Nitrogen Current Events

Nitrogen Current Events, Nitrogen News Articles.
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Freed from the rocky constraints of bedrock, nitrogen supports life
While nitrogen within terrestrial soils and vegetation has largely been thought to come from the atmosphere, a new study points to a previously underappreciated, additional source: weathered bedrock. Since nitrogen availability dictates plant growth, these findings have important implications for understanding the carbon cycle, in which plants are chiefly involved, and also for global climate change. (2018-04-05)

Estimates of anthropogenic nitrogen in the ocean may be high
Inundation of nitrogen into the atmosphere and terrestrial environments, through fossil fuel combustion and extensive fertilization, has risen tenfold since preindustrial times according to research published in Global Biogeochemical Cycles. Excess nitrogen can infiltrate water tables and can trigger extensive algal blooms that deplete aquatic environments of oxygen, among other damaging effects. (2014-12-01)

Because of agriculture, the Gulf of Mexico will suffocate for decades longer
Nitrogen runoff has created a massive oxygen-deprived 'dead zone' in the Gulf of Mexico, but even if the runoff was completely eliminated, it would still take at least 30 years for the area to recover, a new study estimates. (2018-03-22)

Ammonia has been wrongly missing in portraying air pollution impacts
Ammonia plays a vital role in nitrogen deposition and haze pollution. To make things worse, atmospheric ammonia concentrations have increased worldwide in recent decades. Scientists suggest the next generation of field experiments simulating nitrogen deposition should further consider ammonia. (2020-03-20)

Soil carbon and nitrogen mineralization after the initial flush of CO2
Healthy soil should have abundant nitrogen to supply plant growth needs, but it should not all be in the inorganic fraction. Rather, organic nitrogen is the preferred storage warehouse from which soil microorganisms can decompose and release inorganic nitrogen to soil and then to plants. This system avoids leaching and volatile losses of nitrogen. Historically, scientists have had difficulty predicting how much nitrogen is made available to plants by soil biological activity due to time and resource constraints. (2020-04-16)

Scientists may have solved an ecological riddle
A team of scientists may have solved the riddle of why plants that work with bacteria to convert atmospheric nitrogen gas into an essential biological nutrient (ammonia) tend to prevail in the world's tropical regions rather than higher latitudes. (2008-06-19)

Insights into plant growth could curb need for fertilizers
New insights into how plants regulate their absorption of an essential nutrient could help avoid pollution caused by excess use of fertilizer. (2014-11-12)

New nitrogen products are in the air
A nifty move with nitrogen has brought the world one step closer to creating a range of useful products -- from dyes to pharmaceuticals -- out of thin air. (2020-08-12)

Nitrogen study casts doubt on ability of plants to continue absorbing same amounts of CO2
A new study casts doubt as to whether plants will continue to absorb as much carbon dioxide in the future as they have in the past due to declining availability of nitrogen in certain parts of the world. (2018-10-23)

Europe's wildlife under threat from nitrogen
An international study published today warns that nitrogen pollution, resulting from industry and agriculture, is putting wildlife in Europe's at risk. More than 60 percent of the EU's most important wildlife sites receive aerial nitrogen pollution inputs above sustainable levels. (2011-04-13)

Forest canopies help determine natural fertilization rates
In this week's issue of Science, a team of researchers from the United States and Sweden report on a newly identified factor that controls the natural input of new nitrogen into boreal forest ecosystems. The researchers showed that this natural fertilization process appears to be partially controlled by trees and shrubs that sit above the feather mosses. (2008-05-29)

Laser experiments lend insight into metal core at heart of the Earth
Experiments replicating conditions at the core of the Earth could help scientists understand how the planet and its atmosphere were formed. (2018-07-06)

How much does that fertilizer REALLY cost?
To adequately account for the cost of nitrogen pollution, researchers from the University of Minnesota Institute on the Environment have proposed a framework that accounts for all of the damages that occur when reactive nitrogen enters our air or water. (2016-10-05)

Nitrogen-tracking tools for better crops and less pollution
As every gardner knows, nitrogen is crucial for a plant's growth. But nitrogen absorption is inefficient. This means that on the scale of food crops, adding significant levels of nitrogen to the soil through fertilizer presents a number of problems, particularly river and groundwater pollution. As a result, finding a way to improve nitrogen uptake in agricultural products could improve yields and decrease risks to environmental and human health. (2014-02-18)

Mystery surrounding non-platinum catalysts for fuel cell technologies solved
Researchers from the University of Tsukuba have solved a persistent mystery surrounding the structure of nitrogen-doped carbon catalysts with potential for a range of fuel cell technologies. Constructing and testing a number of model catalysts allowed the researchers to clarify the active site as being the carbon atom attached to pyridinic nitrogens in the material. These developments open the door for optimization studies looking to accelerate gains in catalyst performance. (2016-01-21)

A uranium-based compound improves manufacturing of nitrogen products
EPFL scientists have developed a uranium-based complex that can allow nitrogen fixation reactions to take place in ambient conditions. The work overcomes one of the biggest difficulties to building more efficient industrial-scale nitrogen products like ammonia. (2017-07-19)

Put more nitrogen into milk, not manure
The more efficient dairy farmers are in managing nitrogen, the more milk their cows will produce and the less nitrogen will be wasted in manure and urine, according a study by Agricultural Research Service scientists and cooperators. (2010-05-28)

Nitrogen pollution policies around the world lag behind scientific knowledge
National and regional policies aimed at addressing pollution fueled by nitrogen lag behind scientific knowledge of the problem. (2020-07-06)

Forest canopies help determine natural fertilization rates
In this week's issue of Science, a team of researchers from the United States and Sweden report on a newly identified factor that controls the natural input of new nitrogen into boreal forest ecosystems. (2008-05-30)

Chapman University research on the diversity among nitrogen-fixing plants
Researchers at Chapman University and Columbia University have published a study in Nature Plants this month, called 'Diversity of nitrogen fixation strategies in Mediterranean legumes.' The recently published research focuses on a question that has intrigued scientists for decades -- are plants able to regulate their relationships with nitrogen-fixing bacteria? (2015-06-16)

Ocean acidification could impair the nitrogen-fixing ability of marine bacteria
While increased carbon dioxide levels theoretically boost the productivity of nitrogen-fixing bacteria in the world's oceans, because of its 'fertilizing' effect, a new study reveals how increasingly acidic seawater featuring higher levels of this gas can overwhelm these benefits, hampering the essential service these bacteria provide for marine life. (2017-04-27)

Ecosystem consequences of a single, genetically based plant trait
Climate is touted as the main regulator of decomposition and nutrient cycling processes in forest ecosystems. In Ecology Letters, February, Schweitzer et al demonstrate that plant genes impact upon availability of nitrogen for tree growth, via a coupling between chemicals produced by plants to deter herbivory and rates of soil nitrogen turnover. Their research suggests consideration of genetic variation within plant species when developing habitat conservation plans or ecosystem model responses to global climate change. (2004-02-05)

New research shows humans have more impact on tropical nitrogen levels
A new paper co-written by four University of Montana researchers finds that humans have more than doubled tropical nitrogen inputs. (2014-05-19)

Researchers use remote sensing to estimate nitrogen deposition in North China
A new study estimated the nitrogen deposition in northern China through a combination of remote sensing data and atmospheric chemical transport model simulations. (2020-01-06)

Research team finds that microorganisms filter nitrogen from small streams
To understand how nitrogen accumulates in large rivers and oceans miles and miles away, scientists like Walter Dodds looked at small streams flowing closer to home. (2008-03-13)

Nitrogen retained through loss
The nitrogen cycle plays a major role in seagrass fields. Dutch researcher Arie Vonk studied the nitrogen dynamics of seagrasses in Indonesia. He discovered that the interaction between seagrasses, animals and microorganisms results in an efficient nitrogen cycle in tropical seagrass fields. Consequently the nitrogen lost from seagrasses is still retained. (2008-05-22)

Improve crop yield by removing manure solids
Scientists test the effectiveness of removing solids from dairy manure to improve yield by increasing the nitrogen to phosphorus ratio and reducing the loss of nitrogen by hastening soil infiltration. (2011-03-29)

Climate change means more rain, more nitrogen runoff, more problems
An intensifying water cycle will likely cause dramatic increases -- nearing 20% by 2100 -- in the amount of nitrogen runoff in the US, according to a new study. (2017-07-27)

Book looks at interrelationships among nitrogen, plants and the environment
The varied, complex interactions involving nitrogen, plants, and the environment are the focus of a new book co-edited by University of Missouri professor of biochemistry Joseph C. Polacco. (2011-05-02)

RUDN pedologists found out a correct combination of nitrogen fertilizers and plastic mulch
RUDN pedologists studied the combined effect of nitrogen-containing fertilizers and plastic mulching. The efficiency of the procedure turned out to depend on the part of the bed (the furrow or the ridge) that was fertilized. The results of the study were published in the Soil & Tillage Research journal. (2019-01-15)

Radish cover crop traps nitrogen; mystery follows
New research supports the use of radish as a cover crop as a trap crop for fall nitrogen. However, what happens to that nitrogen afterward remains unknown. (2018-05-30)

MSU study finds new microbial source of nitrogen fixation
A team of scientists from Michigan State University has discovered that spirochetes in termite guts are a source of nitrogen fixation, the process that converts the nitrogen in the atmosphere into a form that is used by all life on Earth. (2001-06-28)

Lowering Applications Of Nitrogen Fertilizer Can Boost Profits
Studies on nitrogen fertilizer use on Illinois farms show that seed corn grown in sandy soils does better with a lot less nitrogen, and that too much nitrogen on some fields is accumulating in microorganisms -- not the soil itself (1996-11-07)

Unicellular organisms contribute more nitrogen to ocean that reported earlier
Large, nutrient-poor expanses of the open ocean are getting a substantial nitrogen influx from an abundant group of unicellular organisms that (2004-08-25)

Follow the nitrogen to extraterrestrial life
Writing in the Perspectives section of Science magazine, USC researchers argue for parallel water and nitrogen detection programs in planetary probes. (2006-05-04)

Emerging frontiers genomics grant for blue-green bacteria
Working out the genomics of a remarkable blue-green bacterium is the aim of a new $850,000 (2003-12-12)

Faba fix for corn's nitrogen need
Researchers have good news for growers. Farmers raising a nitrogen-hungry crop like sweet corn may save up to half of their nitrogen fertilizer cost. The key: using a faba bean cover crop. (2018-04-11)

Nitrogen research shows how some plants invade, take over others
University of Nebraska-Lincoln research shows how plants gain nitrogen and how this allows some species to invade and take over native plants. (2009-07-06)

U of M researchers suggest complex relationship between phosphorus levels and nitrogen removal in lakes
In the land of 10,000 lakes, one lake has been the starting place for research with implications for big lakes around the world. According to a study published online this week in Science, University of Minnesota researchers, building from studies of nitrogen levels in Lake Superior, uncovered a good news/bad news scenario for lake health that has long-term, global implications for pollution control efforts. (2013-10-10)

Scientists reveal impacts of anthropogenic nitrogen discharge on nitrogen transport in global rivers
Scientists found that riverine dissolved inorganic nitrogen in the USA has increased primarily due to the use of nitrogen fertilizers. In contrast, European rivers were affected mainly by point source pollution. However, both aspects are equally important for aquatic environments in China. (2019-02-22)

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