How to Grow DeKalb SX17 Corn
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DeKalb SX17 Corn
Zea mays
vegetableDeKalb SX17 is a hybrid field corn variety bred for grain production, known for its strong stalk and reliable yields. This variety is designed for commercial and large-scale farming operations in temperate climates. It produces tall plants with multiple ears suitable for mechanical harvesting and storage.
When should you plant DeKalb SX17 Corn in your zone?
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Example DeKalb SX17 Corn timeline · Pittsburgh, PA (Zone 6b)
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Plant DeKalb SX17 Corn
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest DeKalb SX17 Corn
Around Jul 26≈ 100 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact DeKalb SX17 Corn dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8, particularly suited to the U.S. Corn Belt
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Get my DeKalb SX17 Corn timeline →Growth Stages
Planting & Germination
5-10 days to emergenceSeeds are sown directly into warm soil (50°F minimum, ideally 60°F+). Seedlings emerge 5-10 days after planting.
Ensure adequate soil moisture without waterlogging. Monitor for seed rots in cool, wet conditions. Plant after last frost when soil has warmed.
Vegetative Growth (V1-V8)
3-4 weeksRapid leaf development and root establishment. Plants grow 3-6 inches per week. Multiple whorls of leaves emerge, and tillers may develop.
Maintain consistent moisture. Apply pre-emergence or post-emergence herbicides for weed control. Begin scouting for pests. Avoid mechanical damage to young plants.
Mid-Season Growth (V8-Tassel)
3-4 weeksPlant reaches 24-36 inches tall; ear primordia develop and begin to differentiate. Rapid shoot and root growth continues.
Maintain optimal moisture, especially during this rapid growth phase. Apply foliar nutrients if deficiencies appear. Continue pest and disease monitoring. Apply nitrogen split applications if using this strategy.
Flowering & Pollination (Tassel-Silk)
2-3 weeksMale tassel emerges from plant top; ear shoots develop silks for pollination. Plant reaches full height (6-8 feet typical). Pollen sheds and silk emergence occurs.
Critical water needs—maintain 1.5 inches per week during this stage. Minimize stress to ensure complete pollination. Prevent mechanical damage to tassels and silks. Monitor for corn borers.
Grain Development & Maturity (Blister to Black Layer)
5-6 weeksKernels develop from blister stage through milk, dough, and dent stages, finally reaching physiological maturity with a black layer at kernel base. Plant senesces.
Reduce irrigation frequency as crop approaches maturity. Allow field to dry naturally for mechanical harvesting. Monitor grain moisture (ideal 15-20% for storage). Plan for harvest timing and equipment.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Bt corn hybrids, crop rotation, removal of crop residue, insecticide application if threshold exceeded, monitoring with pheromone traps
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Crop rotation (non-corn year), rootworm-resistant hybrids, insecticidal seed treatments, soil-applied insecticides, monitoring larvae populations
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Scouting for feeding damage, insecticide sprays when threshold reached (typically 25-50% plants with feeding), Bt products, parasitic wasp encouragement
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Monitor populations, beneficial insect habitat, insecticidal soap or oils for severe infestations, rarely require treatment in field corn
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Insecticide sprays if defoliation exceeds 10-15%, early morning removal, pheromone traps (use cautiously to avoid attracting more beetles)
Uses
Animal Feed & Livestock Grain
CulinaryDeKalb SX17 is primarily grown for animal feed, including cattle, swine, and poultry operations. The grain is high in starch and energy content, making it a staple component of livestock rations. [source]
Ethanol & Biofuel Production
CulinaryA significant portion of corn grain from field hybrids like SX17 is processed into ethanol fuel and other biofuel products. The starch content makes it suitable for fermentation and fuel alcohol production. [source]
Industrial & Food Processing
HouseholdField corn provides raw material for corn meal, corn flour, corn oil, high fructose corn syrup, and numerous industrial compounds used in adhesives, plastics, and textiles. [source]
Crop Residue & Soil Management
AgriculturalCorn stalks and cobs serve as biomass for bedding, mulch, or bioenergy. Leaving residue in fields helps maintain soil organic matter and prevents erosion. [source]
Harvest Tips
Harvest when grain moisture reaches 15-20% for safe storage, typically 4-6 weeks after silk emergence. Use mechanical combine harvesters for efficient field-scale harvest. Check kernel moisture with a grain moisture meter. Handle carefully to minimize kernel damage. Time harvest to avoid excessive field traffic that compacts soil.
Fun Facts
- 🌱 DeKalb is one of the oldest and most established corn breeding companies, founded in 1912, and SX17 represents decades of hybrid selection for yield and disease resistance.
- 🌱 Field corn hybrids like SX17 require cross-pollination between two inbred parent lines to produce vigor and consistent yields—a technique that revolutionized agricultural productivity in the 20th century.
- 🌱 Modern corn hybrids are often genetically modified to include Bt toxins (from Bacillus thuringiensis) for built-in insect resistance, and some varieties like SX17 variants may incorporate herbicide tolerance for weed management.
Gardening Terms
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