Nitrogen fertilization improved water-use efficiency of winter wheat through increasing water use during vegetative rather than grain filling

doi:10.1016/j.agwat.2017.11.010

ISWC OpenIR > 水保所科研产出--SCI > 2018--SCI

	Nitrogen fertilization improved water-use efficiency of winter wheat through increasing water use during vegetative rather than grain filling
	Wang, Linlin 1,2; Palta, Jairo A 3,4; Chen, Wei 6; Chen, Yinglong 1,4; Deng, Xiping 1; Chen, YL ; Deng, XP (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2018
发表期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
通讯作者邮箱	yinglongchen@hotmail.com ; dengxp@ms.iswc.ac.cn
卷号	197 页码:41-53
摘要	Water availability is a major constraint for wheat production in many semiarid regions of the world, including the Loess Plateau of China, and thus improving the water use efficiency (WUE) becomes a main research target. The impact of nitrogen (N) fertilizer on root growth, water use and WUE were examined for winter wheat grown in a semiarid farm on the Loess Plateau of China. A four-growing season field study (2011-2015) at the Changwu Agri-ecological Station, Changwu, Shaanxi, China with four rates of N fertilizer (0,60,120 and 180 kg N ha(-1)) were conducted to determine soil water balance, root growth, yield and WUE in each growing season. Soil water content at final harvest in each growing season was lower and evapotranspiration (ETg) was higher under N supply than under non-N fertilization. N supply increased root growth and root length density (RLD) in deeper layers of the soil profile (80-140 cm), and improved water uptake, above-ground biomass and WUEb during vegetative growth stage. Grain yield under 60, 120 and 180kg N h a(-1), increased by 12.8, 25.4 and 34.8%, respectively, with corresponding improvements in WUEg of 5.1,13.8 and 29.3%, respectively, when compared to the non-N treatment. Our results demonstrated that N applications improved dryland winter wheat WUEg by increasing deep root growth and water use during vegetative. (c) 2017 Published by Elsevier B.V.
关键词	Winter Wheat Nitrogen Root Systems Water Use Water-use Efficiency
学科领域	Agronomy ; Water Resources
DOI	10.1016/j.agwat.2017.11.010
收录类别	SCI
出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS记录号	WOS:000423001400005
出版者	ELSEVIER SCIENCE BV
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7847
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Chen, YL; Deng, XP (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China 3.CSIRO Agr & Food, Private Bag 5, Wembley, WA 6913, Australia 4.Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia 5.Univ Western Australia, Sch Agr & Environm, Perth, WA 6001, Australia 6.Baoji Univ Arts & Sci, Key Lab Disaster Monitoring & Mech Simulating Sha, Baoji 721013, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Linlin,Palta, Jairo A,Chen, Wei,et al. Nitrogen fertilization improved water-use efficiency of winter wheat through increasing water use during vegetative rather than grain filling[J]. AGRICULTURAL WATER MANAGEMENT,2018,197:41-53.
APA	Wang, Linlin.,Palta, Jairo A.,Chen, Wei.,Chen, Yinglong.,Deng, Xiping.,...&Deng, XP .(2018).Nitrogen fertilization improved water-use efficiency of winter wheat through increasing water use during vegetative rather than grain filling.AGRICULTURAL WATER MANAGEMENT,197,41-53.
MLA	Wang, Linlin,et al."Nitrogen fertilization improved water-use efficiency of winter wheat through increasing water use during vegetative rather than grain filling".AGRICULTURAL WATER MANAGEMENT 197(2018):41-53.

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