Table 3 Analysis of chemical soil properties by layer

Division		M	SE¹⁾	F	P
pH	0~10cm	6.35^a	0.14	.460	.634
	10~20cm	6.51^a	0.16
	20~30cm	6.55^a	0.17
E.C	0~10cm	0.08^a	0.01	2.095	.132
	10~20cm	0.06^a	0.01
	20~30cm	0.06^a	0.01
C.E.C	0~10cm	9.21^a	0.64	.918	.405
	10~20cm	8.26^a	0.63
	20~30cm	8.10^a	0.61
O.M	0~10cm	1.94^a	0.30	.188	.188
	10~20cm	1.44^a	0.27
	20~30cm	1.26^a	0.23
T-N	0~10cm	0.09^a	0.01	.026	.974
	10~20cm	0.08^a	0.01
	20~30cm	0.08^a	0.02
Av.P₂O₅	0~10cm	154.55^a	31.61	.155	.857
	10~20cm	139.03^a	33.02
	20~30cm	129.87^a	30.46
K⁺	0~10cm	0.23^a	0.03	.885	.418
	10~20cm	0.19^a	0.03
	20~30cm	0.19^a	0.03
Ca⁺⁺	0~10cm	6.28^a	0.62	.297	.744
	10~20cm	7.63^a	1.61
	20~30cm	7.71^a	1.88
Mg⁺⁺	0~10cm	0.82^a	0.10	1.022	.366
10~20cm	0.65^a	0.10
20~30cm	0.65^a	0.10

Standard error
A result of Duncan's multiple range test