Quick stats
| Family | Fabaceae |
|---|---|
| Typical harvest | 1.5 t/ha |
| Varieties | 3 |
| Pests & diseases | 5 |
| Seasons | 3 |
Crop profile
| Growth habit | annual |
|---|---|
| Days to harvest | 90-140 |
| Main uses | Pulse; fresh/dry |
| Pollination | self |
| Origin / where it grows | Americas; tropics/subtropics |
Weather, soil & spacing
| Best temperature | 20–28 °C |
|---|---|
| Rainfall | 700–1200 mm/yr |
| Altitude | 0–1800 m |
| Best pH | 6–7 |
| Soil type | Well-drained loam |
| Row spacing | 60 cm |
| Plant spacing | 30 cm |
| Planting depth | 3 cm |
| Seed rate | 40 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 90-140 days after planting, depending on care and variety.
Main use: Farmers mostly grow this crop for pulse; fresh/dry.
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: Americas; tropics/subtropics It is grouped under: Legumes & Pulses.
Best climate: This crop does well in warm areas where the temperature is usually between 20 and 28 degrees Celsius. It prefers places that receive around 700 to 1200 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 6 to 7. It does well in well-drained loam. 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 3 centimetres deep so the roots sit firmly in the soil but are not buried too deep.
Seed or planting material: Use around 40 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 | NPK 17-17-17 | 60 kg/ha | N: —, P₂O₅: 20, K₂O: 20 | If using DAP, reduce additional N later |
| 2 | Topdress (veg) | 25 | CAN 26% N (optional) | 40 kg/ha | N: 10, P₂O₅: —, K₂O: — | Only if plants pale or poor nodulation |
Nutrient requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| P₂O₅ | Basal | 25 | kg/ha |
| K₂O | Basal | 20 | kg/ha |
| N | Topdress | 10 | kg/ha |
| K₂O | Flowering | 20 | kg/ha |
Field images (picha shambani)
| Name | Country | Maturity | Traits |
|---|---|---|---|
| Local Lima | KE | 110 | Pole type |
| Local Lima (bush) | KE | 110 | Bush type; uniform pods |
| Pole Lima | KE | 130 | Climbing; extended harvest |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | NPK 17-17-17 | 60 | |
| Basal | DAP 18-46-0 | 60 | Band away from seed |
| Topdress (opt.) | CAN 26% N | 40 | Use based on leaf color/soil tests |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Bean fly | pest | Stem swelling | Seed dressing; early planting |
| Aphids | pest | Leaf curl; honeydew/sooty mold | Conserve beneficials; spot sprays; control ants |
| Pod borer | pest | Bored pods/seeds | Timely picking; pheromone/light traps; selective insecticides |
| Anthracnose | disease | Dark lesions on pods/leaves | Clean seed; rotation; resistant varieties |
| Angular leaf spot | disease | Angular lesions on leaves | Sanitation; copper/protectants; airflow |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| rainfed | 1.2 | 0.5 | 2 | |
| rainfed smallholder | 1.2 | 0.5 | 2 | |
| irrigated/managed | 2 | 1.2 | 3 | Good fertility & pest control |
| Country | Region | Planting | Harvest |
|---|---|---|---|
| KE | Eastern | Oct–Nov | Jan–Mar |
| KE | Western | Mar–Apr | Jun–Aug |
| UG | Central | Mar–Apr | Jun–Jul |
| Country | Region | Suitability |
|---|---|---|
| KE | Eastern | Medium |
| KE | Western | High |
| UG | Central | High |