科研成果
  成果统计  
  获奖
  论文
  专著
  专利
  新品种
  软件著作权
  成果转化  
  成果
  案例
  动态
  · 最新动态
  · 人才招聘
  · 专题
  ·
  · 学会学报
  · 信息服务
  您现在的位置:首页 > 科研成果 > 论文
 
论文编号:
作者:
作者: Li Wang, Qiuxia Liu, Xiaoyan Dong, Yi Liu, Jianwei Lu*.
作者所在部门:
作者所在部门:
通讯作者:
通讯作者: Jianwei Lu
刊物名称:
刊物名称: Global Ecology and Conservation
论文题目:
论文题目: Herbicide and nitrogen rate effects on weed suppression, N uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.).
摘要:
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.

年: 2019
卷: 17
期:
页: e00529
收录类别:
影响因子:
论文出处:
论文出处:
外单位作者单位:
外单位作者单位:
备注:

关闭窗口