Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou 350013, P.R. China;
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, P.R. China;
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, P.R. China;
Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou 350013, P.R. China;
Nitrogen fertilizer; Denitrification; Nitrous oxide; Maize; Grain yield;