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Nitrogen fixation
Conversion of atmospheric nitrogen gas into forms useful to plants and other organisms by lightning, bacteria, and blue-green algae; it is part of the nitrogen cycle. (source: EPA) Background from Wikipedia Nitrogen fixation is the process by which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes (such as, notably, ammonia, nitrate and nitrogen dioxide) [1]. Nitrogen fixation is performed naturally by a number of different prokaryotes, including bacteria, and actinobacteria certain types of anaerobic bacteria. Microorganisms that fix nitrogen are called diazotrophs. Some higher plants, and some animals (termites), have formed associations with diazotrophs. Biological nitrogen fixation was discovered by the Dutch microbiologist Martinus Beijerinck. Nature.com (subscription),These organisms take nitrogen dissolved in water and convert it into ammonia, in a process known as nitrogen fixation. This new organic nitrogen is Initial Effects of Atmospheric CO2 Enrichment on Nitrogen Fixation ... - Sep 25, 2007 CO2 Science Magazine,...carbon availability to nodules and activity of carbon-metabolizing enzymes but does not enhance specific nitrogen fixation in pea. ENERGY-BRAZIL: Elephant Grass for Biomass - Oct 10, 2007 IPS,The conversion of energy intake into energy storage (the energy balance) of the plant can be improved by biological nitrogen fixation, in which bacteria Irish funding fertilises Malawian tree project - Oct 19, 2007 SciDev.net,Under the programme, farmers are being encouraged to plant particular shrubs with their crops to improve the soil through nitrogen fixation (see Malawi to Nobel Focus: Chemistry in 2D - Oct 18, 2007 Physical Review Focus,His research touched upon several real-world applications, including nitrogen fixation on iron grains for making fertilizer, ozone-depleting reactions on Dolled up humans share commonality with refined food - Sep 29, 2007 Sunday Observer,The Institute therefore is looking into the possibility of biological Nitrogen fixation. The atmospheric nitrogen which plants are unable to make use of Why not grow organic? - Oct 4, 2007 Atlantic Farm Focus,Transitioning to organic must be made on the principles of capitalizing on nature’s gifts (ie, soil microorganisms, pastures, nitrogen fixation, etc. Anti-GM crops group rejects farmer benefit claims - Aug 9, 2007 ABC Online,But the director of Gene Ethics, Bob Phelps, says pro-GM companies have spent 20 years trying to improve nitrogen fixation and it is unlikely to be achieved Does heavier rain mean a bigger sink? - Aug 9, 2007 Nature.com (subscription),In 1908, the German chemist Fritz Haber developed a method of nitrogen fixation that would allow global intensification of agriculture and eventually feed Irish wasp hammers Hawke’s Bay weevils - Aug 13, 2007 Scoop.co.nz,The weevil larvae attack clover underground, resulting in reduced nitrogen fixation and clover growth, especially in spring and early summer. Management of drought-stressed alfalfa - Aug 10, 2007 Hutchinson Leader,Nitrogen fixation and nodule formation is reduced but more nutrients accumulate in the roots compared to the foliage. In new seedings, root growth is Blankenship named Markey professor - Aug 9, 2007 Washington University Record,The emergence of photosynthesis and other metabolic processes, such as nitrogen fixation, had profound effects on the evolution of advanced life on Earth. Midwest news and notes - Jul 31, 2007 Agri News,Nitrogen fixation and nodule formation is reduced, but more nutrients accumulate in the roots compared to the foliage. Summer provides a good window of Scientists aim to improve wastewater - Apr 1, 2007 Scoop.co.nz,..."By studying whole communities of bacteria in biological wastewater treatment and pinpointing those responsible for nitrogen fixation we can manipulate Understanding soil nitrogen - Mar 16, 2007 High Plains Journal,...--Nitrogen fixation is a biological process in which elemental N is converted into organic N compounds through microorganisms in the soil. What’s in your soil? Good soil is the hallmark of a beautiful garden - Mar 28, 2007 Sooke News Mirror,Symbiotic relationships between rhizobium bacteria and plants within the soil play an extremely important role in regards to nitrogen fixation within the Times New Roman - Mar 24, 2007 San Francisco Chronicle,...the discovery of the nitrogen-fixation process, which allows us to literally fix nitrogen out of thin air and to transport it where someone needs it. Termites' enzyme anomaly - Mar 27, 2007 Chemistry World,So the bacterial community of the termite hindgut contains bacteria that fix nitrogen from the atmosphere, and nitrogen fixation is energetically expensive. Cattle Feeding: Is Sainfoin Right For You - Mar 27, 2007 CattleNetwork.com,Nitrogen fixation also is a problem for sainfoin, even when properly inoculated with the right kind of bacteria. As a result, nitrogen fertilizer often is Phosphorus placement for forages key to success - Mar 31, 2007 Bismarck Farm & Ranch Guide,...carbohydrate production, protein synthesis, root development and early growth, winter hardiness, and nitrogen fixation in the case of legumes. Science shows ethanol good for America - Mar 20, 2007 Checkbiotech.org (press release),...requirements for growing corn, and it is well known that just around the corner is corn seed with nitrogen fixation, much like alfalfa and soybeans. Facts of the Matter - Mar 18, 2007 Honolulu Star-Bulletin,An astonishing variety of different bacteria are responsible for the decay of organic material and nitrogen fixation in soil, performing the essential