The purpose of this study is to compare multiple row widths at various planting populations in an attempt to determine the Economic Optimum Seeding Rate (EOSR) for each row width.

2018 Iowa Soybean Row Width and Population Study

Our multi-year, multi-location data has shown a trend toward a higher return on investment (ROI) with lower seeding rates in soybeans. The early planting date in this study allowed for an increased capture of sunlight and additional nodes, which resulted in increased yields. Keep in mind, this can be somewhat situational as we often recommend higher seeding rates as planting dates get later into the spring, or in other situations such as planting into lighter soil types. This study confirms that when planting early, thin stands can provide excellent yield levels and do not necessarily need to be replanted if weed control can be managed.

Pre: 10 oz. Authority® Assist Post: 4.5 oz. Anthem® Maxx, 1 pt. Dual II Magnum®, 29 oz. Liberty® | 

2021 Iowa Soybean SINGULATION STUDY 15 IN. ROWS

2021 Iowa Soybean STARTER FERTILIZER STUDY 2X2X2

Row Width and Population Study

2018 Iowa Soybean Row Width And Population Study

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