EC

${\text{NO}}_3^{-}$

Na⁺

${\text{NH}}_4^{+}$

${\text{PO}}_4^{3-}$

${\text{NO}}_2^{-}$

EC

1

${\text{NO}}_3^{-}$

0.79*

1

Na⁺

0.98*

0.81*

1

${\text{NH}}_4^{+}$

0.90*

-

-

1

${\text{PO}}_4^{3-}$

-

−0.63*

−0.74*

-

1

${\text{NO}}_2^{-}$

-

-

-

−0.91*

1