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 Ohio Corn Nitrogen Rate Study - Corn After Soybeans

The ideal rate of nitrogen (N) will vary year to year in a given environment due to the mobile nature of N.

Stalk nitrate data for XL® 5828AMX™*brand showed the optimum level of nitrate remaining at black layer could be reached with an application of only 125 units of N in a growing season.

During 2016, 175 units of N was the most economical rate of N to apply in a corn after soybean rotation.

While it may not always be economical, in 2016 we saw higher yields with increased N rates.

"Data about everything you think about all year long is at your fingertips. From nitrogen timing and rates, there’s nothing else like it. I always have new ideas in my mind and I use PFR as a way to explore my options to better my farm practices."
Rob Alt | Baltimore, Ohio

Fall Disk-Rip, Spring Field Cultivation | 

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