Simultaneous Determination of Mineral Nutrients and Toxic Metals in M. stenopetala from Southern Ethiopia: A Comparative Study of Three Cultivating Areas Using MP-AES

Table 9

Analysis of variance between and within M. stenopetala leaf samples at a 95% confidence level.

Elements	Comparison	SD (mg kg^−1)	Df	Fcal	Fcrit	Remark
K	BS	93	4	2.29	2.54	NSD
	WS	85	40
Na	BS	2.05	4	38.91	2.54	SDs
	WS	2.72	40
Ca	BS	15.6	4	1.61	2.54	NSD
	WS	19.4	40
Mg	BS	53.1	4	54.18	2.54	SDs
	WS	37.2	40
Fe	BS	3.37	4	44.58	2.54	SDs
	WS	2.79	40
Co	BS	0.75	4	1.87	2.54	NSD
	WS	0.3	40
Ni	BS	0.08	4	67.48	2.54	SDs
	WS	0.07	40
Mn	BS	1.15	4	49.27	2.54	SDs
	WS	1.32	40
Zn	BS	0.19	4	59.64	2.54	SDs
	WS	0.37	40
Cr	BS	0.06	4	61.45	2.54	SDs
	WS	0.04	40
Cu	BS	0.05	4	2.41	2.54	NSD
	WS	0.05	40

BS = between samples, WS = within samples, NSD = no significant difference, SDs = significant difference, SD = standard deviation, D_f = degree of freedom, F_cal = Fcalculated, and F_crit = Fcritical.