Energy News  





.
FARM NEWS
Pelletized Manure Reduces Toxic Runoff

File image.
by Staff Writers
Madison WI (SPX) Nov 19, 2010
There is considerable amount of uncertainty concerning the environmental impacts that animal hormones have on surface water. Higher concentrations of hormones in waterways have been found to cause physiological and sexual impairment in fish and other aquatic species.

However, a study from the University of Delaware that examined estrogen concentrations runoff from agricultural fields fertilized with chicken manure found that it is as much about the application of the manure as it is about the measurement of the types of estrogen.

The study was conducted on the experimental plots on the Coastal Plain agricultural soils in Middletown, DE. It measured and compared the amounts of both toxic, free forms of estrogen hormones and less toxic species found in runoff.

Corn was planted as a cover crop and chicken manure was applied in either a pelletized form or a raw litter form. Reduced tillage and no tillage treatments were also employed. Samples of surface runoff were collected after 10 rain storms during the 2008 summer growing season from April through July.

Sudarshan Dutta, the author of the study, found that the amounts of estrogen were lower in plots fertilized with pelletized manure and plots that received no-tillage treatments.

Additionally, Dutta discovered the entire range of estrogen concentrations in the samples was significantly lower than those observed in other previous agricultural studies. Nevertheless, concentrations of the less toxic conjugate forms of estrogen were higher than the toxic, free forms.

According to Dutta, prior studies did not usually measure the conjugate forms of estrogen, saying it is necessary to measure these forms.

"The higher concentration of conjugate forms of estrogens underscores the need for reporting all forms of the hormones. This is especially critical considering that conjugate species can be converted to the toxic free forms under certain environmental conditions," he says.




Share This Article With Planet Earth
del.icio.usdel.icio.us DiggDigg RedditReddit
YahooMyWebYahooMyWeb GoogleGoogle FacebookFacebook



Related Links
American Society of Agronomy
Farming Today - Suppliers and Technology



Tempur-Pedic Mattress Comparison

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News
FARM NEWS
Chips bags too noisy for US, but a hit in Canada
Montreal (AFP) Nov 17, 2010
Frito-Lay had hoped its launch of the first compostable chips bag would be a hit with environmentally-conscious consumers, but a backlash over the very noisy pouch forced its removal from US store shelves. Now, determined not to allow four years of research to develop the bags go to waste, it is trying a new marketing ploy to sell Canadian consumers on their merits. Displays in stores to ... read more

.
Get Our Free Newsletters Via Email
  


FARM NEWS
UN-SPIDER Opens Beijing Office

Satellites Tracking Mt Merapi Volcanic Ash Clouds

Faster Flood Forecasting At SERVIR-Africa

Enhancing Sustainable Development Of Earth

FARM NEWS
Russia To Launch New Generation Satellite In 2013

SkyTraq Introduces New GLONASS/GPS Receiver

SES To Contribute To Galileo Operations

GPS IIF-1 Introduces A Host Of New Capabilities For Users

FARM NEWS
Tropical Forest Diversity Increased During Ancient Global Warming Event

New Discoveries Concerning Pre-Columbian Settlements In The Amazon

Brazil mulls land auction to beat logging

Footage shows land clearing threatens Indonesia tigers: WWF

FARM NEWS
BlueFire Renewables Receives Final Permits For Cellulosic Ethanol Facility

Strategic Alliance To Process Jatropha Seeds Into Sustainable Crude Oil

Statoil Now Blending Inbicon's Cellulosic Ethanol For Danish Drivers

Celanese Develops Advanced Technology For Production Of Industrial-Use Ethanol

FARM NEWS
Solar Steam Generator System In UAE

Suntech To Acquire 375MW Of Wafer Manufacturing Capacity

Chinese Companies Dominate Solar Manufacturing Spending In 2010

UNI-SOLAR Brand Photovoltaics To Be Utilized In Italy

FARM NEWS
Poland's Solidarity shipyard turns to wind turbines

German utilities lobby for offshore wind

Chinese wind power producers plan Hong Kong IPOs: report

Global Warming Reduces Available Wind Energy

FARM NEWS
China jails coal mine managers over deadly gas explosion

33 women shut themselves in Chile mine to protest job losses

Twelve killed in China coal mine flood: state media

Colombia coal mining gets a timely boost

FARM NEWS
Six countries turn down Nobel ceremony invite: Institute

China law enforcers ordered to make no-beating vow: report

No one to come pick up Nobel Peace Prize: Nobel Institute

Brother of jailed China Nobel winner calls for his release


The content herein, unless otherwise known to be public domain, are Copyright 1995-2010 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement