Vitousek, P. M. et al. Human alteration of the global nitrogen cycle: sources and consequences. Ecological Applications 7, 737–750 (1997).

Vitousek, P. M. et al. Human alteration of the global nitrogen cycle: sources and consequences. Ecological Applications 7, 737–750 (1997).

In agricultural systems, the nitrogen cycle is structurally open. Each time plants are harvested, the nitrogen contained in them is carried far away from the plot of soil where it came from.

These human activities convert nitrogen from inactive to reactive forms. “Before the Haber-Bosch process and fossil fuel combustion, specialized microbes in the soil could fix nitrogen into forms ...

The molecular mechanism of anaerobic ammonium oxidation has been unraveled. The anaerobic oxidation of ammonia (anammox) is an important pathway in the nitrogen cycle that was only discovered in ...

The nitrogen cycle — which has existed for billions of years — transforms non-biologically useful forms of nitrogen found in the atmosphere into various biologically useful forms that are needed by ...

The nitrogen cycle is the process by which the element is used and then fed back into the system. Nitrogen (N) makes up almost 80 per cent of our atmosphere and is essential for plants and animals.

The nitrogen cycle, minerals and eutrophication (CCEA) Part of Biology (Single Science) Biodiversity. Save to My Bitesize Save to My Bitesize Saving Saved Removing Remove from My Bitesize.

The Thaumarchaeota play a key role in the marine nitrogen cycle. They gain energy for growth by converting ammonia, which is the most reduced form of inorganic nitrogen, to a more oxidized form: ...

Originally published as “Repair the Nitrogen Cycle in Your Garden” in the April/May 2023 issue of Mother Earth News and regularly vetted for accuracy. Continue Reading. Suggested Video.