Onion Crop Guide
Onion is a major bulb crop grown in India. It requires careful management during bulb formation stage. Proper nutrition and disease prevention are critical for good bulb size and quality.
Growth Timeline
Onion Growth Stages
Germination
Duration: 7–10 days
Tiny seedlings emerge. Keep beds moist and weed-free.
Leaf Growth
Duration: 30–40 days
Leaves develop and expand. This stage determines potential bulb size.
Bulb Formation
Duration: 20–30 days
Bulbs begin to form at the base. Increase phosphorus and potassium supply.
Bulb Maturity
Duration: 15–20 days
Bulbs reach full size. Neck falls over naturally when mature.
Harvest
Duration: 80–120 days from sowing
Harvest when tops dry and fall over. Cure bulbs before storage.
Our Solutions
Recommended Vyoma Products for Onion
Application Guide
Spray Schedule for Onion
Protection Guide
Common Pests & Diseases in Onion
Downy Mildew
DiseaseSymptoms: Purple-gray fungal growth on leaves. Leaves yellow and die back.
Recommended: Vyoma Arka
Purple Blotch
DiseaseSymptoms: Purple to brown spots with concentric rings on leaves.
Recommended: Vyoma Arka
Thrips
PestSymptoms: Silver streaks on leaves. Bulb quality reduced.
Recommended: Vyoma Rudra
Nutrition Guide
Nutrient Deficiencies in Onion
Sulfur Deficiency
Symptoms: Pale green leaves, poor bulb development
Solution: Apply sulfur-rich fertilizer. Essential for bulb pungency.
Phosphorus Deficiency
Symptoms: Stunted root and bulb growth
Solution: Apply phosphorus at bulb initiation stage.
Feeding Program
Nutrition Schedule for Onion
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