Nitrogen is a critical limiting element for plant growth and production. It is a major component of chlorophyll, the most important pigment needed for photosynthesis, as well as amino acids ...

Converted into elemental nitrogen (N), this makes a total of 149 million kilograms of nitrogen ... These combustion processes take place predominantly in vehicles with internal combustion engines and ...

To get enough nitrogen, for example ... functions associated with different contents of these elements. For example, plant cell walls are nutrient (e.g., N and P)-poor and carbon-rich; it is ...

a critical micronutrient that helps plants metabolize nitrogen. “Sulfur deficiencies are becoming more common,” reports Farm Journal Field Agronomist Ken Ferrie. “It used to be one element ...

Nitrogen fertiliser is ecologically problematic The element nitrogen is an essential ... One of the most serious problems with the transfer to plants is that nitrogenase is extremely sensitive ...