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

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

Soil variables	Model fit	Estimates of parameters			Nugget/sill ratio
Soil variables	Model fit	Nugget	Sill	Range	Nugget/sill ratio
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

ISSN: 2048-7010