Table 5.

Raw canonical coefficients of discriminant functions for the N group (only P, S, K, Fe, Cu, and Se are taken into account)

Element	Discriminant function
	1	2	3	4	5
Constant value	− 4.6426	− 1.0535	− 0.1169	− 3.4667	− 11.665
P	0.0023	−0.0033	− 0.0025	− 0.0004	0
S	0.0012	0.0028	0.0064	0.0014	0.001
K	− 0.0041	0.0009	0.0006	− 0.0004	0.001
Fe	− 0.0030	− 0.0053	− 0.0069	0.0129	− 0.001
Cu	− 0.1407	1.9515	− 2.3879	0.5586	0.338
Se	17.0947	− 5.1035	7.8388	− 1.7549	0.853