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

4-Traders Homepage  >  News

News

Latest NewsCompaniesMarketsEconomy & ForexCommoditiesHot NewsMost Read NewsRecomm.Business LeadersVideosCalendar 

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

01/01/2013 | 09:14am US/Eastern

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
React to this article
Latest news
Date Title
08:34p TEXAS ROADHOUSE : BRIEF: Re-enactor's guns, ammo stolen after Old Cowtown event
08:32p MARRIOTT : Stonington PZC to look at food truck regulations
08:31p ADVISORSHARES : Announces Adjusted NAV for One Exchange-Traded Fund
08:30p CARDNO : Innovations in Asset Management in the spotlight
08:26p HONDA MOTOR : Acura Transmissions Now Part of Second Hand Inventory at PreownedTransmissions.com
08:25p TFS : Full Year Profit and Cash EBITDA Ahead of Guidance
08:25p TFS : Dividend Distribution - TFC
08:25p TFS : Preliminary Final Report - Appendix 4E
08:25p DEPARTMENT OF INDUSTRY AND SCIENCE AUSTRALIAN GO : New support for carbon capture and storage R&D
08:25p BOOM LOGISTICS : Change in Substantial Holdings – 25/08/15
Latest news
Advertisement
Hot News 
OPPORTUNITY INVEST MGMT : 28 augustus 2015 - PRESS RELEASE: Announcement OIM 28 August 2015
MOLYCORP : Massive Mojave mine Molycorp to close, taking nearly 500 jobs
CHALLENGER ACQUISITIONS : Says It Is Focused On Integrating Starneth
MAVEN INCOME & GROWTH VCT : 4 Net Asset Value Total Return Rises
EUROCONSULT : 1,400 Satellites Projected to Launch Over Next Decade
Most Read News
07:02p Politicians welcome Berri's call for dialogue
06:05p DATACENTRIX : Forward-thinking Western Cape government wins OpenText "Big Think" award
07:01p Tezzaron Announces World’s First Eight-Layer Active Wafer Stack
07:20p GOLDEN MEDITECH : Notice of extraordinary general meeting
07:20p GOLDEN MEDITECH : Despatch of circular in relation to (i) proposed open offer on the basis of one offer share for every two shares held on the record date and (ii) application for whitewash waiver and (iii) notice of extraordinary general meeting
Most recommended articles
08:07pDJLawyer's Offstage Acts Threaten Record Pact
07:35p USDJPY-Just a Dip or Important Reversal?
07:30p Slowing economy hits earnings at top Chinese machinery makers
07:11p World to Fed - We're prepared for U.S. rate hike, so don't delay
07:00p USD/CHF TECHNICAL ANALYSIS : 3-Day Win Streak Broken