摘要
为了指导黔南州核桃园土壤管理与合理施肥,应用SPSS统计分析软件对黔南州的核桃优株立地土壤养分因子进行了相关分析和主成分分析。结果表明:土壤养分各指标间存在明显的相关关系;由主成分分析提取出的3个主成分可全面概括9个土壤养分指标;土壤养分指标综合得分最高的是罗甸-2号核桃。黔南州核桃优株间立地土壤养分状况存在明显差异。
In order to guide soil management and rational fertilization of walnut orchard in Qiannan State of Guizhou Province,the correlation and principal component analysis of soil nutrient factors were conducted by SPSS statistical analysis software.The results were as follows.There were obvious correlations between soil nutrient indexes.The nine soil nutrient indexes could be comprehensively summarized by 3 principal components extracted by principal component analysis.The comprehensive score of soil nutrient index of walnut variety Luodian No.2 was the highest.There were obvious differences in soil nutrient status between walnut individuals originated in Qiannan State.
出处
《山东农业科学》
2014年第11期75-78,共4页
Shandong Agricultural Sciences
基金
黔南州核桃高效栽培技术集成与示范研究[黔南科合农字(2012)4号]
关键词
核桃
土壤养分
相关分析
主成分分析
Juglans sigillata
Soil nutrient
Correlation analysis
Principal component analysis
