Herbicide and nitrogen rate effects on weed suppression, N uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.)
文献类型：期刊论文
| 作者 | Wang, Li3; Liu, Qiuxia1,2; Dong, Xiaoyan1,2; Liu, Yi3; Lu, Jianwei1,2 |
| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
 |
| 出版日期 | 2019 |
| 卷号 | 17页码:10 |
| 关键词 | Oilseed rape Weed control Apparent N use efficiency Yield N rate |
| ISSN号 | 2351-9894 |
| DOI | 10.1016/j.gecco.2019.e00529 |
| 英文摘要 | Improved weed management strategies are imperative in oilseed rape production. Herbicide and nitrogen (N) fertilization could be integrated into weed management as these are known to affect weed emergence and growth. In this study, two-factor designed field experiments were conducted to investigate the direct and/or interactive effects of herbicide application and N fertilization on weed suppression, crop N uptake, apparent N use efficiency (ANUE) and yield in weed infested winter oilseed rape. Oilseed rape were grown under herbicide-treated or herbicide-free conditions subjected to five N rates. The results demonstrated that herbicide exerted persistent weed suppression, and thereby improved oilseed rape growth. Increasing N supply enhanced the competition ability of oilseed rape against weeds, due to much higher sensibility to N supply. The interaction effects between herbicide and N application resulted in much greater enhancements in N uptake by oilseed rape over weeds in response to increasing N supply, when herbicide was applied. In contrast, weed N uptake in herbicide-free plots could be comparable to or even higher than that of oilseed rape, leading to significantly lower oilseed rape ANUE than in herbicide-treated plots. Oilseed rape yield increased significantly with increasing N rates, and such responses were more pronounced with herbicide application. Therefore, target yields could be fulfilled with substantially reduced N input, if herbicide was applied. In conclusion, effective use of herbicide in combination with optimum N fertilization would be a strategy to achieve weed suppression, yield increase and meanwhile to improve ANUE and reduce N input in winter oilseed rape. (C) 2019 The Authors. Published by Elsevier B.V. |
| 资助项目 | National Key Research and Development Program of China[2018YFD0200900] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000465448800040 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/7787]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Lu, Jianwei |
| 作者单位 | 1.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Hubei, Peoples R China 2.Minist Agr, Key Lab Arable Land Conservat Middle & Lower Reac, Wuhan 430070, Hubei, Peoples R China 3.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Li,Liu, Qiuxia,Dong, Xiaoyan,et al. Herbicide and nitrogen rate effects on weed suppression, N uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.)[J]. GLOBAL ECOLOGY AND CONSERVATION,2019,17:10. |
| APA | Wang, Li,Liu, Qiuxia,Dong, Xiaoyan,Liu, Yi,&Lu, Jianwei.(2019).Herbicide and nitrogen rate effects on weed suppression, N uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.).GLOBAL ECOLOGY AND CONSERVATION,17,10. |
| MLA | Wang, Li,et al."Herbicide and nitrogen rate effects on weed suppression, N uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.)".GLOBAL ECOLOGY AND CONSERVATION 17(2019):10. |
入库方式： OAI收割
来源：武汉植物园
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