Navigation Links
Fertilizer use responsible for increase in nitrous oxide in atmosphere
Date:4/2/2012

rporate nitrogen-14 (14N), the most common isotope, instead of nitrogen-15 (15N).

"Microbes on a spa weekend can afford to discriminate against nitrogen-15, so the fingerprint of N2O from a fertilized field is a greater proportion of nitrogen-14," Boering said. "Our study is the first to show empirically from the data at hand alone that the nitrogen isotope ratio in the atmosphere and how it has changed over time is a fingerprint of fertilizer use."

Just as telling is the isotope ratio of the central nitrogen atom in the N-N-O molecule. By measuring the nitrogen isotope ratio overall, the isotope ratio in the central nitrogen atom, and contrasting these with the oxygen-18/oxygen-16 isotope ratio, which has not changed over the past 65 years, they were able to paint a consistent picture pointing at fertilizer as the major source of increased atmospheric N2O .

The isotope ratios also revealed that fertilizer use has caused a shift in the way soil microbes produce N2O. The relative output of bacteria that produce N2O by nitrification grew from 13 to 23 percent worldwide, while the relative output of bacteria that produce N2O by denitrification typically in the absence of oxygen dropped from 87 to 77 percent. Although the numbers themselves are uncertain, these are the first numerical estimates of these global trends over time, made possible by the unique archived air dataset of this study.


'/>"/>
Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. National Science Foundation supports research aimed at reducing the use of fertilizer
2. Nitrogen fertilizers impact on lawn soils
3. 400,000 farmers in southern Africa using fertilizer trees to improve food security
4. Chicken litter provides organic alternative to synthetic fertilizers
5. High nitrogen fertilizers tested on post-transplant ornamentals
6. Charcoal biofilter cleans up fertilizer waste gases
7. Fertilizer chemicals linked to animal developmental woes
8. Discovery in legumes could reduce fertilizer use, aid environment: Stanford researchers
9. Fertilizer use not always helpful in revegetation efforts
10. Sustainable fertilizer: Urine and wood ash produce large harvest
11. Water quality improves after lawn fertilizer ban, study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/20/2015)... , Mar. 20, 2015 Research and ... the addition of the "India Sensors Market ... offering. The sensor market is projected ... 2020 Consumer electronics, automotive, industrial and ... sensors in the country. In addition, adoption of ...
(Date:3/18/2015)... 2015 As mobile payments become more ... wallets and apps continue to be introduced into the market ... mobile payment industry in focus today are:  NXT-ID, Inc. (NASDAQ: ... BABA ), Apple Inc. (NASDAQ: AAPL ), ... (NASDAQ: FB ) NXT-ID, Inc. (NASDAQ: ...
(Date:3/12/2015)... Va. , March 12, 2015 IriTech, ... and a member of the Texas Instruments Design Network, ... Naidu has demonstrated its IriShield USB MK2120U device ... scanning facility for pension distribution. The ... assembled to be marketed in India ...
Breaking Biology News(10 mins):India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6Indian States See IriTech's Scanner Bolstering Efficiency of Authentication for Aadhaar 2Indian States See IriTech's Scanner Bolstering Efficiency of Authentication for Aadhaar 3
... UCL scientists have found a protein that could unlock the ... TB bacteria in the body. Once the TB bacteria are ... antibiotics. Scientists believe that uncovering the molecular structure of this ... treatment of dormant and multidrug resistant TB. , In England ...
... Researchers have discovered a way to make,light sensitive cells ... to research published online today in Nature, the team ... that activating the melanopsin gene in the nerve cells,causes ... cells, the researchers found that melanopsin could be used ...
... year ago, Massachusetts General Hospital (MGH) researchers discovered ... adult stem cells that could regenerate the insulin-producing ... unexpected finding, members of the,same team now report ... previously believed to be present only during the ...
Cached Biology News:Researchers discover way to make cells in the eye sensitive to light 2Spleen may be source of versatile stem cells 2Spleen may be source of versatile stem cells 3
(Date:3/26/2015)... 2015 "In America," the popular news television ... that is hosted by legendary film actor James Earl Jones, ... in an upcoming segment. , Botany is commonly described ... is actually quite a bit more complicated than that. Scientists ... of living organisms, from the smallest bacteria known to man ...
(Date:3/25/2015)... is one of the most attractive in the emerging ... a growing economy and increasing government investment in healthcare, ... Russian market is set to grow at twice the ... around 10-15% annually reaching an approximate market value of ... Green Cross provides total healthcare solutions that ...
(Date:3/25/2015)... 25, 2015 Optimal Research, LLC has been ... (ViE) Award "Best Clinical Site or Trial Network". ... has been selected as a nominee in this ViE ... "Highly Recommended" distinction in 2014. The ViE awards were ... accomplishments, and positive contributions of companies and individuals in ...
(Date:3/25/2015)... 25, 2015 Laboratory workers can ... and Analytical Balances to get best-performing features while ... weighing balances from the trusted brand include: , ... increase your efficiency by providing a large weighing ... Weighing modes include parts counting, percent weighing, checkweighing, ...
Breaking Biology Technology:Optimal Research Nominated 2015 Vaccine Industry Excellence (ViE) Award 2New Economical Top-Loading and Analytical Symmetry Balances from Cole-Parmer 2
... WallSt.net,s 3-Minute Press Show is,a daily video program ... air Monday through Friday on:, http://tv.wallst.net/3-min-press/3-min-press.php ... interviews with,public company executives on their company and ... provide viewers with insight into a company,s most,recent ...
... Arpida Ltd.,(SWX: ARPN) today announced that it ... 2008 at 8.30am CET. In this conference call, ... developments in the area of anti-infective,drugs as well ... the Anti-Infective,Drugs Advisory Committee. During that meeting, the ...
... company Kiadis,Pharma announced today that the U.S. ... product Rhitol(TM) Orphan Drug Designation for the ... This complication of allogeneic,bone marrow transplantation is ... the patient is unresponsive to steroid treatment.,Rhitol(TM) ...
Cached Biology Technology:Featured Stocks on Today's Edition of WallSt.net's 3-Minute Press Show: NPHC, PECD, PNRR 2Featured Stocks on Today's Edition of WallSt.net's 3-Minute Press Show: NPHC, PECD, PNRR 3Arpida Announces Conference Call on 17 April 2Arpida Announces Conference Call on 17 April 3Kiadis Pharma Receives Orphan Drug Designation for Rhitol(TM) From the FDA 2
Abgene's ALTO-8 is the first automated decapper/capper for Abgene Twist-Lock tubes....
... The FastPrep System combines 2 products into ... , A molecular isolation kit , ... homogenizer machine and Qbiogene/BIO101 System Matrix and ... in individual micro tubes eliminating the use ...
... Jouan B4i ventilated and BR4i refrigerated multifunction centrifuges ... speed operation at a low sound level with ... for biocontainment. Their AUTO-LOCK rotor exchange system without ... for use within seconds. Instant rotor ...
... Blood bank refrigerators: ,Each ... recovery and superior 4C temperature uniformity for ... the HemaPro 2000 Surveillance Module for complete ... and BBR37 are equipped with the HemaPro ...
Biology Products: