Table 4.
Nutrient use efficiency during 2020–2021 and 2021–2022 growing seasons.
| Nutrient rates | 2020–2021 | 2021–2022 | |
|---|---|---|---|
| NUE (kg/kg N) | 0 kg N ha−1 | 0 | 0 |
| 40 kg N ha−1 | 3.79 ± 0.59 Ba | 22.54 ± 1.03 Aa | |
| 80 kg N ha−1 | 2.18 ± 0.37 Bb | 11.76 ± 0.66 Ab | |
| 120 kg N ha−1 | 1.53 ± 0.26 Bb | 8.16 ± 0.60 Ac | |
| PUE (kg/kg P2O5) | 0 kg P2O5 ha−1 | 0 | 0 |
| 30 kg P2O5 ha−1 | 5.05 ± 0.69 Ba | 29.47 ± 1.69 Aa | |
| 60 kg P2O5 ha−1 | 3.49 ± 0.47 Bb | 15.36 ± 0.82 Ab | |
| KUE (kg/kg K2O) | 0 kg K2O ha−1 | 0 | 0 |
| 60 kg K2O ha−1 | 2.69 ± 0.35 Ba | 14.52 ± 0.73 Aa | |
| 120 kg K2O ha−1 | 1.89 ± 0.23 Bb | 8.25 ± 0.45 Ab |
For each nutrient use efficiency and rate, means followed by the same capital letters are not significantly different at p ≤0.05. For each nutrient use efficiency and growing season, means followed by the same small letters are not significantly different.