Log in
Login
Password
Remember
Forgot password ?
Become a member for free
Sign up
Sign up
Settings
Settings
Dynamic quotes 

4-Traders Homepage  >  News

News

Latest NewsCompaniesMarketsEconomy & ForexCommoditiesInterest RatesHot NewsMost Read NewsRecomm.Business LeadersCalendar 

ARS - Agricultural Research Service : Sunn Hemp Shows Promise as Biofuel Source

share with twitter share with LinkedIn share with facebook
share via e-mail
0
01/01/2013 | 03:14pm CEST

January 3, 2012

Work by scientists at the U.S. Department of Agriculture (USDA) suggests that farmers in the Southeast could use the tropical legume sunn hemp (Crotalaria juncea) in their crop rotations by harvesting the fast-growing annual for biofuel. The study, which was conducted by Agricultural Research Service (ARS) scientists in Florence, S.C., supports the USDA priority of finding new sources of bioenergy. ARS is USDA's chief intramural scientific research agency.

ARS agricultural engineer Keri Cantrell, agronomist Philip Bauer, and environmental engineer Kyoung Ro all work at the ARS Coastal Plains Soil, Water, and Plant Research Center in Florence. They compared the energy content of sunn hemp with cowpea (Vigna unguiculata), another common regional summer cover crop, in 2004 and 2006.

Both crops were grown in experimental plots near Florence and were harvested on the same day three times in each study year. The last harvest for both years was conducted right after the first killing freeze of the season. The scientists measured potential energy production of both feedstocks via direct combustion. This provided the feedstocks' higher heating value (HHV), which indicates how much energy is released via combustion.

In 2004, when there was ample rainfall, the resulting sunn hemp biomass yield totaled more than 4.5 tons per acre. This is equivalent to 82.4 gigajoules of energy per acre, close to the energy contained in 620 gallons of gasoline and well in the ballpark of other bioenergy crops, which have yields of anywhere from 30 to 150 gigajoules per acre.

The HHV for sunn hemp biomass exceeded the HHV for switchgrass, bermudagrass, reed canarygrass and alfalfa. Although reduced rainfall resulted in lower hemp biomass yields in 2006, sunn hemp's HHV for both study years was 4 to 5 percent greater than the HHV of cowpeas.

distributed by
share with twitter share with LinkedIn share with facebook
share via e-mail
0
React to this article
Latest news
Date Title
06:47a WHITE CLIFF MINERALS : Results of General Meeting
06:47a DEPARTMENT OF FOREIGN AFFAIRS OF REPUBLIC OF T : Statement on the G7 Summit Declaration
06:47a TOYOTA MOTOR : Urban Teammate to Feature at 2016 Ise-Shima G7 Summit
06:42a 05-30-16 - REPOWER PLANS RIGHTS ISSUE TO INCREASE ITS CAPITAL AND ACQUIRES TWO NEW SHAREHOLDERS WITH A LONG-TERM HORIZON : EKZ and UBS-CEIS
06:42a NETSUITE : HK Express' Business Takes Off With NetSuite OneWorld
06:42a NETSUITE : OneWorld Ready for Singapore and Hong Kong
06:39aDJMETRO PACIFIC INVESTMENTS : Unit Plans PHP42 Billion, 3-Year Spending for Water Projects
06:38a Advertising Week Asia 2016 Final Agenda Confirmed Global Leadership Event Premiers in Tokyo May 30-June 2
06:37a ELONG : Announces Shareholder Vote to Approve Going Private Transaction
06:37a FIRST PACIFIC : Closing of purchase by Philippine Long Distance Telephone Company of additional spectrum
Latest news
Advertisement
Hot News 
FIRST SENSOR : Changes to the Management Board of First Sensor AG (more)
KONAMI : Shareholders Situation As of March 31, 2016
OMRON : Introduces Sensors Enabling Stable Detection of Color Marks on Food Packages, Better Productivity in Packaging Process
FIRST PACIFIC : Metro Pacific Investments Corp. Buys 25% of Beacon Electric Asset for US$563.4 Million
COGOBUY : INGDAN.Com and the Hong Kong University of Science and Technology Partner to Enter New Materials Industry
Most Read News
05/29 CORAL CARNAGE : take your anger to the polling booth, says Greenpeace
05/29DJMizuho Chief Warns of Japan Downgrade if Abe Delays Tax Increase
Most recommended articles
12:39aDJMETRO PACIFIC INVESTMENTS : Unit Plans PHP42 Billion, 3-Year Spending for Water Projects
12:36a EXCLUSIVE : Chinese, Japanese suitors eye $4 billion sale of CIT plane leasing unit - sources
12:17a Abe tells party official Japan will delay tax hike by two and a half years
05/30 Crude Oil Prices May Fall in Pre-Positioning for OPEC Meeting
05/29DJOil Prices Barely Move; OPEC Meeting in Focus