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Table 2 Pearson correlation matrix among soil fertility parameters

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

Variables Clay Silt Sand pH EA OC TN P CEC Ex. Ca Ex. Mg Ex. K
Clay             
Silt 0.01            
Sand − 0.92 − 0.40           
pH 0.21 0.31 − 0.32          
EA − 0.03 − 0.21 0.11 − 0.68         
OC 0.19 0.11 − 0.22 0.02 0.17        
TN 0.19 0.11 − 0.22 0.02 0.17 0.99       
P − 0.14 0.30 0.01 0.57 -0.31 − 0.01 − 0.01      
CEC 0.23 0.30 − 0.32 0.26 − 0.07 0.12 0.12 0.25     
Ex. Ca 0.28 0.34 − 0.39 0.58 − 0.48 0.02 0.02 0.32 0.71    
Ex. Mg − 0.09 -0.13 0.13 − 0.06 0.12 − 0.08 − 0.07 0.02 0.21 0.23   
Ex. K 0.01 0.08 − 0.04 0.39 − 0.45 0.11 0.11 0.35 0.10 0.14 − 0.09  
Ex. Na − 0.04 0.13 − 0.02 0.26 − 0.15 0.04 0.04 − 0.01 0.14 0.31 0.04 − 0.07
  1. Values in bold are significantly correlated at significance level < 0.05