Ohio’s corn nitrogen recommendation tool is the Corn Nitrogen Rate Calculator (https://www.cornnratecalc.org/). The Ohio database has over 300 trials where four or more rates were applied to understand nitrogen response over various soils, hybrids, and weather conditions. However, questions still exist on how the Maximum Return to Nitrogen (MRTN) rate affects yield and profitability on individual farms.
Treatments:
- 100 lbs. N Higher than MRTN Rate
- 50 lbs. N Higher than MRTN Rate
- MRTN Rate
- 50 lbs. N Lower than MRTN Rate
Questions? Contact Agronomic Systems Field Specialsit Greg LaBarge at labarge.1@osu.edu