The purpose of this study is to compare 15 in. and 30 in. rows, at various planting populations, in an attempt to determine the Economic Optimum Seeding Rate (EOSR) for each row width.

2020 Kentucky Corn Row Width & Population Study - 15 In. vs. 30 In. Rows

The 15 in. rows showed an advantage at higher populations, but the ROI difference would require quite a few acres to pay off the additional equipment costs.

 Fall: In-Line Rip, Spring: Field Cultivation | 

 Burndown: 1 pt. 2,4-D, 1 qt. Cornerstone® Plus Pre: 15 oz. Verdict®, 1 qt. Atrazine, 1 qt. Roundup PowerMAX® Post: 3 oz. Laudis®, 3.2 oz. Zidua® SC, 1 qt. Cornerstone® Plus | 

 P 45.5, K 141, S 7, Zn 3.6, Mn 39, B 0.45

2021 Iowa Soybean SINGULATION STUDY 15 IN. ROWS

2021 Iowa Soybean REPLANT THRESHOLD STUDY 30 IN. ROWS

Row Width & Population Study - 15 In. vs. 30 In. Rows

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