Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most ...

In the nitrogen cycle, phytoplankton and other marine plants turn nitrate (NO 3) into organic nitrogen during photosynthesis. The organic nitrogen sinks into the deep ocean, where microbes "eat ...

Nitrogen gas makes up 78% of Earth’s atmosphere and is an essential component in amino acids and proteins. However, plants and animals cannot use nitrogen gas directly. Nitrates and other ...

which pays out large amounts in fertilizer subsidies. It should also decrease N 2 O gas emissions and nitrate leaching from agricultural land, creating a healthier global nitrogen cycle.

Issues of upscaling from farm plot and city to national and continental scales are addressed in detail with emphasis on opportunities for better management at local to global levels. The five key ...

N. Galloway , D. S. Ojima and J. M. Melillo 2. Paleoclimatic change of monsoonal China linked to global change Z. S. An and L. G. Thompson 3. Coupled biogeochemical cycles of carbon, nitrogen, ...