Table 4.

Correlations coefficients (r) between soil pH, soil chemical properties and plant tissue nutrients content in Meru region.

Tissue nutrient	Soil nutrients
	Soil pH	N	P	K	Ca	S	Mg	Zn	B	Cu
N	−0.02	0.22*	0.10	0.03	0.08	0.19	−0.07	−0.05	0.08	−0.08
P	0.37*	−0.01	0.49*	0.25*	0.31*	0.02	0.20*	0.04	0.18	−0.40*
K	0.20*	−0.27*	0.22*	0.32*	0.01	−0.23*	0.05	0.08	0.01	−0.12
Ca	0.27*	0.49*	0.13	0.01	0.49*	0.33*	0.07	0.08	0.34*	−0.40*
S	0.10	−0.14	0.11	0.01	−0.02	−0.10	0.13	−0.13	−0.07	−0.13
Mg	−0.21*	0.20*	−0.23*	−0.31*	−0.06	0.29*	−0.01	−0.15	0.03	0.30*
Zn	−0.09	−0.06	−0.08	−0.09	−0.11	0.01	−0.12	0.09	−0.03	0.06
B	−0.21*	−0.39*	−0.22*	−0.05	−0.36*	−0.06	−0.25*	0.06	−0.23*	0.26*
Cu	−0.30*	−0.59*	−0.24*	−0.18	−0.52*	−0.19	−0.09	−0.41*	−0.40*	0.44*

*level of significant P < 0.05.