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Table 10 Correlation matrices for metals in soil sample (n = 4)

From: Levels of essential and non-essential metals in ginger (Zingiber officinale) cultivated in Ethiopia

  Ca Mg Cu Zn Mn Ni Fe Co Cr Cd
Ca 1          
Mg 0.428 1         
Cu 0.445 0.996 1        
Zn 0.252 0.749 0.800 1       
Mn 0.706 0.937 0.948 0.737 1      
Ni 0.505 0.994 0.997 0.779 0.967 1     
Fe 0.461 0.987 0.997 0.839 0.953 0.995 1    
Co 0.403 0.313 0.393 0.806 0.477 0.395 0.464 1   
Cr 0.052 0.919 0.917 0.789 0.744 0.887 0.908 0.274 1  
Cd 0.282 0.942 0.910 0.512 0.808 0.905 0.875 −0.023 0.883 1