摘要
以陕西省周至县为研究区,探讨了基于土壤养分空间数据的玉米估产模型的建立及应用。对研究区土壤养分点数据进行空间插值,获得了区内9种养分的分布数据,运用SPSS软件对养分含量与玉米产量进行主成分分析,建立玉米产量估算模型。
With Zhouzhi County in Shaanxi Province as the studied area,the establishment and application of maize yield estimation models based on spatial data of soil nutrients was studied. The distribution data of 9 nutrients in the area were obtained through spatial interpolating of points data of soil nutrient in the studied area. The principal component analysis of nutrient content and maize yield were conducted with SPSS software and then the maize yield estimation model was established.
出处
《安徽农业科学》
CAS
北大核心
2010年第13期6790-6791,共2页
Journal of Anhui Agricultural Sciences
关键词
估产模型
插值
土壤养分
Yield estimation model
Interpolation
Soil nutrients
