Ohio’s Country Journal
July 2009
31
Farm EquiPmENt
odors being released. Disturbance of
Lingying ZhoA
manure, such as agitation prior to
application and wind blowing over the
surface of the manure will increase
Applied
odor emission as well. Dry air will also
enhance evaporation of odorous
Engineering volatile organic compounds.
In short, odor emissions are affected
by manure surface area, airflow, air
Odor control for manure storages
temperature, relative humidity, and the
type of manure storage and treatment
Manure storage facilities are
system. Once the odorous compounds
prominent sources of odor on farms.
are emitted, wind or warm air rising
Warm temperatures increase microbial
during the day will help transport and
activity in manure storages, which
disperse odors.
results in odorous compounds being
generated. Therefore, in summer, odor
Odor control strategies
emissions from manure storages Odor control strategies for manure
increase significantly. storages are generally to reduce odor
OSU research indicated June, July generation, emission and dispersion.
and August are peak months of odor Covers on manure storages can signifi-
emissions. To prevent complaints by cantly reduce odors. Permeable organic
neighbors, many animal producers are covers are effective, but not durable.
considering odor control practices for Synthetic covers (see photo) are durable
A floating impermeable lagoon cover
their operation. Various best manage- and relatively expensive, but not suitable
ment practices and best available tech- for storages with frequent agitation and
or semi-solid manure and can reduce cost and lifetime of the technology, the
nologies have been developed over the emptying needs.
manure volume, stabilize manure nutri- maintenance required and the ease
past two decades to reduce the odor Various manure treatment strategies
ents, kill pathogens and weed seeds, of operation.
emissions from manure storage facili- have been developed to reduce odor
and produce a homogeneous non- For specific odor control strategies
ties. This article highlights the advan- generation. Aerobic treatment is a good
odorous product. and technologies, please read our OSU
tages, disadvantages and application odor control, but consumes a signifi-
Finally, odor is often based on a per- Extension fact sheet AEX-738-08
scenarios for many of these odor con- cant amount of energy. Liquid and
son’s subjective perception of odorous “Overview of Odor Control for Manure
trol practices and technologies. solid separation is usually used to
compounds. Sometimes people “smell” Storage Facilities” at:
Why does it stink?
reduce solid content of manure stor- odor by seeing odor sources.
ohioline.osu.edu/aex-
ages and thus reduce odor. Anaerobic Landscaping around manure storages fact/pdf/0738.pdf.
Odors are unpleasant smells caused
lagoons and digesters are good odor definitely helps in reducing the percep- Lingying Zhao, associate professor and
by emissions of gases and many odorous
controls. However, anaerobic digesters tion of odor by neighbors. Extension agricultural engineer, can be
volatile organic compounds (VOCs) from
usually require high energy inputs and Selection of the appropriate technol- reached at
zhao.119@osu.edu. This column
natural degradation of animal manure
high technical expertise in design, ogy for odor control should be based is provided by the OSU Department of
and other organic matters. Once the
operation and maintenance. Manure on the level of control needed, and the Food, Agricultural and Biological
odorous compounds are generated, expo-
additives vary greatly in their effective- specific manure storage situation Engineering, OSU Extension, Ohio
sure of manure to the air will facilitate
ness, and caution is advised in select- including the size and type of manure Agricultural Research and Development
their release.
ing a manure additive for odor control. storage, the frequency of pumping, Center, and the College of Food,
A large contact surface area between
Composting is most applicable for solid existing manure treatment systems, the Agricultural, and Environmental Sciences.
the air and manure will result in more
Versatile to award tractor for simple, true 2009
National Farm Progress Show entry
Manufacturer asking growers to enter
ple of paragraphs, simply explain what and ready anytime it’s needed,” said Versatile have been busy talking with
now through late August
it means for them, their family and Adam Reid, Versatile marketing man- growers and dealers across the country
their operation to have a tractor that is ager. “There’s no better way to reward about reliability in the field.
If you can explain what a simple
simple, reliable and easy to maintain. a grower who values simplicity and Growers interested in entering the
and reliable tractor means to you in the
The entry then judged to be the most reliability than the use of a tractor that Versatile Simple and True Challenge
most eloquent and earnest fashion, it
heartfelt and sincere will win its writer is one of the most reliable and durable can go to www.SimpleandTrue
just might win you a free four-wheel
the free use of a tractor that has gained available today.”
Challenge.com. Entries will be accepted
drive tractor for a year.
the reputation for being the most For more than 40 years, Versatile- now though Aug. 23 and the grand
Versatile has announced that it will
rugged available. Nine finalists will built tractors have been known for prize winner and finalists will be
be awarding a year’s lease on a
also win prize packages including an their durability and reliability. In late announced at the Versatile demonstra-
Versatile 375 4WD tractor this
all-weather jacket, a sturdy backpack 2008, Buhler Industries, Inc. announced tion area on the grounds of the
September during the National Farm
and a specially designed, woven cap. that it was returning to its roots by re- National Farm Progress Show
Progress Show in Decatur, Ill., through
“We’ve been re-introducing the establishing Versatile as the sole name in September.
its contest themed as the “Simple and
Versatile brand since late last year and of its tractor line. The relaunch includ- Those interested in more informa-
True Challenge”
we saw this as our chance to highlight ed the introduction of new models, tion on Versatile tractors, including
(SimpleandTrueChallenge.com).
the value that growers have for equip- new warranties and new financing model details and specifications, can go
In it, growers are asked to, in a cou-
ment that is, above all, durable, reliable options. Since then, Reid and others at to
www.Versatile-ag.com.
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