Log in
E-mail
Password
Remember
Forgot password ?
Become a member for free
Sign up
Sign up
Settings
Settings
Dynamic quotes 
OFFON

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 CET

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
02:46a TALEND : Makes Big Gains with Large Enterprise Customers - Adds 130 New Logos in Q4
02:45a Sky TV considers options after NZ rejects Vodafone NZ deal
02:44a ROBBINS ARROYO LLP : Kitov Pharmaceuticals Holdings Ltd. KTOV Misled Shareholders According to a Recently Filed Class Action
02:44a UNILEVER : Activists seek corporate help for Rohingyas
02:44a OOREDOO : Jumbo Electronics' promotion a big hit
02:44a DEUTSCHE TELEKOM : Man arrested over Deutsche Telekom hacking
02:44a Ghosn to step aside as Nissan CEO
02:44a U.S. oil slips as stockpiles rise for seventh week
02:44a PROGRESS SOFTWARE : An Application for the Trademark "PROGRESS SOFTWARE BUSINESS MAKING PROGRESS" Has Been Filed by Progress Software
02:43a ANA : to bring budget carrier Peach Aviation under its wing
Latest news
Advertisement
Hot News 
-15.81%L BRANDS : Malls' Woes Hurt Victoria's Secret, Bath & Body Works
8.64%HP : Sales Get Boost From PC Rebound -- WSJ
7.90%CROWN RESORTS : Casino Operator Crown Puts Big China Play on Hold
-2.32%WIRECARD : Germany's Bafin asks prosecutors to investigate Wirecard share movements
18.18%SEMBCORP MARINE : Industries Net Profit Jumps in 4th Quarter as Marine Business Stabilizes
Most Read News
06:59p Exclusive - Trump says Republican border tax could boost U.S. jobs
07:28p Safran rejects TCI Fund Management's criticism of Zodiac Aero bid
07:42p ALPHABET : self-driving car unit sues Uber with trade theft charge
07:23p SAMSUNG ELECTRONICS : Game company seeks to block Facebook from using virtual reality code
06:35p ENBRIDGE OIL PIPELINE LEAK COULD MEAN MARKET DISRUPTION : traders
Most recommended articles
12:23pDJVIVENDI : Full-Year Earnings Beat Estimates
08:38pDJAIA : Full-Year Net Profit Up 51% at US$4.16 Billion
07:58p Dollar nurses losses from this week's Fed minutes
07:54pDJDEVON ENERGY : EPA Chief Scott Pruitt's Emails Show Close Ties With Oil and Gas Companies
07:42p ALPHABET : self-driving car unit sues Uber with trade theft charge