Nitrates nitrogen. Medical search. Frequent questions

Other oxides of nitrogen can also be absorbed producing nitrous acid which is retained in the aqueous solution in a similar manner. (ureaknowhow.com)
Thereafter, the scrubbing solution is regenerated under controlled conditions, producing a gas stream which contains the recovered nitrogen oxides in relatively high concentration and a scrubbing solution which can be recycled. (ureaknowhow.com)
The recovered nitrogen oxides may be used in the manufacture of nitric acid or other compounds or decomposed into harmless gases. (ureaknowhow.com)
Nitrogen oxides (NOx ) have fallen steadily across the US over the last 15 years. (nasa.gov)
61. Nitrogen plays a role in air pollution primarily through two of its forms - ammonia and nitrogen oxides. (parliament.uk)
151 Ammonia can also combine with other forms of air pollution such as nitrogen oxides released by transport, industrial and household activities and sulphur dioxide from industry, and contribute to the formation of airborne fine particulate matter (also called PM2.5), with strong negative impacts on human health. (parliament.uk)
152 This Committee has looked at the health impact of nitrogen oxides as part of its work on air quality. (parliament.uk)
153 Nitrogen oxides, 154 particulate matter (PM), and ozone (O₃) cause a range of health problems, including: adverse impacts on lung function and lung growth, respiratory problems, asthma prevalence and incidence, cancer, heart disease, adverse birth outcomes and mortality. (parliament.uk)
155 Nitrogen dioxide, one of the nitrogen oxides, and particulate matter causes an estimated 40,000 early deaths every year, 156 and has been estimated to cost the UK up to £19 billion annually. (parliament.uk)
63. In 2016, almost all nitrogen oxides emissions (99%) came from the burning of fuels: 34% for road transport, 23% for other forms of transport (including off-road vehicles and mobile machinery), 22% from power stations and other energy producers, and 12% from other industrial sites. (parliament.uk)
The EU's 2016 National Emission Ceilings Directive sets national 'ceilings' for air pollutants, including nitrogen oxides and ammonia. (parliament.uk)
65. Other relevant directives include the Industrial Emission Directive (IED) and the Medium Combustion Plant Directive which target emissions, including nitrogen oxides. (parliament.uk)
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)

Production of calcium ammonium nitrate consumed 3% of world ammonia production in 2003. (wikipedia.org)
Calcium nitrate is synthesized chemically by treating limestone with nitric acid, followed by neutralizing the outcome with ammonia. (researchandmarkets.com)
161 We heard evidence that ammonia emissions may have increased due to the use of anaerobic digestate and spreading of urea fertilisers as opposed to ammonium nitrate-based fertilisers. (parliament.uk)
The external cost of pollution by ammonia and nitrate from agriculture in the European Union (EU27) in 2008 was estimated at 61-215 billion € (0.5 to 1.8% of GDP). (pbl.nl)
We provide accurate, globally accepted nitrogen and ammonia analysis services in accordance with international standards. (sgs.com)
3) Moreover, communities that assimilate nitrogen (N) in the oxidized form nitrate have higher RQ compared to systems where organic N or ammonia is used. (lu.se)
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)
The results of water quality analysis in estuaries showed that salinity, organic matter, ammonia, nitrite and nitrate, and phosphate exceed the standard threshold for water quality standards for fish pond aquaculture. (who.int)

Only 5% of the intracellular nitrate was reduced to ammonium, while 59% was recovered as nitrite. (frontiersin.org)
Diverse species of bacteria that have an assimilatory nitrate/nitrite reductase system (NAS) can use nitrate or nitrite as the sole nitrogen source for growth when ammonium is limited. (ox.ac.uk)
By contrast, a nitrogen oxyanion-binding sensor (NasS) is required for nitrate/nitrite-responsive control of nas gene expression. (ox.ac.uk)
This protein-protein interaction is sensitive to nitrate and nitrite, which cause dissociation of the NasS-NasT complex into monomeric NasS and an oligomeric form of NasT. (ox.ac.uk)
Nitrate/Nitrite Toxicity: What Are U.S. Standards and Regulations for Nitrates and Nitrites Exposure? (cdc.gov)
EPA has set an RfD of 0.l mg nitrite nitrogen/kg body weight per day (equivalent to 0.33 mg nitrite ion/kg body weight per day) [Mensinga et al. (cdc.gov)
The FDA regulates allowable levels of inorganic nitrate and nitrite in bottled water [FDA 2005] as well as levels allowable in foodstuffs [FDA 2003]. (cdc.gov)
so that the level of sodium nitrate does not exceed 500 parts per million (ppm) and the level of sodium nitrite does not exceed 200 ppm in the finished product. (cdc.gov)
As a preservative and color fixative, with or without sodium nitrite, in meat-curing preparations for the home curing of meat and meat products (including poultry and wild game), with directions for use which limit the amount of sodium nitrate to not more than 500 ppm in the finished meat product and the amount of sodium nitrite to not more than 200 ppm in the finished meat product. (cdc.gov)
Sodium nitrate is synthesized by treating nitrite with nitric acid. (sigmaaldrich.com)
Nitrate and Nitrite are naturally occurring ionic species that are part of the earths nitrogen cycle. (cdc.gov)
Nitrite is readily oxidized (combines with oxygen) to form nitrate. (cdc.gov)
Additional uses of commercial nitrate and nitrite include food preservation and the production of munitions and explosives. (cdc.gov)

CAN is preferred for use on acid soils, as it acidifies soil less than many common nitrogen fertilizers. (wikipedia.org)
Its adsorption by plants directly depends on its content in the soil, as well as from the form and doses of nitrogen fertilizers. (institut-palanka.rs)
The experimental part of this research was conducted during spring of 2009 and 2010 by applying two types of nitrogen fertilizers (CAN and urea) in three variants (80, 160 and 240 kg/ha N). The testing was performed on commercial variety Matador (Institute for Vegetable Crops, Smederevska Palanka). (institut-palanka.rs)
The current cost of nitrogen fertilizers requires growers to make well-educated and accurate decisions regarding when and how much nitrogen is needed. (specmeters.com)
In commerce, the majority of nitrate is used in inorganic fertilizers. (cdc.gov)
Samples were collected and spiked with various combinations of locally used agricultural grade fertilizers, including ammonium nitrate, urea, and triple phosphate (calcium dihydrogen phosphate). (cdc.gov)
The addition of both nitrogen fertilizers (ammonium nitrate and urea) at the concentrations used in this study, in the absence of phosphorus, was deleterious to both the Chlorophyta and cyanobacteria. (cdc.gov)

Nitrogen is an essential nutrient for growth and is readily available to microbes in many environments in the form of ammonium and nitrate. (ox.ac.uk)
Therefore, the objective of the experiment was to express the dependence numerically (statistically) of the selected yield parameters of radish on the contents of ammonium and nitrate nitrogen occurring in the soil growing medium in different periods of radish vegetation. (jeeng.net)

Describe the U.S. Environmental Protection Agency's (EPA's) recommended limit for nitrates and nitrites in drinking water. (cdc.gov)
Describe the U.S. Food and Drug Administration's (FDA's) recommended limit for nitrates and nitrites in bottled water and foodstuffs. (cdc.gov)

Calcium ammonium nitrate or CAN, also known as nitro-limestone or nitrochalk, is a widely used inorganic fertilizer, accounting for 4% of all nitrogen fertilizer used worldwide in 2007. (wikipedia.org)

Silver River (top) has nearly triple the nitrate concentration of Alexander Springs Creek. (ufl.edu)
The combined constraints of nitrate concentration and δ 15 N of NO 3 - in the equatorial Pacific require (1) lateral exchange between the high-latitude source waters and the zones of denitrification in the eastern tropical Pacific and (2) the accumulation of remineralized nutrients at depth. (princeton.edu)
Nitric oxide may be removed from gases which it is admixed by contacting the gases with aqueous solutions containing nitrate ions in sufficient concentration to oxidize the nitric oxide to nitrous acid and to retain it in the solution under stable conditions. (ureaknowhow.com)
Individually, wetlands are known to remove nitrate but the conditions under which multiple wetlands meaningfully reduce riverine nitrate concentration have not been established. (nature.com)
By clearly isolating the effect of wetlands from crop cover, we show that, under moderate-high streamflow, wetlands are five times more efficient per unit area at reducing riverine nitrate concentration than the most effective land-based nitrogen mitigation strategies, which include cover crops and land retirement. (nature.com)
As a result of the adsorption of nitrate on the LDH, the nitrate-N concentration in the soil solution at harvest was reduced by a factor of ten compared to a soil without LDH. (springer.com)
Denitrification rates ranged from non-detectable to 12 mmol N m −2 d −1 , and correlated positively with both bottom water nitrate concentration and sediment. (lu.se)
and correlated positively with both bottom water nitrate concentration and sediment organic carbon content. (lu.se)

