Western Research and Demonstration Farm
Soybean genetics are changing yearly with improved yield and/or resistance capabilities. Additionally, small plot research from Iowa State University indicates a seeding rate of 125,000 to 140,000 seeds/acre depending on environmental, weather, and risk of pathogens. This trial was designed to demonstrate this recommendation on a local site with local conditions.
Iowa State University
Licht, Mark A., "Soybean Planting Dates and Populations" (2011). Iowa State Research Farm Progress Reports. 290.