what is biological nitrogen fixers
Answers
Answer:
Biological nitrogen fixation (BNF) is the term used for a process in which nitrogen gas (N2) from the atmosphere is incorporated into the tissue of certain plants. Only a select group of plants is able to obtain N this way, with the help of soil microorganisms.
Answer:biological nitrogen fixers are those microorganisms which take the nitrogen directly from the atmosphere instead of taking from the ground that is soil they actually convert the nitrogen to a form they can use... It also helps us in keeping the soil enriched in nitrogen which very essential for plant growth so many farmers..might grow this so that the soil can get replenished with nitrogen again after growing the plants that use the nitrogen from the soil
Eg___Rhizobium and Frankia, or the free-living Azospirillum and Azotobacter
Explanation:Nitrogen Fixation by Free-Living Heterotrophs. Many heterotrophic bacteria live in the soil and fix significant levels of nitrogen without the direct interaction with other organisms. Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella