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Longan imported image

Crop details

Longan

Dimocarpus longan
Family: Sapindaceae

Categories

Quick stats

Family Sapindaceae
Typical harvest 8.0 t/ha
Varieties 1
Pests & diseases 2
Seasons 1

Crop profile

Growth habit tree
Days to harvest 365
Main uses Fresh fruit for specialty tropical and Asian food markets.
Pollination insect
Origin / where it grows Suitable for warm subtropical lowland and mid-altitude orchards.

Weather, soil & spacing

Best temperature 20–30 °C
Rainfall 800–1600 mm/yr
Altitude 0–2600 m
Best pH 6–7
Soil type Deep, fertile, well-drained soil with good organic matter.
Row spacing 500 cm
Plant spacing 500 cm
Planting depth 30 cm
Seed rate kg/ha (check local recommendation)
Nursery days 180

Simple notes for farmers

About the crop: This crop has a growth habit described as "tree". You can normally start harvesting about 365 days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for fresh fruit for specialty tropical and asian food markets..

Pollination: This crop is mainly pollinated by insect. Keeping flowers healthy and having insects like bees in the field helps improve fruit set and yields.

Where it grows: Suitable for warm subtropical lowland and mid-altitude orchards. It is grouped under: Fruits & Nuts.

Best climate: This crop does well in warm areas where the temperature is usually between 20 and 30 degrees Celsius. It prefers places that receive around 800 to 1600 millimetres of rain in a year. It can grow from near sea level up to about 2600 metres above sea level.

Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 6 to 7. It does well in deep, fertile, well-drained soil with good organic matter.. Good drainage is important, so avoid waterlogged spots.

Plant spacing: Plant in rows about 500 centimetres apart, and leave about 500 centimetres between plants in the row. This gives each plant enough space for roots and canopy to spread.

Planting depth: Dig planting holes or furrows about 30 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use good quality seed or healthy planting material. Follow local extension advice for the exact amount per hectare.

Nursery period: If you raise seedlings in a nursery, keep them there for about 180 days before transplanting to the main field, when they are strong and healthy.

Farmer guide (mwongozo wa mkulima)

Planting: Plant healthy Longan seedlings or grafted plants at onset of rains in prepared pits.
Transplanting: Handle Longan rootballs carefully and water well after planting.
Irrigation: Maintain steady moisture during establishment and fruit development of Longan.
Fertigation: Split nutrients through active growth and fruit development in Longan.
Pest scouting: Scout Longan regularly for fruit flies, scales, borers, and foliar diseases.
Pruning: Prune Longan to maintain canopy light, height, and sanitation.
Harvest: Harvest Longan at the right maturity stage for fresh-market quality.
Postharvest: Keep Longan shaded and cool after harvest to preserve market quality.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Planting or season start 0 Well-rotted manure 8000 kg/ha N: —, P₂O₅: —, K₂O: — Improve rooting environment for Longan.
2 Pre-fruiting 90 NPK 17-17-17 200 kg/ha N: 34, P₂O₅: 34, K₂O: 34 Balanced nutrient support for Longan.

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 40 kg/ha
P₂O₅ Basal 30 kg/ha
K₂O Basal 40 kg/ha
N Fruiting 40 kg/ha
K₂O Fruiting 50 kg/ha

Field images (picha shambani)

Longan imported image
Longan imported image
Primary
Longan imported image
Longan imported image
Longan imported image
Longan imported image
Name Country Maturity Traits
Biew Kiew KE 365 Sweet translucent flesh for niche markets.
Stage Product Rate (kg/ha) Notes
Planting Well-rotted manure 8000 Organic matter for Longan establishment.
Pre-fruiting NPK 17-17-17 200 Balanced fertilizer ahead of major Longan crop load.
Name Type Symptoms Management
Fruit flies pest Stings, larval feeding, and rotting fruits. Field sanitation, trapping, and timely harvest.
Anthracnose and fruit rots disease Lesions on flowers, leaves, or fruits reducing quality. Prune for airflow, keep orchards clean, and protect during wet periods.
System Typical Min Max Notes
Managed orchard production 8 4.8 12.8 Typical orchard yield for Longan under practical management.
Country Region Planting Harvest
KE Managed Orchard Zones Mar-Apr or Oct-Nov Depends on variety and agroecology
Country Region Suitability
KE Managed Orchard Zones Medium