Skip to main content

Table 2 Soil chemical proprieties at the 0–10 cm layer in an Oxisol under native vegetation of Cerrado (Native) or cropped with soybean/corn under no-tillage (NT) or conventional tillage (CT) systems

From: Shifts in taxonomic and functional microbial diversity with agriculture: How fragile is the Brazilian Cerrado?

Chemical

Treatment

Al – exchangeable (titrimetry)

Ca (atomic absorption)

H + Al - Acidity (titrimetry)

K (flame photometer)

Organic matter (OM) (Walkley & Black)

Mg (atomic absorption)

pH in water

P (Mehlich1 - spectrophotometry)

 

me/100 cc

me/100 cc

me/100 cc

mg/L

%

me/100 cc

pH

mg/L

NT

0.007 B

2.847 A

5.745 B

46.667 A

3.209 AB

0.978 A

5.670 A

26.563 A

CT

0.014 B

1.545 B

4.717 C

30.000 B

2.751 B

0.556 B

5.647 A

10.417 B

Native

0.682 A

0.093 C

8.432 A

44.667 A

3.667 A

0.142 C

4.687 B

0.180 C

p

0.0000

0.000

0.0003

0.0118

0.0262

0.0001

0.0001

0.0008

CV%

12.68

9.39

4.94

9.61

7.68

9.31

1.20

22.37

  1. Values in columns sharing the same letter do not differ significantly (p < 0.05) as determined by the Tukey’s test