Agriculture Reference
In-Depth Information
TABLE 8.3
Selected Soil Chemical Properties after Harvest of Three Dry Bean Crops
at Two Soil Depths as Influenced by Liming Treatments
Lime Rate (Mg ha
−
1
)
Soil Property
0
12
24
F-Test
CV (%)
0-10 cm Soil Depth
pH
5.5c
6.5b
7.0a
*
2
Base saturation (%)
32.6a
73.1b
85.6c
*
8
H + Al (cmol
c
kg
−1
)
6.2a
2.1b
1.1c
*
12
Acidity saturation (%)
67.6a
26.9b
14.4c
*
14
2.1c
4.2b
4.9a
*
12
Ca (cmol
c
kg
−1
)
0.6b
1.4a
1.4a
*
12
Mg (cmol
c
kg
−1
)
9.3a
8.1b
7.6b
*
7
CEC (cmol
c
kg
−1
)
19.9
19.8
19.9
NS
1
Organic matter (g kg
−1
)
0-20 cm Soil Depth
pH
5.3c
6.1b
6.5a
*
3
Base saturation (%)
24.2c
51.3b
66.0a
*
10
H + Al (cmol
c
kg
−1
)
6.8a
4.1b
2.8c
*
8
Acidity saturation (%)
75.8a
48.7a
33.9c
*
9
1.6c
3.1b
3.9a
*
15
Ca (cmol
c
kg
−1
)
0.4c
1.1b
1.2a
*
15
Mg (cmol
c
kg
−1
)
8.9a
8.4b
8.1b
*
7
CEC (cmol
c
kg
−1
)
17.9
17.7
18.0
NS
13
Organic matter (g kg
−1
)
Source:
Adapted from Fageria, N. K., V. C. Baligar, and R. W. Zobel. 2007.
Commun. Soil Sci. Plant Anal
.
38:1637-1653.
*, NS: Significant at the 1% probability level and not significant, respectively.
4000
3000
Y = 2094.3640 + 182.3811X - 7.2214X
2
2000
R
2
= 0.8627**
1000
0
0
3
6
12
18
Lime rate (Mg ha
-1
)
FIGURE 8.7
Response of soybean to liming grown on a Brazilian Oxisol.
