Quick stats
| Family | Marantaceae |
|---|---|
| Typical harvest | 15.0 t/ha |
| Varieties | 1 |
| Pests & diseases | 3 |
| Seasons | 0 |
Crop profile
| Growth habit | perennial |
|---|---|
| Days to harvest | 240-360 |
| Main uses | Starch root |
| Pollination | insect |
| Origin / where it grows | Tropics |
Weather, soil & spacing
| Best temperature | 22–30 °C |
|---|---|
| Rainfall | 1400–2200 mm/yr |
| Altitude | 0–1600 m |
| Best pH | 5.5–6.8 |
| Soil type | Deep loam; moist |
| Row spacing | 100 cm |
| Plant spacing | 60 cm |
| Planting depth | 6 cm |
| Seed rate | 1500 kg/ha |
| Nursery days | — |
Simple notes for farmers
About the crop: This crop is perennial, which means once you plant it, the same plant can keep producing for many years. You can normally start harvesting about 240-360 days after planting, depending on care and variety.
Main use: Farmers mostly grow this crop for starch root.
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: Tropics It is grouped under: Roots & Tubers.
Best climate: This crop does well in warm areas where the temperature is usually between 22 and 30 degrees Celsius. It prefers places that receive around 1400 to 2200 millimetres of rain in a year. It can grow from near sea level up to about 1600 metres above sea level.
Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 5.5 to 6.8. It does well in deep loam; moist. Good drainage is important, so avoid waterlogged spots.
Plant spacing: Plant in rows about 100 centimetres apart, and leave about 60 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 6 centimetres deep so the roots sit firmly in the soil but are not buried too deep.
Seed or planting material: Use around 1500 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 12-24-12 | 150 kg/ha | N: —, P₂O₅: —, K₂O: — | |
| 2 | Topdress | 60 | CAN 26% N | 120 kg/ha | N: —, P₂O₅: —, K₂O: — | Irrigate after application |
Nutrient requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| N | Basal | 40 | kg/ha |
| P₂O₅ | Basal | 30 | kg/ha |
| K₂O | Basal | 60 | kg/ha |
| N | Topdress | 40 | kg/ha |
Field images (picha shambani)
| Name | Country | Maturity | Traits |
|---|---|---|---|
| Local Arrowroot | KE | 300 | High starch |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | NPK 12-24-12 | 150 | |
| Topdress | CAN 26% N | 120 | Split if soils are light |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Weevils | pest | Clean seed pieces; sanitation | |
| Leaf spots | disease | Improve airflow; avoid overhead irrigation; use protectants if needed | |
| Root rots | disease | Avoid waterlogging; rotate; use healthy planting material |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| rainfed | 15 | 8 | 25 |
| Country | Region | Suitability |
|---|---|---|
| KE | Humid lowlands | |
| KE | Riverine/irrigated zones | |
| KE | Sub-humid zones |