Table 4.
The harvest indexes, utilization efficiency and productive efficiency of N, P and K under different treatments.
| Year | Treatments | N harvest index |
N utilization efficiency (kg kg− 1) |
N productive efficiency (kg kg− 1) |
P harvest index |
P utilization efficiency (kg kg− 1) |
P2O5 productive efficiency (kg kg− 1) |
K harvest index | K utilization efficiency (kg kg− 1) |
K2O productive efficiency (kg kg− 1) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | T0 | 41.74 c | 225.64 a | 47.99 c | 978.00 ab | 49.84 b | 208.64 a | |||
| T1 | 46.96 b | 192.33 b | 647.84 c | 53.03 b | 961.31 b | 647.84 c | 50.73 b | 145.13 c | 215.60 c | |
| T2 | 49.65 ab | 194.02 b | 737.92 b | 52.46 b | 1034.51 a | 737.92 b | 49.58 b | 149.81 bc | 245.58 b | |
| T3 | 50.22 a | 202.18 b | 794.14 a | 54.00 b | 982.02 ab | 794.14 a | 50.51 b | 155.52 b | 264.29 a | |
| T4 | 52.67 a | 199.29 b | 821.83 a | 60.91 a | 1031.01 a | 821.83 a | 54.41 a | 157.80 b | 273.50 a | |
| 2019 | T0 | 37.87 d | 214.10 ab | 46.36 c | 803.82 c | 47.89 b | 194.98 a | |||
| T1 | 45.12 c | 202.07 b | 700.23 c | 56.97 b | 839.72 bc | 700.23 c | 53.96 a | 144.99 c | 233.03 c | |
| T2 | 51.03 b | 201.78 b | 799.25 b | 56.04 b | 917.37 a | 799.25 b | 48.60 b | 166.70 b | 265.99 b | |
| T3 | 49.44 b | 205.59 b | 825.45 b | 55.60 b | 872.96 ab | 825.45 b | 55.84 a | 145.31 c | 274.70 b | |
| T4 | 56.69 a | 219.39 a | 898.71 a | 64.41 a | 942.90 a | 898.71 a | 53.26 a | 161.42 b | 299.08 a | |
| ANOVA | ||||||||||
| Year | ns | ns | * | ns | ** | * | ns | ns | * | |
| Treatment | * | ns | ** | ** | * | ** | ns | * | ** | |
| Year×Treatment | ns | ns | ns | ns | ns | ns | ns | * | ns | |
T0: no fertilizer application, T1: basic application of 450 kg ha− 1 WS fertilizer, T2: basic application of 60 L ha− 1 BF and 450 kg ha− 1 WS fertilizer, T3: split application of 450 kg ha− 1 WS fertilizer, T4: combined basic application of 60 L ha− 1 BF and split application of 450 kg ha− 1 WS fertilizer. Values within the same column of the same year with different letters differ significantly as determined by ANOVA-Duncan’s multiple range test (p < 0.05). *, P ≤ 0.05; **, P ≤ 0.01; ns, not significant.