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Primary Uses: |
grain |
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Planting: |
Plant between April 15 and May 10 in
Ohio. Plant to a depth of 1.5 to 2 inches. |
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Seeding Rate: |
Actual seeding rate depends on the
variety, soil type and yield goals. Most varieties yield best
between 22,000-30,000 plants/acre. A general figure often used
is 26,000 plants/acre. |
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Fertility: |
Soil pH should be at least 6.5 or
above. Corn uses large amounts of Nitrogen. The total
amount applied depends on yield goals and overall management.
For 120 bu/acre yield, about 140 lbs. N/acre should be
applied. For 160 bu/acre yield, about 190 lbs N/acre should be
applied. Depending on economics of application, it is best to
apply N in split applications, with a small amount at planting and
the remainder sidedressed before the 10 week after planting.
Application of P and K should follow soil test recommendations. |
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Insects: |
Insects causing problems at germination
include seedcorn maggots, cutworms, grubs, and wireworms. The
European Corn Borer affects some fields from growth stage V8 and
on. Corn rootworm may also cause problems evidenced by lodging
at growth stage V12. Japanese Beetles may clip silks causing
lowered pollination. Aphids rarely cause economic
losses. Second brood European Corn Borers can be a problem by
feeding on developing ears. The most economical control is
selection of resistant varieties. |
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Diseases: |
Common Stalk Rots include Anthracnose,
Giberella and Fusarium. Leaf Blights include Northern Corn
Leaf Blight, Grey Leaf Spot and Stewart's Wilt. Virus diseases
affecting corn include Maize Dwarf Mosaic and Maize Chlorotic
Dwarf. Ear and stalk rots occurring commonly in corn include
Giberella, Diplodia and Fusarium. The most economical control
is selection of resistant varieties. |
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Harvest: |
Shell corn with a combine when seed is
mature and dry. All field shelled corn with more than 15
percent moisture must be dried for safe storage. |
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Comments: |
Dekalb 63-74 is a triple stack hybrid incorporating
herbicide resistance, rootworm resistance, and borer resistance.
TCS
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