Source of nitrogen. Medical search. Frequent questions

Synonyms for nitrogen dioxide (NO 2 ) include dinitrogen tetroxide, nitrogen peroxide, nitrogen tetroxide, and NTO. (cdc.gov)
On contact with moisture, nitrogen dioxide forms a mixture of nitric and nitrous acids. (cdc.gov)
The mixture includes nitric oxide (NO), nitrogen dioxide (NO 2 ), nitrogen trioxide (N 2 O 3 ), nitrogen tetroxide (N 2 O 4 ), and nitrogen pentoxide (N 2 O 5 ). (cdc.gov)
Nitrogen dioxide is a colorless to brown liquid at room temperature and a reddish-brown gas above 70°F poorly soluble in water. (cdc.gov)
Nitric oxide is rapidly oxidized in air at high concentrations to form nitrogen dioxide. (cdc.gov)
Nitrogen dioxide is heavier than air, such that exposure in poorly ventilated, enclosed, or low-lying areas can result in asphyxiation. (cdc.gov)
In addition, they may be exposed to higher levels of nitrogen dioxide than adults in the same location because of their short stature and the higher levels of nitrogen dioxide found nearer to the ground. (cdc.gov)
Both nitrogen dioxide and nitric oxide are gases at room temperature. (cdc.gov)
However, nitrogen dioxide exists as a liquid below 21°C and, if ingested, will cause gastrointestinal irritation or burns. (cdc.gov)
There are other molecules in the atmosphere that have nitrogen atoms in them too, such as nitric oxide (NO) and nitrogen dioxide (NO 2 ). (windows2universe.org)
Reducing the area and amount of critical load exceedance continues to be a driver of Government policy on reducing emissions of acidic and nitrogen-containing air pollutants (sulphur dioxide, nitrogen oxides and ammonia). (data.gov.uk)
Acute effects of nitrogen dioxide after accidental release. (cdc.gov)
Ambient air pollution exposures were assessed based on maternal residential addresses using monthly averages of particulate matter ≤ 2.5 μm (PM 2.5 ), PM ≤ 10 μm (PM 10 ), nitrogen dioxide, and ozone from Environmental Protection Agency (EPA) monitoring stations. (medscape.com)
Positive associations were observed between PPD ozone (adjusted odds ration [aOR], 1.09), PM 10 (aOR, 1.02), and PM 2.5 (aOR, 1.02), with no statistically significant association with nitrogen dioxide. (medscape.com)
Nitrogen dioxide (NO 2 ) forms nitric oxide, causing vasodilation and an apparent volume depletion. (medscape.com)
High-dose corticosteroids are suggested in the treatment of pulmonary manifestations, but data on their prophylactic use after nitrogen dioxide (NO 2 ) exposure is anecdotal. (medscape.com)
Working environments should be evaluated for elevated nitrogen dioxide (NO 2 ) levels and proper ventilation and protective gear, such as SCBA, should be used. (medscape.com)
Pollutants with the strongest evidence for public health concern are fine particulate matter1 and gases (mainly carbon monoxide, ozone, nitrogen oxides, sulfur dioxide and volatile organic compounds). (who.int)

Synonyms for mixtures of nitrogen oxides include nitrogen fumes and nitrous fumes. (cdc.gov)
Persons whose clothing is contaminated with liquid nitrogen oxides can secondarily contaminate others by direct contact or through off-gassing vapors. (cdc.gov)
The primary route of exposure to nitrogen oxides is by inhalation, but exposure by any route can cause systemic effects. (cdc.gov)
Nitrogen oxides represent a mixture of gases designated by the formula NO x . (cdc.gov)
The toxicity of nitrous oxide (N 2 O) or laughing gas, which is used as an anesthetic, is different from that of the other nitrogen oxides and is not discussed in this protocol. (cdc.gov)
Nitrogen oxides (NO 2 , N 2 O 4 , N 2 O 3 and N2O5) are irritating to the upper respiratory tract and lungs even at low concentrations. (cdc.gov)
Children exposed to the same levels of nitrogen oxides as adults may receive larger doses because they have greater lung surface area:body weight ratios and increased minute volumes:weight ratios. (cdc.gov)
Nitrogen oxides form naturally during the oxidation of nitrogen-containing compounds such as coal, diesel fuel, and silage. (cdc.gov)
Nitrogen oxides are also formed during arc welding, electroplating, engraving, dynamite blasting, as components of rocket fuel, and nitration reactions such as in the production of nitro-explosives, including gun-cotton, dynamite and TNT. (cdc.gov)
Trace metal impurities most likely cause nitrogen oxides to form in nitric acid and its solutions. (cdc.gov)
Nitrogen oxides are intermediates in the production of lacquers, dyes, and other chemicals and are important components of photo-oxidant smog. (cdc.gov)

growth on ammonium and leucine as nitrogen sources and glucose as a carbon source was examined. (ejbiotechnology.info)
A clear preference of G. candidum for ammonium over leucine as a nitrogen source was shown. (ejbiotechnology.info)
Indeed, amino acids contain excess nitrogen in relation to their carbon content for fungi, so ammonium is released during their metabolization as C and N sources ( Deacon, 1997 ). (ejbiotechnology.info)
Nitrogen pentahydride, also known as ammonium hydride is a hypothetical compound with the chemical formula NH5. (wikipedia.org)
Another predicted structure of nitrogen pentahydride is an ionic compound, make up of an ammonium ion and a hydride ion (NH4+H−). Until now, no one has synthesized this substance, or proved its existence, and related experiments have not directly observed nitrogen pentahydride. (wikipedia.org)
An experimental attempted to do a displacement reaction between ammonium trifluoroacetate and lithium hydride in the molten state, in order to study the possibility of the existence of nitrogen pentahydride: CF3COONH4 + LiH → CF3COOLi + [NH4H] In the reaction between ammonium trifluoroacetate and lithium deuteride, the product ammonia contains 85% of ordinary ammonia and 15% of monodeuterated ammonia. (wikipedia.org)
Experiments with deuterium still get the same results: [NH4H] → NH3 + H2 Several papers have conducted theoretical calculations on nitrogen pentahydride, and believe that nitrogen pentahydride is unlikely to form ionic crystals of hydride and ammonium ions. (wikipedia.org)
They found an astonishingly good match with ammonium salts, which contain nitrogen and hydrogen. (newscientist.com)
Additionally, it is beneficial to use a nitrogen source, such as UAN, that provides some ammonium or nitrate in that first application so that when the wheat crop breaks dormancy, nitrogen is immediately available for the plants to take up. (farms.com)
Supplemental nitrogen sources, such as ammonium chloride, ammonium sulfate, and urea, are commonly used in hematology laboratories to aid in Red Blood Cell (RBC) and White Blood Cell (WBC) analysis. (primescholars.com)
Ammonium chloride is widely employed as a supplemental nitrogen source in hematology. (primescholars.com)
Ammonium sulfate is another nitrogen source used in hematology to facilitate WBC analysis. (primescholars.com)
Ammonium chloride, ammonium sulfate, and urea provide the necessary nitrogen for efficient cell lysis, differentiation, and accurate cell counting. (primescholars.com)
OH production was strongly induced when P. involutus switched from ammonium to protein as the main N source. (lu.se)

A blood urea nitrogen (BUN) test measures the amount of urea in a blood sample. (testing.com)
How can I get a blood urea nitrogen test? (testing.com)
A common test for urea nitrogen is the blood urea nitrogen test , better known as BUN. (healthline.com)
BUN (blood urea nitrogen) and creatinine , waste products removed from your blood by your kidneys. (medlineplus.gov)

Nitrogen fertilisers are produced from ammonia made in the Haber-Bosch process where nitrogen gas and hydrogen is reacted. (slu.se)
They are produced commercially, usually as the first step in the production of nitric acid, either by the direct oxidation of atmospheric nitrogen in the electric arc (Birkeland-Eyder Process) or by the catalytic oxidation of anhydrous ammonia (Oswald Process). (cdc.gov)
delays the conversion of ammonia-form nitrogen (anhydrous ammonia, urea and the urea fraction of UAN solution) to the nitrate form which is vulnerable to leaching and denitrification. (gov.mb.ca)
The results showed that the dominant water quality parameters affecting estuarine water quality were salinity, total organic matter, nitrogen content, either in the form of ammonia, nitrate, or nitrite, and phosphorus content, especially phosphate. (who.int)

