Table 11: Chemical characteristics of soils of upland soils in Kogi East.
|
Pedon/coordinate |
Location |
Depth |
Horizon |
pH |
OC |
TN |
C:N |
Av. P |
Exchangeable cations |
|||||||||||||||
|
|
|
|
|
|
|
|
|
Ca2+ |
Mg2+ |
K+ |
Na+ |
H+ |
Al3+ |
|||||||||||
|
|
|
(cm) |
|
(H2O) |
(KCl) |
(g kg-1) |
|
(mg kg-1) |
(cmolc kg-1) |
|||||||||||||||
|
22a1 |
Anyigba |
0 - 19 |
Ap1 |
5.8 |
5.0 |
11.30 |
1.70 |
7 |
0.93 |
2.00 |
2.00 |
0.07 |
0.04 |
0.60 |
0.20 |
|||||||||
|
07 o28’17.4” N |
|
19 - 58 |
Ap2 |
6.3 |
5.3 |
3.40 |
1.10 |
3 |
2.80 |
1.80 |
0.20 |
0.02 |
0.01 |
1.20 |
0.20 |
|||||||||
|
007 o09’55.8” E |
|
58 - 102 |
AB |
6.3 |
5.3 |
5.50 |
0.70 |
8 |
0.93 |
2.20 |
1.00 |
0.03 |
0.02 |
0.60 |
0.40 |
|||||||||
|
|
|
102 - 151 |
Btv1 |
6.0 |
5.0 |
3.40 |
0.60 |
6 |
0.93 |
2.20 |
0.20 |
0.02 |
0.02 |
0.40 |
0.40 |
|||||||||
|
|
|
151 - 208
|
Btv2 |
5.7 |
5.1 |
3.50 |
0.30 |
12 |
0.93 |
4.40 |
2.40 |
0.02 |
0.01 |
0.60 |
0.20 |
|||||||||
|
22a2 |
Okabo |
0 - 15 |
Ap1 |
5.8 |
5.0 |
9.20 |
0.90 |
10 |
0.93 |
2.00 |
1.20 |
0.05 |
0.03 |
0.80 |
0.20 |
|||||||||
|
07 o33’ 17.0” N |
|
15 - 34 |
Ap2 |
5.9 |
4.8 |
3.80 |
0.60 |
6 |
6.53 |
1.00 |
1.60 |
0.03 |
0.02 |
0.60 |
0.20 |
|||||||||
|
007 o12’06.9” E |
|
34 - 74 |
AB |
5.1 |
4.0 |
3.80 |
0.30 |
13 |
0.93 |
1.00 |
0.60 |
0.03 |
0.02 |
0.80 |
0.40 |
|||||||||
|
|
|
74 - 132 |
Btv1 |
5.2 |
4.0 |
3.80 |
0.40 |
10 |
1.87 |
1.20 |
0.40 |
0.03 |
0.02 |
1.00 |
0.60 |
|||||||||
|
|
|
132 - 170 |
Btv2 |
5.6 |
4.1 |
1.30 |
0.30 |
4 |
1.87 |
0.60 |
1.00 |
0.07 |
0.04 |
1.00 |
0.40 |
|||||||||
|
|
|
170 - 200
|
Btv3 |
5.6 |
4.1 |
5.00 |
0.30 |
17 |
1.87 |
0.60 |
0.80 |
0.02 |
0.02 |
0.20 |
0.60 |
|||||||||
|
22a3 |
Ologba |
0 - 19 |
Ap |
5.4 |
4.7 |
16.40 |
1.10 |
15 |
0.93 |
4.40 |
1.60 |
0.09 |
0.04 |
0.20 |
0.40 |
|||||||||
|
07 o37’25.2” N |
|
19 - 42 |
Btv |
5.6 |
4.9 |
4.20 |
0.60 |
7 |
3.73 |
2.00 |
1.80 |
0.03 |
0.02 |
1.00 |
0.60 |
|||||||||
|
007 o13’15.0” E |
|
42 - 65
|
Btvx |
5.8 |
4.6 |
5.50 |
0.90 |
6 |
1.87 |
2.20 |
0.80 |
0.03 |
0.02 |
0.60 |
0.20 |
|||||||||
|
22a4 |
Abejukolo-Egume |
0 - 20 |
Ap |
4.7 |
3.8 |
8.40 |
0.40 |
21 |
1.87 |
3.00 |
0.40 |
0.06 |
0.04 |
1.20 |
1.60 |
|||||||||
|
07 o26’05.1” N |
|
20 - 51 |
Bt |
4.6 |
3.7 |
5.50 |
0.60 |
10 |
4.66 |
0.80 |
0.20 |
0.04 |
0.02 |
1.60 |
1.60 |
|||||||||
|
007 o12’00.1” E |
|
51 - 88 |
Btc |
5.3 |
4.1 |
5.50 |
0.40 |
14 |
1.87 |
1.00 |
0.20 |
0.04 |
0.02 |
1.20 |
1.20 |
|||||||||
|
Surface range |
|
|
|
4.7 - 5.8 |
3.8 - 5.0 |
8.40 - 16.4 |
0.40 - 1.70 |
7 - 21 |
0.93 - 1.87 |
2.00 - 4.40 |
0.40 - 2.00 |
0.05 - 0.09 |
0.03 - 0.04 |
0.20 - 1.20 |
0.20 - 1.60 |
|||||||||
|
Subsurface range |
|
|
|
4.6 - 6.3 |
3.7 - 5.3 |
1.30 - 5.50 |
0.30 - 1.10 |
3 - 17 |
0.93 - 6.53 |
0.6 - 4.40 |
0.2 - 2.4 |
0.02 - 0.07 |
0.01 - 0.04 |
0.20 - 1.60 |
0.20 - 1.60 |
|||||||||
|
Surface mean |
|
|
|
5.4 |
4.6 |
11.70 |
1.00 |
14 |
1.24 |
2.97 |
1.27 |
0.07 |
0.04 |
0.70 |
0.70 |
|||||||||
|
Subsurface mean |
|
|
|
5.6 |
4.5 |
4.10 |
0.60 |
9 |
2.55 |
1.73 |
0.92 |
0.03 |
0.02 |
0.84 |
0.59 |
|||||||||
OC = Organic carbon, TN = Total Nitrogen, Av. P = Available Phosphorus, Ca2+ = Exchangeable Calcium, Mg2+ = Exchangeable Magnesium, K+ = Exchangeable Potassium, Na+ = Exchangeable Sodium, Al3+ = Exchangeable Aluminium
|
Pedon/coordinate |
Location |
Depth |
Horizon |
EA |
CEC |
ECEC |
TEB |
PBS |
|
ESP |
ASP |
|
|
|
(cm) |
|
(cmolc kg-1) |
(%) |
||||||
|
22a1 |
Anyigba |
0 - 19 |
Ap1 |
0.80 |
9.00 |
4.91 |
4.11 |
46 |
|
0.44 |
4 |
|
07 o28’17.4” N |
|
19 - 58 |
Ap2 |
1.40 |
7.80 |
3.43 |
2.03 |
26 |
|
0.13 |
6 |
|
007 o09’55.8” E |
|
58 - 102 |
AB |
1.00 |
10.20 |
4.25 |
3.25 |
32 |
|
0.2 |
9 |
|
|
|
102 - 151 |
Btv1 |
0.80 |
10.20 |
3.24 |
2.44 |
24 |
|
0.2 |
12 |
|
|
|
151 - 208
|
Btv2 |
0.80 |
9.80 |
7.63 |
6.83 |
70 |
|
0.1 |
3 |
|
22a2 |
Okabo |
0 - 15 |
Ap1 |
1.00 |
13.20 |
4.28 |
3.28 |
25 |
|
0.23 |
5 |
|
07 o33’ 17.0” N |
|
15 - 34 |
Ap2 |
0.80 |
6.60 |
3.45 |
2.65 |
40 |
|
0.3 |
6 |
|
007 o12’06.9” E |
|
34 - 74 |
AB |
1.20 |
7.80 |
2.85 |
1.65 |
21 |
|
0.26 |
14 |
|
|
|
74 - 132 |
Btv1 |
1.60 |
7.80 |
3.25 |
1.65 |
21 |
|
0.26 |
18 |
|
|
|
132 - 170 |
Btv2 |
1.40 |
7.80 |
3.11 |
1.71 |
22 |
|
0.51 |
13 |
|
|
|
170 - 200
|
Btv3 |
0.80 |
7.80 |
2.24 |
1.44 |
18 |
|
0.23 |
27 |
|
22a3 |
Ologba |
0 - 19 |
Ap |
0.60 |
9.80 |
6.73 |
6.13 |
63 |
|
0.41 |
6 |
|
07 o 7’25.2” N |
|
19 - 42 |
Btv |
1.60 |
9.40 |
5.45 |
3.85 |
41 |
|
0.21 |
11 |
|
007 o13’15.0” E |
|
42 - 65
|
Btvx |
0.80 |
8.20 |
3.85 |
3.05 |
37 |
|
0.24 |
5 |
|
22a4 |
Abejukolo-Egume |
0 - 20 |
Ap |
2.80 |
10.60 |
6.30 |
3.50 |
33 |
|
0.38 |
25 |
|
07 o26’05.1” N |
|
20 - 51 |
Bt |
3.20 |
8.20 |
4.26 |
1.06 |
13 |
|
0.24 |
37 |
|
007o12’00.1” E |
|
51 - 88
|
Btc |
2.40 |
8.20 |
3.66 |
1.26 |
15 |
|
0.24 |
33 |
|
Surface range |
|
|
|
0.60 - 2.80 |
9.00 - 13.2 |
4.28 - 6.73 |
3.28 - 6.13 |
25 - 63 |
|
0.23 - 0.44 |
4 - 25 |
|
Subsurface range |
|
|
|
0.80 - 3.20 |
6.60 - 10.20 |
2.24 |
1.06 - 6.83 |
13 - 70 |
|
0.10 - 0.51 |
3 - 37 |
|
Surface mean |
|
|
|
1.43 |
10.8 |
5.54 |
4.41 |
42 |
|
0.36 |
12 |
|
Subsurface mean |
|
|
|
1.45 |
8.44 |
4.03 |
2.72 |
29 |
|
0.25 |
16 |
EA = Exchangeable acidity, CEC = Cation exchange capacity, ECEC = Effective Cation Exchange Capacity, TEB = Total Exchangeable Bases, PBS = Percentage Base Saturation, ESP = Exchangeable Sodium Percentage, ASP = Aluminium Saturation Percentage