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प्रश्न
Inoculation of which one of the following free-living bacteria has been reported to increase the yield of rice?
विकल्प
Rhizobium
Azotobacter
Mycobacterium
Pseudomonas
MCQ
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उत्तर
Azotobacter
Explanation:
Azotobacter is a free-living nitrogen-fixing bacterium that has been reported to increase the yield of rice by enriching the soil with atmospheric nitrogen. It lives freely in the soil and fixes nitrogen, making it available to rice plants, thereby improving crop yield.
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