Legacy nitrogen fertilizer in a rice-wheat cropping system flows to crops more than the environment
Xu Zhao 1Yingying Wang 2Siyuan Cai 3Jagdish K.Ladha 4Michael J.Castellano 5Longlong Xia 3Yingxin Xie 6Zhengqin Xiong 7Baojing Gu 8Guangxi Xing 3Xiaoyuan Yan1