Legumes & Pulses· Glycine max
Guide de culture du Soybean
Major oilseed and protein crop. Nitrogen-fixing legume that improves soil fertility. Used for food, feed, and industrial products.
Conditions de croissance
Exigences du sol
Type de sol et pH
Meilleurs types de sol : loam, silt loam, clay loam
Plage de pH : 6 - 7 (optimal : 6.5)
Drainage : good
Besoins en nutriments (N-P-K)
Guide de plantation
Rendement et économie
Ravageurs et maladies courants
Ravageurs courants
- Soybean aphid
- Bean leaf beetle
- Japanese beetle
- Stink bugs
- Spider mites
Maladies courantes
- Soybean rust
- Phytophthora root rot
- Sudden death syndrome
- White mold
- Brown stem rot
Utilisez la pour identifier les problèmes tôt et prévenir les pertes de récolte.
Conseils de culture
Inoculate soybean seed with Bradyrhizobium japonicum bacteria before planting in fields without recent soybean history — this enables nitrogen fixation.
Soybeans fix their own nitrogen, so they rarely need N fertilizer. Applying nitrogen actually reduces nodulation and wastes money.
Plant when soil temperature reaches 13°C — soybeans are sensitive to cold soil and germinate poorly below 10°C.
The R1-R5 growth stages (flowering through seed fill) are the critical water demand period — irrigation during this window has the highest yield return.
Harvest at 13% seed moisture for direct combine harvest. Delay increases pod shatter losses, especially with dry weather and wind.
Soybeans are an excellent rotation crop before corn — they leave 40-80 kg/ha of nitrogen credit in the soil from fixation.
Questions fréquentes
How long does Soybean take to grow?
Soybean typically takes 100 days from planting to harvest. Seeds germinate in about 7 days. The best planting season is spring, early summer.
What soil does Soybean need?
Soybean grows best in loam, silt loam, clay loam soil with a pH of 6-7. Good drainage is required.
What temperature does Soybean need?
Soybean grows best at 20-30°C. Frost tolerance: none. Heat tolerance: moderate.
What is the expected yield for Soybean?
Soybean yields approximately 2,800 kg/hectare under good conditions.
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Termes agronomiques clés
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