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| Terms for subject Environment (24829 entries) |
| nitrification | Nitrifizierung | |
| nitrification | Salpeterbildung | |
| nitrification (The process by which ammonia compounds, including man-made fertilizer and the humus provided by organic matter or plant and animal origin, are converted into nitrites and then nitrates, which are then absorbed as a nutrient by crops. Excess nitrate can be leached into surface waters and groundwaters, causing pollution. Excess nitrate may also be converted by microbes back into gaseous nitrogen, which is an important greenhouse gas, and released back into the atmosphere. The ultimate source of nitrogen in the ecosystem is the molecular nitrogen in the atmosphere. To a very limited extent, some dissolves in water. However, none is found in rock) | Nitrifikation | |
| nitrifying zone | nitrierender Bereich | |
| nitrite (A salt or ester of nitric acid, included in compounds such as potassium nitrite, sodium nitrite and butyl nitrite) | Nitrit | |
| nitro compound | Stickstoffverbindung | |
| nitro compound (Any one of a class of usually organic compounds that contain the monovalent group, -NO2 (nitro group or radical) linked to a carbon atom) | Stickstoffverbindung | |
| nitroarene | Stickstoffaren | |
| nitrogen (An essential nutrient in the food supply of plants and the diets of animals. Animals obtain it in nitrogen-containing compounds, particularly amino acids. Although the atmosphere is nearly 80% gaseous nitrogen, very few organisms have the ability to use it in this form. The higher plants normally obtain it from the soil after micro-organisms have converted the nitrogen into ammonia or nitrates, which they can then absorb) | Stickstoff | |
| nitrogen compound | Stickstoffverbindung | |
| nitrogen cycle (The complex set of processes by which crops acquire the large amount of nitrogen they need to make proteins, nucleic acids and other biochemicals of which they are composed, and how the nitrogen returns to the atmosphere) | Stickstoffkreislauf | |
| nitrogen dioxide (A reddish-brown gas; it exists in varying degrees of concentration in equilibrium with other nitrogen oxides; used to produce nitric acid, NO2) | Stickstoffdioxid | |
| nitrogen dioxide sensor | NO2-Sensor | |
| nitrogen fertiliser | Stickstoffdünger | |
| nitrogen fixation | Stickstoffbindung | |
| nitrogen fixation | Stickstoffixierung | |
| nitrogen fixation (Assimilation of atmospheric nitrogen by a variety of microorganisms which live freely in soil. Once the nitrogen has been captured by one of the microorganisms, there are many different routes by which it is handled. Some is retained in the soil as decomposing plant matter, waiting to be released and taken up by new crops as a nitrate. That nitrate is produced by nitrifying bacteria living in the soil that thrive on ammonia, which is produced by decaying plant and animal material. In processing nitrogen the nitrifying bacteria produce nitrate that can be absorbed by the roots of plants) | Stickstoffixierung | |
| nitrogen fixing | Stickstoffixierung | |
| nitrogen fixing | Stickstoffbindung | |
| nitrogen leaching | Stickstoffauswaschung |