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    Modeling and mapping of spatial variability of soil micro nutirient elements in research and application areas of Bingol University
    (2019) Sürücü, Abdulkadir; Gökmen, Veysel; Gündoğan, Recep; Budak, Mesut
    Lack of microelements in the soil negatively affects the yields in areas where intensive plant production is performed. Studies on spatial variability of essential micronutrients in Turkey's agriculturally intensive areas were limited. The aim of this study is to determine the amount of microelement contents of soils of the research and application farm of Bingöl University under different land uses, and to model and map the distance. depended spatial variability The total area of the study field is 67 ha. The study area was divided into 100 X 100 m grids and soil samples were taken from 0-30 cm depth at the corner of from grids at 64 sites. In addition, 24 of soil samples were taken from 5, 25 and 60 m intermediate intersections in order to determine the change of soil properties at distances less than 100 m. The contents of soil extractable zinc (Zn), copper (Cu), manganese (Mn) and iron (Fe) were analyzed, and semivariograms were prepared for each micro element content, and distribution maps were generated by using kriking methods. According to obtained results, it was determined that iron (CV = 31.25%) and copper (CV = 27.38%) showed modest variability while Manganese (CV = 44.30) and Zinc (CV = 47.72) showed high variability. Spatial distributions maps for each micronutrients determined were obtained after semivariograms were formed using suitable model parameters. The distrubitons maps showed that all microelements had a important varaibility depending on the distance, especially as the microelement contents of the soil increased relatively from the south-east to the north-west directions.