Table 1 Chemical analysis of the soil in the 0–20 cm deep layer.

From: Biometric and physiological responses of Virola Surinamensis to cadmium and biochar in amazonian soil

Depth

d

pH

OM

P

K+

Ca + Mg

Ca2+

Al3+

H+ + Al3+

SB

CEC (pH7)

V*

m**

-

g cm−3

CaCl2

g kg−1

mg dm−3

mmolc dm−3

%

0–20

2.65

3.5

29

6

0.6

6

4

18

133

7

140

5

72

  1. pH = hydrogen potential; d = density; OM = organical matter; P = phosphorus; K = potassium; Ca = calcium; Mg = magnesium; Al = aluminum; H = hydrogen; CEC = cátion exchange capacity; SB = sum of bases; V* = base saturation, m** = aluminum saturation.
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