A multi model evaluation of long-term effects of crop management and cropping systems on nitrogen dynamics in the Canadian semi-arid prairie

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• 作者：B. Dutta^a ; ^{Baishali.Dutta85@gmail.com} ; B.B. Grant^a ; C.A. Campbell^a ; R.L. Lemke^b ; R.L. Desjardins^a ; W.N. Smith^a
• 关键词：Long term study ; Spring wheat ; Nitrogen use efficiency ; Model comparison ; N balance
• 刊名：Agricultural Systems
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：151
• 期：Complete
• 页码：136-147
• 全文大小：986 K
• 卷排序：151

文摘

Application of process based models for estimation of N dynamics for long term study Models tested for N budgets in spring wheat cropping systems in western Canada DNDC and DayCent well estimated grain yields, above-ground biomass and N uptake DNDC estimations of N budget and N use efficiency in good agreement to observations Model simulations explained unaccounted N balance in observations