READ LANCASTER FARMING
FOR FULL MARKET REPORTS
P. L ROHRER & BRO., INC.
SMOKETOWN
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v
H. M. Stauffer & SODS, IUC. The Beacon Milling Company, Inc.
1 eola Pa Headquarter*: Cayuga, N. Y.
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Phone Lane. 397-3539
CONTACT THE FOLLOWING BEACON DEALERS OR CALL COLLECT
TO BEACON 717-843-9033
H. Jacob Hoober
Intercourse, Pa
*6.00 Per Ton Discount
ON BEACON DAIRY PELLETS
BEGINNING MARCH 5 THRU APRIL 27
Herbicides and Soil Microbiology
Chemicals for controlling
weeds are now used on most of
the cropland in United States
reports A E Hiltbold, soils
specialist at Auburn University.
In addition to controlling weeds,
these chemicals must leave the
soil and environment without
harmful residues or decreased
productivity
Talking at the 13th annual
Weed Science Society of America
meeting, he said the fate of
herbicides in soil depends to a
large extent upon myriad
microorganisms that normally
inhabit all soils and carry out
essential processes such as
decomposition of plant residues
Synthetic organic herbicides
differ appreciably from the usual
organic substances on which
microorganisms grow
Unless the microorganism has
the necessary enzymes to
degrade the substance and derive
some benefit from it there will be
little breakdown and the sub
stance will persist With her
bicides such as 2,4-D it was found
that certain members of the soil
microbial population developed
the enzymatic ability to degrade
the herbicide after a short period
of exposure The practical result
of this is that although an initial
UNCO BEDDING
FOR POULTRY & LIVESTOCK
WOOD SHAVINGS
BEACON FEEDS
application of 2.4-D may appear
persistent in the soil, later ap
plications decompose rapidly
Other herbicides such as the
triazmes do not stimulate this
sort of microbial response Ap
parently the complement of
enzymes necessary for useful
metabolism of the triazmes is not
developed in soil micro
organisms Thus. a
piecemeal breakdown occurs,
with the molecule chipped away
by enzymes associated with
metabolism of the normal
organic substances of the soil
One of the practical results of
this is that the rate of breakdown
depends on the rate of overall
microbiological activity in the
soil Increasing the soil tem
perature or adding decomposable
organic matter will speed up
microbial activity and in
cidentally increase the
degradation of the herbicide
Another practical effect of this
is that the amount of herbicide
involved in degradation depends
on its concentration in the soil
When the herbicide is abudnant
the likelihood of its being acted
upon by microorganisms is
greater then when it is more
dilute
CALL 299-3541
• 16%
• 18%
• 16%
• 30%
• 16%
Lancaster Farming, Saturday, March 3,1973
LACTO
LACTO
MILKLINE PELLETS
HMC PELLETS
HI ENERGY PELLETS
0. Kenneth McCracken & Son
Manheim, Pa
Earl Sander, Inc.
New Holland, Pa
Po. Broiler
Placements
Down 8 pet
Placements of broiler chicks in
the Commonwealth during the
week ending February 24, 1973
were 1,196,000 The placements
were 8 percent below the
corresponding week a year
earlier but 6 percent above the
previous week Average
placements during the past 10
weeks were 3 percent above a
vear earlier
Settings for broiler chicks were
2 049.000 - 2 percent above the
previous week and 12 percent
above the comparable period a
vear earlier The current 3-week
total of eggs set is 4 percent
above the same period a year
ago
Inshipments of broiler-type
chicks during the past 10 weeks
averaged 6,000 compared with
8 000 a year ago Outshipments
averaged 232,000 during the past
10 weeks. 4 percent above a year
earlier
Placements in the 22 States
were 66.641,000 - 1 percent below
•he previous week but 10 percent
below the same week a year
earlier Average placements
during the past 10 weeks were 5
percent below a year ago
Settings were 75,940,000 - ?
percent above the previous week
but 3 percent below a year
earlier The current 3-week total
of eggs set is 5 percent below the
comparable period a vear ago
TRY A
CLASSIFIED AD!
PHONE 626-2191
or 394-3047
*$
PELLETS
PELLETS
15