Research Article

Using Soil Apparent Electrical Conductivity to Optimize Sampling of Soil Penetration Resistance and to Improve the Estimations of Spatial Patterns of Soil Compaction

Table 5

Correlation coefficient () between measured and estimated data by kriging and cokriging for selected variables.

Universal KrigingUniversal Cokriging

0.644 × 0.676
× 0.696

0.339 × 0.392
× 0.415