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
03:34p NIGC NATIONAL IRANIAN GAS : KOGAS Ink Gas MoU
03:29p CLIFFORD CHANCE LLP : advises on sale of the Isaac Plains Coal Project by Sumitomo Corporation and Vale
03:27pDJECB's Coeuré Defends Bank's Policies to German Audience
03:26p VODACOM : It's not just a Vodacom story
03:19p NEW ZEALAND WINE : Viticulture briefs
03:16p FIAT CHRYSLER AUTOMOBILES NV : Distribution of FCA Ownership in RCS MediaGroup
03:15p KOREA GAS : Iran, South Korean KOGAS sign gas co-op document
03:08p OTD : May 1
03:07p DREAMWORKS ANIMATION SKG : NBCUniversal acquires DreamWorks Animation
03:07p SIEMENS : bags Qatar power plant deal
Latest news
Advertisement
Hot News 
ANDALAS ENERGY AND POWER : Issue of Zero Coupon Loan Note
6D GLOBAL TECHNOLOGIES, INC : Change in Directors or Principal Officers, Financial Statements and Exhibits (form 8-K)
AVOLON : sustains strong performance as fleet increases to over 400 aircraft
PETRO MATAD : Expecting "Highly Material" Compensation From Partner
HML : Director Dealing April 2016
Most Read News
04/30 Inbox Blueprint 2.0 – Anik Singal Launches an Easy to Follow Online Marketing Program for Beginners in Email Marketing
04/30 LIPOSUCTION VS. TUMMY TUCK : Which Is Right for Me?
04/30 Derma Essence Facial Serum – Critical Information Released
12:27a FIRST : ® Hosts 20,000+ Students at World’s Largest Robotics Competition
04/30 ACF AUSTRALIAN CONSERVATION FOUNDATION : Coal or coral? Greens plan puts choice in focus
Most recommended articles
09:27aDJECB's Coeuré Defends Bank's Policies to German Audience
08:37aDJNew-Car Sales in France Rose 7.1% in April
08:29aDJNorth Sea Helicopter Operators Making Backup Plans After Norway Crash--Update
06:40a ECB's Coeure says not an option to give up on inflation target
06:26a China's tax overhaul aims to cut business costs