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This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Vigna unguiculata subsp. unguiculata
Synonyms: V. sinensis

Common Name(s): Cowpea; blackeye pea
Family: Fabaceae
Growth Habit: Annual
Invasiveness:
Growing Days: 60 to 240 (days)
Temperature:
Abs.Max=104° (F)    Opt.Max=95° (F)
Opt.Min=68° (F)    Abs.Min=50° (F)
Precipitation: 24 to 60 (in.)
Winter Minimum:
Soil pH: 5.5 to 7
Soil Texture/Type: Medium textured
Soil Drainage: Well
Photoperiod Response: Short day and day neutral
Light Intensity: Bright to clear
Comments:
Sensitive to frost in both spring and fall.
Diseases:
Pythium, Phytothora, Sclerotinia, Cercospora, Anthrachose, Powdery Mildew, Rust
Uses:
Animal Food - forage, Animal Food - fodder, Food - vegetable, Environ. - soil improver
Woodiness:
Herbaceous
Climate:
Subtropical, steppe and semi-arid, tropical-rainy
Geographical Origin:
Subtropics, Tropics

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Last Modified: March 15, 2021
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