Do high nitrogen use efficiency rice cultivars reduce nitrogen losses from paddy fields?
文献类型：期刊论文
| 作者 | Chen, Gui1,2,3; Chen, Ying4; Zhao, Guohua5; Cheng, Wangda3; Guo, Shiwei6; Zhang, Hailin7; Shi, Weiming1 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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| 出版日期 | 2015-11-01 |
| 卷号 | 209页码:26-33 |
| ISSN号 | 0167-8809 |
| 关键词 | High-NUE rice cultivars N uptake N losses Environmental pollution |
| DOI | 10.1016/j.agee.2015.03.003 |
| 通讯作者 | Shi, Weiming(wmshi@issas.ac.cn) |
| 英文摘要 | Several high nitrogen use efficiency (high-NUE) rice cultivars have been developed to meet the increased food demand and urgent environmental concerns, but the effect of these cultivars on reducing N losses from paddy fields is not well documented. A two-year field experiment was conducted in the Taihu Lake region of China to evaluate the advantages of high-NUE rice on yields and N losses in 2011 and 2012. Two "high-NUE" rice cultivars and a conventional cultivar were compared at the same fertilizer N input of 200 kg N ha(-1). Ammonia (NH3) volatilization, N2O emission, N leaching and runoff losses were monitored during the entire rice growing season within a rice wheat rotation. The high-NUE rice cultivars Wuyunjing 23 (W23) and Zhendao 11 (Z11) achieved higher grain yields, and took up more N with a higher NUE than the conventional cultivar Wuyujing 3 (W3). There was a trend toward smaller N losses with the high-NUE cultivars W23 and 111 (N leaching, N2O emissions and NH3 volatilization decreased by 12-23%, 5-10% and 2-8%, respectively), but the total reductions for the growing season compared to W3 were not statistically significant. Even though the high-NUE cultivars did not significantly decrease the absolute losses of N from the field, they did show lower N losses expressed on a yield-scaled basis than the conventional cultivar due to higher grain yields. Cultivars W23 and Z11 produced 21-27% less NH3 volatilization, 23-26% less N2O emission, 23-33% less N leaching, and 13-24% less N in runoff per ton of rice grain harvested than those of W3. Another cultivar Aoyusi 386 (A386), known to have a higher N uptake at early growth stages than W23 and Z11 was also planted in 2012. This cultivar significantly reduced N losses compared with the conventional variety. It was concluded that improving N uptake rate of high-NUE cultivars in the early stages of growth would be most effective in decreasing N losses and that the main part of N fertilizer applications should be later in the growing season than is currently practiced in the region. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | AMMONIA VOLATILIZATION LOSSES ; WHEAT ROTATION SYSTEM ; OXIDE EMISSIONS ; METHANE EMISSION ; LOWLAND RICE ; NUTRIENT MANAGEMENT ; CROPPING SYSTEMS ; CHINA ; PLANTS ; YIELD |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| WOS类目 | Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000358463000004 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558344 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Shi, Weiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Grad Sch, Being 100081, Peoples R China 3.Jiaxing Acad Agr Sci, Dev Agr Ecol Environm, Jiaxing 314016, Peoples R China 4.Nanjing Forestry Univ, Coll Forest Resources & Environm, Nanjing 210037, Jiangsu, Peoples R China 5.Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China 6.Jiangsu Acad Agr Sci, Inst Food Crops, Jiangsu High Qual Rice R&D Ctr, Nanjing 210014, Jiangsu, Peoples R China 7.Oklahoma State Univ, Dept Plant & Soil Sci, Stillwater, OK 74078 USA |
| 推荐引用方式 GB/T 7714 | Chen, Gui,Chen, Ying,Zhao, Guohua,et al. Do high nitrogen use efficiency rice cultivars reduce nitrogen losses from paddy fields?[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2015,209:26-33. |
| APA | Chen, Gui.,Chen, Ying.,Zhao, Guohua.,Cheng, Wangda.,Guo, Shiwei.,...&Shi, Weiming.(2015).Do high nitrogen use efficiency rice cultivars reduce nitrogen losses from paddy fields?.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,209,26-33. |
| MLA | Chen, Gui,et al."Do high nitrogen use efficiency rice cultivars reduce nitrogen losses from paddy fields?".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 209(2015):26-33. |
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来源：南京土壤研究所
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