Synonyms for nitric oxide (NO) include mononitrogen monoxide and nitrogen monoxide. (cdc.gov)

Many blue-green algae responsible for algal blooms can fix atmospheric nitrogen dissolved in the water, and therefore water stewards should focus their efforts on removing phosphorus from lakes to combat algal blooms. (sciencedaily.com)
A number of algal species can make up for nitrogen deficits by fixing atmospheric nitrogen that is dissolved in the water. (sciencedaily.com)
The cycle of natural processes through which atmospheric nitrogen is converted by nitrogen fixation and nitrification into compounds used by plants and animals in the formation of proteins and is eventually returned by decay and denitrification to its original state. (yourdictionary.com)

It is also referred to as urea nitrogen and is filtered out of the blood by the kidneys. (testing.com)
As the test name indicates, a BUN test measures urea nitrogen in the blood. (testing.com)
Urea, often called urea nitrogen, is a waste product produced due to the breakdown of proteins in the body. (testing.com)
What is the urine urea nitrogen test? (healthline.com)
The urine urea nitrogen test determines how much urea is in the urine to assess the amount of protein breakdown. (healthline.com)
In addition, your urea nitrogen levels may rise if you're going through heart failure or dehydration. (healthline.com)
This article refers to the urine urea nitrogen test, which is performed using a urine sample. (healthline.com)
The urine urea nitrogen test involves analyzing urine samples that you collect during a specified 24-hour period. (healthline.com)

N Nitrogen: Compounds with Noble Gases and Hydrogen. (wikipedia.org)
1985). N-fixation (incorporation of atmospheric N2 to form nitrogenous organic compounds) occurring in the root-zone may also contribute additional dissolved inorganic nitrogen (DIN) to this pool (Pollard et al. (ozcoasts.org.au)
These compounds provide additional nitrogen to support the growth and differentiation of blood cells during sample preparation and testing. (primescholars.com)

Quantifying human impacts on the nitrogen (N) cycle and investigating natural ecosystem N cycling depend on the magnitude of inputs from natural biological nitrogen fixation (BNF). (usgs.gov)
This is according to a recently published article in Springer's Ecosystems journal, Biological Nitrogen Fixation Prevents the Response of a Eutrophic Lake to Reduced Loading of Nitrogen: Evidence from a 46-Year Whole-Lake Experiment. (sciencedaily.com)
Nitrogen Fixation by Free-Living Bacteria - explains good results despite assumed N deficit of wood? (permies.com)

If you are dealing with a field that was planted late and did not tiller before going into winter, split nitrogen applications should be considered to stimulate tillering while minimizing nitrogen losses. (farms.com)

One factor that significantly impacts hematological analysis is the availability and utilization of supplemental nitrogen sources. (primescholars.com)
Hematology laboratories must carefully follow standardized protocols and quality control procedures to ensure the optimal utilization of these nitrogen sources. (primescholars.com)

HN-3 is one of three nitrogen mustard blister agents (vesicants). (cdc.gov)
However, exposure to nitrogen mustards may be more immediately toxic than exposure to sulfur mustard. (cdc.gov)
Exposure to nitrogen mustard damages the eyes, skin, and respiratory tract and suppresses the immune system. (cdc.gov)
Nitrogen mustard HN-3 is odorless when pure. (cdc.gov)

Nitric acid has nitrogen, oxygen, and hydrogen atoms in it. (windows2universe.org)
Its nitrogen atom and hydrogen atoms are covalently bounded, and its symmetry group is D3h. (wikipedia.org)
It may also be similar to nitrogen pentafluoride, forming a three-center two-electron bond similar to carbonium ions, or those five hydrogen atoms are arranged in a triangular bipyramid structure around the nitrogen atom. (wikipedia.org)

