Navigation Links
Ethanol production could jeopardize soil productivity
Date:6/2/2009

MADISON, WI, June 1, 2009 -- There is growing interest in using crop residues as the feedstock of choice for the production of cellulosic-based ethanol because of the more favorable energy output relative to grain-based ethanol. This would also help provide a solution to the debate of food versus fuel, because less of the grain would be diverted to ethanol production, leaving more available for food and feed consumption.

Crop residues are viewed as a low cost and readily available source of material since more than 50% of crop production is residues. However, crop residues should not be considered simply a waste or benign material. They possess a critical role in sustaining soil organic matter. Consequently, extensive removal of crop residues for ethanol productionor for other industrial purposesmay impact the long-term productivity of soils.

Agriculture and Agri-Food Canada scientists at the Indian Head Research Farm in Indian Head and the Semiarid Prairie Agricultural Research Centre in Swift Current, all located in Saskatchewan (SK), measured the impact of straw removal after 50 years on soil organic carbon (SOC) and soil organic nitrogen (SON) using the Indian Head Long-Term Rotations established in 1958. These rotations included a series of fallowspring wheatspring wheat crop sequences where straw was removed through baling on selected plots. In this study, straw removal with baling occurred 2 years out of 3, or 66% of the time. The study was converted to no-till in 1991.

Another 4-year study was conducted to quantify how much wheat straw is actually removed through baling when different harvesting systems are used. The three harvesting/straw removal systems involved (1) swathing-harvesting-baling, (2) straight harvesting-baling, and (3) harvesting with a stripper header-swathing-baling. Both of these studies were funded by Agriculture and Agri-Food Canada, the Panel on Energy Reduction and Development, and the Indian Head Agricultural Research Foundation.

Results from these studies were published in the MayJune 2009 issue of Agronomy Journal, "Quantifying Straw Removal through Baling and Measuring the Long-Term Impact on Soil Quality and Wheat Production," by G.P. Lafond and others. The results were also presented at the annual meetings of the Indian Head Agricultural Research Foundation held in Moose Jaw, SK, on 27 Jan. 2009 and the Saskatchewan Soils and Crops Workshop on 26 Feb. 2009 in Saskatoon, SK.

Guy Lafond, who was the study leader, says, "The results would support the recommendation that some straw could be removed from fields providing that the frequency of removal was less than 66% and that no more than 40% of the aboveground residues other than grain are removed. From a crop management perspective, proper nitrogen fertility combined with no-till would further reduce the possibility of net losses in SOC and SON."

Research is ongoing at Agriculture and Agri-Food Canada to examine different types of crops for not only their grain and end-use quality but also for their crop residue production and quality. Some crops are being developed as platforms for biomass production.


'/>"/>

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

Related biology news :

1. LSU professors work to improve efficiency of ethanol fuel
2. Increase in ethanol production from corn could significantly impact
3. Can plant-based ethanol save us from our fossil fuel addiction?
4. Trash today, ethanol tomorrow
5. US rush to produce corn-based ethanol will worsen dead zone in Gulf of Mexico: UBC study
6. Fueling ethanol production while protecting water quality
7. Ethanol byproduct produces green results
8. New UGA biomass technology dramatically increases ethanol yield from grasses and yard waste
9. Turning waste material into ethanol
10. Patience pays off with methanol for uranium bioremediation
11. Study critiques corn-for-ethanols carbon footprint
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2016)... 5, 2016 http://www.researchandmarkets.com/research/5kvw8m/global_facial ... "Global Facial Recognition Market 2016-2020" ... http://www.researchandmarkets.com/research/5kvw8m/global_facial ) has announced the addition of ... report to their offering. --> ... has announced the addition of the ...
(Date:2/3/2016)... -- --> --> ... Identification System Market by Component (Hardware and Software), Search ... Government, Healthcare, and Transportation) and Geography - Global Forecast ... to be worth USD 8.49 Billion by 2020 at ... The transformation and technology evolution from the manual process ...
(Date:2/2/2016)... YORK , Feb. 2, 2016 /PRNewswire/ ... facilities are primarily focused on medical screening ... measure point-of-care parameters. Wearable devices that facilitate ... user,s freedom of movement are being bolstered ... for human biomedical signal acquisition coupled with ...
Breaking Biology News(10 mins):
(Date:2/9/2016)... , Feb. 9, 2016 BERG, a ... biological research approach, has announced the appointment of ... and Chief Operating Officer. Haddock brings to BERG ... including 12 years in senior financial functions at ... in business organizational management. Niven ...
(Date:2/8/2016)... GUELPH, ON , Feb. 8, 2016 /PRNewswire/ - BIOREM ... nominated to the top ten finalists for clean technology companies ... are the top 10 companies listed on the TSX ... mining, oil & gas, clean technology & life ... formula with equal weighting given to return on investment, market ...
(Date:2/8/2016)... 2016  CytRx Corporation (NASDAQ: CYTR ), ... oncology, today announced that it has entered into ... Technology Growth Capital, Inc. and Hercules Technology III, ... --> --> ... financing under the loan and security agreement.  The ...
(Date:2/8/2016)... , Feb. 8, 2016 Novan, Inc. today announced ... of the Board of Directors of Novan. In addition, Robert ... North Carolina . --> ... also announced that it received a total of $32.8 million of ... from its private investor network originating throughout the Research Triangle area ...
Breaking Biology Technology: