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| June 8, 2009 |
A Penton Media, Inc Publication
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There were approximately 125 operating anaerobic manure digesters in
the United States in 2008, says Chris Voell, program manager with the
U.S. Environmental Protection Agency’s (EPA) AgSTAR Program. He told
World Pork Expo attendees last week that an estimated 4,000 U.S. swine
farms would make viable candidates for using the digester technology.
Interested producers would still face some challenges, however, as the
energy policies at local, state and national levels can sometimes make
the process of connecting to the power grid and selling energy somewhat
difficult.
EPA offers an online database touching on some of the basics involved
with anaerobic manure digestion. The website features descriptions of a
number of on-farm digester projects in the United States. Voell says
captured biogas is used to generate electrical power for the farms in
113 of the 125 operational U.S. digester systems. These systems generate
about 244,000 MWh of electricity per year. The remaining 12 systems use
the gas in boilers, upgrade the gas for injection into the natural gas
pipeline, or simply flare the captured gas for odor control.
Half of all manure-based digesters are located in California, Wisconsin,
New York and Pennsylvania. There are 18 operating swine manure digesters
in the U.S. The majority of the country’s manure digesters are being
used in dairy operations, with a small number of poultry operations and
one beef producer also utilizing the technology.
Learn more about anaerobic manure digesters and see the database at the
EPA AgSTAR website at www.epa.gov/agstar/operational.html#addatabase.
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Now’s the Time to incorporate a Slurrystore System into your nutrient
management program. Slurrystore is compatible for any system whether
your goal is long term storage, nutrient retention, green containment,
digesters or manure processing. Plus Slurrystore Systems include the
added feature of agitation to help ensure nutrient consistency. Click here or contact your local
Authorized Slurrystore Dealer for more information.
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The Manitoba Manure Management Initiative is seeking proposals for
innovative manure management research and demonstration projects in
three specific project areas:
1. Decreasing phosphorus loading in soils to comply with current
regulations.
2. The impact of nutrients and/or heavy metals released from various
manure sources when applied to annual versus perennial cropping systems.
3. Development of standards for acceptable odor levels surrounding
livestock operations, reducing indoor and outdoor odor and gases, and
evaluating livestock siting models.
Proposals submitted in other subject areas will be considered as well,
but funding priority will be given to the above topic areas. Proposals
will be selected based on relevance for implementation in Manitoba. The
deadline for submissions is June 30, 2009. Contact Brandy Street,
executive director of the Manitoba Livestock Manure Management
Initiative, Inc. at 204-954-2122, or email brandy.street@gov.mb.ca.
Application forms are available at the group’s website at www.manure.mb.ca/projects.
The Manitoba Livestock Manure Management Initiative is designed to work
with the province’s agricultural industry to address challenges that
come with adapting to environmental regulations and manure and odor
management in animal agriculture.
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Agricultural Research Service (ARS) scientists have found that solid
dairy manure is better than commercial fertilizer in mitigating the
amount of phosphorus that can accumulate in water percolating through
the soil. However, using liquid dairy manure can make the leaching
problem worse.
ARS soil scientists David Tarkalson and April Leytem, based at the ARS
Northwest irrigation and Soils Research laboratory in Kimberly, ID, used
manure from two Idaho dairy farms to study phosphorus leaching in the
fine sandy loam soils typically found in the region. In laboratory tests
they amended 24 soil columns with either liquid dairy manure, solid
dairy manure or monoammonium phosphate (MAP), a commercial fertilizer.
Then the researchers "irrigated" the soil columns 13 times over nine
weeks and collected the leachate, or liquid that drained out of the
soil. The leachate carried substances picked up along the way during
each irrigation event. The leachate was analyzed for total organic
carbon and total phosphorus. After the irrigation testing, researchers
also analyzed the soil in each column for phosphorus, carbon, calcium,
iron and manganese.
Tarkalson and Leytem found that the largest quantities of phosphorus
moved through soils that had been amended with liquid manure. They
discovered that the phosphorus in MAP was more mobile in the soil than
phosphorus in the solid manures. The scientists observed that liquid
manure and solid manure differed significantly in their carbon compound
makeup, which may contribute to the resulting variations in the manure
leachates. Other factors may also play a part in the dynamics of
phosphorus leaching, including microbial activity, soil metal content
and the ability of clay particles in the soil to attract and hold onto
phosphorus.
Read more about the research at the USDA Agricultural Research Service
website at www.ars.usda.gov/is/pr/2009/090528.htm?pf=1.
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nutrient blend and consistency with every load using a Slurrystore® and
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ag nutrient storage. Now’s the Time for Slurrystore. Click here or contact your local
Authorized Slurrystore Dealer for more information.
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A recent post on the eXtension website explains how producers can
find information about state regulatory authorities. The Environmental
Protection Agency (EPA) maintains a page listing the contact information
for all state regulatory authorities responsible for environmental
regulation of livestock and poultry operations. State resources are
found online at cfpub.epa.gov/npdes/contacts.cfm?program_id=7&type=STATE.
These are the government agencies that regulate livestock waste in each
specific state. Producers who have questions about how the regulations
apply to their farm should contact these state resources first.
EPA is divided into 10 regions, each generally made up of four to six
states. The EPA regional contacts essentially oversee the state
environmental programs. The list of regional contacts is online at cfpub.epa.gov/npdes/contacts.cfm?program_id=7&type=REGION.
EPA also maintains a Compliance Assistance Center to provide producers
and their advisers with information about environmental regulations and
how they apply to agricultural operations. This resource can be found at
www.epa.gov/agriculture/.
Learn more about a variety of manure management topics at the eXtension
website at www.extension.org/animal%20manure%20management.
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The eXtension website will feature a July 31, 2009 webcast
presentation focusing on calculating the carbon footprint of animal
feeding operations. The presentation will be led by Jude Capper,
Washington State University. Capper has authored several papers and
delivered presentations about the impact of dairy production efficiency
on the industry's carbon footprint. The July 31 webcast is scheduled for
2:30 p.m. (EST)/1:30 p.m. (CST).
Participants can access the webcast on July 31 by following directions
outlined at www.extension.org/pages/Live_Webcast_Information.
First-time viewers should follow the steps at www.extension.org/pages/How_Do_I_Participate_in_a_Webcast?
a few days
before the webcast to ensure they will be able to access the virtual
meeting room.
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The Midwest Professional Nutrient Applicators Annual Meeting and
Educational Program will be held June 23, 2009 at the Ohio State
University-Lima campus in Reed Hall, room 160. Current members as well
as producers or nutrient applicators who may be interested in joining
the group are all invited to attend the meeting.
Presentations will cover bio-security issues, business analysis of a
custom farming operation, stockpiling manure and conservation systems
with Environmental Quality Incentives Program (EQIP) and slurry seeding,
among other topics. The $10 registration fee includes lunch. A full
agenda and registration information can be found online at http://oema.osu.edu/documents/flyer_000.pdf.
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The 2009 Manure Science Review will be offered at two Ohio locations
on July 21 and 23, 2009. The program includes a hands-on session using a
workbook to determine crop nutrient needs, manure application rates and
crop nutrient balance. Following lunch from noon to 1:00 p.m., the
second session of each day includes an in-depth look at nutrient
management issues including an on-site assessment of application best
management practices. Participants can then take part in an on-farm
inventory and evaluation workshop hosted by a local dairy. The on-farm
assessment will look at specific areas of concern and teach participants
about mitigation options for manure handling.
The programs begin at 9:00 a.m. each day. The July 21 program will begin
at the Manor Restaurant, Strasburg, OH, with the afternoon session
hosted by Rowe Dairy near Strasburg. The July 23 program begins at St.
Mary’s Hall, St. Mary’s, OH. The afternoon program on July 23 will
take place at Brown Dairy, New Bremen, OH.
Directions and registration details are available online at www.oardc.ohio-state.edu/ocamm/MSR09_brochure.pdf.
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The 2009 Upper Midwest Manure Handling Expo will be held at the
Central Iowa Expo Center in Boone, IA on July 22, 2009. The theme for
the meeting is “SET for Fall: Safety, Efficiency, and Technology.”
Visitors and vendors will have a chance to interact and discuss manure
handling equipment, products and services. The Expo will also offer
educational opportunities.
Learn more about the Midwest Manure Handling Expo online at www.ucs.iastate.edu/mnet/2009ummhe/home.html.
For additional information email agwaste@iastate.edu.
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eHay Weekly is a weekly compilation of prices and marketing
information for commercial hay growers. Updates include local market
conditions, state and regional hay association news, hay prices from
around the nation, and links to USDA weekly hay reports. eHay Weekly is
brought to you from the editors of Hay & Forage Grower.
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Send Comments & Questions To
Dale Miller, Editor,
National Hog Farmer
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