Onion

प्याज (Pyaj)

📖 Allium cepa L.

Verified Agricultural Data (NARC) Vegetables 📅 Kartik (कार्तिक) – Baisakh (बैशाख) 🌡️ 13–28°C ⚗️ pH 6.0–6.8 ⏱️ 110-140 days

Growing Season & Schedule

🌱

Recommended Growing Window: Kartik (कार्तिक) – Baisakh (बैशाख)

Onion takes 100 to 120 days from seedling transplanting to harvest. Seedlings prepared in Kartik-Mangsir are transplanted in Poush-Magh for spring-summer harvest.

Description & Overview

Fundamental culinary bulb in Nepalese kitchens. Grown from seedlings raised in late autumn nurseries and transplanted into raised beds for dry spring harvesting.

Details & Agronomic Insights

🌟 Positive Attributes & Health Benefits

Excellent source of quercetin (potent flavonoid antioxidant), sulfur compounds, Vitamin C, and prebiotic inulin fiber. Supports cardiovascular circulation and gut bacteria.

⚠️ Precautions & Adverse Notes

High fructan content can trigger bloating and gas in FODMAP-sensitive individuals; raw onions can induce gastric reflux.

🐛 Major Diseases & Pests

Purple Blotch (Alternaria porri), Downy Mildew, Basal Rot (Fusarium oxysporum), and Onion Thrips.

💊 Disease & Pest Solutions

Spray Mancozeb (2.5 g/L) or Tebuconazole (1 mL/L) with sticking agent for purple blotch.
Ensure proper 4-year crop rotation to eliminate soil-borne basal rot fungi.
Spray Spinosad (0.5 mL/L) or neem extract for thrips control.

🧪 Fertilizer & Nutrition Recommendations

20-25 tons FYM/ha. NPK: 100:50:60 kg/ha. Apply 50% N with full P and K at transplanting; top-dress remaining N in two equal splits at 30 and 45 days.

Planting & Cultivation Guide

🌱 Planting Method Direct Seeding

📏 Seed Depth 2.0 cm

↔️ Seed Spacing 30.0 cm

📐 Row Spacing 60.0 cm

🪱 Soil Type Well-drained fertile loam

💧 Water Requirement Medium (450-600 mm, regular watering)

☀️ Sunlight Full Sun (6-8 hours direct)

🧪 NPK Dose 100:60:40 NPK kg/ha

Climate & Altitude Requirements

⛰️ Altitude Range 100–2000 m

🗺️ Suitable Regions Terai, Mid-Hills

🌡️ Temperature Range 13–28°C

⚗️ Optimal pH 6.0–6.8

Harvest Information & Yield

⏱️ Maturity Days 110-140 days

📦 Expected Yield 15 - 25 t/ha

🔍 Harvest Indicators:

Harvest when crop reaches optimal market maturity and full color

Crop Photo Gallery

प्याज (Pyaj) (Primary Photo)

Seasonal Calendar — रोप्ने पात्रो

Activity / कार्य	Start Month (BS)	End Month (BS)	Region / क्षेत्र	Gregorian Window
🌱 Sowing	असोज (Ashwin)	कार्तिक (Kartik)	All Nepal	September - November
🌾 Harvesting	मंसिर (Mangsir)	माघ (Magh)	All Nepal	November - January
🪴 Nursery	मंसिर (Mangsir)	मंसिर (Mangsir)	All Nepal	November - December

Quick Reference

Verified

🌱 Method Direct Seeding

📅 Season Kartik (कार्तिक) – Baisakh (बैशाख)

⏱️ Matures 110-140 days

💧 Water Medium (450-600 mm, regular watering)

☀️ Sunlight Full Sun (6-8 hours direct)

🪱 Soil Well-drained fertile loam

🗺️ Regions Terai, Mid-Hills

🌡️ Temp 13–28°C

⚗️ pH 6.0–6.8

📏 Depth 2.0 cm

📦 Yield 15 - 25 t/ha

📅 Planting Calendar 🩺 Plant Doctor AI

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