Iron Deficiency in Cotton Bt

Symptoms

Sharp interveinal chlorosis on youngest leaves. Green veins on yellow/white leaf.

Cause

pH>7.5 locks iron as Fe(OH)₃. Black cotton soils Maharashtra.

Correction Products

Product	Method	Rate
Iron EDDHA 6%	Soil	1.5–2 kg/acre (pH>7.5 ONLY)
Iron DTPA 11%	Foliar + Drip	2–3g/L foliar / 500g/acre drip

Treatment Steps

1. Confirm with soil test + leaf analysis. Check soil pH.
2. Apply Iron EDDHA 6% at 1.5–2 kg as emergency foliar spray. Repeat after 7–10 days.
3. Apply drip or soil for lasting correction.
4. Include in regular nutrition program to prevent recurrence.

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