Crop details
Sudan grass
Categories
Quick stats
| Family | Poaceae |
|---|---|
| Typical harvest | 26.7 t/ha |
| Varieties | 2 |
| Pests & diseases | 7 |
| Seasons | 3 |
Crop profile
| Growth habit | annual |
|---|---|
| Days to harvest | 60-120 |
| Main uses | Forage; hay/green chop |
| Pollination | wind |
| Origin / where it grows | Africa; warm regions |
Weather, soil & spacing
| Best temperature | 24–32 °C |
|---|---|
| Rainfall | 500–800 mm/yr |
| Altitude | 0–1600 m |
| Best pH | 6–7.5 |
| Soil type | Well-drained; tolerates drought |
| Row spacing | 50 cm |
| Plant spacing | 10 cm |
| Planting depth | 2.5 cm |
| Seed rate | 15 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 60-120 days after planting, depending on care and variety.
Main use: Farmers mostly grow this crop for forage; hay/green chop.
Pollination: This crop is mainly pollinated by wind. Keeping flowers healthy and having insects like bees in the field helps improve fruit set and yields.
Where it grows: Africa; warm regions It is grouped under: Forages & Fodder.
Best climate: This crop does well in warm areas where the temperature is usually between 24 and 32 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 1600 metres above sea level.
Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 6 to 7.5. It does well in well-drained; tolerates drought. Good drainage is important, so avoid waterlogged spots.
Plant spacing: Plant in rows about 50 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 2.5 centimetres deep so the roots sit firmly in the soil but are not buried too deep.
Seed or planting material: Use around 15 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 | DAP 18-46-0 | 80 kg/ha | N: —, P₂O₅: —, K₂O: — | Place below/aside seed to avoid burn |
| 2 | After first cut | 45 | Urea | 80 kg/ha | N: 40, P₂O₅: —, K₂O: — | Irrigate or apply before rain |
| 3 | After 1st cut | 55 | Urea 46% N + MOP (KCl) | 80 kg/ha (urea) + 60 kg/ha MOP | N: 40, P₂O₅: —, K₂O: 30 | Broadcast evenly on moist soil |
Nutrient requirements
| Nutrient | Stage | Amount | Unit |
|---|---|---|---|
| N | Basal | 40 | kg/ha |
| P₂O₅ | Basal | 20 | kg/ha |
| K₂O | Basal | 30 | kg/ha |
| N | Topdress | 40 | kg/ha |
| N | Topdress1 | 40 | kg/ha |
| P₂O₅ | Topdress1 | 0 | kg/ha |
| K₂O | Topdress1 | 30 | kg/ha |
| N | After_cut | 40 | kg/ha |
| P₂O₅ | After_cut | 0 | kg/ha |
| K₂O | After_cut | 30 | kg/ha |
Field images (picha shambani)
| Name | Country | Maturity | Traits |
|---|---|---|---|
| Local Sudan Grass | KE | 80 | Fast regrowth |
| Piper type | TZ | 75 | Fine stems; good hay |
| Stage | Product | Rate (kg/ha) | Notes |
|---|---|---|---|
| Basal | NPK 17-17-17 | 100 | |
| Topdress | Urea 46% N (or CAN) | 80 | Split after emergence and after cuts |
| After cut | MOP (KCl) | 60 | Supports regrowth and stand persistence |
| Name | Type | Symptoms | Management |
|---|---|---|---|
| Sorghum midge | pest | Poor seed set | Early planting; tolerant types |
| Armyworms/cutworms | pest | Defoliation; stand loss | Early scouting; baits/controls if thresholds exceeded |
| Shoot fly | pest | Deadhearts in seedlings | Timely sowing; seed treatment; replant gaps |
| Stem borers | pest | Tunneling; broken stems | Stubble management; rotations; biological controls |
| Leaf spot/rust | disease | Spots/pustules on leaves | Resistant lines; airflow; timely protectants if severe |
| Smut/ergot (sorghum) | disease | Black sori; sticky exudate | Clean seed; crop hygiene; rotation |
| Sorghum midge (in seed) | pest | Poor grain in seed production | Synchronize flowering; avoid volunteer hosts |
| System | Typical | Min | Max | Notes |
|---|---|---|---|---|
| cut-and-carry | 30 | 15 | 50 | Fresh biomass |
| rainfed forage | 15 | 8 | 25 | Fresh biomass per cut; 2–3 cuts possible (site-dependent) |
| irrigated forage | 35 | 20 | 60 | Cumulative fresh biomass across multiple cuts |
| Country | Region | Planting | Harvest |
|---|---|---|---|
| KE | Lowlands & mid-altitudes (long rains) | Mar–Apr | May–Sep |
| KE | Lowlands & mid-altitudes (short rains) | Oct–Nov | Dec–Apr |
| TZ | Central semi-arid (with showers/irrig.) | Dec–Jan | Feb–Jun |
| Country | Region | Suitability |
|---|---|---|
| KE | Cool highlands (>2000 m) | Low |
| KE | Lowlands & mid-altitudes | High |
| KE | Lowlands/Semi-arid | High |
| TZ | Central semi-arid (irrigated) | High |
| UG | Dry savanna | Medium |