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Elephant Foot Yam

Crop details

Elephant Foot Yam

Amorphophallus paeoniifolius
Family: Araceae

Categories

Quick stats

Family Araceae
Typical harvest 21.0 t/ha
Varieties 2
Pests & diseases 3
Seasons 2

Crop profile

Growth habit perennial
Days to harvest 240-360
Main uses Tuber crop
Pollination insect
Origin / where it grows South/Southeast Asia; tropics

Weather, soil & spacing

Best temperature 24–32 °C
Rainfall 1200–1800 mm/yr
Altitude 0–1200 m
Best pH 6–7
Soil type Deep, fertile loam
Row spacing 100 cm
Plant spacing 100 cm
Planting depth 10 cm
Seed rate 1200 kg/ha
Nursery days

Simple notes for farmers

About the crop: This crop is perennial, which means once you plant it, the same plant can keep producing for many years. You can normally start harvesting about 240-360 days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for tuber crop.

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: South/Southeast Asia; tropics It is grouped under: Roots & Tubers.

Best climate: This crop does well in warm areas where the temperature is usually between 24 and 32 degrees Celsius. It prefers places that receive around 1200 to 1800 millimetres of rain in a year. It can grow from near sea level up to about 1200 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 loam. Good drainage is important, so avoid waterlogged spots.

Plant spacing: Plant in rows about 100 centimetres apart, and leave about 100 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 10 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use around 1200 kilograms of seed or planting material per hectare. Spread or plant evenly so the field has a good stand without being overcrowded.

Farmer guide (mwongozo wa mkulima)

Planting: Establish Elephant Foot Yam in a fine weed-free seedbed and keep emergence moisture steady.
Transplanting: Direct seed or transplant depending on production system.
Irrigation: Maintain even soil moisture for steady Elephant Foot Yam growth and quality.
Fertigation: Use split nitrogen and potassium for market-quality Elephant Foot Yam.
Pest scouting: Scout Elephant Foot Yam weekly for chewing pests, sap suckers, and foliar diseases.
Pruning: No pruning required unless sanitation or staking is needed.
Harvest: Harvest Elephant Foot Yam when roots size up well before they become fibrous or pithy.
Postharvest: Cool and shade Elephant Foot Yam promptly after harvest.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Basal 0 NPK 17-17-17 150 kg/ha N: 34, P₂O₅: 34, K₂O: 34 Basal fertilizer for Elephant Foot Yam.
2 Topdress 60 Urea 120 kg/ha N: 26, P₂O₅: —, K₂O: — Support active Elephant Foot Yam vegetative growth.

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 60 kg/ha
P₂O₅ Basal 40 kg/ha
K₂O Basal 60 kg/ha
N Topdress 60 kg/ha
K₂O Topdress 20 kg/ha

Field images (picha shambani)

Elephant Foot Yam
Primary
Elephant Foot Yam imported image
Elephant Foot Yam imported image
Elephant Foot Yam imported image
Elephant Foot Yam imported image
Name Country Maturity Traits
Local Elephant Yam KE 300 Large corms
Local Elephant Foot Yam TZ 260 Large corm type for cooking and flour.
Stage Product Rate (kg/ha) Notes
Basal NPK 17-17-17 150
Planting Well-rotted manure 5000 Improve soil structure before Elephant Foot Yam planting.
Vegetative growth CAN 100 Split topdress for Elephant Foot Yam production.
Name Type Symptoms Management
Tuber rot disease Rotting setts Curing; drainage; seed treatment
Root maggots pest Tunneling and feeding damage on roots. Rotate crops and maintain field sanitation.
Root cracking and rot disease Cracked or rotting roots under uneven moisture. Maintain even moisture and use well-drained soils.
System Typical Min Max Notes
rainfed 20 12 35
Managed fresh-market production 22 15.4 33 Typical marketable Elephant Foot Yam yield under irrigated or well-managed conditions.
Country Region Planting Harvest
KE Humid zones Mar–Apr Dec–Feb
KE Highland Vegetable Zones Mar-Apr or Oct-Nov Year-round depending on irrigation
Country Region Suitability
KE Highland Vegetable Zones High
KE Humid zones Medium