Essential element (mg/L)

Site

Range

SRNS

A

B

C

Nitrogen

6.56 ± 0.36

3.18 ± 0.01

7.20 ± 0.14

2.40 - 9.89

0.04 - 0.08

Phosphorous

3.74 ± 0.03

5.01 ± 0.04

2.57 ± 0.05

1.37 - 7.85

13 - 25

Calcium

19.80 ± 0.85

20.50 ± 1.06

22.04 ± 0.73

12.25 - 25.21

>3.2

Potassium

29.22 ± 0.72

28.85 ± 1.45

29.28 ± 0.91

19.04 - 31.94

>3.2

Magnesium

8.62 ± 0.44

9.07 ± 0.06

12.08 ± 0.13

6.73 - 15.08

>3.2