Nitrogen Cycle

Definition

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms in the environment. It involves nitrogen fixation, nitrification, assimilation, ammonification, and denitrification.

Related terms

Nitrogen Fixation: This term refers to the conversion of atmospheric nitrogen into a form that can be used by plants and other organisms.

Nitrification:

Nitrification is the process where ammonia is converted into nitrites and then further oxidized into nitrates by bacteria.

Denitrification:

Denitrification is the process where nitrates are converted back into atmospheric nitrogen gas by bacteria.