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4 休闲期深松和覆盖播种旱地小麦对各生育阶段吸氮量及其比例的影响 |
Table 4 Effect of subsoiling during fallow period and sowing-mulched on nitrogen absorption amount and its ratio at different growth stages in dryland wheat |
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年份 Year | 耕作 Tillage | 播种方式 Sowing method | 播种—拔节STJ | 拔节—开花JTA | 开花—成熟ATM | 吸氮量 N absorption (kg·hm-2) | 比例 Ratio (%) | 吸氮量 N absorption (kg·hm-2) | 比例 Ratio (%) | 吸氮量 N absorption (kg·hm-2) | 比例 Ratio (%) | 丰水年 Humid year (2011-2012) | SS | FSH | 59.43a | 28.59bc | 112.21a | 53.99a | 36.19a | 17.41d | FM | 58.74a | 29.85abc | 102.30b | 51.99ab | 35.74a | 18.16d | DS | 51.59b | 30.13ab | 86.34c | 50.44b | 33.26b | 19.43c | NT | FSH | 43.47d | 29.15bc | 74.60d | 50.03b | 31.04c | 20.82b | FM | 47.72c | 28.56c | 85.49c | 51.18ab | 33.86b | 20.26bc | DS | 40.04e | 30.79 a | 59.58e | 45.81c | 30.41c | 23.40a | 欠水年 Dry year (2012-2013) | SS | FSH | 36.82a | 31.42ab | 57.06b | 48.68b | 23.32a | 19.90bc | FM | 37.92a | 29.43b | 66.66a | 51.74a | 24.27a | 18.83c | DS | 32.86b | 32.36a | 46.80c | 46.09c | 21.88b | 21.55ab | NT | FSH | 28.95c | 31.88ab | 41.89d | 46.13c | 19.97bc | 21.99ab | FM | 31.56b | 29.05b | 55.23b | 50.84a | 21.85b | 20.11bc | DS | 26.15d | 32.71a | 35.28e | 44.12d | 18.53c | 23.17a | 欠水年 Dry year (2015-2016) | SS | FSH | 30.78b | 28.11ab | 56.23b | 51.35a | 22.50a | 20.54b | FM | 33.78a | 27.97b | 63.77a | 52.80a | 23.23a | 19.23b | DS | 29.56bc | 29.50a | 48.96c | 48.87b | 21.67b | 21.63ab | NT | FSH | 26.76c | 29.21a | 45.11d | 49.24ab | 19.73c | 21.54ab | FM | 30.32b | 28.33ab | 54.84b | 51.25a | 21.86b | 20.42b | DS | 24.28d | 30.10a | 37.30e | 46.25c | 19.08c | 23.65a |
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