Vegetables· Allium cepa
Guide de culture du Onion
Essential culinary vegetable used worldwide. Available as bulb, green, or shallot types. Good storage crop with many variety options.
Conditions de croissance
Exigences du sol
Type de sol et pH
Meilleurs types de sol : loam, sandy loam, muck soils
Plage de pH : 6 - 7 (optimal : 6.5)
Drainage : excellent
Besoins en nutriments (N-P-K)
Guide de plantation
Rendement et économie
Ravageurs et maladies courants
Ravageurs courants
- Onion thrips
- Onion maggot
- Nematodes
Maladies courantes
- Purple blotch
- Downy mildew
- Botrytis
- Pink root
Utilisez la pour identifier les problèmes tôt et prévenir les pertes de récolte.
Conseils de culture
Choose correct day-length variety for your latitude
Keep weed-free as onions compete poorly
Stop watering when tops begin to fall
Cure onions for 2-3 weeks before storage
Apply nitrogen early, stop 4 weeks before harvest
Questions fréquentes
How long does Onion take to grow?
Onion typically takes 100 days from planting to harvest. Seeds germinate in about 10 days. The best planting season is spring, fall.
What soil does Onion need?
Onion grows best in loam, sandy loam, muck soils soil with a pH of 6-7. Excellent drainage is required.
What temperature does Onion need?
Onion grows best at 13-24°C. Frost tolerance: light. Heat tolerance: moderate.
What is the expected yield for Onion?
Onion yields approximately 45,000 kg/hectare under good conditions.
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Termes agronomiques clés
Les concepts agricoles essentiels, expliqués simplement.
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