Planting Instructions:
Soybeans are a tender plant and should be sown after all danger of frost has passed and the soil has warmed. Planting them at about the same time as corn is a good rule.
Sow seeds about one inch deep, three to four inches apart. Although you can plant in rows, they can be planted densely and allowed to form a canopy. This will help control weed growth. Soybeans are tolerant of drought and poor soil since they fix nitrogen. They will, however, benefit from fertile soil.
Soybean flowers are perfect (self-fertile) and cross pollination is almost non-existent, making saving seed easy. Allow pods to fully develop and dry on the plants.
Informational References:
- "Evaluation of the USDA Soybean Germplasm Collection: Maturity Groups 000-IV (PI 507670-PI 574486),"
Hill, J.L., E.K. Peregrine, G.L. Sprau, C.R. Cremeens, R.L. Nelson,
J.H. Orf, D.A. Thomas, USDA Technical Bulletin 1915, 2005.