Navigation Links
Is it organic or not?
Date:2/1/2008

MADISON, WI, January 28, 2008 -- As organic farming becomes more common, methods to identify fraud in the industry are increasingly important. In a recent study in Journal of Environmental Quality, scientists successfully use nitrogen isotopic discrimination to determine if non-organic, synthetic fertilizers were used on sweet pepper plants.

Scientists at the Instituto Murciano de Investigacin y Desarrollo Agrario y Agrario y Alimentario (IMIDA) jointly with the Instituto de Agrobiotecnologa (UPNA-CSIC), in Spain, investigated the use of isotopic discrimination in organic crops to detect if chemical N fertilizers were added, in a study funded by the Fundacin Sneca de la Regin de Murcia. Specifically, they measured 15N-abundance variations in sweet pepper plants with three common manures, with or without the addition of chemical fertilizers during the crop cycle.

Results from the study were published in the January-February issue of the Journal of Environmental Quality. The research was also presented in Naples, Italy, at the GreenSys2007 Symposium of the International Society for Horticultural Science in October 2007.

Francisco del Amor, who conducted the study, said that isotopic discrimination has demonstrated that we can successfully identify fraud if synthetic N fertilizers are used in the organic production of sweet peppers; however, further studies including the effects of different soil characteristics, climate, and biotic or abiotic stress could be useful in determining the proper interval of 15N-values to exclude non-organic fertilization practices for certification policies.

15N abundance in the atmosphere, the largest N reserve in the world, remains constant around the planet. However, several physical, chemical, and biological processes and reactions implicated in the synthesis and transformation of organic compounds present different affinities for 15N or 14N isotopes. Due to this discrimination, products
'/>"/>

