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Lima bean
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Lima bean

Phaseolus lunatus
Family: Fabaceae
Typical yield 1.5 t/ha
Varieties 3
Pest/Disease 5
Seasons 3

Profile

Growth habit
annual
Lifecycle (days)
90–140
Primary uses
Pulse; fresh green or dry seed
Pollination
self
Origin / distribution
Americas; grown in tropics/subtropics incl. East Africa

Environment

Climate

Temp optimal
20–28 °C
Rain optimal
700–1200 mm/yr
Altitude
0–1800 m

Soil

pH optimal
6–7
Soil type
Well-drained loam/sandy loam

Farmer Guide

Row spacing
60 cm
Plant spacing
30 cm
Depth
3 cm
Seed rate
40 kg/ha
Nursery days
Planting: Sow after onset of rains in warm soil; inoculate with Rhizobium if available; stake climbing types.
Transplanting: Generally not transplanted.
Irrigation: Maintain moisture at flowering/pod fill; avoid prolonged wet soils.
Fertigation: Low N needed due to fixation; supply P and K; micronutrients as needed.
Pest scouting: Scout for bean fly, aphids, pod borers, anthracnose; rotate chemistries.
Pruning/Training: Stake/twine for pole types to reduce disease and ease harvest.
Harvest: Pick green pods regularly or dry seeds at full maturity; avoid shattering.
Postharvest: Dry seeds to ≤12% moisture; store cool & dry; control bruchids.

Nutrient Schedule

#StageDAPProductRateTargets (kg/ha)Notes
1 Basal 0 NPK 17-17-17 (light) or DAP 18-46-0 (alt) 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

NutrientStageAmountUnit
P₂O₅ Basal 25 kg/ha
K₂O Basal 20 kg/ha
N Topdress 10 kg/ha
K₂O Flowering 20 kg/ha

Images

Lima bean
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 Swollen stems; wilting seedlings Seed dressing; early planting; ridge soil around stems
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