Navigation Links
Limited biofuel feedstock supply?
Date:11/28/2007

The United States has embarked on an ambitious program to develop technology and infrastructure to economically and sustainably produce ethanol from biomass. Corn stover, the above-ground material left in fields after corn grain harvest, has been identified as a primary feedstock. Stover and other crop biomass or residue is frequently referred to as "trash" or a waste, implying it has minimal value. However, when returned to the land, this carbon-rich material helps control erosion, replenishes soil organic matter, and improves soil quality. Organic matter in the soil retains and recycles nutrients and improves soil structure, aeration, and water exchange characteristics. In addition, organic matter is the energy source for the soil ecosystem.

"Sustainable biofuel production will require that the functions of organic matter in the soil be addressed before crop residue is removed from the land," states Doug Karlen, USDA-ARS soil scientist at the National Soil Tilth Laboratory at Ames, IA.

Dave Lightle, USDA-NRCS agronomist with the National Soil Survey Center in Lincoln, NE says, "To date, projected sustainable harvest levels have been calculated by reducing total stover production by amounts needed to keep soil erosion losses within accepted limits."

Most estimates of the amount of crop residue that can be sustainably harvested consider only erosion as a constraining factor, without considering the need to maintain soil organic matter. Recently Jane Johnson and her coworkers at the USDA-ARS North Central Soil Conservation Research Laboratory at Morris, MN, reported estimates of the minimum biomass input needed to maintain soil organic matter.

Wally Wilhelm, USDA-ARS scientist with the Agroecosystems Management Research Unit, Lincoln, NE, and his team compared the amount of stover needed to replenish soil organic matter and control water and wind erosion under a limited number of production conditionscontinuous corn and co
'/>"/>

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

Page: 1 2

Related biology news :

1. New study warns limited carbon market puts 20 percent of tropical forest at risk
2. UCI and CODA Genomics collaborate to re-engineer yeast for biofuel production
3. To maximize biofuel potential, researchers look for sorghums sweet spot
4. Ceres and Texas A&M to develop and market high-biomass sorghum for biofuels
5. If corn is biofuels king, tropical maize may be emperor
6. The race for biofuels driving alternative sources of biomass
7. CAST rolls out biofuel commentaries in New Orleans
8. Arizona State University launches biofuel initiative with BP and Science Foundation Arizona
9. Cornell will host the Northeast Biofuel Summit, Nov. 11-13
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... one of the amphibians with the highest distribution in ... of water where it comes into contact with the ... carried out by the Spaniard Germn Orizaola from the ... these frogs have developed a defensive response to the ... bodies if they co-exist with the crayfish. , Numerous ...
(Date:7/9/2014)... function and increase the survival rate of naturally ... School of Pharmaceutical Sciences, Southwest University, China performed ... administered with low dose of levothyroxine for 3 ... exhibited an obvious improvement in cognitive and an ... The underlying mechanism was demonstrated that levothyroxine treatment ...
(Date:7/9/2014)... vitamin D in their blood are more likely to survive ... highest levels of vitamin D have half the risk of ... reveal. , The study is the first to correlate total ... their diagnosis which includes that produced after exposure to ... long term survival prospects. , The University of Edinburgh ...
Breaking Biology News(10 mins):Frogs have developed rapid defences against the red swamp crayfish 2Frogs have developed rapid defences against the red swamp crayfish 3
... is helping to reduce the drug cravings of addicted rats. ... some parts of the brain lose glutamate receptors from the ... neurons. The researchers have sidestepped this problem by crafting a ... glutamate receptor and, once inside a neuron, serves as a ...
... discovered in tiny snow fleas by Queen's University researchers ... transplantation. , Drs. Laurie Graham and Peter Davies, from ... produced by the fleas to protect themselves against freezing ... Celsius degrees. This would allow organs to be stored ...
... zebrafish may be able to play a critical role in ... that can lead to it - and identified one gene ... , The findings were published in a professional journal, Proceedings ... State University and two Boston hospitals, the Brigham and Women's ...
Cached Biology News:Grabbing addiction by the tail 2Grabbing addiction by the tail 3New antifreeze protein found in fleas may allow longer storage of transplant organs 2Zebrafish may hold key to improved cancer research 2Zebrafish may hold key to improved cancer research 3
(Date:1/15/2014)... , Using an approach akin to assembling a ... Standards and Technology (NIST) researchers have succeeded in ... reduces the flammability of foam commonly used in ... flammability of the nanotube-coated polyurethane foam was reduced ...
(Date:1/15/2014)... laureate Herbert Kroemer famously observed, referring to the ... where layers of different materials meet. In today,s ... of metal oxides are becoming increasingly prominent, with ... superconductors, ferroelectrics and multiferroics. Realizing the vast potential ...
(Date:1/15/2014)... Jacobs Automotive, a group of car dealerships headquartered in ... Blood Center and offering free oil change coupons for participation ... Jan. 18 at the Bill Jacobs Cadillac and Chevrolet location ... http://photos.prnewswire.com/prnh/20140115/MN46637 )  The Bill Jacobs Auto annual ...
(Date:1/15/2014)... 2014 The Pittcon Organizing Committee is pleased ... Safety Tech , an e-Journal and producer of ... the second year for the co-location of Food Labs Conference ... provides that the registration fee to attend the two-day Food ...
Breaking Biology Technology:Layered security: Carbon nanotubes promise improved flame-resistant coating 2A deeper look at interfaces 2Join the Bill Jacobs Auto blood drive and receive a free oil change 2Pittcon Announces Second Year Partnership With Food Safety Tech 2Pittcon Announces Second Year Partnership With Food Safety Tech 3
... 9 The results of a new study on immune-based ... sites around the country, will be published in the December ... MD, MS, director of the Butler Hospital Memory and Aging ... Warren Alpert Medical School of Brown University, says that this ...
... , , QUEBEC CITY, Dec. 9 /PRNewswire-FirstCall/ ... AEZ) (the "Company"), a global biopharmaceutical company focused on ... appointment of Pierre Lapalme to its Board of Directors. ... has over the course of his career held numerous ...
... , OXFORD, England, December ... Recent Recruitment of Senior Antibody Industry,Leaders and Highlights OBT,s Growth ... Oxford BioTherapeutics (OBT) has today announced the appointment of ... experience to OBT at an exciting phase in the Company,s,development, ...
Cached Biology Technology:Butler Hospital Neurologist Lead Author of Ground Breaking Bio-Engineered Treatment Study for Alzheimer's Disease 2AEterna Zentaris Announces Appointment of New Board Member 2Oxford BioTherapeutics Appoints Michael Moore as Chairman 2Oxford BioTherapeutics Appoints Michael Moore as Chairman 3Oxford BioTherapeutics Appoints Michael Moore as Chairman 4
Rab 3 Immunogen: Synthetic peptide corresponding to the N-terminal region of Rab 3 protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
...
Mouse monoclonal [2G1] to Vancomycin ( Abpromise for all tested applications)....
Rab1A...
Biology Products: