Table 1 Physicochemical characterization of soil and rock samples from the study sites of Vellozia epidendroides and Barbacenia macrantha.

From: Microbiomes of Velloziaceae from phosphorus-impoverished soils of the campos rupestres, a biodiversity hotspot

Substrate

pH

Organic matter (g/kg)

N (mg/kg)

P (mg/kg)

K (mg/kg)

Ca (mg/kg)

Mg (mg/kg)

S (mg/kg)

Soil

3.55 (0.06)

39.90 (5.92)

900.00 (270.80)

4.15 (2.52)

34.32 (9.07)

129.00 (17.81)

14.18 (0.51)

4.10 (2.25)

Rock

4.74 (0.11)

6.67 (0.11)

60.00 (54.77)

1.21 (0.60)

47.19 (20.41)

66.53 (8.55)

8.08 (0.27)

2.36 (2.02)

  1. pH and concentrations of organic matter and macronutrients (N, P, K, Ca, Mg, and S) of soil and rock are shown. Values correspond to the means of five samples. Standard deviations are in parenthesis.
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