Table 5.

Effect of trace elements on the relative abundance of toxigenic fungi in FLF.

Item	Factor	Mean			Range1	Best concen.2	Significance order
		Concen. 1	Concen. 2	Concen. 3
Aspergillus	Cu2+	0.44	1.02	2.70	2.26	Concen. 1	Cu2+ > Zn2+ > I− > Fe2+
	Zn2+	0.54	1.36	2.26	1.72	Concen. 1
	Fe2+	1.27	1.92	0.97	0.94	Concen. 3
	I−	2.22	0.90	1.04	1.32	Concen. 2
Fusarium	Cu2+	0.28	0.18	0.46	0.28	Concen. 2	Zn2+ > Fe2+ = Cu2+ > I−
	Zn2+	0.12	0.32	0.47	0.36	Concen. 1
	Fe2+	0.27	0.46	0.19	0.28	Concen. 3
	I−	0.32	0.31	0.29	0.04	Concen. 3
Alternaria	Cu2+	0.26	0.17	0.42	0.25	Concen. 2	Cu2+ > I− > Zn2+ > Fe2+
	Zn2+	0.21	0.25	0.38	0.17	Concen. 1
	Fe2+	0.25	0.30	0.30	0.05	Concen. 1
	I−	0.25	0.19	0.41	0.22	Concen. 2
Penicillium	Cu2+	0.12	0.19	0.48	0.36	Concen. 1	Cu2+ > Fe2+ = I− > Zn2+
	Zn2+	0.23	0.23	0.33	0.10	Concen. 2
	Fe2+	0.22	0.36	0.21	0.15	Concen. 3
	I−	0.33	0.18	0.28	0.15	Concen. 2

¹Range = maximal relative abundance minus minimal relative abundance.

²Concen. = concentration. The best concentration is the concentration to achieve the minimal relative abundance.