nitrogen fixation

[/ˈnaɪtrədʒən fɪkˈseɪʃən/]
nounpl: nitrogen fixations
fixação de nitrogênio
1. The process by which atmospheric nitrogen (N₂) is converted into ammonia (NH₃) or other nitrogen compounds that can be used by plants and organisms
Nitrogen fixation is essential for agriculture because it replenishes soil nutrients naturally.
A fixação de nitrogênio é essencial para a agricultura porque repõe naturalmente os nutrientes do solo.
2. A biochemical process carried out by certain bacteria, particularly those in the genus Rhizobium, and some cyanobacteria
Legume crops benefit from nitrogen fixation performed by symbiotic bacteria in their root nodules.
As culturas de leguminosas se beneficiam da fixação de nitrogênio realizada por bactérias simbióticas em seus nódulos radiculares.
3. Industrial process using high temperature and pressure to produce ammonia for fertilizers
The Haber-Bosch process revolutionized agriculture through industrial nitrogen fixation.
O processo de Haber-Bosch revolucionou a agricultura através da fixação industrial de nitrogênio.
Nitrogen fixation is a critical concept in Brazilian agriculture, particularly given the country's extensive legume and soybean farming. The term is widely used in agronomic education and research. In the USA, nitrogen fixation is important in both agricultural and environmental science discussions, with particular emphasis on sustainable farming practices.
Synonyms / Sinônimos
nitrogen assimilationnitrogen conversionammonia synthesis
Antonyms / Antônimos
denitrificationnitrogen release

Regional Variations

General Brazilian
fixação de nitrogênio
Standard term used in scientific and agricultural contexts
Rio de Janeiro
fixação de nitrogênio
Same as general Brazilian Portuguese
São Paulo
fixação de nitrogênio
Same as general Brazilian Portuguese, commonly used in agricultural research
Portugal
fixação do nitrogénio
Uses 'nitrogénio' instead of 'nitrogênio'; terminology consistent with European Portuguese scientific usage

Related Words

nitrogenaseRhizobiumnodulationammonialegumessymbiosisdenitrificationnitrogen cycle

Related Idioms & Phrases

nitrogen-fixing bacteria
nitrogen-fixing capacity
nitrogen fixation rate
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