Key Facts: Varieties — Bhagwa (most popular), Ganesh, Ruby, Mridula, Kesar | States — Maharashtra (Nashik, Solapur, Pune), Karnataka, Andhra Pradesh, Rajasthan, Gujarat | Crop type — Perennial tree — Mrig bahar (June pruning), Hasta bahar (Sept pruning), Ambe bahar (Jan pruning)
Stage-wise Fertilizer Programme
Pre-Pruning Soil Preparation
Before bahar treatment
| Application | Product / Dose / Method |
|---|
| Organic base | FYM 20 MT/ha + Neem cake 200 kg/ha + Trichoderma 2 kg/ha mixed in soil |
| Phosphorus basal | SSP 500 kg/ha or DAP 200 kg/ha incorporated before pruning |
| Zinc + Boron | ZnSO4 15 kg/ha + Borax 5 kg/ha through drip before stress treatment |
Stress Period to Flowering (Week 1–6)
Water stress → bahar treatment → bud break
| Application | Product / Dose / Method |
|---|
| Stop irrigation 45–60 days | Controlled stress triggers uniform flowering in Mrig/Hasta bahar |
| Post-stress irrigation | Resume irrigation after stress — first dose: 13:40:13 @ 2 kg/100L via drip |
| Nitrogen start | Urea 100 kg/ha + CaNO3 50 kg/ha over 4 weeks |
| Boron spray | Borax 0.2% foliar × 2 at bud swell and flower bud emergence |
Flowering to Fruit Set (Week 7–12)
Critical stage — maximise fruit set
| Application | Product / Dose / Method |
|---|
| High phosphorus phase | MAP 12:61:0 @ 2.5 kg/100L × 2 weeks to support flowering |
| Reduce N, push K slightly | Maintain balanced nutrition — avoid luxury N at flowering |
| Calcium spray at petal fall | CaNO3 1% foliar at 50% petal fall → fruit set improvement |
| Micronutrient foliar | Zinc 0.2% + Boron 0.1% + Manganese 0.2% combo spray × 2 |
Fruit Development Phase (Week 13–20)
Cell division and sizing
| Application | Product / Dose / Method |
|---|
| Balanced NPK | 19:19:19 WSF @ 2.5 kg/100L × 3 weeks |
| Nitrogen maintenance | Urea 120 kg/ha over 8 weeks via fertigation |
| Calcium emphasis | CaNO3 60 kg/ha fertigation + CaCl2 0.5% foliar × 3 — prevents fruit cracking |
| Potassium start | MOP 80 kg/ha from week 16 onwards |
Fruit Maturity Phase (Week 21–28)
Colour development and Brix improvement
| Application | Product / Dose / Method |
|---|
| Heavy potassium | SOP 0:0:50 @ 4 kg/100L × 6 weeks for aril colour and sugar |
| MKP foliar | MKP 0.3% foliar × 3 for final Brix push |
| Stop nitrogen completely | No nitrogen from colour break — prevents split fruits |
| Sulphur management | Wettable sulphur 2 kg/ha for disease management |
Micronutrient Programme
| Nutrient | Recommended Dose & Method |
|---|
| Zinc (Zn) | 15 kg/ha ZnSO4 soil + 0.2% foliar 3× |
| Boron (B) | 5 kg/ha Borax soil + 0.1% foliar at flowering × 2 |
| Calcium (Ca) | CaNO3 60 kg/ha fertigation + CaCl2 0.5% foliar 3× |
| Iron (Fe) | FeSO4 25 kg/ha soil + chelated Fe foliar 0.1% if yellowing seen |
Deficiency Signs to Watch For
| Deficiency | Symptoms & Identification |
|---|
| Zinc deficiency | Small narrow leaves, interveinal chlorosis, reduced fruit size and poor colour |
| Boron deficiency | Poor fruit set, abnormal flower development, crinkled young leaves, dry fruit inside |
| Calcium deficiency | Fruit cracking (splitting) is the main symptom — preventable with regular Ca programme |
| Iron deficiency | Yellowing of young leaves (interveinal), most common on calcareous soils |
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