摘要
2014—2015年在山西省农业科学院谷子研究所试验田选用长治地区具有代表性的玉米品种诚信6号进行分期播种。采用方差分析、相关分析和灰色关联度分析法研究长治地区不同播期玉米生育进程和气象条件变化,研究了播期和气象因子对玉米产量的影响。结果表明,气象因子对玉米产量的影响由高到低依次为日均气温、日照时数、降雨量,而平均气温和日照时数也是影响玉米生育进程的主要气象因子,生育进程与降雨量呈负相关,但差异不显著。2014—2015年长治地区降雨比较充足,对玉米生育进程影响不大;生产上,长治地区春播玉米4月25日—5月10日播种,可增加日照时数和平均气温,适当缩短玉米后期脱水时间,从而为玉米实现籽粒直收创造条件。
Representative maize varieties Chengxin 6 in Changzhi area was selected as test material for stage sowing in the field of Millet Institute,Shanxi Academy of Agricultural Sciences from 2014 to 2015.Using analysis of variance,correlation analysis and grey correlation analysis method to study maize development process and meteorological conditions change of different sowing dates in Changzhi Area.Effects of sowing date and meteorological factors on maize yield were researched.Results showed that the influence degrees of meteorological factors on maize yield were in the order of daily average temperature,sunshine time,rainfall.The average temperature and sunshine time were also the main meteorological factors affecting the process of maize growth.Reproductive process showed negative correlation with rainfall,but they showed no significant differences.Changzhi Area had adequate rainfall in 2014-2015,which had little impacts on the growth process of maize.In terms of production,maize of spring sowing in Changzhi Area was sown from April 25 to May 10.Sunshine duration and average temperature could be increased,dehydration time in later stage of maize could be shortened suitably,which created conditions for direct grain harvest of maize.
作者
李齐霞
李中青
李洪
祁丽婷
王敏
王瑞
孙万荣
李红梅
LI Qi-xia;LI Zhong-qing;LI Hong(Millet Research Institute,Shanxi Academy of Agricultural Sciences,Changzhi,Shanxi 046000)
出处
《安徽农业科学》
CAS
2019年第23期26-29,共4页
Journal of Anhui Agricultural Sciences
基金
山西省农业科学院生物育种工程项目(17yzgc021)
国家玉米产业技术体系建设专项长治试验站(CARS-02-52)
关键词
播期
气象因子
玉米
产量
Sowing date
Meteorological factor
Maize
Yield
