不同降雨年型旱地冬小麦水分利用及产量对施氮量的响应
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刘朋召,周栋,郭星宇,于琦,张元红,李昊昱,张琦,王旭敏,王小利,王瑞,李军
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Response of Water Use and Yield of Dryland Winter Wheat to Nitrogen Application Under Different Rainfall Patterns
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LIU PengZhao,ZHOU Dong,GUO XingYu,YU Qi,ZHANG YuanHong,LI HaoYu,ZHANG Qi,WANG XuMin,WANG XiaoLi,WANG Rui,LI Jun
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表1 不同降雨年型施氮量对旱地冬小麦耗水量和水分利用效率的影响
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Table 1 Effects of N treatments on water use efficiency and evapotranspiration of dryland winter wheat under different rainfall patterns
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处理
N treatment | 耗水量Evapotranspiration, ET (mm) | 水分利用效率Water use efficiency (kg·hm-2·mm-1) | 丰水年
Humid year
(2017—2018) | 欠水年
Dry year
(2018—2019) | 平水年
Normal year
(2019—2020) | 丰水年
Humid year
(2017—2018) | 欠水年
Dry year
(2018—2019) | 平水年
Normal year
(2019—2020) | | N0 | 285.9±6.2d | 213.0±5.6c | 277.3±7.5d | 12.1±0.7d | 8.5±0.7c | 9.9±0.4c | | N60 | 299.0±5.9c | 225.7±1.8b | 285.3±5.5c | 14.6±1.2c | 10.9±0.8b | 11.2±0.8b | | N120 | 311.8±6.3b | 230.3±5.7a | 283.5±3.4c | 16.3±0.9b | 11.2±1.2a | 13.1±0.6a | | N180 | 310.1±5.4b | 231.4±8.3a | 290.3±9.2b | 16.9±0.3a | 9.5±1.4b | 13.4±0.5a | | N240 | 327.6±9.6a | 230.2±7.2a | 303.5±4.4a | 16.1±0.2b | 8.2±0.5c | 12.5±1.3b | | F-value | | | | | | | | 施氮Nitrogen (N) | | 54.8** | | | 59.2** | | | 年型Year (Y) | | 1234*** | | | 387.8*** | | | 施氮×年型N×Y | | 4.6* | | | 14.7** | |
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