Modern, elite soybean varieties respond well to early planting. Multi-year results from ISU research farms suggest that mid–April to early May planting dates most often produce top yields. Research farm and on-farm strip trials also suggest that elite varieties yield similarly over a wide range of seeding rates and resulting harvest populations. Based on these results, producers are advised to plant soybeans as soon as spring field conditions allow, with a seeding rate of 150,000 to 175,000 seeds/acre.
How to Cite:
Lundvall, J. & Whigham, K. & Westgate, M. E. & Farnham, D. E., (2002) “Using Fungicide-treated Seed for Very Early Soybean Planting”, Iowa State University Research and Demonstration Farms Progress Reports 2001(1).