Table 3.
Fertilization effects on grain micro-elemental contents of four maize cultivars over two years.
| N Fertilization | Na (mg kg−1) | Ca (mg kg−1) | Mg (mg kg−1) | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NS-640 | NS-4023 | NS-6010 | NS-6030 | NS-640 | NS-4023 | NS-6010 | NS-6030 | NS-640 | NS-4023 | NS-6010 | NS-6030 | |||||||||||||
| 1st Year | 2nd Year | 1st Year | 2nd Year | 1st Year | 2nd Year | 1st Year | 2nd Year | 1st Year | 2nd Year |
1st Year |
2nd Year | 1st Year |
2nd Year | 1st Year |
2nd Year | 1st Year |
2nd Year |
1st Year |
2nd Year |
1st Year |
2nd Year |
1st Year | 2nd Year | |
| N1 | 155 | 168 | 153 | 169 | 156 | 168 | 149 | 172 | 0.13 | 0.15 | 0.13 | 0.15 | 0.13 | 0.15 | 0.13 | 0.16 | 0.11 | 0.13 | 0.12 | 0.13 | 0.12 | 0.12 | 0.12 | 0.13 |
| N2 | 155 | 162 | 132 | 178 | 147 | 161 | 163 | 169 | 0.13 | 0.15 | 0.12 | 0.16 | 0.13 | 0.15 | 0.14 | 0.15 | 0.11 | 0.13 | 0.11 | 0.13 | 0.12 | 0.13 | 0.12 | 0.13 |
| N3 | 170 | 152 | 157 | 155 | 168 | 166 | 166 | 168 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.15 | 0.14 | 0.15 | 0.13 | 0.12 | 0.12 | 0.13 | 0.13 | 0.14 | 0.13 | 0.12 |
| N4 | 178 | 167 | 172 | 166 | 176 | 169 | 179 | 160 | 0.15 | 0.15 | 0.14 | 0.15 | 0.16 | 0.15 | 0.15 | 0.15 | 0.12 | 0.13 | 0.12 | 0.13 | 0.12 | 0.13 | 0.12 | 0.13 |
| N5 | 263 | 168 | 158 | 166 | 158 | 166 | 172 | 173 | 0.20 | 0.15 | 0.13 | 0.15 | 0.13 | 0.15 | 0.14 | 0.16 | 0.14 | 0.13 | 0.12 | 0.13 | 0.12 | 0.14 | 0.12 | 0.12 |
| N6 | 156 | 164 | 178 | 160 | 165 | 183 | 163 | 169 | 0.13 | 0.15 | 0.15 | 0.14 | 0.14 | 0.16 | 0.14 | 0.15 | 0.12 | 0.13 | 0.13 | 0.12 | 0.12 | 0.13 | 0.13 | 0.14 |
| N7 | 177 | 170 | 166 | 164 | 155 | 163 | 144 | 163 | 0.15 | 0.15 | 0.13 | 0.15 | 0.13 | 0.15 | 0.12 | 0.15 | 0.12 | 0.13 | 0.12 | 0.13 | 0.12 | 0.14 | 0.13 | 0.13 |
| N8 | 187 | 174 | 179 | 168 | 179 | 170 | 159 | 163 | 0.16 | 0.16 | 0.15 | 0.15 | 0.15 | 0.15 | 0.14 | 0.15 | 0.12 | 0.13 | 0.12 | 0.14 | 0.12 | 0.14 | 0.12 | 0.13 |
| ANOVA | 1st Year: N = 1.02 ns, C = 0.99 ns, N × C = 0.57 ns
2nd Year: N = 1.31 ns, C = 0.45 ns, N × C = 1.41 ns |
1st Year: N = 1.02 ns, C = 0.93 ns, N × C = 0.60 ns
2nd Year: N = 1.46 ns, C = 1.22 ns, N × C = 0.97 ns |
1st Year: N = 1.55 ns, C = 0.34 ns, N × C = 0.60 ns
2nd Year: N = 0.75 ns, C = 1.60 ns, N × C = 1.24 ns |
|||||||||||||||||||||
| Zn (mg kg−1) | Mn (mg kg−1) | Cu (mg kg−1) | ||||||||||||||||||||||
| NS-640 | NS-4023 | NS-6010 | NS-6030 | NS-640 | NS-4023 | NS-6010 | NS-6030 | NS-640 | NS-4023 | NS-6010 | NS-6030 | |||||||||||||
| 1st Year | 2nd Year | 1st Year | 2nd Year | 1st Year | 2nd Year | 1st Year | 2nd Year | 1st Year |
2nd
Year |
1st
Year |
2nd Year |
1st
Year |
2nd Year |
1st
Year |
2nd Year |
1st
Year |
2nd
Year |
1st
Year |
2nd
Year |
1st
Year |
2nd
Year |
1st Year | 2nd Year | |
| N1 | 22.3 | 22.9 | 23.4 | 23.6 | 22.8 | 21.9 | 24.6 | 25.9 | 5.56 | 6.11 | 6.25 | 5.78 | 6.46 | 6.18 | 6.34 | 8.24 | 3.71 | 4.01 | 3.70 | 4.20 | 3.75 | 3.61 | 3.83 | 5.34 |
| N2 | 37.7 | 23.2 | 32.3 | 23.6 | 21.7 | 22.2 | 29.6 | 23.6 | 5.57 | 6.41 | 6.37 | 6.17 | 6.80 | 7.62 | 6.26 | 8.51 | 4.90 | 4.06 | 4.54 | 5.10 | 3.64 | 4.56 | 5.63 | 5.22 |
| N3 | 29.6 | 22.4 | 21.0 | 22.3 | 23.2 | 25.5 | 22.7 | 21.9 | 6.63 | 6.49 | 6.83 | 6.55 | 6.81 | 7.61 | 6.88 | 7.65 | 5.00 | 4.00 | 3.73 | 4.72 | 3.94 | 5.01 | 3.97 | 4.36 |
| N4 | 23.7 | 22.9 | 28.8 | 24.5 | 32.5 | 21.6 | 22.8 | 24.5 | 5.93 | 6.12 | 7.05 | 5.71 | 6.32 | 7.03 | 5.94 | 8.24 | 3.80 | 4.89 | 4.26 | 4.18 | 5.48 | 4.28 | 3.89 | 4.10 |
| N5 | 27.2 | 22.0 | 20.2 | 25.4 | 27.4 | 22.3 | 30.7 | 21.5 | 6.74 | 6.46 | 6.64 | 6.02 | 6.64 | 7.12 | 6.26 | 7.34 | 5.73 | 4.07 | 3.91 | 4.05 | 4.34 | 4.91 | 5.33 | 4.75 |
| N6 | 30.6 | 23.5 | 25.5 | 21.6 | 20.7 | 22.8 | 27.3 | 24.9 | 5.86 | 6.69 | 6.88 | 6.08 | 6.14 | 7.41 | 7.30 | 8.33 | 4.02 | 4.38 | 5.65 | 3.84 | 3.72 | 5.80 | 4.31 | 4.25 |
| N7 | 44.1 | 23.7 | 23.2 | 22.6 | 37.4 | 24.4 | 51.8 | 21.0 | 5.93 | 6.92 | 6.47 | 6.36 | 6.36 | 7.66 | 6.94 | 7.75 | 6.41 | 6.21 | 4.22 | 3.74 | 4.43 | 4.66 | 4.29 | 4.49 |
| N8 | 21.2 | 23.0 | 21.9 | 25.3 | 33.4 | 25.1 | 21.7 | 22.5 | 5.99 | 6.51 | 6.63 | 6.70 | 6.70 | 7.57 | 6.17 | 7.83 | 4.18 | 5.70 | 4.14 | 4.33 | 7.27 | 7.02 | 3.59 | 4.67 |
| ANOVA | 1st Year: N = 2.06 ns, C = 0.77 ns, N × C = 0.72 ns
2nd Year: N = 0.20 ns, C = 0.19 ns, N × C = 0.86 ns |
1st Year: N = 0.86 ns, C = 3.10 *, N × C = 0.66 ns
2nd Year: N = 1.54 ns, C = 35.61 ***, N × C = 0.85 ns |
1st Year: N = 0.53 ns, C = 0.30 ns, N × C = 0.84 ns
2nd Year: N = 1.19 ns, C = 1.83 ns, N × C = 1.54 ns |
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Values of each variable are means of four replicates. For each variable under each maize cultivar. For ANOVA analyses, * and *** show significant N fertilization (N), maize cultivar (C), and their interaction effects at p < 0.05, and p < 0.001, ns—not significant, respectively.