Typical yield
15.0 t/ha
Varieties
1
Pest/Disease
3
Seasons
1
Profile
- Growth habit
- perennial
- Lifecycle (days)
- 240-360
- Primary uses
- Starch root
- Pollination
- insect
- Origin / distribution
- Tropics
Environment
Climate
Temp optimal
22–30 °C
Rain optimal
1400–2200 mm/yr
Altitude
0–1600 m
Soil
pH optimal
5.5–6.8
Soil type
Deep loam; moist
Farmer Guide
Row spacing
100 cm
Plant spacing
60 cm
Depth
6 cm
Seed rate
1500 kg/ha
Nursery days
Planting: Plant healthy rhizome setts in well-prepared moist beds; maintain mulch to conserve moisture.
Transplanting: Not typically transplanted; use setts directly.
Irrigation: Requires consistent moisture; maintain evenly moist soil, avoid stagnation.
Fertigation: If under drip, provide small N/K feedings during rapid growth.
Pest scouting: Scout for weevils and leaf spots; ensure sanitation and rotation.
Pruning/Training: Remove senescent leaves to reduce disease pressure.
Harvest: Harvest 8–12 months after planting when leaves begin to yellow; lift carefully to avoid breakage.
Postharvest: Cure briefly in shade; store cool and dry; process promptly for starch.
Nutrient Schedule
| # | 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 |
Images
| 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 | Root damage | Clean seed pieces; sanitation |
| Leaf spots | disease | Spots on foliage | Improve airflow; avoid overhead irrigation; use protectants if needed |
| Root rots | disease | Wilting; root decay | Avoid waterlogging; rotate; use healthy planting material |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| rainfed | 15 | 8 | 25 |
| Country | Region | Planting | Harvest |
|---|---|---|---|
| KE | Humid lowlands | Mar–Apr | Oct–Jan |
| Country | Region | Suitability |
|---|---|---|
| KE | Humid lowlands | High |
| KE | Riverine/irrigated zones | High |
| KE | Sub-humid zones | Medium |