This study aimed to (i) determine the long-term effects of no-till with CCs and varying nitrogen (N)rates on subsequent sorghum [Sorghum bicolor (L.) Moench] yield and yield components, (ii) assess how CCs affect the N dynamic in the soil-crop relationship during the growing season and N use efficiency (NUE) of sorghum,and(iii) define and evaluate important periods of nitrous oxide (N2O)losses throughout the cropping system.