However, forty years ago, researchers began reducing the amount of nitrogen they were adding to the lake, and from 1990-2013, they cut artificial nitrogen loading to zero. (sciencedaily.com)
The amount of nitrogen that should be applied to your wheat crop can vary depending on crop rotation, history of manure applications, soil type, variety being grown, etc. (farms.com)

Here are four different ways chemists use to show a molecule of nitrogen. (windows2universe.org)
In colored molecule models like these, nitrogen is usually blue. (windows2universe.org)
A molecule of nitrogen gas is made up of two nitrogen atoms . (windows2universe.org)

Pacific salmon acquire most of their biomass in the ocean before returning to spawn and die in coastal streams and lakes, thus providing subsidies of marine‐derived nitrogen (MDN) to freshwater and terrestrial ecosystems. (usgs.gov)

Soil nitrogen reactions are described in Figure 1 below, where those leading reactions to losses are labelled in red with red arrows. (gov.mb.ca)

Numerical simulation of tissue freezing by liquid nitrogen based. (iifiir.org)

The oldest slow-release products are natural fertilizers such as compost, cottonseed meal, sewage sludge and manure which release nitrogen as the microorganisms in the soil break them down. (msucares.com)
Some sources combine urea with formaldehyde and many of the more modern products contain quick-release nitrogen forms that have thin plastic, sulfur, or resin coatings that allow water to dissolve them slowly. (msucares.com)
Do legumes release nitrogen continuously or only after they are killed? (permies.com)

Discharging source-separated and nitrified urine into sewer helps to save cost and space in biological nitrogen treatment as in-sewer denitrification is induced. (iwaponline.com)

The study describes where within the Mississippi/Atchafalaya River Basin nutrients originate and identifies the relative importance of different nutrient sources-e.g., fertilizers, manure, wastewater treatment plants, or atmospheric deposition-throughout the Basin. (usgs.gov)
An associated online mapping tool can be used by water-quality mangers to identify where the largest sources of nutrients are throughout the Mississippi/Atchafalaya River Basin and to guide actions to reduce nutrient loading to the Gulf of Mexico. (usgs.gov)
The effects of nonpoint source nutrients on estuaries can be difficult to pinpoint, with researchers often using indicator species, monitoring, and models to detect influence and change. (mdpi.com)
There are many different types of fertilizers with varying amounts of the essential nutrients within them, but the three numbers marked on the bags represent the percentage of nitrogen, phosphorous, and potassium. (msucares.com)
Symbiotic nitrogen- (N) fixing trees can influence multiple biogeochemical cycles by fixing atmospheric N, which drives net primary productivity and soil carbon (C) and N accumulation, as well as by mobilizing soil phosphorus (P) and other nutrients to support growth and metabolism. (usgs.gov)
Since 1969, researchers have been artificially manipulating a lake by adding varying amounts of carbon, nitrogen, and phosphorus to investigate the nutrients responsible for algal blooms. (sciencedaily.com)
Nutrients play an important role in the restoration of the surface ecosystem in the desertification area, which is prone to loss and leakage, and the transport and transformation of nitrogen is crucial to the growth and development of plants in the ecosystem and the safety of drinking water for the residents. (mdpi.com)
Boreal trees rely on their ectomycorrhizal fungal symbionts to acquire growth-limiting nutrients, such as nitrogen (N), which mainly occurs as proteins complexed in soil organic matter (SOM). (lu.se)
Especially plant growth-limiting nutrients such as nitrogen (N) and phosphorus (P) are known to be taken up efficiently by ECM fungi. (lu.se)

About 4/5ths of Earth's atmosphere is nitrogen gas! (windows2universe.org)

We estimate whether within-watershed variation in AES payments affects nitrogen and phosphorus concentrations in water samples. (lu.se)

b) 1x1 km resolution AAE data summarising the exceedances of nutrient nitrogen critical loads for thirteen habitats. (data.gov.uk)
Our findings reveal couplings among catchment flow paths, nutrient sources, and transformations that control seasonal extremes of stream nitrogen in forested landscapes. (usgs.gov)

