Nitrogen fixation is a process in which nitrogen (N 2) in the atmosphere is converted into ammonium (NH 4 +) or nitrogen dioxide (NO 2), for example. 
Nitrogen fixation is the process of nitrogen gas from the airbeing turned into a compound in the soil by bacteria that live inthe root nodules of.
Nitrogen fixation is the process by which nitrogen is taken from its relatively inert molecular form (N 2) in the atmosphere and converted into nitrogen compounds ...
Nitrogen is the most important, limiting element for plant production. Biological nitrogen fixation is the only natural means to convert this essential element to a ...
nitrogen fixation n. 1. The conversion of atmospheric nitrogen into compounds, such as ammonia, by natural agencies or various industrial processes. 2. The conversion ...
Nitrogen fixation, any natural or industrial process that causes free nitrogen (N 2), which is a relatively inert gas plentiful in air, to combine chemically with ...
To illustrate the importance of biological nitrogen fixation, the image below shows part of the Lower Sonoran desert in Arizona.
Authors: Extension Agronomists, Department of Extension Plant Sciences, New Mexico State University. (Print friendly PDF) Biological Nitrogen Fixation
nitrogen fixation The process by which free nitrogen from the air is combined with other elements to form inorganic compounds, such as ammonium ions, which can then ...
1: the industrial conversion of free nitrogen into combined forms useful especially as starting materials for fertilizers or explosives 2: the metabolic assimilation ...