Member access

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
Latest news
Date Title
<1m agoDJHDFC Bank July-September Net Profit Up 20%
1m ago WILLIAM HILL : *traders: canaccord raises william hill price target to 365 pence
1m ago China's reform tally since November 2013 policy meeting
2m ago SYNERGY HEALTHCARE : Form 8.3 - Synergy Healthcare
2m ago SMURFIT KAPPA : at INDAGRA Exhibition, Bucharest, 29 Oct - 2 Nov
2m ago MND : 2014/15 publications calendar
2m ago CHINA XLX FERTILISER : Recognised as Pioneer Unit of Provincial Intellectual Property
2m ago EUROPEAN COMMISSION DIRECTORATE GENERAL FOR ENTE : E-Learning Module: Enforcement of IPR in China (China IPR SME Helpdesk)
2m ago GEFRAN : 20-10-2014 - Gefran: updating of the Plan for the Acquisition and Disposal of Ordinary Shares
2m ago BLACKROCK WORLD MINING : Portfolio Update
Latest news
Advertisement
Hot News 
DOMINION MIDSTREAM PARTNERS : Closes Initial Public Offering
STRATMIN GLOBAL RESOURCES : Seals Offtake Agreement With Independent Global Graphite Merchant
NCR : Third Quarter 2014 Earnings Conference Call Rescheduled for October 23
NORTHERN PETROLEUM : Drilling and production update
Blur Group Signs Tesco and Argos to Platform
Most Read News
2h ago Total CEO de Margerie killed in Moscow as jet hits snow plough
1d ago Chipotle stock dips as sales growth forecasts come down
1d ago GULFMARK OFFSHORE : Announces Third Quarter 2014 Operating Results
1d agoDJASIAN SHARES : Hang Seng Rises on China Growth Data -- Update
1d ago New Microsoft CEO pay tops $80 million with big stock awards
Most recommended articles
1m ago China's reform tally since November 2013 policy meeting
6m ago Reckitt Benckiser sales hurt by sluggish markets
7m agoDJQuindell Shares Rise On Canada Car Telematics Contract
12m ago HSBC : boss says EU banker bonus cap a 'retrograde' step
15m ago Daimler eyes stake in motorbike maker MV Agusta - report
Dynamic quotes  
ON
| OFF