Optimizing N applications increases maize yield and reduces environmental costs in a 12-year wheat-maize system - Shuaijie Shen; Biao Feng; Datong Zhang; Jun Zou; Yuhao Yang; Robert M. Rees; Cairistiona F.E. Topp; Suya Hu; Bowen Qiao; Wenhai Huang; Hongbao Sun; Shiwei Zhou; et al. (Field Crops Research, 2025)