Thus, descriptive statistics indicated the size able spatial variability for all soil variables. Further understanding of the spatial structures of soil variables can be helpful for revealing their spatial distribution and achieving the reasonable site specific farming management. The geo-statistical analysis of soil variables suggested that the value nugget-sill ratio ranges from 0% (EC) to 55.22% (Av P), except for available sulfur(72.21%), indicating that internal factors were dominant over external factors. Soil EC and OM had the strong spatial dependence with a nugget-sill ratio of
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