Advisory for the Month of July 2025
A. For Stored Rabi Onion and Garlic Bulbs
- Monitor stored bulbs regularly for sprouting and rottage. Remove rotted and bruised bulbs immediately. Ensure proper ventilation.
- Onion bulbs should be spread with a heap height of up to 4-5 feet only.
- Garlic bulbs with leaves should be stored in ventilated structures by hanging or in circular heaps tapering towards the top.
B. For Raising Kharif Nursery
- Sow seeds now without delay in areas with onset of rain.
- 0.05 ha nursery bed and 5–7 kg seed recommended for 1 ha transplanting.
- Deep ploughing to expose pests and weeds to sunlight is advised.
- Remove debris, weeds, and stones before bed preparation.
- Apply 0.5 t well-decomposed FYM in 0.05 ha.
- Prepare raised beds: 10–15 cm height, 1 m width, convenient length.
- Apply pendimethalin @ 0.2% as pre-emergent herbicide.
- Treat seeds with carbendazim @ 1–2 g/kg seed to avoid soil-borne diseases.
- Apply Trichoderma viride @ 1250 g/ha for damping off control.
- Sow seeds in lines 50–75 mm apart; cover with FYM/compost, water lightly.
- Weed by hand at 20 days after sowing.
- Apply 2 kg N per 500 sq.m after weeding.
- Spray benomyl @ 0.2% to manage diseases.
- For severe thrips, spray fipronil/profenophos @ 1 ml/L.
- Spray mancozeb/tricyclozole/hexaconazole @ 0.1% as required.
C. Main Field Preparation for Kharif Onion
- Thorough ploughing and disking to remove clods and debris.
- Apply FYM @ 15 t/ha or poultry manure/vermicompost @ 7.5 t/ha at final ploughing.
- Form BBF: 15 cm high, 120 cm wide, 45 cm furrow to drain water and reduce anthracnose.
- BBF is suitable for drip and sprinkler systems.
- Drip: 2 laterals per BBF (16 mm), 60 cm apart, emitters @ 30–50 cm, 4 L/hr.
- Sprinkler: 20 mm laterals, 6 m apart, 135 L/hr discharge.
D. For Transplanting Seedlings (Kharif Season)
- Fertilizer dose: 110:40:60 N:P₂O₅:K₂O kg/ha + 15–30 kg sulphur/ha based on soil levels.
- With drip: Apply 40 kg N at transplanting; rest in 6 splits every 10 days for 60 days.
- Use biofertilizers: 5 kg/ha each of Azospirillum and PSB as basal dose.
- Pre-emergent weed control: oxyflurofen @ 1.5–2.0 ml/L or pendimethalin @ 3.5–4 ml/L.
- Use 35–40 day old seedlings; spacing: 15 cm × 10 cm.
- Use healthy seedlings only; trim top 1/3rd before planting.
- Dip roots in 0.1% carbendazim before planting to reduce fungal disease risk.
- Irrigate at transplanting and again 3 days later for better establishment.
Note: Carbosulfan, profenophos, fipronil, spinosad, and methomyl should be used only if thrips are visible. Mancozeb, hexaconazole, propiconazole, and tricyclozole should be applied only upon visible disease symptoms.