An optimal regional nitrogen application threshold for wheat in the North China Plain considering yield and environmental effects

Wang, Hongyuan; Zhang, Yitao; Liu, Hongbin; Zhai, Limei; Zhang, Yitao; Chen, Anqiang; Lei, Baokun; Ren, Tianzhi; SCI

机构： Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Nonpoint Source Pollut Control, Beijing 100081, Peoples R China; Univ New Hampshire, Inst Study Earth Oceans & Space, Earth Syst Res Ctr, Durham, NH 03824 USA; Yunnan Acad Agr Sci, Agr Environm & Resources Inst, Kunming 6502052, Peoples R China; Minist Agr, Inst Agroenvironm Protect, Tianjin 300191, Peoples R China;

关键词： Wheat yield Nitrogen application rate Soil inorganic nitrogen residual Nitrate nitrogen leaching Ammonia volatilization Nitrogen threshold