Broad Leaf Mustard (Rayo)

रायोको साग (Rayo ko Saag)

📖 Brassica juncea var. rugosa (Roxb.) N. Tsen

Verified Agricultural Data (NARC) Leafy Greens 📅 Bhadra (भाद्र) – Falgun (फागुन) 🌡️ 10–22°C ⚗️ pH 6.0–7.2 ⏱️ 30-45 days (first cut)

Growing Season & Schedule

🌱

Recommended Growing Window: Bhadra (भाद्र) – Falgun (फागुन)

Broad leaf mustard matures in 30 to 45 days after sowing. Progressive picking of tender lower outer leaves allows multiple cuts throughout the cool autumn and winter months across Nepal.

Description & Overview

The definitive national green leafy vegetable of Nepal. Famous cultivars such as Marpha Broad Leaf (मार्फा रायो), Khumal Broadleaf, and Red Giant flourish across hill terraces. Widely eaten fresh, sauteed, and traditionally fermented into Gundruk.

Details & Agronomic Insights

🌟 Positive Attributes & Health Benefits

Powerhouse of Vitamin A, C, K, folate, glucosinolates, and dietary iron. Supports red blood cell proliferation, bone mineralization, and detoxifies cellular metabolic byproducts.

⚠️ Precautions & Adverse Notes

Contains mild goitrogens and dietary oxalates; individuals prone to calcium-oxalate nephrolithiasis should blanch leaves prior to consumption.

🐛 Major Diseases & Pests

White Rust (Albugo candida), Downy Mildew, Mustard Aphid (Lipaphis erysimi), and Cabbage Butterfly caterpillars.

💊 Disease & Pest Solutions

Spray bio-pesticides or fermented cow urine dilution (1:5 with water) to eradicate aphid colonies early.
Apply Mancozeb 75% WP (2 g/L) if white rust pustules appear on lower leaf surfaces.
Practice regular plant thinning to 15 cm spacing for air circulation.

🧪 Fertilizer & Nutrition Recommendations

Basal application of 15-20 tons FYM/ha. Recommended chemical dose: 80:40:40 NPK kg/ha. Apply 20 kg Nitrogen top-dressing after each major foliage picking.

Planting & Cultivation Guide

🌱 Planting Method Direct Seeding

📏 Seed Depth 1.0 cm

↔️ Seed Spacing 15.0 cm

📐 Row Spacing 30.0 cm

🪱 Soil Type Loose fertile loam with ample organic compost

💧 Water Requirement Medium (300-450 mm, frequent light irrigation)

☀️ Sunlight Full Sun to Partial Sun (4-6 hours)

🧪 NPK Dose 80:40:40 NPK kg/ha + 10 t/ha FYM

Climate & Altitude Requirements

⛰️ Altitude Range 100–2800 m

🗺️ Suitable Regions Terai, Mid-Hills, High-Hills

🌡️ Temperature Range 10–22°C

⚗️ Optimal pH 6.0–7.2

Harvest Information & Yield

⏱️ Maturity Days 30-45 days (first cut)

📦 Expected Yield 15 - 25 t/ha (multiple harvests)

🔍 Harvest Indicators:

Leaves reach 20-25 cm length; outer leaves harvested progressively

Crop Photo Gallery

रायोको साग (Rayo ko Saag) (Primary Photo)

Broad Leaf Mustard (Rayo) — Field View #2

Broad Leaf Mustard (Rayo) — Field View #3

Quick Reference

Verified

🌱 Method Direct Seeding

📅 Season Bhadra (भाद्र) – Falgun (फागुन)

⏱️ Matures 30-45 days (first cut)

💧 Water Medium (300-450 mm, frequent light irrigation)

☀️ Sunlight Full Sun to Partial Sun (4-6 hours)

🪱 Soil Loose fertile loam with ample organic compost

🗺️ Regions Terai, Mid-Hills, High-Hills

🌡️ Temp 10–22°C

⚗️ pH 6.0–7.2

📏 Depth 1.0 cm

📦 Yield 15 - 25 t/ha (multiple harvests)

📅 Planting Calendar 🩺 Plant Doctor AI

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