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    Öğe
    Çay Tarımı Yapılan Topraklara Yönelik Faktör Analizi ve Jeoistatistik Uygulamaları: Rize İli Örneği
    (Toprak Su Dergisi, 2014) Özyazıcı, Mehmet Arif; Sağlam, Mustafa; Dengiz, Orhan; Erkoçak, Aylin
    Five factors related with physical and chemical soil properties in tea cultivated areas of Rize province were determined some physical and chemical soil properties were evaluated with factor analysis in this study. These factors explained about 75.63 % of total variables in soil properties of the area. Determined new variables were called as basic cations, microelement, texture, mineralization and fertilization. Basic cations that explained 18.31 % of total variables is the most important variable in new variables wheras, it was found that fertilizer variables is the lowest explain for total variables. Spatial distribution maps of the determined variables in the study area was prepared using geostastistic methods. Kriging maps show that the highest values of the basic cations and microelements were located in high and steep sloped lands whereas, it was found that the highest values of other factors distributed in near the coast area. Especially, high values of the fertilizer distibuted on flat-delta area showed under more human activites.
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    Öğe
    Faktör Analizi ile Minimum Veri Setinin Oluşturulması ve Haritalanması: Samsun İli Örneği
    (Ege Üniversitesi Ziraat Fakültesi Dergisi, 2014) Sağlam, Mustafa; Dengiz, Orhan; Özyazıcı, Mehmet Arif; Erkoçak, Aylin; Türkmen, Ferhat
    The main objective of this study is to create minimum data base and mapping using factor analysis. 889 soil samples were collected from Samsun province and 17 physico-chemical properties of them were evaluated. In this study, 0.5 was obtained as the lowest factor value for variables. To increase success of factor analysis, electrical conductivity, lime content, extractable calcium and extractable cupper that was not assigned to any factor as variable were not incorporated in factor analysis. After factor analysis, 5 variables were selected and these variables were called as availability of micro nutrients, texture, sedimentation, organic matter and risk of alkalinity were called. Whereas selected 5 factors explain about 72.36% of total variables belonging to physicochemical properties, availability of micro element factor explain about 20.07% that was found the highest ratio in variables of soil properties. Spatial distribution maps was prepared using kriging methods for factors. It was seen that these maps showed about strong and weak zones of factors for Samsun’ soils.