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Name the micro-organisms which help in biological fixation of nitrogen. How? |
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Answer» Two different types of micro-organisms can bring about biological nitrogen fixation. 1. Root-nodules of leguminous plants contain the micro-organism rhizobium. These microorganisms absorb atmospheric nitrogen and convert if into its nitrate, a compound. 2. Micro-organisms like azotobacter are’present in soil. They also convert atmospheric nitrogen into nitrates. |
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