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โครงการรวบรวมและจัดทําวารสารอิเล็กทรอนิกส์ มหาวิทยาลัยเกษตรศาสตร์

52 Thai J. For. 34 (3) : 44-55 (2015)

Table 4 &KHPLFDO SURSHUWLHV RI . &D 0J 1D &(& DQG %6 LQ VRLO SUR¿OHV

-1
Depth Extractable (mg kg ) CEC B.S.
(cm) K * Ca * Mg * Na * (cmol kg ) * (%) *
-1
0-5 57.75 L VL M VL ML L
5-10 L VL 101.10 L 4.70 VL ML L
10-20 L 8.58 VL L 2.95 VL 4.02 L L
VL VL L 2.98 VL 2.50 L L
L VL 110.55 L VL L L
14.28 VL VL M 2.50 VL 8.04 ML 14.99 L
VL VL M 2.90 VL ML L
80-100 VL 7.58 VL 122.50 M 2.85 VL ML 12.29 L
100-120 10.88 VL VL 100.55 L VL 11.07 M L
120-140 21.05 VL VL 59.45 L 1.98 VL 7.99 ML L
L VL VL VL L 8.15 L
VL VL 40.00 L 4.70 VL ML L
180-200 L 0.95 VL L 0.88 VL L 9.18 L
Notes: VL = very low, L = low, ML = moderately low, M = medium, MH = moderately high, H = high, VH = very high
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Table 5 6WRUDJH RI FDUERQ DQG QXWULHQWV LQ VRLOV
-1
Soil depth OM C Total N Available P Extractable (kg ha )
-1
(cm) (Mg ha ) (kg ha ) K Ca Mg Na
-1
0-5 82.89 48.08 244.99
5-10 49.27 28.58 2.42
10-20 11.90 4.09
27.18 1.41 1.54 22.58 0.17 92.00
12.57 0.89 1.22 148.07
0.20
8.47 4.91 0.18 5.57
80-100 7.15 4.15 42.44
100-120 4.25 0.15 1.40 11.52 5.10
120-140 2.50 0.15 4.88
2.77 0.15 1.22 54.08
2.19 1.27 1.20 17.20
180-200 1.82 1.05 0.15 0.91
Total 291.00 168.78 14.87 46.64 529.00 321.06 1,876.29 55.61