Fates and use efficiency of nitrogen fertilizer in maize cropping systems and their responses to nutrient management practices: a global analysis on field 15N tracer studies

Zhi Quan1, Xin Zhang2, Feifei Zhu1, Shanlong Li1, Xinghan Zhao1, Xin Chen1, Limei Zhang3, Jizheng He3, Wenxue Wei4 and Yunting Fang1, (1)Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China, (2)University of Maryland Center for Environmental Science Appalachian Laboratory, Frostburg, MD, United States, (3)Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China, (4)Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
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