How to grow pearl millet

Decide months ahead — this runs from about 4 months down to 1 month before sowing — which field will carry the millet, and remember what grew there last season.

Rotate with a legume — cowpea, groundnut or a bean — the season before. A legume plays a trick on Striga: its roots make the buried Striga seeds wake up and sprout, but with no millet root to feed on they starve and die. The legume also leaves free nitrogen in the soil for the millet.

Don't follow millet with millet on land where Striga or mildew has been a problem. If you have no choice, plan to intercrop a legume between the millet rows this season instead.

Line up downy-mildew-treated seed now (see the next task) — it is your single best defence against the disease, and the good varieties sell out early.

Buy certified, downy-mildew-treated seed from a registered dealer — a sealed, labelled bag, not grain scooped from a sack. The treatment is usually a coloured coating on the seed; it guards the seedling through its most dangerous first weeks.

Choose a variety that matches your rains: a short-season type (60–90 days) where the rains are short, a longer one where they last. Millet is a short-day plant — it flowers as the days grow shorter — so sow local long-season types on time, or they flower too late and the heads meet the dry, cold weather.

Plan your sowing date so the crop flowers after the worst heat has passed — flowering falls about 6–8 weeks (40–55 days) after sowing, and heat above about 40 °C while the head flowers leaves it half-empty. Count back from your hottest, driest weeks and pick a variety whose flowering lands in cooler, moister weather.

Buy the basal fertiliser your recommendation gives — for millet this is mostly phosphorus (P), which drives early root and tiller growth. Millet needs far less fertiliser than maize, so don't overbuy.

Store seed and fertiliser dry, off the floor, and well away from food, water and children. Keep the label and receipt in case the seed turns out poor.

In the weeks before the rains, clear weeds and old crop trash off the planting lines (you can leave some trash between the rows to hold moisture and slow the wind).

Loosen the topsoil and break the clods to a fine crumb — aim for soil like coarse flour on top. The finer the tilth, the more evenly the tiny seed comes up.

Firm the bed lightly so the fine seed will meet solid, moist soil underneath instead of dropping into deep cracks. On loose sand, a light press with your foot or a plank is enough.

Level the surface. On a slope, work across the slope, or make small basins or tied ridges — millet lives on little rain, so catch every drop you can.

Use only well-rotted manure or compost — dark, crumbly, no strong smell. Fresh, strawy dung needs more time to break down.

Spread it thin and even across the whole field — about a wheelbarrow-load every few strides, never heaps in one spot. Millet has a low fertility need, so a little goes a long way; follow your recommendation for the exact amount.

Work it into the topsoil about 1–2 weeks before you sow (roughly 14 days out), so it settles in and starts feeding the soil.

Sow on a soaking rain — push your hand into the soil and it should be moist to about 20 cm down, as deep as your hand, not just damp on top. Millet needs little rain overall, but the seed must still reach moisture to sprout.

Mix the fine seed with a few handfuls of dry sand, ash or dry soil before sowing — about one part seed to four parts sand. This is the only way to spread such tiny seed evenly by hand and stop it clumping.

Sow a finger-joint deep (3.5–5 cm) in rows about three hand-spans apart (≈60 cm) — anywhere from 45 to 90 cm is fine. On loose, dry sand sow toward the deeper end to reach moisture; on firmer soil, shallower.

Place the basal phosphorus below the seed and cover it with a little soil first — the seed burns and dies if the fertiliser touches it. Your recommendation gives the amount.

Sow a little thick — the tiny seed never all comes up, and you will thin to the strongest plants later. Cover lightly and firm the soil so the seed sits snug in moist earth.

At 25–30 °C the seedlings break ground fast — in just 2–3 days. Be ready to start scouting and rogueing from the end of the first week.

From about 5 days after sowing, walk the field twice a week (every 3–4 days). Cross it in a big “W” so you cover the corners and the middle, not just the edge by the path.

Look for downy mildew: seedlings with pale, yellow-streaked leaves and a white, powdery felt on the underside of the leaf (clearest in the cool of the morning). It is carried on seed and in soil and spreads fast — mark these plants to pull (next task).

Look for Striga starting as tiny plants at the base of the millet, and pull any you see on sight, before they take hold.

Count the gaps — stretches of row with no plants — so you know where to move thinnings into later.

Check that the greening is even across the rows. Patchy emergence warns of poor seed contact or a crusted seedbed.

From about a week after sowing (day 7), and every 5–7 days after that, walk the rows and pull out every seedling with pale, yellow-streaked leaves and white felt underneath.

Pull the whole plant, roots and all, and carry it right out of the field — don't drop it between the rows.

Burn it or bury it deep. Never leave pulled plants to dry on the field, feed them to animals, or put them in compost — any of these spreads the spores.

Keep at it as new cases show, up to about 5 weeks after sowing. Later, watch also for a “green ear” — a head that comes out leafy, twisted and grainless — and cut and destroy those the same way.

At about 10–18 days after sowing, once the seedlings are a few finger-joints tall and you can tell the strong from the weak, thin each hill.

Leave the two strongest plants per hill, with hills about a hand-span apart (≈20 cm) along the row. Nip out the extras at ground level rather than yanking them, so you don't disturb the roots you are keeping.

Move healthy thinnings into the gaps: lift each one with a little ball of moist soil, in the cool of evening, set it at the right spacing, and firm it in. Water them if you can.

Never keep or transplant a mildewed seedling — those get pulled and destroyed, not moved.

Weed by about 2–3 weeks after sowing (14–21 days), before the weeds grow bigger than the millet.

Hoe shallowly between and along the rows — millet's feeding roots sit near the surface, and deep hoeing cuts them.

Pull the weeds close to the plants by hand, so you don't uproot the young millet along with them.

In dry areas, leave the pulled weeds lying between the rows as a light mulch (a cover of dead plant matter) to hold moisture.

For irrigated fields only. Give small amounts, often rather than a flood — millet hates sitting in water, and the fine seedbed crusts over if you flood it.

Check with a finger: water when the top is dry to a finger-joint (3–5 cm), roughly every 5–7 days, and more often on hot days and loose sand.

Ease off as the plants take hold — millet is built to grow on little, and over-watered plants root shallow and soft.

From about 3 weeks after sowing (20–40 days), twice a week (every 3–4 days), walk the “W” and look closely at about 10 plants at several stops.

Stem borer: look for neat rows of small “shot-holes” across the unfolding leaves, and deadheart — the central shoot dries out and pulls free easily when you tug it. You may see moist, sawdust-like droppings where a caterpillar has bored in.

Striga (witchweed): look for small, bright purple or pink flowering weeds at the base of the millet; the crop above stays stunted and yellow even where you have fed it. Pull them (see the Striga task).

Millet head miner: the small moths are about now and lay their eggs on the crop; their caterpillars attack the heads later. Note where they are worst so you watch those heads closely at flowering.

Colour: pale, yellowing lower leaves mean nitrogen hunger — a sign it is time to top-dress (next task).

Count how many of 10 plants show fresh borer damage. If about 1 in 20 to 1 in 10 (5–10 in every 100) show fresh deadheart or whorl feeding, you are at threshold — treat the whorls now, while the grubs are still small and feeding in the whorl and before they tunnel into the stem where nothing can reach them.

Weed again at about 4–5 weeks after sowing (25–35 days), before the weeds seed or grow taller than the crop.

Hoe shallowly, and pull the weeds close to the plants by hand.

Time it just before you top-dress the nitrogen, so the feed goes to the millet and not to the weeds.

Feed at about 3–4 weeks after sowing (22–30 days), on moist soil (after a weeding or a light rain), so the nitrogen washes in instead of gassing off into the air.

Band it in a line about a hand's width (≈10 cm) to the side of the row and cover it with soil — never on top of the plants or on wet leaves.

Keep the dose small. Millet has a low fertility need, and micro-dosing — a tiny measured pinch of NPK or DAP per hill (share one bottle-cap between several hills) — is the most cost-effective way to feed it. Your recommendation gives the amount.

Don't feed again after this. More nitrogen late only grows leaf and makes the plant lodge — fall over — in the wind.

From about 3 weeks after sowing (day 20), and every 5–7 days, walk the rows and pull every small purple or pink Striga plant you find at the base of the millet.

Pull it before the flowers open and set seed — this is the whole point. Once it seeds, you have fed the soil with Striga for years to come.

Carry the pulled Striga out of the field and burn or bury it — never leave it to dry and shed seed, and never put it in compost.

Remember the real cure runs in the background: a well-fed crop and a legume rotation make Striga far weaker. Hand-pulling just mops up what is left.

For irrigated fields only. Water only when the crop is truly dry — you can stretch it to every 7–12 days; mild dryness here does little harm and toughens the plant.

Check with a finger before watering, and don't keep the soil constantly wet.

Save your water and effort. The stage that must never go dry is flowering, and it is coming next.

Once the heads start to show, check them every day — walk the crop and look closely at heads across the whole field, not just the edge.

Millet head miner: look for a caterpillar tunnelling along the head, leaving a spiralling scar and bare patches with no grain, and fine droppings on the spike.

Ergot: look for sticky, sweet, pinkish droplets (“honeydew”) oozing from the flowers; later these harden into dark, curved bodies in place of grains. Ergot is poisonous — never eat affected grain. Cut and destroy these heads.

Smut: look for scattered grains swollen into shiny green-black sacs that burst to a black powder. Cut and destroy these heads too.

Cut any ergot or smut head straight into a bag on the spot (don't shake spores over the crop), then burn or bury it — see the cut-heads task.

