News tagged with nitrogen
A genetic alternative to fertilizer
Several studies have shown that a lack of nitrogen in soils adversely affects crop yields. The modern use of nitrogen fertilizers has improved yields to meet expanding global food demand, but in some cases ...
Jun 01, 2012 |
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Is it ripe? Carbon nanotube-based ethylene sensor establishes fruit ripeness
(Phys.org) -- The term ethylene (ethene) generally brings to mind polyethylene plastics, not fruit. However, ethylene is more than just a feedstock for chemical industry, it is also the smallest plant hormone, ...
Chemistry / Analytical Chemistry
May 19, 2012 |
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Legume lessons: Reducing fertilizer use through beneficial microbe reactions
Janine Sherrier, professor in the Department of Plant and Soil Sciences at the University of Delaware, is part of a team that has been awarded $6.8 million from the National Science Foundation (NSF) to study ...
May 10, 2012 |
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Carnivorous plants rely on the services and wastes of a symbiotic ant for nutrition
In a mutualistic relationship between an ant species and a carnivorous plant, the ants contribute to both prey capture and prey digestion of their host-plant and provide significant amounts of nutrients derived from their ...
May 09, 2012 |
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DC3: Chemistry of thunderstorms
(Phys.org) -- NASA researchers are about to fly off on a campaign that will take them into the heart of thunderstorm country.
Space & Earth / Earth Sciences
May 09, 2012 |
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Researchers discover new research use for plaque
While we may brush and floss tirelessly and our dentists may regularly scrape and pick at our teeth to minimize the formation of plaque known as tartar or dental calculus, anthropologists may be rejoicing ...
Other Sciences / Archaeology & Fossils
May 02, 2012 |
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Modern hybrid corn makes better use of nitrogen, study shows
(Phys.org) -- Today's hybrid corn varieties more efficiently use nitrogen to create more grain, according to 72 years of public-sector research data reviewed by Purdue University researchers.
Apr 30, 2012 |
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London 2012 Olympics: New technology will be used to measure impact of extra traffic
University of Leicester researchers are set to use new technology they have developed to monitor the impact of increased traffic on pollution levels in London during the Olympics.
Apr 30, 2012 |
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Spring nitrogen fertilizing for optimal wheat production
With longer and warmer days, wheat seeding and fertilizing has begun across the state. Using the right fertilizer source, rate, timing and placement is important for optimal production. Montana State University Extension ...
Apr 24, 2012 |
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Researchers develop method to fingerprint air pollution
A team of researchers from the University of Pittsburgh and the Electric Power Research Institute (EPRI) collected emissions samples from several power plant stacks in the United States and developed a unique method for detecting ...
Apr 20, 2012 |
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Diesel technologies drastically cut emissions under real-world conditions
New research from North Carolina State University shows that federal requirements governing diesel engines of new tractor trailer trucks have resulted in major cuts in emissions of particulate matter (PM) and nitrogen oxides ...
Apr 16, 2012 |
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Drastic changes needed to curb N2O, most potent greenhouse gas: study
Meat consumption in the developed world needs to be cut by 50 per cent per person by 2050 if we are to meet the most aggressive strategy, set out by the Intergovernmental Panel on Climate Change (IPCC), to reduce one of the ...
Apr 12, 2012 |
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Climate change helps then quickly stunts growth, decade-long study shows
(Phys.org) -- Global warming may initially make the grass greener, but not for long, according to new research conducted at Northern Arizona University.
Apr 10, 2012 |
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A glow in the Martian night throws light on atmospheric circulation
(PhysOrg.com) -- A faint, infrared glow above the winter poles of Mars is giving new insights into seasonal changes in the planet's atmospheric circulation. The tell-tale night emission was first detected ...
Space & Earth / Space Exploration
Apr 04, 2012 |
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Magnetic cloak: Physicists create device invisible to magnetic fields
Autonomous University of Barcelona researchers, in collaboration with an experimental group from the Academy of Sciences of Slovakia, have created a cylinder which hides contents and makes them invisible to ...
Mar 22, 2012 |
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Nitrogen
Nitrogen (pronounced /ˈnaɪtrədʒɨn/) is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.
Many industrially important compounds, such as ammonia, nitric acid, organic nitrates (propellants and explosives), and cyanides, contain nitrogen. The extremely strong bond in elemental nitrogen dominates nitrogen chemistry, causing difficulty for both organisms and industry in converting the N2 into useful compounds, and releasing large amounts of energy when these compounds burn or decay back into nitrogen gas.
The element nitrogen was discovered by Daniel Rutherford, a Scottish physician, in 1772. Nitrogen occurs in all living organisms. It is a constituent element of amino acids and thus of proteins, and of nucleic acids (DNA and RNA). It resides in the chemical structure of almost all neurotransmitters, and is a defining component of alkaloids, biological molecules produced by many organisms.
For more information about Nitrogen, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
