2021 Orthman Research Yield Book

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Corn Fertility Trial The purpose of this trial was to demonstrate the benefit of the fertilizer that was used during the strip-till operation. The fertilizer applied supplied 83.7 pounds of N, 63.4 pounds P2O5, 21.8 pounds of S, and 2.54 pounds of Zn. This was roughly 50% of our P2O5 and Zn program. We understood that we would have yield loss but wanted to quantitate how much profitability the fertility would bring us. Corn Fertility Results and Discussion At harvest we saw a response of 28.7 bu./ac to the fertility in the strip-till that resulted in $64.74/ac

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