The EU's 2008 Ambient Air Quality Directive sets limits for concentrations of pollutants in the air, including nitrogen dioxide, particulate matter, fine particulate matter, sulphur dioxide, lead, carbon monoxide and benzene. (parliament.uk)
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)

Ethyl nitrate has the smallest impact of the three species (4 Gg N). We find that methyl nitrate is the dominant form of reactive nitrogen (NOy ) in the Southern Ocean marine boundary layer, where its addition to the model corrects a large NOy underestimate in austral winter relative to recent aircraft data. (nasa.gov)
Intensively managed row crop agriculture has fundamentally changed Earth surface processes within the Mississippi River basin through large-scale alterations of land cover, hydrology and reactive nitrogen availability. (nature.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)
In this study, we focused on the two most important coastal biogeochemical processes that remove nitrogen and phosphorus permanently: denitrification and phosphorus burial. (lu.se)
We estimate that the coastal filter in the Baltic Sea removes 16% of nitrogen and 53% of phosphorus inputs from land. (lu.se)
Cyanobacteria growth was enhanced in these conditions by the combined addition of ammonium nitrate, urea, and phosphorus fertilizer. (cdc.gov)
Growth also occurred when using either ammonium nitrate or urea fertilizer with no additional phosphorus input, suggesting that phosphorus was not limiting the cyanobacteria at the time of sample collection. (cdc.gov)
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)

Statistically significant higher level of nitrogen was found in leaves treated with CAN comparing to urea. (institut-palanka.rs)
and 4) sidedress N application with 40 lb N/A as urea ammonium nitrate (UAN) at planting, plus an in-season adjusted rate. (ipni.net)

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)
We propose that the remineralized products of nitrogen fixation, at the source of the SSCC in the western south Pacific, are the origin of the low δ 15 N of NO 3 - in these waters. (princeton.edu)

abstract = "Nitrification and nitrate leaching have been suggested to be major causes of soil acidification. (edu.au)

When exposed to a light:dark cycle and oxic conditions, S. marinoi stored nitrate intracellularly in concentrations >60 mmol L -1 both as free-living cells and associated to aggregates. (frontiersin.org)
Intracellular nitrate concentrations exceeded extracellular concentrations by three orders of magnitude. (frontiersin.org)
In his Feb. 25 symposium presentation, Cohen shared photos of springs with high nitrate concentrations and little algae growth alongside springs with lower nitrate concentrations and worrisome algae growth. (ufl.edu)
Overall treatment variations in SPAD readings were consistent with those in petiole nitrate-nitrogen (NO 3 -N) concentrations. (umn.edu)
With no change in NH 3 emissions, SNA mass concentrations in 2015 will decrease over SCB and SC compared to their 2006 levels, but increase over NC where the magnitude of nitrate increase exceeds that of sulfate reduction. (copernicus.org)
Nitrate, nitrous oxide (N2O) and ammonium (NH+4) concentrations were monitored over time. (cdc.gov)

Many nitrogen-containing gases are released over polluted areas and are quickly broken down-staying far away from remote areas like the ocean. (nasa.gov)
In this paper, we investigate a group of nitrogen gases (called alkyl nitrates) that break down more slowly and so stay in the atmosphere long enough to be transported to the otherwise pollution-free remote Pacific Ocean. (nasa.gov)

Stream denitrification across biomes and its response to anthropogenic nitrate loading. (nature.com)
Denitrification rates in aquatic sediments from three sites upland of high salinity estuaries were measured to compare nitrate (NO-3) removal by sediment bacteria. (cdc.gov)
The rates exhibited a strong decreasing gradient from land to the open coast, which was likely driven by the availability of nitrate and labile organic carbon, but a high proportion of non-cohesive sediments in the coastal zone decreased the denitrification efficiency relative to the open sea. (lu.se)

We report measurements of the nitrogen isotopic composition of nitrate (the δ 15 N of NO 3 - ) across the equatorial Pacific, for zonal transects from 165E to 95W and meridional transects across 95 and 110W. (princeton.edu)

Sinking aggregates also represent pelagic microniches with intensified microbial activity, oxygen depletion in the center, and anaerobic nitrogen cycling. (frontiersin.org)

Nitrate is the least toxic nutrient in aquariums, however high nitrate will cause green water and algae outbreaks. (algone.com)

This includes inspection for required labeling of meat products when substances such as sodium nitrate are used in meat packaging [USDA 2012]. (cdc.gov)
Supplementation of sodium nitrate may serve to improve acute heart failure (AHF) by modulating the nitric oxide precursor levels. (sigmaaldrich.com)

Seeping into our freshwater from aging wastewater systems and agricultural fields, nitrate provides fuel for algae to grow in places like estuaries. (ufl.edu)
Graphs and charts showing the nitrogen leaching from farm land to demonstrate the effect of changing agricultural practices. (sare.org)
Reducing nitrogen export from the Corn Belt to the Gulf of Mexico: agricultural strategies for remediating hypoxia. (nature.com)
Based on the need for nitrate-N reductions to meet water quality goals, new agricultural management practices are needed that have the potential to significantly reduce nitrate-N losses at minimal cost or even economic benefits to farm operations. (ipni.net)
Biogenic nitrogen (N 2 ) and nitrous oxide (N 2 O) accumulations were measured in groundwater, streams and the vadose zone of small agricultural watersheds in the Mid-Atlantic USA. (cambridge.org)

68. These overall reductions in nitrogen oxide emissions have included reductions in nitrous oxide emissions. (parliament.uk)

Methyl, Ethyl, and Propyl Nitrates: Global Distribution and Impacts on Reactive. (nasa.gov)
Plain Language Summary Nitrogen in the atmosphere has many impacts on atmospheric chemistry, including affecting how polluted the air is. (nasa.gov)
We use 20 years of measurements collected from aircraft, combined with a computer model, to determine the abundance and impacts of alkyl nitrates. (nasa.gov)

It is concluded that the LDH has a potential to be used as a long-term nitrate exchanger to control the movement of nitrate in soil, and thereby reduce risks of nitrate leaching in crop production in sensible areas. (springer.com)

Nutrient pollution, particularly from excess nitrogen in the form of nitrate, is often considered by scientists to be a main culprit of these algal blooms. (ufl.edu)
These changes have created leaky landscapes where excess agriculturally derived nitrate degrades riverine water quality at local, regional and continental scales. (nature.com)

This knowledge led Matt Cohen, professor in the UF/IFAS School of Forest Resources and Conservation, to think differently about the way springs have been managed in the past, which was largely centered on reducing nitrogen pollution. (ufl.edu)
Reducing nitrate won't necessarily get rid of the algae, but it's still something we've got to do. (ufl.edu)
Nitrogen (N) management is critical in optimizing potato yield and quality and reducing environmental pollution. (umn.edu)

We show that alkyl nitrates are playing an increasingly important role over the remote oceans because of recent growth in East Asian air pollution. (nasa.gov)
This paper tests the hypothesis that relocation of pig production within the EU27 can reduce the external costs of nitrogen (N) pollution. (pbl.nl)

Since some of the aggregate-forming diatom species store nitrate intracellularly, we explored the fate of intracellular nitrate and its availability for microbial metabolism within anoxic diatom-bacteria aggregates. (frontiersin.org)

Pre-sidedress soil nitrate test (PSNT) provide a means of estimating soil nitrogen supply, and can aid producers in fine-tuning their nitrogen application rates for corn. (fieldcropnews.com)
As a result of this extrapolation, soil nitrogen supply will be overstated under circumstances where additional nitrate has been added through fertilization (i.e. broadcast pre-plant N applications), and as a result nitrogen recommendations will be underestimated. (fieldcropnews.com)
Thus, no soil nitrate tests are available which can aid in evaluating the relative soil nitrogen supply for the large portion of Ontario's corn acreage that receives pre-plant nitrogen. (fieldcropnews.com)

Since nitrogen overdoses can jeopardize spinach nutritive value, a special attention should be given to its nitrogen fertilization. (institut-palanka.rs)

Spinach yield was directly dependent from the nitrogen doses supplied, but no statistically significant difference was found among nitrogen forms. (institut-palanka.rs)

At $5,198,132 in 2019, the country was number 70 comparing other countries in Import of Ammonium Nitrate. (nationmaster.com)
In 2019, the country was number 96 comparing other countries in Nitrogen Fertilizer for Agriculture at 40,910.68 Metric Tons. (nationmaster.com)

In nature, plants utilize nitrate as an essential nutrient. (cdc.gov)

In contrast, the uptake of nitrate by the roots reduces net acid production in subsoil layers. (edu.au)
The LDH adsorbed nitrate from the soil solution during the growth period without affecting plant N uptake. (springer.com)

Although the effects of increased total airborne N by anthropogenic emissions on bog vegetation are well documented, the important question remains how different N forms (ammonium, NH4+, versus nitrate, NO3−) affect N cycling, as their relative contribution to the total load strongly varies among regions globally. (nerc.ac.uk)
We use a chemical transport model to examine the change of sulfate-nitrate-ammonium (SNA) aerosols over China due to anthropogenic emission changes of their precursors (SO 2 , NO x and NH 3 ) from 2000 to 2015. (copernicus.org)

The ubiquitous nitrate-storing diatom Skeletonema marinoi was studied as both axenic cultures and laboratory-produced diatom-bacteria aggregates. (frontiersin.org)
Intracellular nitrate was used up within 2-3 days after shifting diatom-bacteria aggregates to dark and anoxic conditions. (frontiersin.org)

The LDH efficiently adsorbed nitrate that was mineralized in the soil during periods without cultivation, reduced nitrate-N leaching losses by about 80%, and kept this nitrate available for a following crop. (springer.com)

During this period, sulfate is the dominant component of SNA over South China (SC) and Sichuan Basin (SCB), while nitrate and sulfate contribute equally over North China (NC). (copernicus.org)
Constituents of PM 2.5 (sulfate, nitrate, ammonium, organic matter, and black carbon) were obtained from models based on satellite, ground-based monitor, and chemical transport modeling data. (medscape.com)

Cohen explained that increasing a nutrient like nitrate should not play a big role in increased algae growth because the springs generally show many signs of nutrient saturation. (ufl.edu)

Hence, aggregate-associated diatoms accumulate nitrate from the surrounding water and sustain complex nitrogen transformations, including loss of fixed nitrogen, in anoxic, pelagic microniches. (frontiersin.org)
A growing body of research led by UF scientists suggests that for some springs, changes in water flow play a bigger role than nitrate levels in prompting the overgrowth of algae. (ufl.edu)
But placing blame on nitrate is not without merit, said Robert Mattson, an environmental scientist at the St. Johns River Water Management District. (ufl.edu)
Once a water source is contaminated, the costs of protecting consumers from nitrate exposure can be significant. (cdc.gov)
The current water standard for nitrate is based on levels considered low enough to protect infants from methemoglobinemia. (cdc.gov)
Aquarium nitrate is most commonly removed through regular water changes. (algone.com)
Water changes remove nitrates and pollutants from the aquarium. (algone.com)

The term "calcium ammonium nitrate" is applied to multiple different, but closely related formulations. (wikipedia.org)
Unlike ammonium nitrate, these calcium containing formulations are not classified as oxidizers by the United States Department of Transportation. (wikipedia.org)
Most calcium ammonium nitrate is used as a fertilizer. (wikipedia.org)
Fertilizer grade CAN contains roughly 8% calcium and 21-27% nitrogen. (wikipedia.org)
Calcium ammonium nitrate is used in some instant cold packs as an alternative to ammonium nitrate. (wikipedia.org)
Calcium ammonium nitrate has seen use in improvised explosives. (wikipedia.org)
Calcium nitrate is produced in a granulated form and is mostly used as a nitrogen fertilizer in agriculture. (researchandmarkets.com)
Calcium nitrate is also used for in manufacturing concrete, explosives, and wastewater treatment chemicals. (researchandmarkets.com)
The global calcium nitrate market is broadly segmented into North America, Europe, APAC (APAC), Middle East & Africa (MEA), and South and Central America (SAM). (researchandmarkets.com)
North America is the second-largest contributor to the global calcium nitrate market. (researchandmarkets.com)
India, Japan, and China are among the major markets for calcium nitrate in the region. (researchandmarkets.com)
The size of overall global calcium nitrate market has been derived using both primary and secondary source. (researchandmarkets.com)
The participants of this process include industry experts such as VPs, business development managers, market intelligence managers, and national sales managers-along with external consultants such as valuation experts, research analysts, and key opinion leaders-specializing in the calcium nitrate market. (researchandmarkets.com)
Features key findings and crucial progressive industry trends in the global calcium nitrate market, thereby allowing players to develop effective long-term strategies. (researchandmarkets.com)

Nitrogen oxyanion-dependent dissociation of a two-component complex that regulates bacterial nitrate assimilation. (ox.ac.uk)

Nitrogen is essential for healthy and high yielding crops. (specmeters.com)

Blankenau K, Olfs H-W, Kuhlmann H (2000b) Effect of microbial nitrogen immobilization during the growth period on the availability of nitrogen fertilizer for winter cereals. (springer.com)

Stable 15 N isotope incubations under dark and anoxic conditions revealed that axenic S. marinoi is able to reduce intracellular nitrate to ammonium that is immediately excreted by the cells. (frontiersin.org)

The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. (lookchem.com)

Magnesium nitrate hexahydrate for analysis EMSURE ACS,Reag. (lookchem.com)

I think that one of the biggest misconceptions is that the reduction of nitrate is going to return our springs to their former glory," said Gregory Owen, a senior planner with the Alachua County Environmental Protection Department. (ufl.edu)
If NH 3 emissions are allowed to keep their recent growth rate and increase by +16% from 2006 to 2015, the benefit of SO 2 reduction will be completely offset over all of China due to the significant increase of nitrate, demonstrating the critical role of NH 3 in regulating nitrate. (copernicus.org)

Recent nitrogen research in Ontario has identified a pre-sidedress soil nitrate threshold of 36 ppm which has been relatively effective at identifying whether additional nitrogen is likely to provide an economic yield response when a modest (i.e. 100 lb-N/ac) amount of nitrogen has been applied at pre-plant. (fieldcropnews.com)
A 0 lb-N/ac control plots was also left to verify an economic yield response to nitrogen above the 90-100 lb-N/ac pre-plant rate. (fieldcropnews.com)
On the contrary, the content of nitrates and vitamin C (influencing the yield quality) was dependent mostly on the contents of Nin present in the soil substrate in the second half of radish growing season. (jeeng.net)
Along with the increase in the content of Nin, the root yield and the content of nitrates in roots also increased, while the content of vitamin C was decreased. (jeeng.net)
This three year, field research and demonstration project is designed to evaluate various promising N management methods and technologies by documenting the nitrate-N in tile flow and crop yield from several practices and systems. (ipni.net)

The food additive potassium nitrate may be safely used as a curing agent in the processing of cod roe, in an amount not to exceed 200 ppm of the finished roe. (cdc.gov)

The electrocatalytic N 2 oxidation reaction (NOR) using renewable electricity is a promising alternative to the industrial synthesis of nitrate from NH 3 oxidation. (mpg.de)

Anatomy9

Organisms41

Diseases2

Chemicals and Drugs108

Analytical, Diagnostic and Therapeutic Techniques and Equipment14

Phenomena and Processes67

Disciplines and Occupations4

Technology, Industry, Agriculture13

Information Science4

Health Care20

Geographicals1

Oxides13

Ammonia8

Nitrite13

Fertilizers7

Ammonium and nitrate2

Nitrites2

Inorganic1

Concentration8

Dioxide3

Reactive nitrogen2

Phosphorus6

Urea2

Fixation2

Abstract1

Concentrations6

Gases2

Denitrification3

Isotopic composition1

Oxygen1

High nitrate1

Sodium2

Agricultural5

Oxide1

Impacts3

Crop Production1

Excess2

Reducing3

Pollution2

Metabolism1

Soil nitrogen3

Fertilization1

Statistically1

20192

Essential nutrient1

Uptake2

Anthropogenic2

Bacteria2

Losses1

Sulfate2

Nutrient1

Water7

Calcium14

Regulates1

Crops1

Microbial1

Stable1

Directive1

Magnesium1

Reduction2

Yield5

Potassium1

Oxidation1