UNIVERSITY PARK
paction of soil remains a serious
problem for many farmers, says
R. Damn, Penn State
agricultural engineer.
When we talk about compaction
we are really talking about soil
structure, he explains. Soil
structure refers to the soil par
ticles sand, silt, and clay and
how they are arranged. The space
. J Jj
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PEOPLE’S
SALES ft SERVICE
Oakland Mills, PA
717-463-2735
N.G. KERSHEY ft SON
Manheim, PA
717-665-2271
A. L. HERR ft BRO.
Quarryville, PA
717-786-3521
S. JOHNSON HURFF
Pole Tavern
Monroeville, NJ
609-358-2565 or
609-769-2565
Soil compaction remains serious problem
between soil particles or
aggregates is called pore space.
Pore space contains the water
films on the soil particles and the
oxygen necessary for germination
and plant growth. An ideal soil will
contain 50 percent pore space with
half occupied by water and half by
air.
Com-
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Chambersburg, PA
717-263-8424
ZOOK’S FARM STORE
Honey Brook, PA
CHAS. J. McCOMSEY
ft SONS
Hickory Hill, PA
215-932-2615
WERTZ GARAGE
Lmeboro, MO
301-374-2672
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LEBANON VALLEY MfiLER EBWPMENT CO.
IMPLEMENT CO., INC. rdi
Richland, PA
717-866-7518 215-845-2911
ARNETT’S GARAGE
Rt. 9 Box 125
Hagerstown, MD
301-733-0515
CLAIR J. MYERS
Lake Road R 1
Thomasviile, PA
717-259-0453
UMBERGER’S MILL
Rt 4 Lebanon, PA
(Fontana)
717-867-5161
systems that produce annual
tillage operations, our soils are
becoming compacted. This means
pore space is reduced resulting in
poor drainage, lower water
storage capacity and even poor
root penetration. Also, alter the
ram, plant growth sufters trom
lack of oxygen because water tills
all the available pore space.
Daum recommends serveral
>-cjsstnafiewsaissesa
1.1, 1982
Sei
BINKLEY &
HURST BROS.
133 R'Othsville
Station Road
Lititz, PA
717-626-4705
PETERMAN FARM
EQUIPMENT, INC.
225 York Rd
Carlisle. PA
717-249-5338
ways to reduce soil compaction.
Reduce the number ot trips over
the field by combining implements
and operations; this will also save
fuel. Reduce the number of tillage
operations; consider no-tillage or
minimum tillage practices. Don’t
overwork the soil and don’t work
the soil when it is too wet.
Reduce tire pressure; high tire
pressure concentrates the
equipment weight on a small tire
soil contact area resulting in ex
cessive pressure in the wheel
track. Use wider, so-called
"floatation” tires; dual tires are
still better.
Another approach is to add
organic matter such as manures or
cover crops. The organic matter
helps by making the soil
171 Quarry Rd.
Leola, PA 17540
(717)656-6913
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Lancaster Farming, Saturday, April 17,1982—09
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aggregates the large and small
clods more stable. They will
support equipment better without
pulverizing and compactuig.
Damn says that sometimes a
switch in equipment may help. For
example, some report that a chisel
plow will help break up the “plow
pan” caused by moldboard plows.
However, be careful that new
equipment doesn’t require bigger,
heavier tractors or more trips over
the field.
Check your fields for soil com
paction, Daum urges. Symptoms
include shallow root penetration,
poor drainage, poor water holding
capacity, large clods, poor crop
performance and crusting.
Potential yields and profits can be
lost by excessive soil compaction.
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