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
Latest news
Date Title
12:47p Chattanooga builder breaks ground on Phase II of Southside neighborhood
12:42p Corporate raiders seek Brexit bargains in Britain
12:37p G20 will use 'all policy tools' to lift growth as Brexit weighs
12:36p U.S. TREASURY'S LEW : underscored U.S. economy as source of strength at G20
12:35p OKLAHOMA BOOK NOTES : Harry Potter, brotherly love and movie scripts
12:30p STATOIL ASA : Accord entre Sonatrach et ses partenaires pour la compression de 40% des travailleurs étrangers
12:30p BEST BUY : Athens stores gearing up for tax-free weekend
12:29p SHOPIFY : PAYFORT helps Arab startups create online stores with Shopify
12:27p FEDEX : Some Grand Forks leaders OK with Fargo tax incentives for FedEx
12:20p OORO QSCADR : Ooredoo Companies Win Series of Honours at International Award Ceremonies
Latest news
Advertisement
Hot News 
4.80%STANLEY BLACK & DECKER : Names New CEO, Raises Guidance
-6.75%PAYPAL : Visa profit tops estimates on higher payments volume
-2.57%HONEYWELL : Cuts Revenue Guidance
11.88%ADVANCED MICRO DEVICES : Correction to AMD earnings article
8.51%TSX at highest close in year, 4th weekly gain; telecoms shine
Most Read News
12:30a ASEAN ASSOCIATION OF SOUTH EAST ASIAN NATIONS : Welcoming Remarks by H.E. Saleumxay KOMMASITH, Minister of Foreign Affairs of the Lao PDR at the Opening Ceremony of the 49th ASEAN Foreign Ministers’ Meeting
07/23 MANCHESTER UNITED : Sunderland snap up 'first choice' Moyes as boss
07/23 EXCLUSIVE : Tesla, SolarCity close to merger agreement
07/23 MICROSOFT : will spend up to $2.5B for 1.7M square-foot data center in Iowa, its largest in U.S.
07/23 VODAFONE : For Vodafone in Ireland, it was win some lose some in Q2
Most recommended articles
06:42a Corporate raiders seek Brexit bargains in Britain
06:37a G20 will use 'all policy tools' to lift growth as Brexit weighs
05:45aDJMICHAEL DELL : Dell, HP Take Opposite Tacks Amid Roiling Tech Market
07/23 EXCLUSIVE : Tesla, SolarCity close to merger agreement
07/23 ELON MUSK : sources