Biofortification of Spring Barley Grain with Microelements through Sulfur Fertilization

Table 3

The content of microelements by spring barley grain (mg·kg⁻¹).

Year	Control	Type of fertilizer						Mean
		(NH4)2SO4		K2SO4		Wigor S
		Dose of sulphur (kg·ha^−1)
		20	40	20	40	20	40
Content of Mn
2010	8.7^a	9.7^bc	10.5^d	10.1^cd	10.8^d	9.1^ab	9.7^bc	9.8
2011	10.4^a	11.4^bc	11.9^c	11.3^bc	11.0^ab	11.5^bc	11.9^c	11.3
2012	10.8^a	12.9^c	14.2^c	11.7^b	12.6^cd	11.9^bc	11.2^ab	12.2
Mean	9.9^a	11.3^b	12.2^c	11.0^b	11.5^bc	10.8^b	10.9^b	11.1
		11.8		11.3		10.9
Content of Fe
2010	68.5^a	74.5^ab	84.3^c	76.2^b	74.0^ab	78.1^bc	74.5^ab	75.7
2011	63.5^a	65.7^a	83.5^c	74.2^b	82.8^c	64.0^a	69.9^ab	71.9
2012	57.7^ab	69.6^c	75.1^c	51.9^a	59.8^b	54.4^ab	57.8^ab	60.9
Mean	63.2^a	69.9^ab	81.0^c	67.4^ab	72.2^b	65.5^ab	67.4^ab	69.5
Content of Zn
2010	60.4^c	62.9^d	54.6^b	45.3^a	69.0^e	57.8^bc	63.6^d	59.1
2011	71.0^ab	67.6^a	78.1^d	71.1^b	76.1^cd	73.8^bc	79.5^d	73.9
2012	65.8^c	61.2^b	71.2^d	73.3^d	81.4^e	60.0^b	53.4^a	66.6
Mean	65.7^a	63.9^a	68.0^b	63.3^a	75.5^c	63.9^a	65.5^a	66.5
Content of Cu
2010	3.1	2.5	3.1	2.9	2.9	3.1	3.0	2.9
2011	5.7	5.7	5.9	5.8	5.7	6.3	5.9	5.9
2012	5.1	5.7	6.8	4.6	5.0	5.0	5.2	4.8
Mean	4.6	4.6	5.2	4.4	4.6	4.8	4.7	4.7
		4.9		4.5		4.8

Note. Cu: LSD_0.05 = n.s.