Parameters

Units

FS-ST

FS-STT

SS

pH H₂O

-

6.54 ± 0.06

6.45 ± 0.03

6.46 ± 0.01

pHKCl

-

6.40 ± 0.02

6.41 ± 0.02

6.36 ± 0.00

Conductivity

µS/cm

1762.67 ± 577.41

3308.67 ± 409.75

3165.33 ± 129.37

Salinity

‰

0.87 ± 0.31

1.73 ± 0.25

1.60 ± 0.08

N(NO₃)

mg/kg

393.47 ± 193.46

1093.23 ± 104.75

714.22 ± 51.24

N(NH₄)

mg/kg

183.90 ± 32.49

546.99 ± 107.47

242.48 ± 41.60

N(NH4)/N(NO₃)

-

0.46

0.50

0.33

Total N

%

2.80 ± 0.21

2.59 ± 0.15

2.35 ± 0.19

Total C

%

25.20 ± 1.77

23.44 ± 1.79

23.55 ± 1.72

C/N

-

9.01 ± 0.08

9.05 ± 0.24

10.05 ± 0.11

Organic C

g / kg

217.45 ± 16.43

199.41 ± 10.65

201.97 ± 15.61

Total P

P g/kg

10.95 ± 0.14

9.21 ± 0.09

10.82 ± 0.10

Available P

P g/kg

2.54 ± 0.13

1.97 ± 0.08

2.14 ± 0.13

Ca

méq%

55.15 ± 7.93

103.85 ± 5.72

100.62 ± 8.49

Mg

méq%

3.87 ± 0.70

5.15 ± 0.95

5.16 ± 0.99

Na

méq%

2.35 ± 0.21

3.23 ± 1.22

3.37 ± 1.07

K

méq%

1.34 ± 0.16

2.07 ± 0.46

1.28 ± 0.26

Cation exchange capacity

méq%

44.44 ± 2.39

36.77 ± 2.96

39.50 ± 2.39