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Nitrogen fertilizers are often made using the Haber-Bosch process ( invented about 1915 ) which uses natural gas ( CH < sub > 4 +)</ sub > for the hydrogen and nitrogen gas ( N < sub > 2 </ sub >) from the air at an elevated temperature and pressure in the presence of a catalyst to form ammonia ( NH < sub > 3 </ sub >) as the end product.
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Nitrogen and fertilizers
Nitrogen is an essential component in fertilizers used for plant crops.
Nitrogen and are
Nitrogen and oxygen are about it ''.
Nitrogen oxides start to form above and more nitrogen oxides are produced at higher temperatures.
Nitrogen sources are removed from the euphotic zone by the downward movement of the organic matter.
Nitrogen, phosphorus, and sulfur are also needed in relatively large quantities.
Nitrogen and phosphorus are most commonly the limiting factor in growth, and thus the most likely to trigger eutrophication when introduced artificially.
Nitrogen compounds are important phytoplankton nutrients.
Nitrogen and oxygen are not greenhouse gases because the absorption is forbidden by the lack of a molecular dipole moment.
Nitrogen, phosphorus, and potassium are mobile nutrients, while the others have varying degrees of mobility.
Generally, recreational diving depths are limited to a maximum of between 30 and 40 meters ( 100 and 130 feet ), beyond which a variety of safety issues ( Oxygen Toxicity, Nitrogen Narcosis to name but a few ) make it unsafe to dive using recreation diving equipment and practices, and specialized training and equipment for technical diving are needed.
Nitrogen and phosphorus atoms are also tetrahedral.
Nitrogen has been shown to be effective, although some young animals are rather resistant and it currently is not widely used.
Fungi which break down wood require a Nitrogen source since wood is primarily comprised solely of hemi-cellulose, cellulose, and ligin and lacks nitrogen, and these plants are heavy feeders with high nitrogen requirements typically.
Nitrogen compound emissions from internal combustion engines are a root cause of smog.
Nitrogen assimilation is a fundamental biological process that occurs in plants and algae that are incapable of independent nitrogen fixation.
For positive corona polarity, Nitrogen ions are the main charge carriers, whilst for negative polarity, Oxygen ions will be the main carriers and ozone production will be higher.
Nitrogen ratios are frequently linked to agricultural activities.
Nitrogen oxides are absorbed to form nitrosylsulfuric acid which is then returned to the Glover tower to reclaim the oxides of nitrogen.
Nitrogen oxides are produced by decomposition of niter in the presence of sulfuric acid or hydrolysis of nitrosylsulfuric acid:
Nitrogen oxides are absorbed and regenerated in the process, and thus serve as a catalyst for the overall reaction:
Nitrogen and phosphorus are key pollutants found in runoff, and they are applied to farmland in several ways:
* Nitrogen compound overload: Herbivores are equipped to deal with a normal level of potentially toxic non-protein nitrogen ( NPN ) compounds in their forage.
Nitrogen isotopes in bone collagen are ultimately derived from dietary protein, while carbon can be contributed by protein, carbohydrate, or fat in the diet.
Nitrogen and often
Nitrogen is often used as an inert gas in the chemical industry.
Nitrogen deficiency most often results in stunted growth, slow growth, and chlorosis.
* Nitrogen oxides emission ( often referred to as NOx )
Nitrogen and made
Nitrogen, in the form of air, has been used in flashtubes in home made dye lasers, but the nitrogen and oxygen present form chemical reactions with the electrodes, and themselves, causing premature wear and the need to adjust the pressure for each flash.
To reduce the natural environmental background the copper box is enclosed inside a multicomponent multi-tons passive shield made by copper, lead, polyethylene / paraffin, cadmium foil ; a plexiglas box encloses the whole shield and is also maintained in HP Nitrogen atmosphere.
Nitrogen and using
Nitrogen gas is an industrial gas produced by the fractional distillation of liquid air, or by mechanical means using gaseous air ( i. e., pressurized reverse osmosis membrane or Pressure swing adsorption ).
Nitrogen deficiency can be prevented in the short term by using grass mowings as a mulch, or foliar feeding with manure, and in the longer term by building up levels of organic matter in the soil.
HPNS can be reduced by using a small percentage of Nitrogen in the gas mixture.
Nitrogen isotope data has also been used to measure the amount of exchange of air between the stratosphere and troposphere using data from the greenhouse gas N < sub > 2 </ sub > O .< ref name =" boering_2004 ">
Nitrogen and process
Nitrogen fixation is a process by which nitrogen ( N < sub > 2 </ sub >) in the atmosphere is converted into ammonia ( NH < sub > 3 </ sub >).
* Nitrogen Catabolite Repression, a cellular process regulating synthesis of nitrogen metabolic proteins in yeast
* The process of making a molecule biologically active, for example Nitrogen fixation
The DIAMEX ( DIAMideEXtraction ) process has the advantage of avoiding the formation of organic waste which contains elements other than Carbon, Hydrogen, Nitrogen, and Oxygen.
* Nitrogen fixation, a process by which nitrogen is converted from its inert molecular form to a compound more readily available and useful to living organisms
Nitrogen oxides are treated either by modifications to the combustion process to prevent their formation, or by high temperature or catalytic reaction with ammonia or urea.
Nitrogen and about
Nitrogen is a common element in the universe, estimated at about seventh in total abundance in our galaxy and the Solar System.
Nitrogen was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish, and Joseph Priestley, who referred to it as burnt air or phlogisticated air.
Nitrogen gas is about 3 % lighter than air, insufficient for common use as a lifting gas.
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