Renk Seed 2021 Seed Catalog

CORN MANAGEMENT
Modern corn hybrids are selected and bred to perform even under high-stress conditions. Maximizing the quality of the environment the hybrid
is planted in while minimizing yield-robbing stresses creates a successful year. You can’t control the weather but, beyond that, there are a few
things you can have a say in. Good management quickly pays for itself in increased yield.
PRE-PLANT
FERTILITY NEEDS
Make certain that your fertility and soil pH match your yield
expectations. Test your soil to know exactly what you need
and follow the recommendations. Remember that nitrogen
requirements for corn on corn are signifi cantly higher than
for corn on rotated ground.
WAIT FOR “FIT” FIELD CONDITIONS
Research has shown that in most years earlier planted corn
will outperform later planted corn. This should give you a
desire to get the seed in as early as possible. With modern
seed treatments, soil temperature is not as big of a factor as
it once was, but having a good seed bed is a must. Excessive
soil moisture and poor soil tilth have major impacts on seed
germination, early growth and seedling health. Soil compaction
and poor seed-to-soil contact set the crop up for poor stands
and weak, late emerging plants.
REVIEW HYBRID POSITIONING INFORMATION
Make sure you have the right hybrids selected for the right
ground. Ground with limited yield potential makes it hard to
justify the more expensive traited hybrids. Corn on corn
ground usually requires hybrids with stronger roots and stalks
along with insect protection. Also, some hybrids have regional
tendencies. Your Renk Seed representative is your resource in
getting the right products in the right ground. A great product
that is not positioned accurately may only perform as well as
an average product, or even worse.
AT PLANTING
PLANTER AND MONITOR ADJUSTMENTS AND CALIBRATION
Spend the time and the money here for accurate, consistent
drop. An accurate population of evenly distributed seed
without doubles and skips is critical for maximum yields.
Even if no changes are necessary, it is worth peace of mind
to know that there will not be a yield bottleneck.
PLANTING DEPTH
Check your planting depth often, not just when you enter your
fi rst fi eld, but every time you begin planting in a different fi eld
condition (soil type, crop rotation, tillage type, etc). Each of
these impacts the depth of seed placement. Keeping the
depth between 1.75"-2.25" is critical to a uniform distribution
of evenly growing plants as well as keeping the root system of
the plants deep enough to be effective and strong.
CORRECT SPEED
No other way to say it: Speed kills. Planting at speeds
greater than the recommended zone for your planter causes
planter bounce which results in uneven seed placement. This
dramatically increases the numbers of doubles and gaps;
these lead to unproductive or underproductive plants.
Speeding may cost 10-20 bushels per acre yield loss.
GROWING SEASON
SCOUT YOUR FIELDS EARLY AND OFTEN
It is hard to fi x or head off problems if you are not actively
looking for them. It is important to check for crusting, weeds,
diseases and insects starting shortly after planting and
continuing up to harvest.
CONTROL THOSE WEEDS
Just remember that weeds taller than 4" will reduce your yield.
Starting clean with a burn-down or plowed fi eld helps the corn
get ahead of the weeds and gives a good window for follow up
spraying as needed.
CONTROL FUNGAL DISEASES
Fungal diseases can be a signifi cant yield drag and need to be
scouted for. Corn on corn acres tend to have a higher rate of
incidence, along with fi elds that have shown a history of
disease. Often a folial treatment can work wonders.
Remember you normally need to order fungicides and contract
application early.
CONTROL INSECTS
Using genetic traits to control Corn Borers, Rootworms,
Ear Worms and Western Bean Cutworms is clearly the best
insurance against damage from these yield-robbing insects.
Your Renk Seed representative can prescribe the best trait
options for your operation. Those not using traited insect
control hybrids need to spray insecticides to control
explosions of insect pest populations.
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