TY - JOUR A1 - Wang, G. L. A1 - Ye, Y. L. A1 - Chen, X. P. A1 - Cui, Z. L. T1 - Determining the optimal nitrogen rate for summer maize in China by integrating agronomic, economic, and environmental aspects JO - Biogeosciences J1 - BG VL - 11 IS - 11 SP - 3031 EP - 3041 Y1 - 2014/06/11 PB - Copernicus Publications SN - 1726-4189 UR - https://bg.copernicus.org/articles/11/3031/2014/ L1 - https://bg.copernicus.org/articles/11/3031/2014/bg-11-3031-2014.pdf DO - 10.5194/bg-11-3031-2014 ER -