Using the SPARROW ( SPAtially Referenced Regression On Watershed attributes ) model, the study determined that catchments in the Corn Belt and along the Mississippi River had the highest yields (mass per unit area) of N and P. Agricultural activities were the largest source of N and P, but local inputs from wastewater treatment plants in some cases also were large contributors, and natural sources were sizable contributors of P. (usgs.gov)
Groundwater inputs, and input of particulate N (PN) from atmospheric sources such as smoke and ash is significant (Harris, 2001). (ozcoasts.org.au)
Large inputs of unprocessed atmospheric nitrate show direct and rapid effects on forest streams that may be widespread, although undocumented, throughout nitrogen-polluted temperate forests. (usgs.gov)
We show that nitrogen balance-the difference between nitrogen inputs and nitrogen outputs in an agricultural production system-is a robust measure of nitrogen losses that is simple to calculate, easily understood, and based on readily available farm data. (org.in)

The Nitrogen Cycle explains how nitrogen atoms move around in the environment, including through living things like you and me! (windows2universe.org)
Find similar words to nitrogen cycle using the buttons below. (yourdictionary.com)

Conversely, crops are obtaining the remainder of their nitrogen needs elsewhere (residual soil N, mineralization of organic matter, manure and previous pulse crops, etc). (gov.mb.ca)
Decomposition of organic matter within the sediment produces dissolved inorganic nitrogen (potentially available for further plant/ phytoplankton growth). (ozcoasts.org.au)

This research theme facilitates the sound management and restoration of Pacific Northwest Douglas-fir forests, as well as to refine broader-scale predictions of how temperate forests will function in an increasingly nitrogen-rich world. (usgs.gov)

Your fertilizer program should be based on turf species, use of lawn, growing zone, and source of fertilizer. (msucares.com)
Generally, bermudagrass and zoysia are heavy feeders of nitrogen and prefer a ratio of 4-1-2 of N-P-K, whereas centipede would do just fine on a 1-1-2 ratio of N-P-K. Keep this in mind when selecting a turf fertilizer. (msucares.com)
However, there is considerable difference in the types of fertilizer sources and their release time or availability of nitrogen to the plant. (msucares.com)
Nitrogen fertilizer sources are classified as either readily available or slow release. (msucares.com)
The advantages of such fertilizer sources are that they are generally less expensive per pound of actual nitrogen and plants respond very quickly following an application. (msucares.com)
Four experiments were implemented to determine (1) fertilizer and mycorrhizal effects, (2) effects of successional stage of inoculum source, (3) effects of nitrogen sources in conjunction with mycorrhizae, and (4) the combinations of microsites, fertilizer, and mycorrhizae needed to establish vegetation on a steep slope. (cdc.gov)

Although nitrogen is on the minds of many, sulfur deficiencies are starting to be seen in fields as well. (no-tillfarmer.com)
The properties of nitrogen mustards are only slightly different from those of sulfur mustards, another major class of blister agents. (cdc.gov)

The data were generated under Defra-funded work to assess the potential areas of acid and nitrogen sensitive habitats at risk of adverse impacts from excess atmospheric acid and nitrogen deposition. (data.gov.uk)

Nitrogen mustards have not previously been used in warfare. (cdc.gov)
Nitrogen mustards are alkylating agents that affect DNA and other molecules in the body. (cdc.gov)
Although the nitrogen mustards cause cellular changes within minutes of contact, the onset of pain and other symptoms is delayed. (cdc.gov)

2001). A small proportion of the particulate nitrogen (PN) deposited into the sediment is buried, although due to the shallow nature of these systems, resuspension is common. (ozcoasts.org.au)
Air pollution and in particular its fine particulate component have recently been classified as a cause of lung cancer by IARC,2 which had already classified diesel combustion and the burning of coal (two main causes of household and ambient air pollution) as the source of carcinogens. (who.int)

