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Effect of experimental warming on nitrogen uptake by winter wheat under conventional tillage versus no-till systems
Hou, Ruixing1,2; Xu, Xingliang1; Ouyang, Zhu1,2
2018-08-01
Source PublicationSOIL & TILLAGE RESEARCH
ISSN0167-1987
Volume180Pages:116-125
Corresponding AuthorXu, Xingliang(xuxl@igsnrr.ac.cn) ; Ouyang, Zhu(ouyz@igsnrr.ac.cn)
AbstractDespite the perceived importance of nitrogen (N) to growth and production of wheat, few studies have attempted to examine the effect of warming on wheat N uptake or its preference for NO3--N vs. NH4+-N, especially under different tillage systems. In the North China Plain, an experimental warming (2 degrees C increase in soil during the jointing stage) study was conducted using in situ N-15 labeling under till and no-till systems. We aimed to investigate the uptake of NO3--N, NH4+-N, and glycine-N by winter wheat. Warming strongly enhanced wheat biomass (14.7% and 13.2% for till and no-till, respectively) and N content in biomass (11.1 and 7.4 g N m(-2) for till and no-till, respectively). Total N uptake rates increased by 47% and 40% under till and no-till treatments, respectively. Warming changed the uptake pattern for the three N forms by significantly increasing the contributions of NO3-N by 16% and glycine-derived N by 5%, while decreasing the contribution of NH4+-N by 20% under the two tillage systems, on average. Collectively, high soil temperatures accelerated N uptake in winter wheat and improved the preferential contribution of NO3--N and glycine-N due to the increase in soil glycine and NO3- content. Our findings suggest that enhanced N uptake improved growth of wheat and could reduce N losses through increased uptake of NO3- under till and no-till systems in the North China Plain under the warmer conditions that are likely in future.
KeywordGlobal warming Inorganic nitrogen Nitrogen uptake pattern Organic nitrogen Winter wheat
DOI10.1016/j.still.2018.03.006
WOS KeywordLONG-TERM TILLAGE ; NORTH CHINA PLAIN ; SOIL CARBON ; TRITICUM-AESTIVUM ; ORGANIC NITROGEN ; CROPPING SYSTEMS ; GRAIN-YIELD ; AMINO-ACIDS ; TEMPERATURE ; PLANT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31670485] ; National key R D project[2016YFD030080803]
Funding OrganizationNational Natural Science Foundation of China ; National key R D project
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000433653300013
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54797
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXu, Xingliang; Ouyang, Zhu
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Yucheng Comprehens Expt Stn, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Hou, Ruixing,Xu, Xingliang,Ouyang, Zhu. Effect of experimental warming on nitrogen uptake by winter wheat under conventional tillage versus no-till systems[J]. SOIL & TILLAGE RESEARCH,2018,180:116-125.
APA Hou, Ruixing,Xu, Xingliang,&Ouyang, Zhu.(2018).Effect of experimental warming on nitrogen uptake by winter wheat under conventional tillage versus no-till systems.SOIL & TILLAGE RESEARCH,180,116-125.
MLA Hou, Ruixing,et al."Effect of experimental warming on nitrogen uptake by winter wheat under conventional tillage versus no-till systems".SOIL & TILLAGE RESEARCH 180(2018):116-125.
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