What are the shortcomings of biological nitrogen fixation

The biggest drawback of biological nitrogen fixation is the extreme sensitivity of the nitrogen-fixing enzyme system to oxygen and chemosynthetic nitrogen in the environment. Biological nitrogen fixation refers to nitrogen-fixing microorganisms to reduce atmospheric nitrogen to ammonia, nitrogen-fixing organisms belong to the individual tiny prokaryotic organisms, nitrogen-fixing organisms are also called nitrogen-fixing microorganisms. Nitrogen is abundant in nature, and nearly eighty percent of the gas in the atmosphere is nitrogen. Only bacteria and blue-green algae can fix nitrogen in the air.