Divisi
When to plant Finger millet in Bosso
Diffa, Niger
Known here as tamba
Finger millet (rapoko, rukweza, zviyo, wimbi, uphoko, mawere, dagussa, uburo) is a hardy highland grain that grows where maize and sorghum give up — high up cool slopes and right through dry spells that would wilt other crops.
| Fit | Favourable |
|---|---|
| When to plant | 28 Oct 2026 – 17 Nov 2026 opens in 4 weeks |
| Expected harvest | about 3.0 t/ha |
| Harvest | From 26 Jan 2027 to 27 Mar 2027, depending on the planting date |
| Ready to harvest | 90–130 days after planting |
| Work it takes | 74–124 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 28 Oct 2026. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Bosso is close to normal, so these dates match the pattern the area usually follows.
Planting after 17 Nov 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Bosso
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 96% |
For finger millet in Bosso, 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 season in Bosso
| Rain in a typical year | About 195 mm |
|---|---|
| This season's rain | Rain close to usual — plan around about 195 mm falling roughly when it always does |
| What that supports | too dry for rain-fed cropping without irrigation, warm all year, so nothing but rain ends the season |
| Ground this covers | 2 kinds of ground. The season below is the largest that farms — about 94% of this area. |
| 94% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 210 mm |
|---|---|
| 6% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 190 mm |
last updated 17 September 2026
Frost and pest pressure hold back about 15% of yield here.
What finger millet needs to grow here
| Soil it likes | well-drained sandy loam, loam or clay loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 7.0 |
| Rain it needs | About 500–1,000 mm across the season |
| Spacing | 25 cm between rows, 10 cm between plants |
| Feed it most with | nitrogen and phosphorus |
What it takes to grow finger millet in Bosso
| Nitrogen (N) | About 39 kg per hectare |
|---|---|
| Phosphate (P₂O₅) | About 27 kg per hectare |
| Potash (K₂O) | About 21 kg per hectare |
| In the shops | A basal compound at planting — Compound D, or an NPK blend — covers the phosphate and potash. A nitrogen top dressing — urea or AN — goes on once the crop is established. |
| Hand work | 74–124 days per hectare, by hand |
These are the nutrients a finger millet 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 Finger millet with a plan, not a guess
Everything above describes Bosso 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.
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 finger millet grow well in Bosso?
Bosso rates as favourable for finger millet.
When should I plant finger millet in Bosso?
Typically 28 Oct 2026 to 17 Nov 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Bosso, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.