Phosphorus Deficiency in Blueberry India — Symptoms, Causes & Correction

Dark green or purple-red coloration on older leaves. Stunted root development, delayed maturity.

Cold soils, acidic soils (P fixed by Al/Fe), alkaline soils (Ca phosphates).

Himachal Pradesh, Uttarakhand
Sandy, acidic pH 4.5–5.5

Correction Products & Doses

Product	Method	Rate	Best For
DAP 18:46:00	Soil	20–30 kg/acre basal	All crops at sowing/planting
MAP 12:61:00 WSF	Drip	2–3 kg/acre	Drip at transplanting and flowering
MKP 00:52:34 WSF	Drip	2 kg/acre at flowering	Zero N at flowering stage
SSP	Soil	50 kg/acre	Basal — also provides sulphur

Confirm deficiency — Soil test + leaf analysis. Check soil pH (most deficiencies are pH-related).
Immediate foliar spray — Apply DAP 18:46:00 at 20–30 kg for fast correction. Repeat after 7–10 days.
Drip correction — Apply via fertigation for lasting effect.
Prevent recurrence — Include in regular nutrition program. Test soil pH and adjust if needed.

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