Crop Production Lab 7

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15 Terms

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R1

Silk

<p>Silk</p>
2
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R2

blister

<p>blister</p>
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R3

Milk

<p>Milk</p>
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R4

Dough

<p>Dough</p>
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R5

Dent

<p>Dent</p>
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R6

Black Layer

<p>Black Layer</p>
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hypogeal emergence

cotyledon stays below ground, epigeal elongates

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common corn varieties

Dent corn: most common in US

Sweet corn: valuable specialty direct-to-consumer crop

popcorn: hard kernels

flint: heirloom, older

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Nitrogen deficiency sign

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Phosphorus Deficiency

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Potassium Deficiency

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critical range for corn

86 degrees to 50 degrees Fahrenheit

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GDD equation

((daily max+ daily min)/2)-50

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What is the correct sequence of corn reproductive stages

Silking, blister, milking, dough, dent, black layer

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how do you determine corn vegetative stages?

count the nodes