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. 2024 Mar 14;13(6):844. doi: 10.3390/plants13060844

Table 5.

Fertilization effects on grain yield (kg ha−1) of four maize cultivars over two years.

N Fertilization NS-640 NS-4023 NS-6010 NS-6030
1st Year 2nd Year 1st Year 2nd Year 1st Year 2nd Year 1st Year 2nd Year
N1 6376 5528 5625 4755 6511 5670 6503 6427
N2 10,518 7168 9794 6837 10,024 7163 10,096 8006
N3 10,741 8357 10,993 7620 11,320 8028 11,785 8317
N4 9368 7304 10,038 6868 10,367 7121 10,226 8075
N5 10,733 7882 10,689 6981 11,092 7184 11,206 7716
N6 12,310 7991 11,231 7102 12,502 7773 12,163 7840
N7 12,934 7297 10,981 6214 12,044 7828 12,738 7084
N8 10,282 6707 9940 5887 10,826 6865 10,251 7020
ANOVA 2011: N = 128.47 ***, C = 7.93 ***, N × C = 1.74 ns; 2012: N = 29.57 ***, C = 19.68 ***, N × C = 1.17 ns

Values are means of four replicates. For each maize cultivar, bold values indicate significant differences between years at p < 0.05. For ANOVA analyses, *** show significant N fertilization (N), maize cultivar (C), and their interaction effects (N × C) at p < 0.001. ns = non-significant effects.