摘要
利用相关和回归分析方法，结合产量丰欠年型，对毕节地区１９５３～１９９４年玉米单产与气象因子的关系进行分析，得出了５月下旬积温、６月下旬降雨量、５月下旬日照时数及９月上旬日照时数与玉米单产最为密切，系影响玉米单产的主要气象要素。
The relationship between unit yield of maize during 1953～1994 and meteorological factors was analysed by means of correlation and regression method It was indicated that accumulated temperature on last ten days of May, rainfall on last ten days of June, sunshine hours on last ten days of May and first ten days of September related closely to the unit yield of maize, and these were also the major meteorological factors The proper cultivating technique was suggested
出处
《贵州农业科学》
CAS
1997年第4期39-41,共3页
Guizhou Agricultural Sciences
关键词
玉米
单产
气象因子
相关
回归
年成
unit yield of maize
meteorological factors
correlation
regression
