Results 201 to 210 of about 2,662,632 (251)
Some of the next articles are maybe not open access.
1981
Nitrogen has a crucial role to play in primary productivity, and indeed is the plant nutrient required in greatest quantity. In the biosphere it undergoes what is essentially a cyclical eight-electron shuttle between the most oxidized form at valence +5 (NO 3 - ) and the most reduced form at valence -3 (NH3).
W. D. Grant, P. E. Long
openaire +1 more source
Nitrogen has a crucial role to play in primary productivity, and indeed is the plant nutrient required in greatest quantity. In the biosphere it undergoes what is essentially a cyclical eight-electron shuttle between the most oxidized form at valence +5 (NO 3 - ) and the most reduced form at valence -3 (NH3).
W. D. Grant, P. E. Long
openaire +1 more source
2006
Elemental nitrogen (N2) makes up 80% of the atmosphere (by volume) and represents the dominant form of atmospheric nitrogen gas. Despite its high atmospheric abundance, N2 is generally nonreactive, due to strong triple bonding between the N atoms, making much of this N2 pool unavailable to organisms.
+4 more sources
Elemental nitrogen (N2) makes up 80% of the atmosphere (by volume) and represents the dominant form of atmospheric nitrogen gas. Despite its high atmospheric abundance, N2 is generally nonreactive, due to strong triple bonding between the N atoms, making much of this N2 pool unavailable to organisms.
+4 more sources
Nitrogen Cycle Electrocatalysis
Chemical Reviews, 2009Victor, Rosca +3 more
openaire +2 more sources
Nitrous oxide emission in altered nitrogen cycle and implications for climate change
Environmental Pollution, 2022Wenshan Guo +2 more
exaly