Other pnictogen pentahydrides are theretically more stable, such as phosphorus pentahydride (PH4H) which is more stable than nitrogen pentahydride but still unstable to decomposition to phosphine and hydrogen gas. (wikipedia.org)

Additives or enhancers do not increase yields over traditional nitrogen products but under loss conditions they minimize those losses so more is available for the crop. (gov.mb.ca)
Urease inhibitors can be utilized to effectively minimize nitrogen losses. (farms.com)
By providing the necessary nitrogen for cell lysis and differentiation, these sources minimize variations in sample preparation and improve the accuracy and reliability of hematological analyses. (primescholars.com)

The data provide information on the amount of excess acid or nitrogen deposition above the critical load values set to protect acid- and nitrogen-sensitive habitats in the UK. (data.gov.uk)

Air pollution comes from many different sources. (windows2universe.org)
Farmers, food supply-chain entities, and policymakers need a simple but robust indicator to demonstrate progress toward reducing nitrogen pollution associated with food production. (org.in)
A short documentary focuses on the invisible threat of nitrogen pollution and how it is impacting the Westport River and Buzzards Bay. (savebuzzardsbay.org)
Where is all that nitrogen pollution coming from? (savebuzzardsbay.org)
For the past several years, the Coalition has been working in Wareham to reduce nitrogen pollution and protect clean water. (savebuzzardsbay.org)
About five years ago, we organized a group of local leaders to come up with solutions to the town's nitrogen pollution problem. (savebuzzardsbay.org)
In 2013, the Wareham Board of Health passed new regulations to reduce new sources of nitrogen pollution to its coastal waters. (savebuzzardsbay.org)
This type of regulation, designed specifically to limit the increase of nitrogen pollution to local waterways, was the first of its kind in the Buzzards Bay region. (savebuzzardsbay.org)
Nitrogen pollution can lead to algae blooms like this one in Marks Cove in 2012, called "rusty tide. (savebuzzardsbay.org)

Few studies have explored how interactions of biogeochemical transformations, various nitrogen sources, and catchment flow paths affect stream nitrogen variation during autumn. (usgs.gov)

If you wish to apply all your nitrogen in one application, then that application should be made in late April to avoid significant nitrogen losses that may occur from wet soils earlier in the growing season. (farms.com)
This amount stimulates tiller development while avoiding significant nitrogen losses. (farms.com)
Nitrogen balance provides farmers with a means of demonstrating to an increasingly concerned public that they are succeeding in reducing nitrogen losses while also improving the overall sustainability of their farming operation. (org.in)

Catchment -derived sources of nitrogen are less important in coastal lagoons and strandplain-associated creeks - significant input typically occurs during extreme rainfall events only. (ozcoasts.org.au)

Down on the land, nitrogen atoms are important parts of living creatures, soils, and even rivers. (windows2universe.org)
Dissolved organic nitrogen was hydrologically flushed to the stream from riparian soils during stormflow. (usgs.gov)
Although early season nitrogen applications can be effective in boosting yields in later planted winter wheat, they are often applied at a time when more frequent rainfall occurs and soils are saturated. (farms.com)

leading to the characterization of three groups of amino acids, based on their carbon assimilation and dissimilation by G. candidum , in presence of a primary carbon source, glucose, as the limiting substrate ( Aziza and Amrane, 2007 ). (ejbiotechnology.info)

A new USGS study estimates total nitrogen (N) and total phosphorus (P) yields from catchments throughout the Mississippi/Atchafalaya River Basin, which drains about 41% of the conterminous United States. (usgs.gov)

WARNING: These pages are for general reference and educational purposes only and MUST NOT be relied upon as a sole source to determine regulatory compliance or where matters of life and health are concerned. (environmentalchemistry.com)
In the genus Corynebacterium , AmtR is a key component of the nitrogen regulatory system, and it belongs to the TetR family of transcription regulators. (frontiersin.org)
The NMB0736 gene of Neisseria meningitidis serogroup B strain MC58 encodes the putative nitrogen regulatory protein, IIANtr (abbreviated to NM-IIANtr). (rcsb.org)

WARNING: Administration of nitrogen may be hazardous or contraindicated. (nih.gov)

