Winged bean (Psophocarpus tetragonolobus)
Psophocarpus tetragonolobus
Family: Fabaceae
Typical yield
8.0 t/ha
Varieties
1
Pest/Disease
1
Seasons
1
Profile
- Growth habit
- climber
- Lifecycle (days)
- 120-180
- Primary uses
- Vegetable; pulse; forage
- Pollination
- insect
- Origin / distribution
- SE Asia tropics
Environment
Climate
Temp optimal
22–30 °C
Rain optimal
1200–2000 mm/yr
Altitude
0–1600 m
Soil
pH optimal
5.5–6.8
Soil type
Fertile, well-drained
Farmer Guide
Row spacing
100 cm
Plant spacing
50 cm
Depth
3 cm
Seed rate
20 kg/ha
Nursery days
Nutrient Schedule
| # | Stage | DAP | Product | Rate | Targets (kg/ha) | Notes |
|---|---|---|---|---|---|---|
| 1 | Basal | 0 | NPK 15-15-15 | 60 kg/ha | N: —, P₂O₅: —, K₂O: — |
Nutrient Requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| P₂O₅ | Basal | 25 | kg/ha |
| K₂O | Basal | 25 | kg/ha |
Images
| Name | Country | Maturity | Traits |
|---|---|---|---|
| Local Winged Bean | KE | 150 | Edible pods & tubers |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | NPK 15-15-15 | 60 |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Aphids | pest | Sticky honeydew | Prune; control ants; soft sprays |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| vegetable pods | 8 | 4 | 12 |
| Country | Region | Planting | Harvest |
|---|---|---|---|
| KE | Humid lowlands | Mar–Apr | Jul–Dec |
| Country | Region | Suitability |
|---|---|---|
| KE | Humid lowlands | Medium |