Growing corn
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Corn growth and development stages
It’s important that producers understand corns’ growth and development stages, and how to handle issues such as flooding, dry weather, frost, wind and hail.
Crop and weather damage
How to manage flooded or saturated conditions
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Assessing damage.
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Deciding whether or not to replant.
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Nitrogen management: Spotting deficiency and determining if you need supplemental N.
How heat and water stress affect corn while it’s pollinating
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Know the most critical time to avoid corn stress.
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At what temperature heat stress occurs.
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Impact on pollination and kernel count.
What to do when spring frost damages your Minnesota corn crop
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Symptoms of frost-injured corn.
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How to tell if plants will survive.
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Which factors determine if frost will reduce yield.
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What to consider before you replant.
How to handle hail and wind damage to Minnesota corn
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Assessing damage: Stem bruising, root lodging, stalk breakage and whorl damage.
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How to tell if a corn plant will survive and regrow.
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Guide to estimating yield loss.
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When you should and shouldn’t replant.
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Caring for damaged fields.
How hail and wind impacts on pollinating corn, including the following effects:
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Loss of leaf area.
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Stem bruising.
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Root lodging.
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Stalk breakage.
Early frost can mean yield loss for corn producers, although the damage’s severity varies depending on local climate conditions, crop maturity and topographical features.
Guide to managing early fall frost
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Symptoms of frost damage and severity.
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Impact on corn yield and moisture.
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How frost affects crop quality and dry-down rates.