The assessment was based on the accuracy with which DSSAT could simulate measured grain yield, above-ground biomass, leaf area index (LAI), soil inorganic nitrogen concentration, and soil water content. (bioone.org)
1998). Long residence times (during barrier closure) ensure that processing of dissolved inorganic nitrogen is complete. (ozcoasts.org.au)

Urea is a supplemental nitrogen source employed in certain specialized hematological tests. (primescholars.com)
The use of supplemental nitrogen sources in hematology offers several benefits. (primescholars.com)
Moreover, supplemental nitrogen sources aid in the detection of subtle abnormalities in blood cell morphology. (primescholars.com)
However, it is essential to note that the appropriate use and concentration of supplemental nitrogen sources are critical for accurate hematological analysis. (primescholars.com)
In conclusion, supplemental nitrogen sources play a vital role in enhancing hematological analysis. (primescholars.com)
By employing supplemental nitrogen sources appropriately, hematological laboratories can achieve more precise and informative results, ultimately benefiting patient care and advancing our understanding of blood disorders. (primescholars.com)

Plants, including our lawn grasses, can't tell the difference in elemental nitrogen once it becomes usable by the plant. (msucares.com)
Nitrogen fixing plants for apple guild, where to buy them? (permies.com)

Real-time quantitative PCR (RT-qPCR) analysis and sfGFP (superfolder green fluorescent protein) analysis reveal that AmtR directly and negatively regulates the transcription and expression of crn A, cre T, csh A, and hyu B. A growth test shows that C. glutamicum ATCC 14067 can use creatine or creatinine as a sole nitrogen source. (frontiersin.org)

One of the main sources is wastewater, including septic systems. (savebuzzardsbay.org)
Sampling was carried out at five stations based on water movements to the estuary, station A was located at the seawater, station B was located in the pond wastewater locations, station C was water sources from residential waste, station D was located in the river, and station E was the estuarine water. (who.int)

The largest energy consumption (ca 2,5 TWh) in Swedish agriculture is linked to the production of nitrogen fertilisers, of which 95% originates from non-renewable fossil sources. (slu.se)

Laura L. Van Eerd , Katelyn A. Congreves , Adam Hayes , Anne Verhallen , and David C. Hooker "Long-term tillage and crop rotation effects on soil quality, organic carbon, and total nitrogen," Canadian Journal of Soil Science 94(3), 303-315, (5 May 2014). (bioone.org)
Very small quantities of the total nitrogen (TN) load are exported to the marine environment only during periods of open entrance conditions. (ozcoasts.org.au)
When using split nitrogen applications 50-60% of your total nitrogen should be applied in the first application (mid to late March) with the remainder being applied in the second application (first to second node). (farms.com)
This study aimed to determine the total organic contents, total Nitrogen, and Phosphorus in the estuary waters of Maros as a source of brackish water for fish pond aquaculture in Maros Regency. (who.int)

The results indicate that discharging source-separated and nitrified urine into sewer is meaningful to decentralized sewage treatment, especially when sulfide is absent in the sewer. (iwaponline.com)

Dioxide18

Oxides11

Ammonium14

Blood urea nit4

Ammonia4

Nitric oxide1

Atmospheric nitrogen3

Urea nitrogen8

Compounds3

Fixation3

Minimizing nitrogen losses1

Utilization2

Mustard4

Hydrogen atoms3

Amount of nitrogen2

Molecule3

Ecosystems1

Soil nitrogen1

Liquid nitrogen1

Release nitrogen3

Biological nitrogen1

Nutrients9

Earth's1

Concentrations1

Nutrient2

Inputs4

Cycle2

Organic matter2

Temperate forests1

Fertilizer6

Sulfur2

Impacts1

Mustards3

Particulate2

Decomposition1

Minimize3

Excess1

Pollution9

Biogeochemical1

Losses3

Catchment1

Soils3

Carbon source1

Yields1

Regulatory3

Hazardous1

Inorganic2

Supplemental6

Plants2

Creatinine1

Wastewater2

Agriculture1

Total4

Urine1