No-till and reduced tillage production systems are widely used today in the United States and the world. Urea management in these systems is a challenge. When urea is surface applied, an average of 25% of the applied N is lost via ammonia volatilization, and losses can range from 0 to 50%. Traditionally, urea has been incorporated using tillage, thus avoiding losses of N and yield. This option is not available in no-till and some forms of reduced tillage. The objective of this project is to evaluate several strategies to reduce the risk of ammonia volatilization loss from urea applied to no-till corn and wheat. The tested strategies include treating urea with Agrotain urease inhibitor, use of polymer- or gel-coated urea, and knife injection of urea. In 2004, none of these strategies enhanced yield in either corn or wheat. Weather was favorable for ammonia volatilization losses in the wheat experiment, but yield response to N fertilizer was low. Two cm of rain within 36 h of treatment application minimized volatilization potential in the corn experiment. So far, based on visual observations and radiometer readings, the 2005 wheat experiment has shown promising results for urea treated with Agrotain as well as for gel-coated urea. The complete results for 2005 experiments will be presented.