Contact: Sara Uttech
suttech@agronomy.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study reveals that nitrogen fertilizers deplete soil organic carbon
2. Surprise in the organic orchard -- a healthier worm in the apple
3. New microsensor measures volatile organic compounds in water and air on-site
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... that can be found in both unprocessed and processed ... Denmark have been infected with Listeria from ... The bacterium is notoriously difficult to fight because it ... in its surroundings, says Associate Professor Birgitte Kallipolitis, University ... of Biochemistry and Molecular Biology, she has published a ...
(Date:8/26/2014)... at Washington University in St. Louis have developed algorithms ... prone to tearing or breaking. The technology, which needs ... one day may help pinpoint minor strains and tiny ... occur. , The research is available online Aug. 27 ... , which publishes research at the nexus of the ...
(Date:8/26/2014)... obtaining an unprecedented view of a type of ... of neurological illnesses, including Alzheimer,s disease, Parkinson,s disease, ... stroke. , The team of biologists at Cold ... Energy,s Advanced Photon Source at Argonne National Laboratory ... NMDA (N-methyl, D-aspartate) receptor should serve as template ...
Breaking Biology News(10 mins):Researchers discover why Listeria bacterium is so hard to fight 2Researchers discover why Listeria bacterium is so hard to fight 3New technology may identify tiny strains in body tissues before injuries occur 2New technology may identify tiny strains in body tissues before injuries occur 3Unprecedented detail of intact neuronal receptor offers blueprint for drug developers 2Unprecedented detail of intact neuronal receptor offers blueprint for drug developers 3
... Scientists have joined forces in a groundbreaking assessment of the ... Fulton, a fishery ecosystem scientist from the CSIRO Wealth from ... of a report on a two-year study, led by US ... Hilborn of the University of Washington. The study shows ...
... noticed -- but the head shape and overall size of ... of Illinois at Chicago ecologist has tied these changes to ... reported by Oliver Pergams, UIC research assistant professor of biological ... . Pergams said that such size-and-shape changes in mammals, ...
... the way for the first ever use in Europe of ... Britain. University of Leicester biologists established that the Japanese ... world- a clone of cuttings brought into Britain in the ... at 1.5 billion. Defra,s Food and Environment Research Agency ...
Cached Biology News:Global curbs on overfishing are beginning to work 2Rodent size linked to human population and climate change 2Leicester research paves way for first use in Europe of an insect to fight invasive plant 2Leicester research paves way for first use in Europe of an insect to fight invasive plant 3
(Date:8/27/2014)... Aug. 27, 2014  ARCH Venture Partners, one ... in the development of seed and early-stage advanced ... fund closed with more than $400 million in ... million subscription target by more than $150 million. ... the strength and potential of our approach to ...
(Date:8/27/2014)... August 27, 2014 After the boom ... that the next beverage craze is going to be ... that formulators can use Stress Relief energy pattern which ... the making of a beverage, including minerals, herbs and ... energy, channeling that power into rapid recovery and helping ...
(Date:8/27/2014)... Budding Biomedical Scientists , This ... participated in the Scientific Enrichment and Opportunity ... of Medicine . , The rigorous ... experience in the sciences and brings them in ... students for both academic and career mentoring. , ...
(Date:8/26/2014)... An analysis by Replikins, Ltd. of Pubmed data of ... virus strains has revealed extensive conservation and sharing of ... sharing of specific Replikin gene structures has permitted the ... did for the H5N1 influenza vaccine and the Taura ... to be effective (1,2). This ...
Breaking Biology Technology:Latest ARCH Venture Partners Fund Closes Above $400 Million 2Latest ARCH Venture Partners Fund Closes Above $400 Million 3Stress Relief: 1 Way to De-Stress Your Beverage Formula 2Stress Relief: 1 Way to De-Stress Your Beverage Formula 3Stress Relief: 1 Way to De-Stress Your Beverage Formula 4Students at Cleveland's University School Conduct Biomedical Research at Case Western Reserve University’s School of Medicine 2
... ... ... ... ...
... ... Promotion & Biodiesel (CJP) is happy to announce the 5 Days Global Jatropha ... the privilege to provide most authoritative Knowledge platform known as Global Jatropha Hi-Tech ... and Priorities to Feed Biodiesel Industry Worldwide. , ...
... ... ... , , , , ... ...
Cached Biology Technology:Transgenomic Licenses IP From IntegraGen to Develop Genetic Test for Autism 2Transgenomic Licenses IP From IntegraGen to Develop Genetic Test for Autism 3Transgenomic Licenses IP From IntegraGen to Develop Genetic Test for Autism 4Transgenomic Licenses IP From IntegraGen to Develop Genetic Test for Autism 5Transgenomic Licenses IP From IntegraGen to Develop Genetic Test for Autism 6CJP Announces 5 Days Global Jatropha Hi-Tech Agricultural Training Programme in India from SEPTEMBER 20-24, 2010 2CJP Announces 5 Days Global Jatropha Hi-Tech Agricultural Training Programme in India from SEPTEMBER 20-24, 2010 3CJP Announces 5 Days Global Jatropha Hi-Tech Agricultural Training Programme in India from SEPTEMBER 20-24, 2010 4CJP Announces 5 Days Global Jatropha Hi-Tech Agricultural Training Programme in India from SEPTEMBER 20-24, 2010 5Amsterdam Molecular Therapeutics Reports Full Year Results 2009 2Amsterdam Molecular Therapeutics Reports Full Year Results 2009 3Amsterdam Molecular Therapeutics Reports Full Year Results 2009 4Amsterdam Molecular Therapeutics Reports Full Year Results 2009 5Amsterdam Molecular Therapeutics Reports Full Year Results 2009 6Amsterdam Molecular Therapeutics Reports Full Year Results 2009 7Amsterdam Molecular Therapeutics Reports Full Year Results 2009 8Amsterdam Molecular Therapeutics Reports Full Year Results 2009 9
Human endothelial progenitor cells, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Dendritic Cells and EPCs...
Plasmacytoid dendritic cells, BDCA-4+, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Dendritic Cells...
...
...
Biology Products: