摘要
采用灰色关联度的方法,研究了吉林省不同生态区气象因子对玉米产量的影响。结果表明:在中部地区,日照时数和积温与玉米产量的关联度最为密切;在东部地区,玉米抽雄吐丝后的积温和日照时数与玉米产量的关联度最为密切;在西部地区,降水与玉米产量的关联度最为密切。在中东部地区,积温增加会带来产量的增加,而在西部地区,积温增加产量反而减少。因此,在生产上,应合理选用品种,并采取相应的栽培技术措施,以便充分利用自然资源。
The grey correlation degree method was applied to study effects of climatic factors on maize yield in different ecological regions of Jilin Province. The results showed that the correlation degree of sunshine hours and accumulated temperature with maize yield was the closest in central region. The correlation degree of accumulated temperature and sunshine hours after anthesis and silking stage with maize yield was the closest in eastern region.The correlation degree of precipitation with maize yield was the closest in western region. Maize yield would in-crease with the increase of accumulated temperature in mid and eastern area, but it would decrease with the in-crease of accumulated temperature in western area. So, reasonable varieties should be selected and corresponding cultivation technology adopted to fully use natural resource.
出处
《吉林农业科学》
2015年第4期17-20,共4页
Journal of Jilin Agricultural Sciences
基金
"十二五"粮食丰产科技工程(2012BAD04B02)
吉林省科技厅青年科研基金项目(201201089)
关键词
不同生态区
气象因子
玉米产量
影响
评价
Different ecological regions
Climatic factors
Maize yield
Effect
Evaluation
作者简介
梁煊赫（1980-），女，助理研究员，主要从事农产品质量安全工作。
通讯作者：曹铁华，男，博士，副研究员，E—mail：caotiehua2002@163．com
