To determine the Economic Optimum Nitrogen Rate (EONR), which is the rate of nitrogen (N) that maximizes profitability. All entries received 30 units of N as UAN in a 2x2 application at planting. This was followed by a sidedress application of UAN at the V3 growth stage, meeting the total amount of N for each treatment.

2016 Indiana Corn Nitrogen Rate Study - Corn After Soybeans

The seven-year EONR for a corn after soybean rotation is a good place to start when planning your N program. Having the flexibility to make changes to your N program during the season is key. The 2016 season was a prime example, with an EONR of 225 units of N/A.

 Pre: 3.5 oz. Corvus®, 1 qt. Atrazine Post: 3 oz. Capreno®, 1 qt. Roundup PowerMAX® | 

2021 Iowa Corn Thin Stand Management Study - Fungicide Response

2021 Iowa Corn Sulfur Rate & Timing Study

Nitrogen Rate Study

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