The purpose of this study is to compare various sidedress additives and their impact on yield and profitability.

2018 Multi-Location Corn Sidedress Additive Study

2-YEAR MULTI-LOCATION SIDEDRESS ADDITIVE RETURN ON INVESTMENT

The products tested in this study contain fertilizer, humic acid, carbon or a combination of both. Our multi-location testing showed little response with these fertilizer products. This could be because we already had sufficient levels of fertility at these PFR sites, so large yield responses would not be expected from the addition of extra fertility. However, the Humika™ product showed a positive yield increase and return on investment across all of these testing sites. Humika is a formulation of humic and fulvic acids as well as carbon sources. We suspect that this increased the availability of already present nutrient sources in the soil, resulting in greater yield and likely, greater fertilizer use efficiency.

Humika™, Feast® Micro Master® Complexed Boron 10.0%, UltraMate LQ®, Feast® Side-Kick® 0-0-25 w/17S

2021 Iowa Corn Thin Stand Management Study - Fungicide Response

2021 Iowa Corn Sulfur Rate & Timing Study

Sidedress Additive Study

2018 Multi-location Corn Sidedress Additive Study

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