With the unpredictability of N fertilizer prices has come a rise in alternative sources of N such as animal manure. However, manure management presents producers with a number of challenges, including the variability and uncertainty of N form and quantity in manure, mineralization of organic N, and effects of application methods. Producers in Kansas often top-dress winter wheat with supplemental in-season N on manure-amended soils; however, considering the aforementioned concerns additional research is needed to assist in determining the appropriate amount of fertilizer to add in these situations.