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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: |
Result of a cross between inbreds B73
and Mo17 |
