Brazilian Cerrado Soil Actinobacteria Ecology

Table 3

Chemical and physical characteristics of the Brazilian Cerrado soil samples.

Sample and Season			pH	P (mg/dm^3)	K (mg/dm^3)	Mg (mg/dm^3)	Al (mg/dm^3)	H + Al (Cmol/dm^3)	OM (dag/Kg)	SB (mg/dm^3)	Texture
PA	Rainy	Point 1	5.3 ± 0.1^a	1.5 ± 0.1^a	25 ± 1^a	0.1 ± 0.0^a	0.6 ± 0.1^a	3.6 ± 0.1^a	1.4 ± 0.1^a	0.3 ± 0.1^a	Sandy loam
		Point 2	5.4 ± 0.1^a	1.5 ± 0.1^a	56 ± 2^a	0.1 ± 0.0^a	0.6 ± 0.1^a	4.5 ± 0.1^a	2.0 ± 0.1^a	0.4 ± 0.1^a	Medium loam
		Point 3	5.5 ± 0.1^a	1.2 ± 0.1^a	33 ± 1^a	0.2 ± 0.0^a	0.4 ± 0.1^a	2.6 ± 0.1^a	1.1 ± 0.1^a	0.3 ± 0.1^a	Medium loam
		Point 4	5.5 ± 0.1^a	1.0 ± 0.1^a	70 ± 1^b	0.1 ± 0.0^a	0.5 ± 0.1^a	3.6 ± 0.1^a	1.5 ± 0.1^a	0.5 ± 0.1^a	Medium loam
		Point 5	5.4 ± 0.1^a	0.7 ± 0.1^a	9 ± 1^b	0.1 ± 0.0^a	0.1 ± 0.1^a	1.7 ± 0.1^a	0.4 ± 0.1^b	0.2 ± 0.1^a	Medium loam
LU	Rainy	Point 6	5.4 ± 0.1^a	1.2 ± 0.1^a	28 ± 1^a	0.2 ± 0.0^a	0.5 ± 0.1^a	7.9 ± 0.1^a	3.4 ± 0.1^a	0.3 ± 0.1^a	Clay loam
		Point 7	5.0 ± 0.1^a	1.5 ± 0.1^a	20 ± 1^a	0.1 ± 0.0^a	0.5 ± 0.1^a	7.9 ± 0.1^a	2.6 ± 0.1^a	0.3 ± 0.1^a	Clay loam
		Point 8	5.1 ± 0.1^a	1.2 ± 0.1^a	11 ± 1^b	0.2 ± 0.0^a	0.3 ± 0.1^a	2.6 ± 0.1^a	1.1 ± 0.1^a	0.2 ± 0.1^a	Sandy loam
		Point 9	5.2 ± 0.1^a	2.0 ± 0.1^a	20 ± 1^a	0.1 ± 0.0^a	0.9 ± 0.2^a	7.0 ± 0.1^a	2.4 ± 0.1^a	0.3 ± 0.1^a	Medium loam
		Point 10	5.1 ± 0.1^a	1.5 ± 0.1^a	34 ± 1^a	0.1 ± 0.0^a	0.8 ± 0.1^a	8.8 ± 0.3^b	2.7 ± 0.1^a	0.3 ± 0.1^a	Clay loam
AC	Rainy	Point 11	5.0 ± 0.1^a	1.2 ± 0.1^a	48 ± 1^a	0.1 ± 0.0^a	0.6 ± 0.1^a	4.0 ± 0.1^a	1.6 ± 0.1^a	0.7 ± 0.1^a	Clay loam
		Point 12	4.6 ± 0.1^a	0.7 ± 0.1^a	39 ± 1^a	0.1 ± 0.0^a	1.0 ± 0.1^a	6.3 ± 0.1^a	2.0 ± 0.1^a	0.3 ± 0.1^a	Clay loam
		Point 13	4.1 ± 0.1^a	1.8 ± 0.1^a	27 ± 1^a	0.3 ± 0.0^a	2.1 ± 0.1^b	15.3 ± 1^b	3.4 ± 0.1^a	0.3 ± 0.1^a	Clay loam
		Point 14	4.1 ± 0.1^a	1.8 ± 0.1^a	33 ± 1^a	0.1 ± 0.0^a	2.4 ± 0.1^b	17.1 ± 2^b	4.0 ± 0.1^a	0.3 ± 0.1^a	Clay loam
		Point 15	5.0 ± 0.1^a	1.8 ± 0.1^a	69 ± 2^b	0.1 ± 0.0^a	1.8 ± 0.1^b	12.3 ± 1^b	2.7 ± 0.1^a	0.4 ± 0.1^a	Clay loam
PA	Dry	Point 1	4.7 ± 0.1^a	1.7 ± 0.1^a	113.8 ± 1^b	0.1 ± 0.0^a	0.2 ± 0.1^a	13.7 ± 0.1^b	3.9 ± 0.1^a	0.5 ± 0.1^a	Sandy loam
		Point 2	5.1 ± 0.1^a	1.7 ± 0.1^a	88.9 ± 1^b	0.1 ± 0.0^a	0.4 ± 0.1^a	5.6 ± 0.1^a	2.4 ± 0.1^a	0.7 ± 0.1^a	Medium loam
		Point 3	5.1 ± 0.1^a	1.4 ± 0.1^a	137.28 ± 1^b	0.1 ± 0.0^a	0.4 ± 0.1^a	4.5 ± 0.1^a	2.2 ± 0.1^a	0.8 ± 0.1^a	Medium loam
		Point 4	5.1 ± 0.1^a	1.7 ± 0.1^a	117 ± 1^b	0.1 ± 0.0^a	0.5 ± 0.1^a	5.0 ± 0.1^a	1.9 ± 0.1^a	0.9 ± 0.1^a	Medium loam
		Point 5	5.2 ± 0.1^a	1.4 ± 0.1^a	54 ± 1^b	0.1 ± 0.0^a	0.2 ± 0.1^a	4.5 ± 0.1^a	1.7 ± 0.1^a	0.4 ± 0.1^a	Medium loam
LU	Dry	Point 6	5.1 ± 0.1^a	2.5 ± 0.1^a	37.4 ± 1^a	0.1 ± 0.0^a	0.6 ± 0.1^a	6.3 ± 0.1^a	2.2 ± 0.1^a	0.1 ± 0.1^a	Clay loam
		Point 7	5.1 ± 0.1^a	0.9 ± 0.1^a	37.4 ± 1^a	0.1 ± 0.0^a	1.5 ± 0.1^b	7.0 ± 0.1^a	2.8 ± 0.1^a	0.2 ± 0.1^a	Clay loam
		Point 8	5.2 ± 0.1^a	0.9 ± 0.1^a	39 ± 1^a	0.1 ± 0.0^a	0.7 ± 0.1^a	7.8 ± 0.1^a	2.8 ± 0.1^a	0.2 ± 0.1^a	Sandy loam
		Point 9	5 ± 0.1^a	1.2 ± 0.1^a	46 ± 1^a	0.1 ± 0.0^a	1.5 ± 0.1^b	10.9 ± 0.1^b	3.0 ± 0.1^a	0.3 ± 0.1^a	Medium loam
		Point 10	5 ± 0.1^a	1.2 ± 0.1^a	67 ± 1^b	0.1 ± 0.0^a	1.4 ± 0.1^b	9.88 ± 0.1^b	3.1 ± 0.1^a	0.3 ± 0.1^a	Clay loam
AC	Dry	Point 11	4.7 ± 0.1^a	2.0 ± 0.1^a	149.7 ± 1^b	0.1 ± 0.0^a	0.4 ± 0.1^a	8.7 ± 0.1^a	2.4 ± 0.1^a	1.3 ± 0.1^a	Clay loam
		Point 12	4.8 ± 0.1^a	1.4 ± 0.1^a	48.3 ± 1^a	0.6 ± 0.0^a	0.1 ± 0.1^a	7.0 ± 0.1^a	1.8 ± 0.1^a	0.2 ± 0.1^a	Clay loam
		Point 13	4.3 ± 0.1^a	1.4 ± 0.1^a	54.6 ± 1^a	0.1 ± 0.0^a	0.1 ± 0.1^a	15.3 ± 1^b	2.8 ± 0.1^a	0.3 ± 0.1^a	Clay loam
		Point 14	4.2 ± 0.1^a	1.7 ± 0.1^a	39.0 ± 1^a	0.1 ± 0.0^a	0.1 ± 0.1^a	17.1 ± 1^b	3.0 ± 0.1^a	0.2 ± 0.1^a	Clay loam
		Point 15	4.8 ± 0.1^a	1.2 ± 0.1^a	84.2 ± 2^b	0.1 ± 0.0^a	0.1 ± 0.1^a	10.9 ± 1^b	1.9 ± 0.1^a	0.4 ± 0.1^a	Clay loam

Data are average values of duplicate ± standard deviation. Different letters indicate significant differences (𝑃<0.05). Soil classification in sandy (content clay <15), Medium (content clay between 15 and 35), and clay (content clay ≥35). Abbreviations: PA: Passos; LU: Luminárias; AC: Arcos. K: potassium; P: phosphorus; Al: aluminum; Ca: calcium; Mg: magnesium; H + Al: hydrogen + aluminum; OM: organic matter; SB: (exchangeable bases) the sum of Ca, Mg, Na, and K.