摘要
应用因子分析和回归方法对春玉米高产农艺措施进行了数量分类与寻优。研究表明,在冀北春玉米产区,播期、底磷肥和密度是第一位重要共性措施,其次是底氮肥、有机肥和氮素追肥。并对每项措施做了具体分析。
The classification of cultivation measures for spring maize was studied with the principal factor analysis and regression methods. The results indicated that sowing date, basic application of P_2O_5 and density were the most important measures. Basic application of N was less important as compared with the measures mentioned above. Some aspacts about principal factor factor analysis analysis were also discussed.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
1992年第3期33-37,共5页
Journal of Hebei Agricultural University
关键词
玉米
措施
因子分析
数量分类
maize
cultivation measures
factor analysis
