|   
  |       电导率  |       全氮  |       速效磷  |       速效钾  |       株高  |       穗数  |       百粒重  |    
|   电导率  |       1.00  |       
  |       
  |       
  |       
  |       
  |       
  |    
|   全氮  |       0.34  |       1.00  |       
  |       
  |       
  |       
  |       
  |    
|   速效磷  |       0.71  |       −0.06  |       1.00  |       
  |       
  |       
  |       
  |    
|   速效钾  |       −0.44  |       0.521  |       −0.72  |       1.00  |       
  |       
  |       
  |    
|   株高  |       −0.06  |       −0.05  |       −0.55  |       0.42  |       1.00  |       
  |       
  |    
|   穗数  |       0.67  |       −0.09  |       0.39  |       −0.19  |       0.51  |       1.00  |       
  |    
|   百粒重  |       −0.44  |       0.65  |       −0.66  |       0.89  |       0.05  |       −0.53  |       1.00  |