Keep the soil moist right through booting and flowering — from about 6 to 8 weeks after sowing (40–55 days).

Water every 5–7 days, and more often in heat. This one watering beats watering at any other stage.

Never let the crop wilt here, even for a single day — every wilted day at flowering costs grains that will never form.

Walk the rows one last time around flowering (6–8 weeks after sowing) and pull every remaining Striga plant at the base of the millet.

Get them before the purple flowers set seed — that is the whole point of this pass.

Carry them out and burn or bury them; never leave them to ripen and shed seed on the ground.

Every 2–3 days during flowering, cut out any head showing ergot (sticky honeydew, or hard dark bodies in place of grain) or smut (green-black sacs of black powder).

Hold a bag under the head and cut it straight into the bag, so you don't shake spores over the healthy crop.

Burn or bury the cut heads deep, away from the field and the animals. Do not eat, sell, or feed out ergot- or smut-affected grain — ergot is poisonous.

Remember that at storage you can also float off the light ergot and smut bodies in salty water before saving any seed (see the storage task).

Start the day grain reaches the milk stage — pinch a grain and a milky liquid comes out (about 8 weeks / 55 days after sowing) — and keep going every day until harvest.

Be out in the field at the birds' busiest times — early morning and late afternoon. This is a daily job that cannot be skipped.

Use noise and movement: shout, bang tins, crack a whip or a cloth, and rig scare-lines — strips of cloth, old cassette tape or plastic bags strung across the field that flap and flash in the wind.

Move your scarecrows and rattles around every few days — birds quickly learn that a thing which never moves is harmless.

Share the watch with neighbours whose millet ripens at the same time — many fields guarded together lose far less than one field guarded alone.

From about 8 weeks after sowing (55–90 days), once a week, walk the field, check a sample of heads, and look over the standing crop.

Head miner: check heads for late tunnelling and bare, grainless patches, and note if it is spreading.

Lodging: after wind or storms, look for plants leaning or flattened — heads on the ground rot and feed rats and birds. Prop up or harvest badly lodged plants early.

Birds and rats: watch the field edges for feeding damage as the grain hardens, and step up your scaring where they hit hardest.

If a patch is lodged or heavily mined, cut and carry those heads early rather than lose them.

For irrigated fields only. Keep light water coming through the milk and early dough stages while the upper leaves are still green — every 7–10 days.

As the leaves yellow and the heads harden, taper off the watering.

Stop watering well before maturity so the heads can dry down in the field.

From about 11–13 weeks (80–90 days) after sowing, check a few heads from different plants.

The crop is ripe when the leaves have yellowed and dried, the grains are hard and pop out cleanly when you pinch the head, and a dark layer has formed at the base of the grain — the plant's own sign that filling is finished.

Bite a grain: ripe grain is hard and cracks, not soft or doughy.

If the grains are still soft, milky or doughy and bend when bitten → they are not ready: wait a few more days, keep scaring birds, and check again. Cut early only if storms or heavy bird pressure threaten — then dry the heads under cover.

Harvest when the leaves yellow and dry, the grains are hard and pop out cleanly when you pinch the head, and a dark layer has formed at the grain base (about 20% moisture — hard and cracking, not doughy).

Cut the candles (the heads) by hand with a knife or sickle, leaving most of the stalk standing, and carry them to a clean, dry place to finish drying.

The crop ripens in waves — cut the ripe main-stem heads first, then come back every 7–10 days for the later tiller heads as they harden. Expect two or more picks.

Handle ripe heads gently and carry them in baskets or on a sheet — knocking or dragging them shatters grain onto the ground.

If the grains are still doughy or soft → they are not ready: leave those heads to ripen and keep scaring birds. Cut early only if storms or heavy bird pressure force your hand — then dry the heads well under cover.

Dry the heads or threshed grain on a clean raised surface, mat or tarpaulin — never on bare soil, which pushes damp back in and adds mould, grit and animal dirt. Spread it thin, turn it often, and cover it if rain threatens.

Bite test: the grain is dry enough to store when it is hard and cracks or shatters — not bends or dents — under your teeth (below about 13% moisture; below 12% if you're keeping it longer than 6 months). If it bends or dents, it is still too wet → dry it more before sealing.

Thresh the dry heads (beat them gently in a bag or on a mat), then winnow — pour the grain in a breeze so the wind carries off the light chaff and dust — because pests breed fastest in the trash.

Before saving any seed, float the clean grain in salty water (salty enough to float an egg): the light ergot and smut bodies and empty grains rise to the top — skim and destroy them, then rinse and re-dry the good seed.

Store sealed: put the dry, clean grain in airtight bags (hermetic, or PICS bags) or a clean, sealed granary or drum, off the floor and away from the wall, in a cool dry place. A tight seal suffocates weevils with no chemicals.

Check the store once a month for warmth, moths, or grain with small round holes and fine powder (weevils) — act early if you see any.