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Table 3 Fitted semivariogram models for soil variables and estimates of model parameters

From: Spatial prediction of soil acidity and nutrients for site-specific soil management in Bedele district, Southwestern Ethiopia

Soil variables Model fit Estimates of parameters Nugget/sill ratio
Nugget Sill Range
pH Gaussian 0.357 0.692 0.175 0.515
OC Spherical 0.052 0.179 0.128 0.289
TN Gaussian 0.003 0.006 0.121 0.500
AvP Stable 0 3.292 0.024 0
Ex. Mg Gaussian 0.039 0.057 0.015 0.684
Ex. K Spherical 0.006 0.314 0.021 0.019
Ex. Ca Gaussian 0.124 0.262 0.304 0.473
CEC Exponential 0.036 0.083 0.140 0.434