Nitrogen fertilization improved water-use efficiency of winter wheat through increasing water use during vegetative rather than grain filling
文献类型：期刊论文
| 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.; Chen, Yinglong1,2; Chen, Wei6; Palta, Jairo A1,4; Wang, Linlin2,3; Deng, Xiping2 |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 出版日期 | 2018 |
| 卷号 | 197页码:41-53 |
| 关键词 | Winter Wheat Nitrogen Root Systems Water Use Water-use Efficiency |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/j.agwat.2017.11.010 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | Agronomy ; Water Resources |
| 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 |
| 源URL | [http://ir.iswc.ac.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.Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China 4.CSIRO Agr & Food, Private Bag 5, Wembley, WA 6913, 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 | Chen, YL,Deng, XP ,Chen, Yinglong,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 | Chen, YL.,Deng, XP .,Chen, Yinglong.,Chen, Wei.,Palta, Jairo A.,...&Deng, Xiping.(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 | Chen, YL,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. |
入库方式： OAI收割
来源：水土保持研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。