KnowraBiological nitrogen fixationLinked fromLinked fromThe 25 pages that link to Biological nitrogen fixation, each with the reason it gives.All 25Broader topic 2Related 15Narrower topic 6Compared with 2Nitrogen fertilizerCompared with: It supplies nitrogen through microbial activity rather than manufactured fertilizer.Plant nutritionCompared with: Plants cannot fix atmospheric nitrogen themselves, but symbioses with nitrogen-fixing microbes can supply usable nitrogen.