极端年型旱地麦田深松和覆盖播种水分消耗与植株氮素吸收、利用关系的研究
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李念念, 孙敏, 高志强, 张娟, 张慧芋, 梁艳妃, 杨清山, 杨珍平, 邓妍
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A Study on the Relationship Between Water Consumption and Nitrogen Absorption, Utilization Under Sub-Soiling During the Fallow Period Plus Mulched-Sowing in Humid and Dry Years of Dryland Wheat
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NianNian LI, Min SUN, ZhiQiang GAO, Juan ZHANG, HuiYu ZHANG, YanFei LIANG, QingShan YANG, ZhenPing YANG, Yan DENG
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| 表7 休闲期深松和覆盖播种对产量和效率的影响 |
| Table 7 Effects of subsoiling during fallow period and sowing-mulched on yield and use efficiency in dryland wheat |
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年份
Year | 耕作
Tillage | 播种方式
Sowing
method | 产量
Yield
(kg·hm-2) | 水分利用效率
WUE
(kg·hm-2·mm-1) | 氮素吸收效率
NUP
(kg·kg-1) | 氮素收获指数
NHI | 氮素利用效率
NUE
(kg·kg-1) | 氮素生产效率
NPE
(kg·kg-1) | 丰水年
Humid year
(2011-2012) | SS | FHS | 6854.35a | 14.45a | 1.39a | 0.84a | 32.98ab | 45.70a | | FM | 6194.60b | 13.52b | 1.31b | 0.83a | 31.48bc | 41.30b | | DS | 5576.45c | 12.03c | 1.14c | 0.81ab | 32.58b | 37.18c | | NT | FHS | 5246.85d | 11.27d | 0.99d | 0.80ab | 35.19a | 34.98d | | FM | 5324.85d | 11.88cd | 1.11c | 0.81ab | 31.87bc | 35.50d | | DS | 4120.60e | 10.05e | 0.87e | 0.78b | 31.69bc | 27.47e | 欠水年
Dry year
(2012-2013) | SS | FHS | 3308.89b | 9.20b | 0.78b | 0.78a | 28.19bc | 22.03b | | FM | 3713.96a | 10.01a | 0.86a | 0.79a | 28.82b | 24.76a | | DS | 2991.45c | 8.65c | 0.68d | 0.76a | 29.46ab | 19.94c | | NT | FHS | 2709.22d | 9.03c | 0.61e | 0.76a | 29.83ab | 18.06d | | FM | 2856.15cd | 9.07c | 0.72c | 0.78a | 26.29c | 19.04cd | | DS | 2473.42e | 8.10d | 0.53f | 0.72a | 30.93a | 16.49e | 欠水年
Dry year
(2015-2016) | SS | FHS | 4185.34b | 11.29b | 0.80b | 0.79ab | 34.77a | 27.90b | | FM | 4739.86a | 12.08a | 0.90a | 0.81a | 35.02a | 31.60a | | DS | 3773.35c | 10.79c | 0.70c | 0.75bc | 35.98a | 25.16c | | NT | FHS | 3532.75d | 10.66c | 0.66c | 0.74bc | 35.90a | 23.52d | | FM | 4084.38b | 11.78b | 0.76b | 0.78ab | 35.87a | 27.23b | | DS | 3004.89e | 9.92d | 0.60d | 0.70c | 33.28b | 20.03e |
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