Table 4: Correlation coefficient calculated for the effect of amendments on soil properties.

Amendment

OM

P

Mg

K

Cd

Ni

CDW1

0.951

-0.956

0.784

-0.989

-0.974

-1.000

 

 

 

 

 

 

 

CDW2

0.732

0.971

-0.433

0.680

0.998*

-1.000

 

 

 

 

 

 

 

CDW3

0.741

0.931

0.959

0.965

0.922

1.000

 

 

 

 

 

 

 

WCW1

0.564

0.803

-0.774

0.674

0.882

1.000

 

 

 

 

 

 

 

WCW2

0.639

0.976

0.920

0.919

-0.976

1.000

 

 

 

 

 

 

 

WCW3

0.781

0.980

0.124

-0.163

0.883

-1.000

 

 

 

 

 

 

 

WCDW1

0.809

0.902

-0.999*

0.952

0.996*

-0.998*

 

 

 

 

 

 

 

WCDW2

0.971

0.947

-0.656

-0.942

0.644

0.869

 

 

 

 

 

 

 

WCDW3

0.794

-0.988

1.000*

-0.168

-0.046

-0.930

*Correlation is significant at p < 0.05; **Correlation is significant at p < 0.01