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Fruits

Longan

Dimocarpus longan

Longan is a tropical fruit tree native to Southern Asia, known for its sweet, translucent flesh and brown, leathery skin. The fruit is often consumed fresh, dried, or canned and is valued for its high vitamin C content and antioxidant properties. Longan trees can grow up to 20 meters tall and are characterized by their compound leaves and fragrant flowers.

Calculate System for Longan
400.00–600.00mm
Water Need
120 days
Season
30.00–60.00cm
Root Depth
25,000 kg/ha
Yield
20,000
Plants/ha

Growth Stages

Season: Mar – Aug (120 days)

Initial
Kc 0.400
30 days
Development
Kc 0.700
40 days
Mid-Season
Kc 1.000
60 days
Late
Kc 0.800
30 days

Longan trees thrive in warm climates and require well-drained soils. They are sensitive to frost and should be planted in areas with minimal cold exposure. Varieties include 'Biew Kiew' and 'Daw' which are popular for their fruit quality.

Water Requirements

Season Total: 400.00600.00 mm
Water Stress Sensitivity: High
Salt Tolerance: Moderate
Water Productivity: 15.500 kg/m³

Recommended Methods

Drip Irrigation90.00%Fixed Sprinkler70.00%

Soil Compatibility

Optimal pH range: 6.0 – 7.5

Sandy Loam
AWC100.00mm/m
Drainagegood
Drainage: Well-drained soils preferred
Organic Matter: 2.00%
Soil should be rich in organic matter. Incorporating compost can improve soil structure and fertility. Avoid heavy clay soils that retain water.

Climate Compatibility

Temperature range: 15.0°C – 30.0°C

Temperate Continental
ETo: 1.006.00 mm/day
Temp: -20.0°C – 30.0°C
Frost: high
Mediterranean
ETo: 3.007.00 mm/day
Temp: 5.0°C – 35.0°C
Frost: low
Frost Tolerance: Low frost tolerance
Heat Tolerance: Moderate heat tolerance
Longan trees prefer a humid climate with plenty of sunlight. Protect young trees from extreme temperatures and consider shade during the hottest months.

Planting Layout

100.00cm
Row Spacing
50.00cm
Plant Spacing
20,000
Plants per ha

Nutrient Requirements (kg/ha)

Nitrogen (N)150 kg/ha
Phosphorus (P)60 kg/ha
Potassium (K)180 kg/ha
40
Calcium (Ca) kg/ha
25
Magnesium (Mg) kg/ha
20
Sulfur (S) kg/ha
Schedule: Apply nitrogen in 3 splits during growing season
Organic Matter: 2-3% organic matter recommended

Yield Information

25,000
kg/ha
2.500
kg/plant
0.450
Harvest Index
Quality Factors: Size, color, sugar content

Design Your Longan Irrigation System

Use our free calculators to plan water requirements, spacing, and system costs for your Longan field.

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Related Guides

Growing and Irrigating Longan: An Economically Efficient Approach

Introduction Longan (Dimocarpus longan) is a tropical fruit tree native to Southeast Asia. It is highly valued for its sweet and juicy fruit, which is often compared to lychee. Longan trees are not only a great addition to home gardens but also a profitable crop for commercial growers. In this article, we will explore…

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