因子分析法在上海园林土壤肥力因素划分上的应用  

APPLICATION OF FACTOR ANALYSIS TO SHANGHAI GARDENS SOIL FERTILITY ANALYSIS

作　　者：陈国霞[1] 王波[1] 黄安建 

机构地区：[1]上海市园林科学研究所,上海200232 [2]上海冶金专科学校,上海200233

出　　处：《上海农业学报》1991年第4期61-64,共4页Acta Agriculturae Shanghai

摘　　要：调查了上海近50个公园和街道绿地的土壤性状,运用电子计算机对其中309个土样的12个肥力指标进行了因子分析,结果表明:土壤容重、三相比、有机质、水解氮、pH、EC 等对土壤肥力影响较大。改良土壤孔性和结构性,降低 pH,增施有机肥和氮肥是目前应采取的主要措施。The soil fertitity of Shanghai gardens was investigated.Factor analyses on 12 fertility indexes of 309 tilth top soil(0—30 cm)samples were made by electronic computer.The results showed that volume weight,three-phase ratio,organic matter, hydrolysable N,pH,EC were primary factors of soil fertility.The rapidly available P and K in each soil sample were too much different.Improving soil porosity,decreasing soil pH and applying organic manure and nitrogen ferilizer are main essential measures.

关 键 词：园林 土壤 肥力 因子分析 

分 类 号：S158[农业科学—土壤学]