Table 3. Element inter-relationship in PD for element linkage map.

Number of interaction	Element X	Element Y	Degree of correlation in PD
1	Ca	Mg	0.234*
2	Ca	P	−0.789
3	Cu	Mo	−0.397
4	Cu	Cd	−0.802
5	Cu	Ni	−0.973
6	Cu	Zn	0.922
7	Cu	Ca	−0.267*
8	Cu	Pb	0.737
9	Cu	Fe	0.289*
10	Cd	Co	−0.188*
11	Cd	Fe	−0.802
12	Cd	Ca	−0.359
13	Cd	Zn	−0.970
14	Fe	Mn	0.397
15	Fe	Pb	−0.433
16	Fe	P	−0.338*
17	Fe	Zn	0.636
18	Fe	Co	0.866
19	Mn	P	0.729
20	Mn	V	0.0821*
21	Mn	Ca	−0.155*
22	P	Al	−0.957
23	Pb	P	0.994
24	Pb	Ca	−0.848
25	S	Mo	−0.755
26	Se	Cd	−0.970
27	Se	Cu	0.636
28	Se	Co	0.419
29	Se	Hg	0.090*
30	Se	S	0.907
31	Zn	Ni	−0.986
32	Zn	Pb	0.419
33	Zn	Ca	0.124*

*Insignificance (p>0.05).