Quick stats
| Family | Fabaceae |
|---|---|
| Typical harvest | 0.8 t/ha |
| Varieties | 1 |
| Pests & diseases | 4 |
| Seasons | 0 |
Crop profile
| Growth habit | annual |
|---|---|
| Days to harvest | 100-150 |
| Main uses | Pulse; food security |
| Pollination | self |
| Origin / where it grows | Sub-Saharan Africa |
Weather, soil & spacing
| Best temperature | 22–30 °C |
|---|---|
| Rainfall | 500–900 mm/yr |
| Altitude | 0–1600 m |
| Best pH | 5.5–6.8 |
| Soil type | Sandy loam; light soils |
| Row spacing | 60 cm |
| Plant spacing | 30 cm |
| Planting depth | 4 cm |
| Seed rate | 50 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 100-150 days after planting, depending on care and variety.
Main use: Farmers mostly grow this crop for pulse; food security.
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: Sub-Saharan Africa It is grouped under: Legumes & Pulses.
Best climate: This crop does well in warm areas where the temperature is usually between 22 and 30 degrees Celsius. It prefers places that receive around 500 to 900 millimetres of rain in a year. It can grow from near sea level up to about 1600 metres above sea level.
Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 5.5 to 6.8. It does well in sandy loam; light soils. Good drainage is important, so avoid waterlogged spots.
Plant spacing: Plant in rows about 60 centimetres apart, and leave about 30 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 4 centimetres deep so the roots sit firmly in the soil but are not buried too deep.
Seed or planting material: Use around 50 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)
Nutrient schedule (mbolea kwa hatua)
| # | Stage | DAP | Product | Rate | Targets (kg/ha) | Notes |
|---|---|---|---|---|---|---|
| 1 | Basal | 0 | DAP 18-46-0 | 60 kg/ha | N: —, P₂O₅: —, K₂O: — | Band or place below seed; avoid seed burn |
Nutrient requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| P₂O₅ | Basal | 25 | kg/ha |
| K₂O | Basal | 20 | kg/ha |
| N | Topdress | 0 | kg/ha |
Field images (picha shambani)
| Name | Country | Maturity | Traits |
|---|---|---|---|
| Local Bambara | KE | 130 | Drought tolerant |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | DAP 18-46-0 | 60 | Reduce if soil P is high |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Aphids | pest | Spot sprays; natural enemies | |
| Bruchids (storage) | pest | Proper drying; hermetic storage; insecticidal dusts where appropriate | |
| Leaf spots | disease | Rotation; sanitation; avoid overhead irrigation | |
| Root rots | disease | Improve drainage; avoid planting in poorly drained fields |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| rainfed smallholder | 0.8 | 0.4 | 1.5 |
| Country | Region | Suitability |
|---|---|---|
| KE | Eastern (semi-arid pockets) | |
| KE | Western | |
| TZ | Central semi-arid | |
| UG | Northern |