SUNFLOWER

Calcium Deficiency in Sunflower

Identify calcium deficiency in Sunflower crops in Karnataka, AP, Maharashtra — symptoms, soil causes and correct treatment with product doses.

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🔍 Symptoms

Blossom end rot, tip burn, fruit cracking, poor cell wall. Young tissue affected first.

⚗️ Cause

Inconsistent irrigation, excess N+K, high humidity, root damage.

📍 Sunflower Region

Karnataka, AP, Maharashtra
Loamy, pH 6–8

Correction Products & Doses

ProductMethodRateBest For
Calcium NitrateDrip2–3 kg/acre/weekPrimary N source for drip crops
Calcium EDTA chelatedFoliar2–3g/L weeklyFast correction, prevent BER
Calcium Chloride 77%Foliar3–5g/L post-harvestApple bitter pit, storage quality

Treatment Steps

  1. Confirm deficiency — Soil test + leaf analysis. Check soil pH (most deficiencies are pH-related).
  2. Immediate foliar spray — Apply Calcium Nitrate at 2–3 kg for fast correction. Repeat after 7–10 days.
  3. Drip correction — Apply via fertigation for lasting effect.
  4. Prevent recurrence — Include in regular nutrition program. Test soil pH and adjust if needed.

Get Calcium Nitrate for Sunflower

Direct from manufacturer. Share your soil test and we recommend exact dose for your farm.

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Other Deficiencies in Sunflower

Zinc DeficiencyIron DeficiencyBoron DeficiencyMagnesium DeficiencyManganese Deficiency

Related Crop Guide

Fertilizer for Sunflower → 📊 Dose Calculator
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