Navigation Links
Overfertilizing corn undermines ethanol
Date:2/25/2011

ave a clear incentive to maximize grain yields, the research shows a path to even greater benefits when corn residues are harvested for cellulosic ethanol production, she said.

The study, conducted at and in collaboration with the National Science Foundation's W.K. Kellogg Biological Station at Michigan State University (MSU), showed that although feeding the plant more fertilizer increases the grain's cellulose content, grain yield quickly hits a plateau. "The kilograms of grain you get per hectare goes up pretty fast and peaks," Masiello said. At the same time, the researchers found only a modest increase in plant and stem cellulose, the basic component used to produce cellulosic ethanol.

"The implicit assumption has always been that the response of plant cellulose to fertilizer is going to be the same as the grain response, but we've showed this assumption may not always hold, at least for corn," Gallagher said.

Nitrogen fertilization encourages production of lignin within the plant, and without lignin, stalks won't stand. Lignin production comes at the expense of useful cellulose production. The researchers found that lignin yields from plant residue increased at nearly twice the rate as cellulose in response to nitrogen fertilization, and they said this implies "that residue feedstock quality declines as more nitrogen fertilizer is applied."

Lignin breaks down slowly via bacterial enzymes, and it is expensive to remove by chemical or mechanical processes that create a bottleneck in cellulosic ethanol production. "The ideal cellulosic ethanol crop has no lignin -- except you can't have a plant without it, because it would fall over. Plants need some lignin to maintain structure," said co-author Bill Hockaday, a former Rice postdoctoral researcher and now an assistant professor at Baylor University. "What we want is a low lignin-to-cellulose ratio."

