Plants
peanut
Arachis hypogaea L.
Family: Fabaceae · Genus: Arachis
groundnut
Annual nitrogen-fixing legume that produces its pod underground (geocarpic). Pasini lists it in the low stratum of Tabela 3. Excellent ground cover + green manure + human food in one species.
Götsch succession
- Götsch stage
- Placenta I
- Ecological role
- Pioneer
- Primary stratum
- Ground cover
- Strata
- Ground cover
- Biomass class
- Fertilizer biomass
Environment
- Light requirement
- Full sun
- Water requirement
- Moderate
- Drought tolerance
- Moderate
- Soil pH range
- 5.5–7
- Preferred soil texture
- Sandy, Loamy
- Frost tolerance
- 0.0 °C
Morphology
- Mature height
- 0.2–0.5 m
- Root system
- Taproot
- Root depth
- Medium
- Growth rate
- Very fast
- Lifespan
- ≤ 1 year
- Time to first harvest
- 4 months
Biomes & climate
- Atlantic Forest Suitable
- Cerrado Suitable
Köppen classes
- Tropical savanna with dry winter (Aw) Suitable
- Subtropical with dry winter (Cwa) Suitable
- Humid subtropical (Cfa) Suitable
Where it fits in a guild
Peanut takes the Ground cover stratum in the Placenta I phase of succession — in a guild it shares the line with species from the other strata, each harvesting light at its own height, in its own time. It also fixes nitrogen, feeding the soil for its line neighbors.
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❓ Frequently asked questions
How long until the first harvest of peanut?
The first harvest of peanut comes around 4 months after planting.
How tall does peanut grow?
At maturity, peanut reaches 0.2–0.5 m tall.
What stage and stratum does peanut occupy in a syntropic system?
In a syntropic system, peanut belongs to the placenta i stage, occupying the ground cover stratum.
Does peanut fix nitrogen?
Yes — peanut is a nitrogen-fixing species that helps fertilize the system's soil.
Functions
Propagation
Seed
Citations
- Pasini, F. & Guimarães, L. (2017) — Tabela 3 (Incaper) , p. 116 (primary_stratum)
- Duke, J. — Arachis hypogaea (Handbook of Energy Crops / Purdue NewCROP) (ph_min, ph_max, root_system, root_depth, frost_tolerance_c, time_to_first_harvest_months, soil_texture_preference)
- NC State Extension Gardener Plant Toolbox — Arachis hypogaea (frost_tolerance_c, propagation)
External references
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