luminaries out
H LONG-LASTING
ROTARY
FEEDER
JB^I
ZIMMERMAN'S
UNIMAL HEALTH
SUPPLY
Store Honrs:
Mon. Tues. Thors.
7 a.m. - 8 p.m.
fed-Closed All Day
Fri-7 a.m. to 9 p.m.
Sat-7 a.m. to 5 p.m.
DEUTZ - DlOO-06
ONE AND ONE ONLY
FIRST COME - FIRST SERVE
V ..‘v V
M
, STAUFFER DIESEL,
A
The most carefully engineered tractor in the world.
sylvania State University.
Each dairyman or A. I. unit
who owns one or more bulls
should have received the
summary data within the
last few weeks.
A survey of the latest in
formation shows that there
are now 136 Holstein sires
owned by AI units with a
predicted difference for milk
value of plus 1000 pounds or
more. This is almost a 25 per
cent increase over the
number available last
Winter. About one-half of the
sires have repeatability
values of 70 per cent or more.
This is the mark of a reliable
sire proof, says Specht. Such
a figure lends considerable
confidence to a sire’s
predicted difference value.
It indicates that the sum
mary was made by 40 to 60
daughters scattered in a
number of herds and that the
PD milk value is likely to
remain at, or near, the level
presently reported for the
sire.
It is worth noting that 13 of
the 14 plus 1000 pounds PD
sires owned by Pennsylvania
A. I. units have repeatability
values of 70 per cent or
higher. High repeatability
values are largely a con
sequence of well-run
progeny test programs.
Pennsylvania studs are
doing a good job of testing
young sires, concludes
Specht.
'A „
2 YEAR ENGINE WARRANTY
NEVER DEMONSTRATED
saie'l4,2so
VALUE *17,530
312 W. Main St
New Holland, PA
Ph. 717-354-4181
Cold-flow ammonia technique saves time and
energy in field work
UNIVERSITY PARK -
Fanners using anhydrous
ammonia as nitrogen fer
tilizer have a new process for
applying ammonia into the
soil. Known as cold-flow
ammonia, the process was
developed and patented by
agricultural engineers at
Penn State University.
The process converts high
pressure anhydrous am
monia into a stable cold
liquid and vapor. High
pressure ammonia is
metered through a con
ventional flow regulator into
a conversion chamber. Here
rapid expansion produces
cooling and releases pent-up
energy.
Output from the converter,
about 85 per cent liquid and
15 per cent vapor, flows into
the soil through tubes con
nected behind shanks or
blades of chisel plows, field
cultivators, or disks.
Pressure in the distribution
system is minimal - near
atmospheric pressure. The
liquid ammonia is ex
ceptionally free-flowing and
moves by gravity into
channels cut into the soil by
tillage tools.
Paul M. Anderson and
William L. Kjelgaard, Penn
State agricultural engineers
who developed the process,
said the system works very
well with chisel plows and
field cultivators. Research is
continuing to apply the
technique to disk tools.
The big saving is in time
and energy, they reported.
Cold-flow ammonia can be
applied at a depth of four to
five inches during chisel
COMPLETE
INC.
Agricultural engineers Paul Anderson, left, and William Kjelgaard, right, with
the new cold flow ammonia application system as installed on a heavy disk for
testing at the Rock Springs Research Center of Penn State’s Agricultural Ex
periment Station.
plowing or cultivating, ment of the cold-flow am
eliminating ' one field monia process was made
operation. The demand for possible through partial
power is less, as well as the' funding from the USS Agri
wear on machinery, because Chemicals division of U. S.
of easier soil trapping of Steel, which has licensed the
cold-flow ammonia. process.
High-pressure anhydrous Ammonia for cold-flow
ammonia, on the other hand, application systems, the
must be placed six to eight Penn State engineers point
inches into die soil using out, must be handled with
special applicators. the same safety precautions
Research and develop- needed for conventional
GUTSHALL’S SILO REPAIR
R.D. 1, Womelsdorf, Pa.
Phone 717-933-4616
or Stanley Gutshall 717-249-1190
+ feed easy double sugar unloader
-|- agromatic single auger unloader
+ Berg ring drive unloader
+ shuttle feeders
+ chain type feeder
+ taper board feeders
-I- belt feeders
+ conveyors
+ Supreme 56" PTO silage blower
+ silage weighers-chute hoppers
+ Weaverlme feed carts
+ Ritchie cattle and hog waterers
-1- water bowls and stalls
+' fans and ventilations
JUNE DAIRY MONTH SPECIAL MSm
10% Off.
Lancaster Farming, Saturday, June 25.1977—35
application systems.
New
vehicle
code
[Continued from Page 1]
temporary. “There were too
many amendments to be
taken care of before the July
1 deadline,” Lammb told
Lancaster Farming. “This
will hopefully give us some
time to work up practical
regulations,” he added.
Fanners may continue to
operate their farm im
plements as they have been,
said Lammb, explaining that
implements up to 14% feet in
width cm still be taken on
the road without a permit.
Self-propelled combines
require a permit, however, if
they’re travelling on the
road. Limits for the
operation of a farm truck
remain unchanged.
Changes in the motor
vehicle code which apply to
farmers will be acted upon at
unannounced future dates.