Names
Scientific synonyms (3): Phaseolus max L., Phaseolus sordidus Salisb., Soja max (L.) Piper.
In other languages
- en: reseeding soybean, soybean, wild soybean
Where it is recorded
- USDA PLANTS: GLMA4
- GRIN: 17711
- POWO: urn:lsid:ipni.org:names:60450240-2
- Wikidata: Q11006
Taxonomy record sources: POWO (CC BY 4.0), USDA_PLANTS_CATALOG (Public Domain). Loaded from the botanica open cultivated-plant knowledge base and the GBIF backbone; each row keeps its origin.
Growth stages
- Initial: about 15 days (FAO 56 Table 11: planted Dec, Tropics)
- Crop development: about 15 days (FAO 56 Table 11: planted Dec, Tropics)
- Mid-season: about 40 days (FAO 56 Table 11: planted Dec, Tropics)
- Late season: about 15 days (FAO 56 Table 11: planted Dec, Tropics)
What the sources say it wants
Each line shows the band, then the kind of source and the citation. "Published" means the number is printed on the cited page; "derived" means it was computed from published numbers with the formula recorded on the row; "external API" rows are refreshed nightly from a live source; "curated" rows are OAT's own working values from June 2026.
Whole cycle
| Zone | Measure | Band | Source |
|---|---|---|---|
| Root zone | Root-zone EC (dS/m) | up to 5 (warning above 5.5, alert above 6.3) | published: FAO Irrigation and Drainage Paper 29, 1985 |
Initial
| Zone | Measure | Band | Source |
|---|---|---|---|
| Timing | Crop coefficient, initial stage (ratio) | 0.4 | published: FAO Irrigation and Drainage Paper 56, 1998 |
Mid-season
| Zone | Measure | Band | Source |
|---|---|---|---|
| Timing | Crop coefficient, mid-season (ratio) | 1.15 | published: FAO Irrigation and Drainage Paper 56, 1998 |
Late season
| Zone | Measure | Band | Source |
|---|---|---|---|
| Timing | Crop coefficient, end of season (ratio) | 0.5 | published: FAO Irrigation and Drainage Paper 56, 1998 |
Phenophases observed by the USA National Phenology Network
10 phenophases are tracked for this species and refreshed nightly, as stage triggers: All leaves withered, Flowers or flower buds, Fruits, Initial growth, Leaves, Open flowers, Recent fruit or seed drop, Ripe fruits.
Keystone status
Partial. The KEEP rule asks for a growth stage and a band in each of light, air and root zone before a crop counts as complete; this plant is in the keystone with what its sources give so far.
Generated 2026-09-15 from the OAT plant keystone. Source types and citations are carried on every row; the keystone snapshot that the Library instruments read is plant-targets.json and its quality sheet is plant-targets.quality.json.