Table 6.

Pearson's correlation coefficient among different mineral nutrients of purslane.

Factors	N	P	K	Na	Ca	Mg	Zn	Fe	Mn
N	1
P	−0.11 ns	1
K	0.05 ns	0.25 ns	1
Na	−0.25 ns	0.02 ns	0.42 ns	1
Ca	−0.17 ns	−0.06 ns	−0.12 ns	0.08 ns	1
Mg	0.04 ns	−0.43 ns	−0.20	−0.65*	0.36 ns	1
Zn	0.37 ns	0.20 ns	0.01 ns	0.07 ns	−0.36 ns	−0.43 ns	1
Fe	0.04 ns	0.49 ns	0.03 ns	0.05 ns	0.14 ns	−0.31 ns	0.57*	1
Mn	0.39 ns	0.56*	0.24 ns	0.01 ns	−0.12 ns	−0.38 ns	0.49 ns	0.58*	1

Here N, P, K, Na, Ca, Mg, Zn, Fe, and Mn indicate nitrogen, phosphorus, potassium, sodium, calcium, magnesium, zinc, iron, and manganese, respectively. *0.05 > P > 0.01; ns: not significant; −: negative correlation at 0.05% level.