Optimal nitrogen input for higher efficiency and lower environmental impacts of winter wheat production in China

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Optimal nitrogen input for higher efficiency and lower environmental impacts of winter wheat production in China

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作者：Hui Liu^b ; Zhaohui Wang^a ; ^b ; ^{w-zhaohui@263.net" class="auth_mail" title="E-mail the corresponding author} ; Rong Yu^b ; Fucui Li^b ; Keyi Li^b ; Hanbing Cao^b ; Ning Yang^b ; Menghua Li^b ; Jian Dai^b ; Yaling Zan^b ; Qiang Li^b ; Cheng Xue^b ; Gang He^b ; Donglin Huang^b ; Ming Huang^b ; Jinshan Liu^b ; Weihong Qiu^b ; Hubing Zhao^b ; Hui Mao^b
关键词：WM ; winter wheat&ndash ; summer maize rotation region ; WR ; winter wheat&ndash ; rice rotation region ; RW ; rainfed winter wheat region
刊名：Agriculture, Ecosystems & Environment
出版年：2016
出版时间：15 May 2016
年：2016
卷：224
期：Complete
页码：1-11
全文大小：3384 K

文摘

•: Nitrogen rate is optimized for winter wheat by balancing grain yield and protein.
•: Recommended N rates improve grain yield by 1–19% and protein by 2–9%.
•: Recommended N rates increase N partial factor productivity by 7–24 kg kg⁻¹.
•: Recommended N rates reduce residual N, N leaching, and N₂O emissions by 8–52%.

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