Reducing fertilizer to the bare-bones minimum serves that purpose. "
'/>"/>

Contact: David Ruth
druth@rice.edu
713-348-6327
Rice University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Microbiologists at TU Muenchen aim to optimize bio-ethanol production
2. Biofuel grasslands better for birds than ethanol staple corn, researchers find
3. Grasses have potential as alternate ethanol crop, Illinois study finds
4. Neutrons helping ORNL researchers unlock secrets to cheaper ethanol
5. Calculating crop and ethanol yields and irrigation needs in 4 easy steps
6. Cellulosic ethanol: Expanding options, identifying obstacles
7. More maize ethanol may boost greenhouse gas emissions
8. Orange peels, newspapers may lead to cheaper, cleaner ethanol fuel
9. Ethanol-powered vehicles generate more ozone than gas-powered ones
10. Delft breakthrough in bioethanol production from agricultural waste
11. Flax and yellow flowers can produce bioethanol
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... to purchase fuel cell cars from Toyota and other ... cars will run on hydrogen made from natural gas, ... Now scientists at Stanford University have developed a low-cost, ... produce hydrogen by water electrolysis. The battery sends ... water into hydrogen and oxygen gas. Unlike other water ...
(Date:8/21/2014)... BLOOMINGTON, Ind. -- A new study of American ... partner, men have the highest orgasm rates. On ... time, with their sexual orientation making little difference. ... On average, women experience orgasm 62.9 percent of ... -- and this pattern varies with women,s sexual ...
(Date:8/21/2014)... to dandruff, eczema and other itchy, flaky maladies in ... reachesincluding Hawaiian coral reefs and the extreme environments of ... in the scientific journal PLOS Pathogens considers ... the genus Malassezia in light of new ... the world. , University of Hawai,i at Mānoa scientist ...
Breaking Biology News(10 mins):Stanford scientists develop a water splitter that runs on an ordinary AAA battery 2Stanford scientists develop a water splitter that runs on an ordinary AAA battery 3Orgasm rates for single women less predictable than men's, vary by sexual orientation 2Orgasm rates for single women less predictable than men's, vary by sexual orientation 3Orgasm rates for single women less predictable than men's, vary by sexual orientation 4From dandruff to deep sea vents, an ecologically hyper-diverse fungus 2
... Athene Donald has won the Science and Technology award ... honor to Professor Donald, Glamour magazine praised her as a ... real path for herself in the male-dominated world of physics." ... Physics at the University of Cambridge in the United Kingdom ...
... CAA researcher at Charles Drew University of Medicine and Science ... a promising, natural therapy for cancer. Dr. Mamdooh Ghoneum ... on "Cell Death Mechanism," sponsored by the American Association for ... San Diego. "The central focus of the meeting ...
... RIVERSIDE, Calif. Stem cell research at the University of ... establishment of a new Stem Cell Core Facility (SCCF) ... doing stem cell research that ordinarily would not be available ... Noel Keen Hall, had its grand opening on Friday, Jan. ...
Cached Biology News:Charles Drew cancer studies with yeast yield excellent results 2UC Riverside's new state-of-the-art technology to accelerate stem cell research 2
(Date:8/21/2014)... 21, 2014  Decision Resources Group finds that ... and Mexico currently ... newly approved agents, the anticipated label extension of ... launch of emerging biologics will substantially increase the ... emerging IL-5 inhibitors will introduce a new dynamic to ...
(Date:8/21/2014)...  China Cord Blood Corporation (NYSE: CO ... financial results for the first quarter of fiscal year ... in the US.  The Company will ... Friday, August 29, 2014 to discuss its financial performance ... developments, followed by a question and answer session.  Interested ...
(Date:8/21/2014)... (PRWEB) August 21, 2014 Ontotext ... today by Ontotext . Now the same ... analysis of structured and unstructured data is available to ... cost of enterprise technology. Organizations that do not have ... data management can use S4 since there is no ...
(Date:8/21/2014)... On Wednesday of last week RENU 28, the world's ... became available for purchase in Australia and New Zealand, and ... 28 works is, if you think about the definition of ... cellular renewal within your body. If you think about the ... cellular renewal. What RENU 28 does is it works with ...
Breaking Biology Technology:Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3China Cord Blood Corporation to Report First Quarter of Fiscal 2015 Financial Results 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4RENU 28 Skin Care Now Available in Australia and New Zealand 2
... , SEATTLE, Dec. 6 A challenge donation from the ... total to more than $7 million for Fred Hutchinson Cancer Research ... during which guests raise their bid cards for specific contribution levels, ... work to harness the human immune system to battle cancer. ...
... , NEW YORK, Dec. 4 Stemline Therapeutics, Inc. ... agents, SL-401 and SL-501, in both in vitro and ... for poster presentation at the upcoming 51st Annual Meeting of the ... from December 5-8, 2009. The poster will be presented by Stemline,s ...
... Dec. 3 VIA Pharmaceuticals, Inc. (Nasdaq: VIAP ), ... the treatment of cardiovascular and metabolic disease, today announced that ... 2 FDG-PET clinical trial of VIA-2291. , The FDG-PET ... sites in the US and Canada including Massachusetts General Hospital, ...
Cached Biology Technology:34th Annual Hutch Holiday Gala Raises More Than $7 Million For Cancer Research 234th Annual Hutch Holiday Gala Raises More Than $7 Million For Cancer Research 3Stemline Therapeutics Announces Poster Presenting in vivo and Anti-Cancer Stem Cell Activity of SL-401 against Chronic Myeloid Leukemia (CML) at the 51st Annual Meeting of the American Society of Hematology (ASH) 2VIA Pharmaceuticals Completes Patient Visits in Phase 2 Trial of VIA-2291 2VIA Pharmaceuticals Completes Patient Visits in Phase 2 Trial of VIA-2291 3VIA Pharmaceuticals Completes Patient Visits in Phase 2 Trial of VIA-2291 4
... offers a full length insert sequencing service ... cosmids and fosmids. Agencourt utilizes unique ... libraries. There are several features that ... data with rapid turnaround including our patented ...
...
... Cytometry The Guava EasyCyte system is ... multiparameter cytometer with built-in 96-well microplate sampling ... plates of cells and compounds quickly and ... tubes or having the carryover issues found ...
A flexible 24-48 hour DNA sequencing service. Samples may be shipped in standard 1.5mL tubes. Oligo synthesis and DNA preparation available. Read lengths up to 850 Phred 20 bases. Universal primers p...
Biology Products: