Nitrogen Cycle Flashcards
1
Q
What is N Fixation
A
N2 gas fixed to an available form. Converted to NH3-
Blue green algae, clostridium, or rhizobium
2
Q
What is precipitation?
A
air - 78%N, rain contains N
3
Q
What is ammonification?
A
N is present in the soil but in a complex form/tied to organic matter and compounds (chemical)
4
Q
What is denitrification?
A
Denitrification is the process by which nitrates (NO₃⁻) are reduced to produce nitrogen gas (N₂), which is then released into the atmosphere. This anaerobic process is carried out by bacteria such as Pseudomonas and Clostridium. It typically occurs in waterlogged soils or aquatic environments where oxygen is limited.
5
Q
Nitrification
A
6
Q
Denitrification
A
