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Highland Apple

स्याउ (Marpha / Mustang Apple)
📖 Malus domestica L.
Verified Agricultural Data (NARC) Fruits 📅 Baisakh (बैशाख) – Ashwin (असोज) 🌡️ 15–30°C ⚗️ pH 6.0–7.0 ⏱️ Perennial tree crop
Growing Season & Schedule
🌱
Recommended Growing Window: Baisakh (बैशाख) – Ashwin (असोज)

Highland apple trees start bearing in 3-4 years (dwarf rootstock) or 5-7 years (standard). Ripens in Shrawan to Ashwin in high altitude valleys (1800-2800m) with 800-1200 hours chilling requirement (<7°C).

Description & Overview
Celebrated temperate fruit of trans-Himalayan valleys (Mustang, Jumla, Dolpa). High sweetness and crunch due to sunny days, dry cool air, and cold winter dormancy.
Details & Agronomic Insights
🌟 Positive Attributes & Health Benefits

Exceptional source of pectin (soluble prebiotic fiber), quercetin, Vitamin C, and polyphenols. Lowers LDL cholesterol, regulates blood sugar spikes, and supports lung fitness.

⚠️ Precautions & Adverse Notes

Apple seeds contain trace amygdalin (cyanogenic glycoside) and should not be eaten in quantity; fruit flesh is completely safe and nutritious.

🐛 Major Diseases & Pests

Apple Scab (Venturia inaequalis), Powdery Mildew (Podosphaera leucotricha), Woolly Apple Aphid (Eriosoma lanigerum), and San Jose Scale.

💊 Disease & Pest Solutions
  • Apply Captan (2 g/L) or Difenoconazole (0.5 mL/L) at green tip, pink bud, and petal fall stages to protect against apple scab.
  • Apply Tree Spray Oil (Horticultural mineral oil 2%) during winter dormancy to smother overwintering San Jose scale insects and mite eggs.
  • Release parasitic wasp Aphelinus mali for biological control of woolly apple aphids.
  • Winter pruning to maintain open-center or modified central leader canopy for maximum sunlight penetration.
🧪 Fertilizer & Nutrition Recommendations

For mature bearing tree: 40-50 kg compost, 500g N, 250g P2O5, 500g K2O per tree per year. Apply compost, P and K in winter dormancy; apply N in two splits (bud burst and fruit set).

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 7-8 hours intense mountain sun
🧪 NPK Dose 100:60:40 NPK kg/ha
Climate & Altitude Requirements
⛰️ Altitude Range 100–2000 m
🗺️ Suitable Regions Terai, Mid-Hills
🌡️ Temperature Range 15–30°C
⚗️ Optimal pH 6.0–7.0
Harvest Information & Yield
⏱️ Maturity Days Perennial tree crop
📦 Expected Yield 15 - 25 t/ha
🔍 Harvest Indicators:

Harvest when crop reaches optimal market maturity and full color

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
Quick Reference
Verified
🌱 Method Direct Seeding
📅 Season Baisakh (बैशाख) – Ashwin (असोज)
⏱️ Matures Perennial tree crop
💧 Water Medium (450-600 mm, regular watering)
☀️ Sunlight 7-8 hours intense mountain sun
🪱 Soil Well-drained fertile loam
🗺️ Regions Terai, Mid-Hills
🌡️ Temp 15–30°C
⚗️ pH 6.0–7.0
📏 Depth 2.0 cm
📦 Yield 15 - 25 t/ha
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