role Frost-seeding legumes has many benefits - Feb 15, 2007 The Advocate,Nitrogen fixation: Legumes get their nitrogen from symbiotic bacteria that live in "knots" (nodules) on their roots. These bacteria are added when the Scouting for nutrient deficiencies; what to look for - Mar 4, 2007 Bismarck Farm & Ranch Guide,For example, alfalfa rarely shows phosphorus deficiency symptoms, although it responds vigorously to adequate fertilization and nitrogen fixation is Ethanol: A Few Myths Debunked - Mar 8, 2007 Seeking Alpha,In five or so years we should start to see corn crops with a nitrogen fixation gene, materially reducing the fertilizer requirements and the energy UQ full of bright American scholars - Feb 14, 2007 UQ News,...into the community of scientists who have been leaders in the international Biological Nitrogen Fixation (BNF) research community since the 1950s. Pulse crops provide nitrogen benefits, value-added source of ... - 21 Dec 2006 The Prairie Star,...“You need to provide phosphorus and potassium for the legumes because they are needed for nitrogen fixation,� he added. “You also need to inoculate the seed Nitrogen Fixation at 92°C by a Hydrothermal Vent Archaeon - Dec 14, 2006 Science Magazine (subscription)This increase in the temperature limit of nitrogen fixation could reveal a broader range of conditions for life in the subseafloor biosphere and other Hotly Fixated On Nitrogen - Dec 15, 2006 Chemical & Engineering NewsInstead they require that N 2 be converted into useful building blocks such as NH 3 in a process called nitrogen fixation. But researchers had observed this Microbe fixes nitrogen at a blistering 92 C - Dec 18, 2006 innovations report,Scientists have speculated since 1981 that nitrogen fixation was occurring at hydrothermal vents because vent animals had completely different nitrogen Comets as Toolkits for Jump-starting Life - Dec 19, 2006 HappyNews.com,Nitrogen fixation is the conversion of the very stable nitrogen (N2) gas in our atmosphere to a biologically usable form, like an amine or nitrate -- the Effects of Elevated CO2 on N2-Fixing Acacia Seedlings Starved for ... - Dec 12, 2006 CO2 Science Magazine,Likewise they determined that in going from the high P to low P substrate treatment, plant symbiotic nitrogen fixation in the plants growing in ambient air New soybean pulls nitrogen from soil, not air - Dec 12, 2006 Agriculture OnlineThey are with the ARS Soybean and Nitrogen Fixation Research Unit in Raleigh. Today's commercial nodulating soybean varieties forge a give-and-take Keys for operating a profitable forage program - Dec 20, 2006 Baxter Bulletin,Use legumes whenever possible — Legumes offer important advantages, including improved forage quality and biological nitrogen fixation, whether grown alone Phosphorus fertilizer shown to benefit crops - Dec 16, 2006 Billings Gazette,...also require minimal nitrogen fertilizer due to their ability to fix atmospheric nitrogen. However, phosphorus is necessary for nitrogen fixation to occur. Comets as Toolkits for Jump-Starting Life - Dec 15, 2006 NewsBlaze,Nitrogen fixation is the conversion of the very stable nitrogen (N2) gas in our atmosphere to a biologically usable form, like an amine or nitrate - the Factors affecting kernel yield in maize - Dec 8, 2006 innovations report,All of the nitrogen in a plant, whether derived initially from nitrate, nitrogen fixation, or ammonium ions, is converted to ammonia, which is rapidly Phosphorus fertilizer can increase pea and lentil yield on many ... - Dec 15, 2006 Montana State University,However, phosphorus is necessary for nitrogen fixation to occur. Jones said some Montana soils that have been fertilized with phosphorus and cropped for at Weevil biocontrol expanding - Dec 13, 2006 Scoop.co.nz (press release),White clover is crucial to New Zealand farms and is estimated to contribute more than $3 billion annually to the economy through nitrogen fixation and feed closer look at unseen world - Nov 30, 2006 Kentucky.com,..."Nitrogen fixation helped fertilize the planet," Zehr said. "The production and consumption of CO2 is driven by microbes." CO2, carbon dioxide, is a Potential Provosts - Nov 29, 2006 smudailycampus.com,Resources at the University of California, Berkeley. Another engineer, he is an expert in biological nitrogen fixation and microbial carbon metabolism. Sequencing The DNA Of Six Photosynthetic Bacteria To Make Biofuel ... - Oct 11, 2006 Medical News Today (press release),...of genes and proteins that governs the structure and function of membranes and their components responsible for photosynthesis and nitrogen fixation in two ... Climate change, challenge to rice cultivation - Oct 10, 2006 Hindu,...and enriched carbon dioxide may alter competition between rice and major weeds and the contribution of other organisms to nitrogen fixation in rice fields. ... Climate changes occurred during Dinosaurs’ era too - Sep 25, 2006 South Asian Women's Forum,On analyzing the carbon and nitrogen content of the samples, they found evidences of changes in carbon cycling and in nitrogen fixation by ocean biological ... Dinosaurs' Climate Shifted Too - Sep 24, 2006 PhysOrg.com,By analyzing the carbon and nitrogen content of the samples, the geochemists found evidence for changes in carbon cycling and in nitrogen fixation by ocean ... Instant Daily - Sep 28, 2006 UConn Daily Campus (subscription),Union? Just throwing it out there. The night before my microbiology exam, I woke up from a dream about nitrogen fixation. Actually ... News index | RSS | News Feed Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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