12—Lancaster Farming, Saturday, September 18,1971
Researcher Tells:
How to Get Maximum
At a local Trojan seed corn
meeting this week, farmers
were told that achieving maxi
mum yields depends largely on
following several basic man
agement practices.
Dr. Dave Nanda, Trojan re
search director, said these prac
tices include:
' Fix a realistic goal of
how much corn should be
grown on a particular piece of
ground. Determine the yield
potential of the soil by testing
it and getting the advice of
competent persons, such as Ex
tension agents.
Fertilize to make sure
that the ground has enough nu
trients of various types to pro
duce the maximum yield
sought. For instance,- a 150
bushel per acre corn crop uses
up 200 pounds of nitrogen, 100
pounds of phosphate and 125
pounds of potash per acre. If
these levels of nutrients are
not in the ground, the farmer
cannot expect to get 150 bush
els, Nanda explained.
Plant early. All the plant’s
leaves should be out by June
21, the longest day of the year.
The greatest amount of sunlight
is available the 15 days before
and after June 21. The corn
needs this maximum amount of
sunlight in order to achieve
maximum yields, Nanda said.
Control weeds, insects and
diseases. These rob yields.
While the introduction of near
ly all N seed next year should
eliminate Southern corn blight,
farmers can still expect trouble
from Northern leaf blight and
perhaps yellow leaf blight, Nan-,
da said He noted that some
corn varieties are showing resis
tance, however, particularly to
yellow blight. He also noted the
importance of controlling corn
rootworm.*
Use proper harvest proce
dures Proper operation of har-
Dave Nanda, Trojan seed
research director, emphasizes
a point to local farmers.
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vesting equipment can save 10
bushels per acre, he stated.
In other comments Nanda
was critical of the use of ma
chines for detasseling seed
corn. He said the machines tend
to cut off several of the top
leaves; since 95 per cent of the
corn crop is made from leaves
above the ear, loss of these top
leaves “will reduce the vigor of
next year’s crop.” He said his
firm hired several thousand
youths this summer for hand
detasseling.
Nanda also urged farmers to
realize the difference between
what he called a single cross
and a modified single cross. He
explained that the modified
cross can be produced much
cheaper because the seed crop
yields more per acre. But he
told farmers that they can
normally expect a reduced yield
from a modified single cross as
compared to a single cross.
While Nanda urged farmers
in Southeastern Pennsylvania to
use N seed next year, he in
dicated that T seed will be
available. He projected that
much T seed probably will be
used in the western dry areas
and northern areas where
Southern blight has not been a
factor, and where the lower
priced T seed will get as good
results as the higher priced N
seed.
He said he would anticipate
that no-till fields would have a
higher incidence of insects and
disease problems than plowed
fields.
While this part of Pennsyl
vania is experiencing much
blight damage, Nanda said most
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Corn Yields
of the country is having less
blight this year because N corn
was used extensively in the
Southern states. This kept
blight under control in the
South so that it didn’t blow
North as much as last year.
On the question of why a
farmer with two N fields had
one damaged and one not dam
aged by Southern blight this
year,- Nanda said the damage
may have occurred from the
yellow blight. If it actually was
Southern blight, it probably
means there was a mistake and
the seed probably was not ac
tually N seed, he said.
Following the brief talk in a
corn shed on the Eugene
Hoover farm near Neffsville,
Nanda led a tour of test plots of
Local farmers listen as a Trojan repre
sentative discusses the merits of various
For Further Information Call
Eugene Hoover, left, local Trojan seed representative, and
Alton D. Carl, owner of Carlton Seed Company, distributor of
Trojan seed in eastern Pennsylvania and New York, examine
some Trojan TXS 113, considered one of the firm’s best varie
ties. This variety has long kernels and a relatively small cob,
a trait which the company attempts to develop.
various Trojan varieties, com- recommendations on how to use
mented on each and made them.
JL
varieties of corn seed available to farmers.
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