Report on the Agricultural Experiment Stations, 1952 Page: 15
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AGRICULTURAL ENGINEERING 15
A simplified antismut treatment
The West Virginia station has developed another short cut in the
treatment of wheat and barley seed to protect it against loose smut.
The new device combines the principle of the hot-water seed treater
and the warm-air seed drier, and is a modification of the hot-water
bath developed by the Oklahoma station in 1940. It utilizes steam
heat and permits accurate control of the temperature of the bath and
of the time of soaking. The drier treats 2-bushel lots of the bathed
wet grain with air heated from 110 to 120 F. An automobile radiator
attached to a steam or hot-water line is used for heating. Air is
forced over this radiator by a centrifugal blower having a capacity
of approximately 1,200 cubic feet per minute. A 34-horsepower motor
is used as power for the fan.
Economical drying of baled hay
Baling hay before it is entirely field cured has become a modern,
and frequently desirable, practice on mechanized farms, particularly
where inclement weather is imminent. However, driers for baled
hay have been costly. The North Carolina station has developed a
baled-hay drier that is fast and economical to operate and does not
call for a heavy original investment. The drier reduces the moisture
content of bales from 35 to 19 percent in 16 to 22 hours at a cost of
$2.85 per ton, when fuel oil costs 11.9 cents a gallon. The drier permits
the use of high but carefully controlled temperature.
Mechanical drying of corn and small grains
The Illinois station (coop. USDA) developed an inclined-column,
batch-type, shelled-corn and small-grain drier. Grain is dried and
cooled simultaneously in two chambers with one fan and one heater.
This permits continuous operation of the heater and fan for increased
drying capacity. Greater efficiency is obtained through heat regained
from the dried grain. Shelled corn with 26 percent moisture was
dried to 14 percent in a farm-built drier of this design at a cost of
2.5 cents a bushel for fuel and power. Efficiencies and drying rates
compared favorably with those of other drying systems.
Practical reduction of moisture in newly harvested ear corn to safe
levels for storage in prefabricated steel buildings was accomplished by
using forced air at prevailing outside temperatures. The cost for
electricity to drive the fan was about 0.5 cents for each bushel of corn
dried. Corn left in the field did not lose moisture so fast as the ventilated
corn, and hence was subject to additional field losses from bad
Forced ventilation cuts tobacco curing costs
A forced-ventilation system using a fan to circulate the air through
tobacco-curing barns has been developed by the Virginia station to
meet the need for lowering bright tobacco curing costs.
The new system may lower the over-all cost for fuel and labor per
unit cure. From 40 to 50 percent more tobacco may be cured in a
standard barn at a lower cost than by the usual methods. The extra
capacity is obtained by packing the sticks closer on the tiers. There
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United States. Office of Experiment Stations. Report on the Agricultural Experiment Stations, 1952, book, January 1953; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5990/m1/17/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.