The objectives of this project are to identify the optimum soybean seeding rate for three planting date windows and determine the cause of soybean self-thinning. In Ohio, soybeans are often planted the fourth week of May and into the first week of June or even later, due to wet weather. When soybeans are planted later, certain adjustments need to be made such as increasing the seeding rate. This study helps identify the optimum soybean seeding rate for four planting date timeframes: early May, late May, early June and late June.

Key Benefactors:
farmers, agronomists, extension agents