摘要
影响蔬菜产量的因子有很多,各种因子的影响度排序是蔬菜产量估计的难点与热点。从影响金华蔬菜产量的物理因子角度出发,选取蔬菜年播种面积、年化肥使用量、年日照时数、年降水量、年平均气温、土壤有机质年平均含量的数据作为影响因子,利用灰色关联分析,对金华市蔬菜产量影响因子关联度做出排序,结果表明:关联程度由大到小依次是:年化肥使用量、蔬菜年播种面积、土壤有机质年平均含量、年日照时数、年平均气温、年降水量。
There are various factors to influence the vegetable yield.It is difficult but important to rank the influencing degree of different factors.This article intends to begin with the physical factors influencing the vegetable yield in Jinhua,selecting vegetable annual sowing area,annual fertilizer rate,annual sunshine hours,annual precipitation,annual average temperature,annual average content of soil organic matters as influencing factors,with the help of Grey Relational Analysis（GRA）,it is going to rank the relational degree among different influencing factors that influencing vegetable yield in Jinhua,the results showed as follows： annual fertilizer ratevegetable annual sowing areaannual average content of soil organic mattersannual sunshine hoursannual average temperatureannual precipitation.
出处
《湖南农业科学》
2011年第1期40-42,46,共4页
Hunan Agricultural Sciences
关键词
蔬菜产量
影响因子
灰色关联分析
vegetable yield
influencing factor
gray relational analysis
