pH

(CaCl₂)

H + Al

K

Ca + Mg

P

mg∙dm⁻³

C

g∙dm⁻³

SB^a

cmol_c∙dm⁻³

BS^b

%

Granulometry

Bradyrhizobium^c

CFU g⁻¹ soil

Diazotrophic^d

CFU g⁻¹ soil

cmol_c∙dm⁻³

clay

silt

sand

5.35

5.8

0.43

5.62

7.77

21.68

6.05

59.11

71.0

8.2

20.8

1.79 × 10⁴

9.0 × 10⁶