| 年份 Year | 处理 Treatment | 氮积累量N accumulations (kg·hm-2) | 氮素当季 回收率 NRE (%) | 氮素农学 利用率 NAE (kg·kg-1) | 氮素偏生产力 NPFP (kg·kg-1) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 苗期 Seedling | 拔节期 Jointing | 大喇叭口期 Belling | 开花期 Flowering | 灌浆期 Filling | 成熟期 Maturing | |||||
| 2014 | CK | 2.5b | 25.9d | 63.0d | 94.3c | 109.7d | 124.3d | — | — | — |
| CU | 3.0a | 40.9a | 91.8a | 118.7a | 149.9c | 164.5c | 20.1c | 6.5c | 49.1c | |
| SCU | 2.9a | 36.0b | 88.9ab | 115.3a | 157.5ab | 183.1b | 29.4b | 12.5b | 55.2b | |
| CRF | 2.9a | 34.5bc | 85.5bc | 111.8ab | 162.2a | 193.7a | 34.7a | 16.1a | 58.7a | |
| SU | 2.9a | 34.8bc | 82.7c | 107.0b | 158.8a | 187.9ab | 31.8ab | 13.8ab | 56.4ab | |
| UF | 3.0a | 33.1c | 81.5c | 102.1b | 153.3bc | 182.5b | 29.1b | 11.1b | 53.8b | |
| 2015 | CK | 2.7b | 24.1c | 59.4d | 88.7d | 108.9d | 116.0d | — | — | — |
| CU | 3.2a | 43.3a | 99.2a | 126.8a | 154.7c | 171.4c | 27.7c | 11.1c | 51.2b | |
| SCU | 3.1a | 39.1ab | 92.5b | 120.1ab | 160.9bc | 189.1b | 36.6b | 17.3b | 57.5a | |
| CRF | 3.0a | 35.5b | 89.7bc | 116.9b | 168.9a | 197.9a | 41.0a | 20.7a | 60.9a | |
| SU | 3.1a | 33.8b | 88.2bc | 114.8bc | 163.2ab | 194.6ab | 39.3a | 19.1ab | 59.2a | |
| UF | 3.2a | 33.5b | 85.3c | 109.3c | 159.5bc | 187.5b | 35.8b | 16.4b | 56.5a | |
| 方差分析 ANOVA | ||||||||||
| 年份 Year (Y) | NS | NS | ** | ** | ** | * | ** | ** | ** | |
| 施肥处理 Fertilization (F) | ** | ** | ** | ** | ** | ** | ** | ** | ** | |
| 年份×施肥处理 Y×F | NS | NS | NS | * | * | * | NS | NS | NS | |
