Divisi
When to plant Bambara groundnut in Tchad
Bambara groundnut (Vigna subterranea) is one of Africa's own beans — a tough, low, bushy plant, often grown by the women of the household on the poorest, sandiest land where maize would fail.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 19 Jun 2027 – 29 Jun 2027 opens in 37 weeks | 30 Jun 2027 – 20 Jul 2027 |
| Expected harvest | 1.7–1.9 t/ha | same |
| Harvest | From 17 Sep 2027 to 16 Dec 2027, depending on the planting date | |
| Ready to harvest | 90–170 days after planting | |
| Work it takes | 77–157 days per hectare, by hand | |
Rain-fed. These dates are worked out from each place's own rainfall, for a field watered by the season — with irrigation a window can open earlier, close later, or come round more than once a year. Check your own field under What grows, or get the Divisi app for a calendar dated to your farm.
If you only get one chance to plant, aim for around 29 Jun 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Tchad is close to normal, so these dates match the pattern the area usually follows.
Planting after 29 Jun 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Tchad
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 96% |
For bambara groundnut in Tchad, rain and temperature is the tightest of the three at 96%. This one is fixed. It is why the planting window above is where it is — hitting those dates is the whole of your control here.
The 2027 season in Tchad
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | May 2027 to October 2027 |
| Rain in a typical year | About 707 mm in a typical farming district |
| Across its districts | From about 5 mm in the driest of 70 districts to about 1,106 mm in the wettest |
| This season's rain | Rain close to usual — plan around about 707 mm falling roughly when it always does |
| This season's heat | Hotter than usual — about +1.4 °C over the growing months. Heat makes the same rain do less, so a dry spell bites sooner: do not plant late, and shade or mulch what you can. |
| What that supports | enough rain for one short crop, and only if timed to it, warm all year, so nothing but rain ends the season |
| Ground this covers | 2 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area. |
| 65% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 30 mm · July to September |
|---|---|
| 30% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 146 growing days · about 710 mm · May to October |
last updated 18 September 2026 · from all 70 areas within it
Frost and pest pressure hold back about 15% of yield here.
What bambara groundnut needs to grow here
| Soil it likes | well-drained sand or sandy loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.0 and 6.5 |
| Spacing | 40 cm between rows, 15 cm between plants |
| Feed it most with | phosphorus and calcium |
What it takes to grow bambara groundnut in Tchad
| Planting material | About 125,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 95 kg per hectare — the crop fixes most of this itself; inoculated seed matters more than a bag |
| Phosphate (P₂O₅) | About 19 kg per hectare |
| Potash (K₂O) | About 48 kg per hectare |
| In the shops | A basal compound at planting — Compound D, or an NPK blend — covers the phosphate and potash. Skip the nitrogen top dressing; inoculated seed does that job. |
| Hand work | 77–157 days per hectare, by hand |
These are the nutrients a bambara groundnut crop of that size carries off the field. What you actually apply depends on what your soil already holds — which is what a soil test, or the app's field records, tell you.
What to watch for
Grow Bambara groundnut with a plan, not a guess
Everything above describes Tchad as a whole — your own soil, slope and rainfall will shift the dates. The Divisi app works them out for your field, and dates each job that follows.
Bambara groundnut in nearby districts
This calendar moves
Planting windows shift with the forecast. Leave your email and we'll send what changed, and a note when planting time nears — a couple of emails a month at most.
Frequently asked questions
Will bambara groundnut grow well in Tchad?
Tchad rates as favourable for bambara groundnut.
When should I plant bambara groundnut in Tchad?
Typically 19 Jun 2027 to 29 Jun 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Tchad, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
