Table 2 Post-silking nitrogen accumulation and remobilization of the four varieties under different nitrogen rate.
Year | Treatment | Varieties | Nitrogen accumulation before ailking (kg ha−1) | Nitrogen accumulation after ailking (kg ha−1) | Nitrogen remobilization (kg ha−1) | Contribution of nitrogen remobilization (%) |
|---|---|---|---|---|---|---|
2018 | HN | ND19 | 129.44 ± 2.88a | 72.53 ± 1.53a | 31.96 ± 1.5b | 30.57 ± 1.74d |
ND29 | 124.19 ± 2.23b | 70.49 ± 1.52a | 35.03 ± 1.76b | 33.19 ± 1.35c | ||
ND17 | 117.16 ± 1.28c | 63.3 ± 1.26b | 41.49 ± 1.73a | 39.58 ± 1.47b | ||
N19022 | 113.89 ± 2.52c | 58.72 ± 1.29c | 43.01 ± 2.53a | 42.26 ± 1.99a | ||
LN | ND19 | 103.25 ± 4.65a | 22.55 ± 1.03a | 46.66 ± 3.27ab | 67.35 ± 1.87b | |
ND29 | 95.32 ± 2.31b | 21.86 ± 0.95a | 43.2 ± 1.93b | 66.36 ± 1.96b | ||
ND17 | 86.57 ± 1.75c | 18.53 ± 0.49b | 46.57 ± 1.49ab | 71.52 ± 0.97a | ||
N19022 | 87.37 ± 2.48c | 17.7 ± 0.84b | 49.52 ± 1.94a | 73.66 ± 1.04a | ||
2019 | HN | ND19 | 142.31 ± 1.61a | 75.16 ± 0.9a | 40.76 ± 1.49b | 35.15 ± 0.90b |
ND29 | 133.15 ± 1.26b | 76.13 ± 1.64a | 40.55 ± 2.98b | 34.71 ± 2.17b | ||
ND17 | 126.29 ± 1.77c | 63.52 ± 1.56b | 50.37 ± 2.85a | 44.19 ± 2.01a | ||
N19022 | 124.01 ± 1.08c | 64.67 ± 1.31b | 48.96 ± 1.23a | 43.08 ± 0.89a | ||
LN | ND19 | 112.3 ± 1.69a | 23.14 ± 1.13a | 53.45 ± 1.10b | 69.79 ± 1.18c | |
ND29 | 107.68 ± 1.56a | 22.65 ± 0.87a | 53.36 ± 1.58b | 70.19 ± 1.48c | ||
ND17 | 95.43 ± 3.1b | 19.17 ± 0.44b | 53.93 ± 2.62b | 73.73 ± 1.47b | ||
N19022 | 99.41 ± 3.59b | 18.41 ± 0.81b | 59.55 ± 1.44a | 76.37 ± 1.23a | ||
F-value | Y | 235.75** | 45.76** | 180.06** | 44.88** | |
N | 1607.68** | 22,415.2** | 245.5** | 6150.33** | ||
V | 111.83** | 191.99** | 37.19** | 96.72** | ||
Y × V | 0.65 | 21.24** | 1.2 | 0.01 | ||
Y × V | 0.94 | 4.76** | 0.02 | 0.89 | ||
N × V | 2.29 | 39.99** | 10.98** | 6.62** | ||
Y × N × V | 2.44 | 4.32** | 2.25 | 2.21 | ||
