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Crop details

Cowpea (kunde)

Vigna unguiculata
Family: Fabaceae

Quick stats

Family Fabaceae
Typical harvest 1.3 t/ha
Varieties 3
Pests & diseases 6
Seasons 3

Crop profile

Growth habit annual
Days to harvest 75
Main uses Green leaves, fresh pods, dry grain for food, and haulms for animal feed.
Pollination self
Origin / where it grows Cowpea (kunde) is grown in many warm and dry parts of East Africa, often together with maize or sorghum.

Weather, soil & spacing

Best temperature 22–32 °C
Rainfall 400–700 mm/yr
Altitude 0–1800 m
Best pH 5.5–7
Soil type Light to medium textured, well-drained soils. Cowpea (kunde) tolerates poorer soils better than many other crops.
Row spacing 45 cm
Plant spacing 20 cm
Planting depth 3 cm
Seed rate 20 kg/ha
Nursery days

Simple notes for farmers

About the crop: This crop is annual. You plant, grow and harvest it in one main season, then plant again. You can normally start harvesting about 75 days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for green leaves, fresh pods, dry grain for food, and haulms for animal feed..

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

Where it grows: Cowpea (kunde) is grown in many warm and dry parts of East Africa, often together with maize or sorghum. It is grouped under: Legumes & Pulses.

Best climate: This crop does well in warm areas where the temperature is usually between 22 and 32 degrees Celsius. It prefers places that receive around 400 to 700 millimetres of rain in a year. It can grow from near sea level up to about 1800 metres above sea level.

Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 5.5 to 7. It does well in light to medium textured, well-drained soils. cowpea (kunde) tolerates poorer soils better than many other crops.. Good drainage is important, so avoid waterlogged spots.

Plant spacing: Plant in rows about 45 centimetres apart, and leave about 20 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 3 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use around 20 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: Plant Cowpea (kunde) at the start of the rains. Place 2–3 seeds per hole, cover lightly and thin to 1–2 strong plants per station.
Transplanting: Cowpea (kunde) is usually direct seeded, not transplanted.
Irrigation: Kunde is drought tolerant, but germination, flowering and pod filling need some soil moisture. Avoid long dry spells at flowering.
Fertigation: Being a legume, Cowpea (kunde) fixes its own nitrogen. Focus on small amounts of starter phosphorus and good inoculation where available.
Pest scouting: Scout weekly for aphids, flower thrips and pod borers. Also watch for leaf spots and root rots in poorly drained spots.
Pruning: No pruning needed. Keep weeds low, especially during the first 4–5 weeks after emergence.
Harvest: For green pods, harvest when pods are well-filled but still soft. For dry grain, harvest when most pods of Cowpea (kunde) turn brown and rattle when shaken.
Postharvest: Dry pods or threshed grain on clean mats or tarpaulins. Dry until seeds are hard, then store in dry, airtight containers or bags to avoid weevils.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Basal at planting 0 NPK 10-26-10 or similar starter 40 kg/ha N: 4, P₂O₅: 10, K₂O: 4 Band or spot-apply fertilizer a little away from Cowpea (kunde) seed.
2 Optional K topdress (early flowering) 35 Muriate of potash (MOP) or NPK with K 20 kg/ha N: 0, P₂O₅: 0, K₂O: 12 Use in fields with history of low K or where haulms of Cowpea (kunde) are frequently removed.

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 10 kg/ha
P₂O₅ Basal 20 kg/ha
K₂O Basal 10 kg/ha
N Topdress_early 0 kg/ha
P₂O₅ Topdress_early 0 kg/ha
K₂O Topdress_early 10 kg/ha
Name Country Maturity Traits
Improved kunde – early maturing KE 70 Early Cowpea (kunde) for short rains; good grain and leaf yield.
Dual-purpose Cowpea (kunde) TZ 80 Grown for both grain and fodder; good drought tolerance.
Local kunde landrace KE 75 Preferred taste and leaf quality; moderate yield.
Stage Product Rate (kg/ha) Notes
Basal NPK 10-26-10 or DAP (small dose) 40 Provides starter phosphorus for Cowpea (kunde) root growth and nodulation.
Topdress (optional) Muriate of potash (MOP) or NPK with K 20 Target fields with potassium deficiency; helps grain filling and plant strength.
Name Type Symptoms Management
Aphids pest Clusters of small green/black insects on young shoots and undersides of leaves; leaves curl and plants look sticky. Encourage natural enemies (ladybirds, lacewings), avoid overuse of chemicals and use selective sprays only when heavy in...
Flower thrips pest Silvering and browning of flowers, poor pod set, deformed pods in Cowpea (kunde). Plant early, avoid very late sowing and use recommended insecticides only when damage is severe.
Pod borers (Maruca and others) pest Holes in pods, webbing and damaged seeds inside pods. Scout during flowering and early podding, and use recommended biopesticides or insecticides early when damage starts.
Cowpea weevil (in storage) pest Small holes in stored Cowpea (kunde) grain and powdery dust in bags. Dry grain well, use airtight storage or treated storage technologies and clean stores between seasons.
Leaf spots and blights disease Brown or black spots on leaves; severe cases cause early leaf drop. Use clean seed, rotate with non-legume crops and avoid overcrowding.
Root rots disease Plants of Cowpea (kunde) wilt and die, roots are dark and rotten in wet spots. Improve drainage, avoid planting kunde in low, waterlogged areas and rotate fields.
System Typical Min Max Notes
Smallholder rainfed (low input) 0.7 0.4 1 Local kunde types, little or no fertilizer, basic weeding.
Smallholder rainfed (improved management) 1.2 0.8 1.6 Improved Cowpea (kunde) varieties, recommended spacing and timely pest and weed management.
High input / irrigated 2 1.5 2.5 Good varieties with reliable water and strong pest control.
Country Region Planting Harvest
KE Semi-arid and medium rainfall areas (long rains) Mar–Apr Jun–Jul
KE Semi-arid and medium rainfall areas (short rains) Oct–Nov Jan–Feb
TZ Central and northern dry zones Dec–Jan Mar–Apr
Country Region Suitability
KE ASAL (arid and semi-arid lands) and coastal lowlands High
KE Medium altitude mixed crop–livestock areas High
KE Very wet, high altitude zones Low
TZ Central plateau and northern drier zones High
UG Drier cattle corridor and mixed farming areas Medium