What are nitrates? Nitrogen gas makes up 78% of Earth’s atmosphere and is an essential element in amino acids and proteins. However, plants and animals cannot use nitrogen gas directly.

"Nitrogen Cycle: Key Ingredient In Climate Model Refines Global Predictions." ScienceDaily. ScienceDaily, 11 October 2009. <www.sciencedaily.com / releases / 2009 / 10 / 091009204032.htm>.

New Imaging Method Clarifies Nutrient Cycle Date: July 10, 2007 Source: University of Southern California Summary: Scientists have applied a nanoscale imaging method to a biological system ...

In the phosphorus cycle, phosphorus is circulated mainly through soil, rocks, water, and living organisms. Phosphorus is found organically in the form of the phosphate ion (PO43-).

This nitrogen cascade manifests in a variety of ways. Nitrogen oxides contribute to the production of ground-level ozone, or smog, which increases the risk of serious respiratory illness and ...

The major portion of the global nitrogen cycle occurs between vegetation and soil, only minor exchanges generally taking place with the atmosphere and the hydrosphere. Nitrogen conversions in soil are ...

Nitrogen fertilizers used in agriculture contribute significantly to global warming. A new breeding concept, specifically for wheat, could help reduce nitrogen fertilization. This holobiont principle ...

The fifth-most abundant gas in the universe, the most pervasive on earth, there is roughly three times more nitrogen in the air than oxygen. While it only constitutes a mere 3% of our body weight ...