The purpose of this study is to compare different boron application methods, at various timings, to determine their impact on yield and profitability.

2018 Central Illinois Soybean Boron Timing Study

Boron (B) is an important plant nutrient in soybeans for pol lination, flower retention, and seed set. The majority of B uptake in soybeans starts at the beginning pod stage (R3) and continues through full seed (R6). Another thing to consider with B is that it’s very mobile in the soil. Because of these factors, mid-to-late season foliar applications may be desirable. Despite the importance of B in plant nutrition, all the treatments evaluated in 2018 failed to provide a positive return on investment (ROI). A single foliar application of B near the R3 growth stage with a fungicide and insecticide may have a greater potential to provide a positive ROI.

 Pre: 1 qt. Authority® Elite, 1 qt. Roundup PowerMAX® Post: 4.5 oz. Anthem® Maxx, 1 qt. Roundup PowerMAX® |

Boron 10.0%, FurrowJet® Wings, 360 Y-DROP®

2021 Iowa Soybean SINGULATION STUDY 15 IN. ROWS

2021 Iowa Soybean STARTER FERTILIZER STUDY 2X2X2

Boron Timing Study

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