Assessment of soil quality for agricultural purposes around the Barapukuria coal mining industrial area, Bangladesh: insights from chemical and multivariate statistical analysis

Environmental Systems Research

Table 7 The ANOVA test showing the mean differences between three clusters

Parameters	SS	D.F	MS	F-ratio	p-level
pH
Between groups	3.380	2	1.690	16.342	0.000
Within groups	1.551	15	0.103
Total	4.932	17
Total N
Between groups	0.005	2	0.002	2.711	0.099
Within groups	0.013	15	0.001
Total	0.018	17
OM
Between groups	0.890	2	0.445	1.488	0.0001
Within groups	4.483	15	0.299
Total	5.373	17
K
Between groups	5.897	2	2.948	0.332	0.722
Within groups	133.023	15	8.868
Total	138.920	17
P
Between groups	415.918	2	207.959	2.046	0.164
Within groups	1524.407	15	101.627
Total	1940.325	17
S
Between groups	1318.413	2	659.207	6.291	0.060
Within groups	1571.684	15	104.779
Total	2890.097	17
Fe
Between groups	186.264	2	93.132	1.348	0.0013
Within groups	1036.359	15	69.091
Total	1222.623	17
As
Between groups	0.000	2	0.000	0.042	0.959
Within groups	0.001	15	0.000
Total	0.001	17
Cu
Between groups	0.784	2	0.392	3.771	0.047
Within groups	1.559	15	0.104
Total	2.343	17
Ni
Between groups	0.020	2	0.010	0.408	0.672
Within groups	0.373	15	0.025
Total	0.393	17
Alkalinity
Between groups	14,749.865	2	7374.933	20.852	0.000
Within groups	5305.079	15	353.672
Total	20,054.944	17