TEA NUTRITION

Copper Deficiency in Tea

Identify Copper (Cu) deficiency symptoms, understand causes and apply the correct treatment for Tea grown in India.

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🔍 Symptoms

Wilting of young leaves, tip die-back, blue-green discolouration. In cereals: "reclamation disease" — twisted leaves, empty grain. In trees: "exanthema" — gum exudation, bark cracks.

🧩 Cause

High pH soils, high organic matter soils (organic matter binds copper), over-application of phosphorus or nitrogen.

🌿 Crop Info

Region: India
Soil: Loamy
Season: Year-round

Correction Methods for Tea

ProductMethodRateBest For
Copper EDTA 15%Foliar + Drip0.3g/L foliar, 200g/acre dripFast correction
Copper Sulphate 25%Soil + Foliar2–5g/L foliar, 3–5 kg/acre soilSoil correction, also fungicide

Step-by-Step Treatment Plan

  1. Confirm deficiency — Take leaf and soil samples. Send to lab or use visual diagnosis. Soil pH test critical (check at root zone depth).
  2. Immediate foliar correction — Apply Copper EDTA 15% at 0.3g/L foliar as emergency foliar spray. Spray in morning or evening. Repeat after 7–10 days.
  3. Drip/soil correction — Apply via drip fertigation or soil for lasting correction. Single foliar application is temporary fix only.
  4. Soil amendment — If soil pH is the cause: apply gypsum to reduce pH in alkaline soils, or lime if acidic. Target pH 6–7.
  5. Prevent recurrence — Include micronutrient schedule in regular fertigation program. Soil test every season.

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