LegumeAnnual / short-lived perennialWarm season

Pigeon Pea

Cajanus cajan

A deep-rooted, drought-resilient tropical legume for pulse and vegetable production, forage, green manure, windbreaks and diversified row-crop or orchard systems.

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Technical variety profile

At a glance

Pigeon pea combines a deep taproot, efficient nitrogen fixation and broad soil adaptation, but maturity, plant height and intended use vary substantially by cultivar.

Row-crop rate8–10 lb/acUSDA establishment guide

Cover / forage rate>20 kg/haDense stand guide

Planting depth≈4 cm / 1.5 in

Soil pH4.5–8.4

Best temperature18–30°C / 65–86°F

Seedling emergence2–3 weeks

Best fit

Where Pigeon Pea belongs

Drought-exposed tropical and subtropical row cropsPulse and fresh vegetable productionForage, browse and cut-and-carry systemsOrchard alleys, windbreaks and tropical agroforestryGreen manure, erosion control and soil restoration

#nitrogen#drought#forage#green-manure#pulse-crop

Why it performs

Three reasons to shortlist it

Drought-resilient structure

A deep taproot supports dry-season performance and helps keep living roots in warm production systems.

Multiple productive uses

Cultivars can be selected for pulse grain, fresh pods, forage, browse, green manure or semi-permanent hedgerows.

Legume contribution

Effective nodulation adds biologically fixed nitrogen to crop rotations, forage mixtures and orchard systems.

Technical data

Comparable specifications

Row-crop rate8–10 lb/acUSDA establishment guide

Cover / forage rate>20 kg/haDense stand guide

Planting depth≈4 cm / 1.5 inTechnical reference

Soil pH4.5–8.4Technical reference

Best temperature18–30°C / 65–86°FTechnical reference

Seedling emergence2–3 weeksTechnical reference

Growth habitErect, branching shrub legumeTechnical reference

Root systemDeep taprootTechnical reference

LightFull sunTechnical reference

Drought toleranceVery highTechnical reference

Waterlogging toleranceLow; free drainage requiredTechnical reference

Frost responseDefoliated or killed depending on severityTechnical reference

InoculationCowpea-group rhizobia where neededTechnical reference

Primary usesPulse, vegetable, forage, cover, green manureTechnical reference

Structural usesWindbreak, hedge and alley cropTechnical reference

Primary product documents

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Pigeon Pea Tech Sheet

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Ficha Técnica de Pigeon Pea

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Establishment

Build the stand correctly

01Plant in full sun when soil temperature is at least 64°F / 18°C and frost risk has passed.
02Drill into a clean, well-prepared seedbed about 4 cm deep; adjust spacing and rate to grain, forage or cover-crop use.
03Control weeds for the first six weeks because early shoot growth is slow while the taproot develops.
04Use cowpea-group inoculant where effective rhizobia are absent or uncertain.

Management

Turn potential into performance

Choose maturity class deliberately: short-duration and tall, photoperiod-sensitive types occupy very different calendars.
For forage, use at pre-flowering or as the first pods begin to develop, according to cultivar and feed plan.
Cut tall forage types high enough to retain regrowth points; avoid continuous heavy grazing and brittle-branch damage.
In orchards or intercrops, manage height, competition, access and harvest timing as separate design constraints.

Limitations & safety

Know where it does not fit

Pigeon pea does not tolerate waterlogged soil and is susceptible to frost and fire.
Cultivars differ greatly in height, flowering date, day-length response, grain type and forage quality.
Seedlings require early weed control, while mature branches can break under heavy grazing.
Fusarium wilt, sterility mosaic disease, pod insects and storage weevils can be important by region.

Technical resources