Featured Research

from universities, journals, and other organizations

Growing sorghum for biofuel

Date:
November 10, 2010
Source:
American Society of Agronomy
Summary:
Researchers examined 12 varieties of sorghum grass grown in single and double cropping systems to test the efficiency of double cropping sorghum grass to increase its yield for biofuel production.

Conversion of sorghum grass to ethanol has increased with the interest in renewable fuel sources. Researchers at Iowa State University examined 12 varieties of sorghum grass grown in single and double cropping systems. The experiment was designed to test the efficiency of double cropping sorghum grass to increase its yield for biofuel production.

The author of the report, Ben Goff, found that using sorghum from a single-cropping system was more effective for the production of ethanol. Since most of the ethanol currently produced in the United States is derived from corn, Goff suggests that corn may not be able to meet the energy needs of the country. According to the study, only 15 to 25% of the energy requirements would be fulfilled using corn or starch-based ethanol; however, ethanol produced from cellulose could be more effective than previous biofuels.

Goff states that from a production standpoint, growing sorghum as a sole crop is more efficient for ethanol production, however, it remains to be seen whether the favorable long-term environmental benefits, such as reduced erosion potential, of the double-cropping systems merits the reduced total biomass production.

Although certain genotypes of sorghum from the double-cropping system yielded total biomass equal to those in the single-cropping study, all of the sorghum varieties in the single-cropping system had consistently higher ethanol yields.

The author theorizes that these altered chemical compositions could be attributed to the different cropping systems.

Goff recommends that further research on double-cropping systems for ethanol production should focus on efforts to maximize production of sorghum, such as incorporating a winter crop that matures earlier in the season. This would allow planting of the sorghum closer to its optimal date and capitalize on its ability to produce greater and higher-quality biomass over a greater portion of the growing season.

This study was funded by the Iowa Energy Center.


Story Source:

The above story is based on materials provided by American Society of Agronomy. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ben M. Goff, Kenneth J. Moore, Steven L. Fales and Emily A. Heaton. Double-Cropping Sorghum for Biomass. Agronomy Journal, November/December 2010 [link]

Cite This Page:

American Society of Agronomy. "Growing sorghum for biofuel." ScienceDaily. ScienceDaily, 10 November 2010. <www.sciencedaily.com/releases/2010/11/101110141531.htm>.
American Society of Agronomy. (2010, November 10). Growing sorghum for biofuel. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2010/11/101110141531.htm
American Society of Agronomy. "Growing sorghum for biofuel." ScienceDaily. www.sciencedaily.com/releases/2010/11/101110141531.htm (accessed October 20, 2014).

Share This



More Earth & Climate News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Powerful Hurricane Gonzalo Heads to Bermuda

Raw: Powerful Hurricane Gonzalo Heads to Bermuda

AP (Oct. 17, 2014) Hurricane Gonzalo pounded Bermuda with wind and heavy surf on Friday, bearing down on the tiny British territory as a powerful Category 3 storm that could raise coastal seas as much as 10 feet. (Oct. 17) Video provided by AP
Powered by NewsLook.com
So, Kangaroos Didn't Always Hop

So, Kangaroos Didn't Always Hop

Newsy (Oct. 16, 2014) Researchers believe an extinct kangaroo species weighed 500 pounds or more and couldn't hop. Video provided by Newsy
Powered by NewsLook.com
Hurricane Gonzalo Is A Category 4 And Heading To Bermuda

Hurricane Gonzalo Is A Category 4 And Heading To Bermuda

Newsy (Oct. 16, 2014) Powerful hurricane could hit Bermuda this weekend, and even if it misses it will likely do some damage. Video provided by Newsy
Powered by NewsLook.com
The Largest Volcano In Centuries Is Spewing Toxic Gas

The Largest Volcano In Centuries Is Spewing Toxic Gas

Newsy (Oct. 16, 2014) One of the largest volcanic eruptions in centuries is occurring on Iceland. The volcano Bardarbunga is producing high levels of sulfur dioxide. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins