Navigation Links
Nitrogen fertilizer remains in soils and leaks towards groundwater for decades, researchers find
Date:10/21/2013

Nitrogen fertilizer applied to crops lingers in the soil and leaks out as nitrate for decades towards groundwater "much longer than previously thought," scientists in France and at the University of Calgary say in a new study.

Thirty years after synthetic nitrogen (N) fertilizer had been applied to crops in 1982, about 15 per cent of the fertilizer N still remained in soil organic matter, the scientists found.

After three decades, approximately 10 per cent of the fertilizer N had seeped through the soil towards the groundwater and will continue to leak in low amounts for at least another 50 years.

The study was led by researcher Mathieu Sebilo at the Universit Pierre et Marie Currie in Paris, France, and by Bernhard Mayer in the U of C's Department of Geoscience, and included several research organizations in France.

Their paper, "Long-term fate of nitrate fertilizer in agricultural soils," was published this week in the Proceedings of the National Academy of Sciences of the United States of America.

The findings show that losses of fertilizer N towards the groundwater occur at low rates but over many decades, says Mayer, U of C professor of geochemistry and head of the Applied Geochemistry Group.

That means it could take longer than previously thought to reduce nitrate contamination in groundwater, including in aquifers that supply drinking water in North America and elsewhere, he says.

"There's a lot of fertilizer nitrogen that has accumulated in agricultural soils over the last few decades which will continue to leak as nitrate towards groundwater," Mayer says.

Canada and the U.S. regulate the amount of nitrate allowed in drinking water. In the 1980s, surveys by the U.S. Environmental Protection Agency and the U.S. Geological Survey showed that nitrate contamination had probably impacted more public and domestic water supply wells in the U.S. than any other contaminant.


'/>"/>
Contact: Marie-Helene Thibeault
m.thibeault@ucalgary.ca
403-679-8447
University of Calgary
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Microbes capture, store, and release nitrogen to feed reef-building coral
2. Nitrogen has key role in estimating CO2 emissions from land use change
3. Global nitrogen availability consistent for past 500 years, linked to carbon levels
4. Nitrogen from pollution, natural sources causes growth of toxic algae, study finds
5. Lower nitrogen losses with perennial biofuel crops
6. Researchers to study impacts of pollutant nitrogen on plant species diversity
7. How much nitrogen is fixed in the ocean?
8. Scientists develop new carbon accounting method to reduce farmers use of nitrogen fertilizer
9. Nitrogen pollution changing Rocky Mountain National Park vegetation, says CU-Boulder-led study
10. Modern hybrid corn makes better use of nitrogen, study shows
11. Vetch cover crop, fertilizer practices recommended for organic zucchini
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nitrogen fertilizer remains in soils and leaks towards groundwater for decades, researchers find
(Date:12/19/2014)... , Dec. 18, 2014  23andMe, Inc., the leading ... study that pinpoints fine-scale differences in genetic ancestry of ... . Since immigrants first arrived more than ... has served as a meeting place for ... history and the ongoing mixing of peoples with African, ...
(Date:12/17/2014)... Va. , Dec. 15, 2014 ... to make it easier to detect and prevent ... Today the agency started performing an ... capability will validate the authenticity of purchased microcircuits ... The new quality control measures will be conducted ...
(Date:12/17/2014)... , Dec. 16, 2014 Research and ... the addition of the "Global Chemical Sensor ... http://photos.prnewswire.com/prnh/20130307/600769 ... the increasing demand for medical sensors in biomedical ... data for quick and correct diagnosis during surgical ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2
... year the American Institute of Biological Sciences (AIBS) ... to the biological sciences. Since 1972, AIBS ... individuals who have made significant scientific contributions to ... integrative and organismal biology. The award is ...
... Barack Obama and Energy Secretary Steve Chu are consistent ... fuels, carbon-neutral biofuels as an alternative to gasoline are ... to biofuels has been on global warming, such a ... the Energy Biosciences Institute (EBI) has produced a novel ...
... Spanish . , In the context of the ... light on global warming are of great interest. That is ... of solid or liquid particles on a gaseous environment that ... Juan Luis Guerrero Rascado developed his doctoral ...
Cached Biology News:Two Central High (Philadelphia) grads honored by AIBS 2The coming of biofuels: Study shows reducing gasoline emissions will benefit human health 2The coming of biofuels: Study shows reducing gasoline emissions will benefit human health 3The coming of biofuels: Study shows reducing gasoline emissions will benefit human health 4A research work will be the reference to characterize the climatic impact of desert dust 2
(Date:12/19/2014)... MA (PRWEB) December 18, 2014 iLab ... announced the appointment of Siri Bryant as the new ... new Director of Core Implementations. These two new leadership ... outstanding customer service by ensuring that iLab continues to ... “In the last four years, iLab has been deployed ...
(Date:12/19/2014)... BURLINGTON, Mass. , Dec. 18, 2014  Decision ... dental biomaterial market will grow moderately through ... implant procedures and growing awareness of dental biomaterials all ... underdeveloped markets such as China ... incomes will bring dental procedures within reach for a ...
(Date:12/17/2014)... (PRWEB) December 16, 2014 The ... since 2013, which is why IBISWorld updated its original ... continues to benefit from an intensified focus on environmental ... for new emission standards for power plants and a ... According to IBISWorld Industry Analyst Sarah Kahn, “a range ...
(Date:12/17/2014)... N.J. (PRWEB) December 17, 2014 ... (Euronext: IPN; ADR: IPSEY), today announced ... (referred to as Somatuline®) was approved by the ... treatment of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) in adult ... advanced or metastatic disease to improve progression-free survival ...
Breaking Biology Technology:iLab Solutions Announces Two New Leadership Positions to Meet the Needs of Its Growing Customer Base 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 2Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 8
... YORK, Feb. 23 NeoStem, Inc. (NYSE Alternext ... processing and long-term storage of adult stem cells ... signed a license agreement to obtain the exclusive ... applications for cosmetic facial and body procedures and ...
... Pa. and SHANGHAI, Feb. 23 Frontage Laboratories ... bioanalytical, pre-clinical, clinical and drug development services to ... has expanded its research and development agreement with ... Beijing Pharmaceutical Group ("Beijing Pharma"), to accelerate Beijing ...
... (Amex: ETC ) ("ETC" or the "Company") ... equipped to satisfy the requirements of Electronic Medical Records ... University on January 8, 2009, then President-Elect Barack ... care while lowering its costs, we will make the ...
Cached Biology Technology:NeoStem Obtains Exclusive Worldwide License to Innovative Stem Cell Technology and Applications for Anti-Aging Skin Rejuvenation Therapies 2NeoStem Obtains Exclusive Worldwide License to Innovative Stem Cell Technology and Applications for Anti-Aging Skin Rejuvenation Therapies 3Frontage Laboratories Continues to Grow Its China Business and Add Corporate Financial, Regulatory and Clinical Pharmacology Talent 2Frontage Laboratories Continues to Grow Its China Business and Add Corporate Financial, Regulatory and Clinical Pharmacology Talent 3Frontage Laboratories Continues to Grow Its China Business and Add Corporate Financial, Regulatory and Clinical Pharmacology Talent 4Environmental Tectonics Corporation's BioMedical Division's Hyperbaric Chambers Address U.S. President Obama's Initiative to Computerize Medical Records 2Environmental Tectonics Corporation's BioMedical Division's Hyperbaric Chambers Address U.S. President Obama's Initiative to Computerize Medical Records 3Environmental Tectonics Corporation's BioMedical Division's Hyperbaric Chambers Address U.S. President Obama's Initiative to Computerize Medical Records 4
GRADIENT MAKER, 30 ML, 1 EA. Category: Protein Vertical Instruments....
Recombinant Rat Leptin, CF...
actin from rabbit muscle Cell Biology Cytoskeletal Probes Actin and Actin Probes...
...
Biology Products: