Crop details
Finger millet (wimbi)
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| Family | Poaceae |
|---|---|
| Typical harvest | 2.0 t/ha |
| Varieties | 3 |
| Pests & diseases | 5 |
| Seasons | 3 |
Crop profile
| Growth habit | annual |
|---|---|
| Days to harvest | 110 |
| Main uses | Grain for porridge, ugali, baby food, local drinks, and animal feed |
| Pollination | self |
| Origin / where it grows | Finger millet (wimbi) is grown in many parts of East Africa, especially in dry and hilly areas. |
Weather, soil & spacing
| Best temperature | 20–30 °C |
|---|---|
| Rainfall | 500–800 mm/yr |
| Altitude | 900–2400 m |
| Best pH | 5.5–7 |
| Soil type | Well-drained loam or sandy loam; Finger millet (wimbi) tolerates light and moderately poor soils. |
| Row spacing | 30 cm |
| Plant spacing | 10 cm |
| Planting depth | 2 cm |
| Seed rate | 8 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 110 days after planting, depending on care and variety.
Main use: Farmers mostly grow this crop for grain for porridge, ugali, baby food, local drinks, and animal feed.
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: Finger millet (wimbi) is grown in many parts of East Africa, especially in dry and hilly areas.
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 500 to 800 millimetres of rain in a year. It can grow from near sea level up to about 2400 metres above sea level.
Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 5.5 to 7. It does well in well-drained loam or sandy loam; finger millet (wimbi) tolerates light and moderately poor soils.. Good drainage is important, so avoid waterlogged spots.
Plant spacing: Plant in rows about 30 centimetres apart, and leave about 10 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 2 centimetres deep so the roots sit firmly in the soil but are not buried too deep.
Seed or planting material: Use around 8 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 at planting | 0 | DAP 18-46-0 or NPK with phosphorus | 50 kg/ha | N: 9, P₂O₅: 23, K₂O: 0 | Place fertilizer close to the wimbi seed but not touching it. |
| 2 | Early topdress | 21 | CAN 26% N or urea | 40 kg/ha | N: 10, P₂O₅: 0, K₂O: 0 | Apply around the plants when soil is moist, then lightly cover. |
| 3 | Late topdress (pre-heading) | 35 | Urea 46% N (if rainfall is reliable) | 30 kg/ha | N: 14, P₂O₅: 0, K₂O: 0 | Apply before heads of Finger millet (wimbi) appear and when soil is moist. |
Nutrient requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| N | Basal | 20 | kg/ha |
| P₂O₅ | Basal | 20 | kg/ha |
| K₂O | Basal | 10 | kg/ha |
| N | Topdress_early | 20 | kg/ha |
| P₂O₅ | Topdress_early | 0 | kg/ha |
| K₂O | Topdress_early | 10 | kg/ha |
| N | Topdress_late | 10 | kg/ha |
| P₂O₅ | Topdress_late | 0 | kg/ha |
| K₂O | Topdress_late | 10 | kg/ha |
| Name | Country | Maturity | Traits |
|---|---|---|---|
| P224 | KE | 110 | Improved Finger millet (wimbi) variety, good grain yield and suitable for many areas. |
| U-15 | UG | 115 | High-yielding, suitable for mid-altitude areas. |
| Local wimbi landrace | KE | 120 | Adapted to local conditions, preferred taste but lower yield than improved varieties. |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | DAP 18-46-0 | 50 | Provides phosphorus and some nitrogen for early Finger millet (wimbi) growth. |
| Topdress (early) | CAN 26% N | 40 | Apply when plants are 3–4 weeks old to support tillering. |
| Topdress (pre-heading) | Urea 46% N | 30 | Apply when rain is expected so that it dissolves into the soil. |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Stem borers | pest | Small holes in leaves, dead hearts in young Finger millet (wimbi) plants, tunneling in stems. | Destroy crop residues after harvest and avoid continuous cereal cropping on the same land. |
| Head worms / ear caterpillars | pest | Feeding on heads and grains, webbing, shriveled grains. | Plant wimbi early and uniformly, and harvest promptly once heads mature. |
| Birds | pest | Grains eaten from the top of the head, scattered grains on the ground. | Use bird scaring, synchronized planting with neighbours and early-maturing varieties in bird-prone areas. |
| Blast disease | disease | Small grey or brown spots on leaves and neck; neck may break and heads may be empty. | Use tolerant Finger millet (wimbi) varieties, avoid very high nitrogen and practice crop rotation. |
| Leaf spots | disease | Brown or grey spots on leaves; heavy infection leads to early drying. | Use clean seed, avoid overcrowding and rotate with legumes or other non-cereals. |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| Smallholder rainfed (low input) | 1 | 0.5 | 1.5 | Local wimbi seed, little fertilizer, basic weeding. |
| Smallholder rainfed (improved management) | 2 | 1.2 | 2.5 | Improved Finger millet (wimbi) varieties, recommended fertilizer and good weed and pest control. |
| High input / irrigated | 3 | 2.5 | 3.5 | Good varieties, moisture control and well-planned nutrition. |
| Country | Region | Planting | Harvest |
|---|---|---|---|
| KE | Highland and mid-altitude (long rains) | Mar–Apr | Aug–Sep |
| KE | Highland and mid-altitude (short rains) | Oct–Nov | Feb–Mar |
| UG | Highland wimbi-growing areas | Mar–Apr | Aug–Sep |
| Country | Region | Suitability |
|---|---|---|
| KE | Central and eastern highlands | High |
| KE | Very dry lowlands | Low |
| KE | Western and Nyanza highlands | High |
| TZ | Northern and central highlands | Medium |
| UG | Highland and mid-altitude Finger millet (wimbi) zones | High |