| 用多元统计分析方法确定土壤肥力等级 |
| |
| 引用本文： | 刘长文,丁世飞,苏秀荣.用多元统计分析方法确定土壤肥力等级[J].山东农业大学学报(自然科学版),2001,32(4):471-474. |
| |
| 作者姓名： | 刘长文 丁世飞 苏秀荣 |
| |
| 作者单位： | 山东农业大学理学院, |
| |
| 摘 要： | 应用多元统计分析方法，选择有机质、碱解氮、速效磷及速效钾含量为参评因素，对12套土壤养分和粮食产量数据进行了分析。分析结果表明，用多元统计分析方法可以确定土壤肥力等级，历史符合率在80％以上，为土壤肥力等级的划分提供了一种新的研究方法。
|
| 关 键 词： | 多元统计分析 数学模型 土壤肥力 等级 土壤养分 粮食产量 |
| 文章编号： | 1000-2324(2001)04-0471-04 |
| 修稿时间： | 2000年11月12 |
A METHOD OF MULTIVARIATE STATISTICAL ANALYSIS FOR DETERMINING GRADES OF THE SOIL FERTILITY |
| |
| LIU Chang-wen,DING Shi-fei,SU Xiu-rong.A METHOD OF MULTIVARIATE STATISTICAL ANALYSIS FOR DETERMINING GRADES OF THE SOIL FERTILITY[J].Journal of Shandong Agricultural University,2001,32(4):471-474. |
| |
| Authors: | LIU Chang-wen DING Shi-fei SU Xiu-rong |
| |
| Abstract: | By a method of multivariate statistical analysis,the content of organic matter,alkali-hydrolyzadle nitrogen,rapidly available phosphate,rapidly available potassium were used as the identification factors,and datas of soil nutrient and grain output were analysed.The results of the analysis has indicated that multivariate statistical analysis can determine grades of the soil fertility.The fitting rate was over 80%,and that accuracy of forecast was right.This new method may be tried for determining grades of the soil fertility. |
| |
| Keywords: | multivariate statistical analysis mathematical model grades of the soil fertility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
