Indicators

TN

AN

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

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

pH

AN

0.925**

.

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

0.889**

0.814**

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

0.777**

0.754**

0.774**

pH

−0.122

0.057

−0.108

-0.152

CEC

0.803**

0.818**

0.825**

0.734**

0.061