论文题目: Responses of yield and water use efficiency to irrigation amount decided by pan evaporation for winter wheat
论文编号:
作者: Xiuwei Liu(刘秀位), Liwei Shao(邵立威), Hongyong Sun(孙宏勇), Suying Chen(陈素英), Xiying Zhang(张喜英)
刊物名称: Agricultural Water Management
卷期页码: , Volume 129, November 2013, Pages 173–180,
发表年度: 2013
DOI: http://dx.doi.org/10.1016/j.agwat.2013.08.002
摘要:
In the North China Plain (NCP), the yield production of winter wheat (Triticum aestivumL.) plays an important role in food security for the nation. Irrigation is the key to boosting the crop yield. Although many irrigation strategies have been established, simple and easy methods are still required to guide local farmers to irrigation applications. The current study was intended to evaluate winter wheat performance under different irrigation amounts as determined by the difference between pan evaporation (Ep, type of E601) and rainfall multiplied by different coefficients from 0.5 up to 1.5 in increments of 0.25. The study was carried out during 2008–2012, four growing seasons of winter wheat. The results showed that the treatment with coefficient 1.25 produced the maximum yield in three out of the four seasons, and water use efficiency (WUE) was generally decreased with the increase in irrigation amount. Seasonal weather conditions had substantial effects on winter wheat responses to irrigation. A quadratic relationship was found between crop evapotranspiration (ET) and crop yield. The crop response factor (Ky) was related to relative ET and sometime negativeKywas got which indicated the negative effects of full irrigation on the yield of winter wheat under the specific climatic condition of NCP. Drainage from the root zone was increased with the increase in the irrigation amount during rainy seasons. The optimized irrigation per application could be determined using a coefficient of 1.25 for winter wheat for maximum yield. The coefficient could be further reduced for WUE improvement and for reducing nitrate leaching.
删除或更新信息,请邮件至freekaoyan#163.com(#换成@)
Responses of yield and water use efficiency to irrigation amount decided by pan evaporation for wint
农业资源研究中心 辅仁网/2017-07-23
相关话题/论文 页码 刊物 题目 摘要
栾城站博士生张玉翠获CERN青年优秀学术论文奖_农业资源研究中心
中国生态系统研究网络(CERN)第十九次工作会议日前在北京举行,会上评选出了CERN2011年度“十佳”青年优秀学术论文,并对获奖作者进行了表彰,颁发了荣誉证书和奖金。栾城农业生态试验站沈彦俊研究员指导的博士生张玉翠发表在Journal of Hydrology上的“Evapotranspirati ...农业资源研究中心 农业资源研究中心 辅仁网 2017-07-23我校在河北省学校体育卫生科研论文评选中获奖_河北传媒学院
日前,河北省教育厅发出通知,公布了河北省第十九届学校体育卫生科研论文获奖名单,我校荣获优秀组织奖,由艺术体育学院副院长程会娜报送的《民办高校体育工作开展探索研究以河北传媒学院为例》和《高校校园足球开展的实践研究以河北传媒学院为例》获得二等奖,并 ...河北传媒学院 河北传媒学院 辅仁网 2017-07-20我校与中国艺术研究院联合培养的首届博士研究生顺利通过论文答辩_河北传媒学院
5月17日,由河北传媒学院校长李锦云教授具体指导的首届博士研究生学位论文答辩会在中国艺术研究院举行,答辩委员会主席由中国艺术研究院副院长贾磊磊教授担任,答辩委员会由中国艺术研究院高小健教授、秦喜清教授和中国传媒大学李兴国教授、梁明教授组成。 河北传媒学院与中国艺术研究院于2013年开始联合招收培养 ...河北传媒学院 河北传媒学院 辅仁网 2017-07-20我校在河北省第十九届学校体育卫生科研论文评选中获奖_河北金融学院
日前,河北省教育厅下发通知,公布了河北省第十九届学校体育卫生科研论文获奖名单。我校体育教学部教师任芳报送的《多元智能理论与健美操教学及评价》、赵建新老师报送的《以赛代考的普通高校体育教学改革研究--以河北金融学院为例》和李航老师报送的《雾霾天气下全民的危害及应对策略》均获得三等奖。同时,我校荣获优秀 ...河北金融学院 河北金融学院 辅仁网 2017-07-19我校硕士论文入选河北省2014-2015年度优秀硕士论文_河北金融学院
近日,河北省政府学位委员会、河北省教育厅联合下发了《关于批准2014-2015学年度河北省优秀博士、硕士学位论文的通知》(冀学位[2016]16号),我校2013级金融硕士苏玉坤撰写、韩景旺教授指导的《华夏银行“学生e家”手机银行设计方案》成功入选优秀硕士学位论文。近年来,学校在研究生培养工作中以创 ...河北金融学院 河北金融学院 辅仁网 2017-07-19