The purpose of this study is to evaluate the use of a silicon product, applied at various growth stages, and its impact on yield and profitability.

2019 Southern Illinois Soybean Silicon Study - Rate and Timing

Late-season stress may have helped elicit a response to the R3 application of silicon.

Fall: Vertical-Till/In-Line Rip, Spring: Vertical-Till | 

Burndown: 40 oz. Roundup PowerMAX® Pre: 28 oz. Authority® Elite, 4 oz. Metriclude™ EXT, 1 qt. Liberty® Post: 1 qt. Liberty®, 4 oz. Anthem® Maxx, 4 oz. Section® Three | 

 Cisne & Hoyleton-Darmstadt (Silt Loam) | 

 P 129, K 121, S 7, Zn 10.5, Mn 59, B 0.5

1 pt. Mainstay SI @ V4, 1 pt. Mainstay SI @ R3, 1 qt. Mainstay SI @ R3, 1 pt. Mainstay SI @ V4 + 1 pt. Mainstay SI @ R3

2021 Iowa Soybean SINGULATION STUDY 15 IN. ROWS

2021 Iowa Soybean STARTER FERTILIZER STUDY 2X2X2

Silicon Study

2019 Southern Illinois Soybean Silicon Study - Rate And Timing