are organisms that enrich the nutrient quality of the soil. The MAIN sources of biofertilizers are bacteria, FUNGI and cyanobacteria.
E.g.: (i) Azospirillum, RHIZOBIUM and Azotobacter can fix atmospheric nitrogen in the soil. (ii) BlueGreen Algae, Anabeana, Nostoc and etc are USED as BIOFERTILIZER.


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