Quick stats
| Family | Fabaceae |
|---|---|
| Typical harvest | 2.1 t/ha |
| Varieties | 3 |
| Pests & diseases | 6 |
| Seasons | 6 |
Crop profile
| Growth habit | climber |
|---|---|
| Days to harvest | 90-150 |
| Main uses | Pulse; forage; vegetable |
| Pollination | insect |
| Origin / where it grows | Africa/Asia tropics |
Weather, soil & spacing
| Best temperature | 20–30 °C |
|---|---|
| Rainfall | 600–900 mm/yr |
| Altitude | 0–1800 m |
| Best pH | 6–7 |
| Soil type | Well-drained loam |
| Row spacing | 75 cm |
| Plant spacing | 45 cm |
| Planting depth | 3 cm |
| Seed rate | 25 kg/ha |
| Nursery days | — |
Simple notes for farmers
About the crop: This crop has a growth habit described as "climber". You can normally start harvesting about 90-150 days after planting, depending on care and variety.
Main use: Farmers mostly grow this crop for pulse; forage; vegetable.
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: Africa/Asia tropics It is grouped under: Legumes & Pulses.
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 600 to 900 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 75 centimetres apart, and leave about 45 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 25 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: —, K₂O: — | Or DAP 18-46-0 @ 50–60 kg/ha; inoculate seed where possible |
| 2 | Topdress (opt.) | 25 | CAN 26% N (light) | 30 kg/ha | N: —, P₂O₅: —, K₂O: — | Only if leaves pale and nodules absent/weak |
| 3 | K boost (opt.) | 40 | MOP (KCl) | 30 kg/ha | N: —, P₂O₅: —, K₂O: — | For intensive vegetable/forage use |
Nutrient requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| P₂O₅ | Basal | 25 | kg/ha |
| K₂O | Basal | 20 | kg/ha |
| N | Topdress | 15 | kg/ha |
| K₂O | Flowering | 20 | kg/ha |
Field images (picha shambani)
| Name | Country | Maturity | Traits |
|---|---|---|---|
| Local Lablab | KE | 120 | Dual purpose |
| Rongai (forage type) | KE | 120 | Vigorous vine; high biomass; forage/cover |
| Local lablab (grain) | KE | 110 | Dual-purpose; edible dry seed |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | NPK 17-17-17 | 60 | At sowing; band or broadcast |
| Topdress | CAN 26% N (optional) | 30 | Only if poor nodulation |
| Flowering | MOP (KCl) (optional) | 30 | Support pod/leaf production |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Pod borer | pest | Bored pods | Timely picking; IPM |
| Pod borer (Maruca spp.) | pest | Bored pods; webbing; seed damage | Timely picking; sanitation; rotate actives if spraying |
| Aphids | pest | Curling; honeydew/sooty mold | Encourage natural enemies; soft sprays; control ants |
| Beetles/defoliators | pest | Leaf holes; defoliation | Scouting; spot treatments; hand-pick small outbreaks |
| Anthracnose/leaf spots | disease | Spots/lesions on leaves & pods | Rotation; airflow; protectants if severe |
| Powdery mildew | disease | White powdery growth on leaves | Spacing; sulfur or labeled fungicides |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| rainfed | 1.2 | 0.6 | 2 | |
| rainfed grain (dry seed) | 1.2 | 0.6 | 2 | Varies with support/management |
| forage biomass (dry matter) | 4 | 2.5 | 6 | Cut at early flowering |
| Country | Region | Planting | Harvest |
|---|---|---|---|
| KE | Western | Mar–Apr | Jul–Oct |
| KE | Western & mid-altitudes (long rains) | Mar–Apr | Jul–Oct |
| KE | Western & mid-altitudes (short rains) | Oct–Nov | Feb–Apr |
| UG | Central/Eastern (1st season) | Mar–Apr | Jul–Sep |
| UG | Central/Eastern (2nd season) | Aug–Sep | Dec–Feb |
| TZ | Northern unimodal | Nov–Dec | Mar–May |
| Country | Region | Suitability |
|---|---|---|
| KE | Arid/semi-arid w/out irrigation | Low |
| KE | Poorly drained wetlands | Low |
| KE | Western | High |
| KE | Western; Nyanza; mid-altitude humid | High |
| TZ | Northern & Lake zones | High |
| UG | Central & Eastern sub-humid | High |