华北冬小麦开花期补灌的增产效应及其影响因素
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张经廷,吕丽华,董志强,张丽华,姚艳荣,申海平,姚海坡,贾秀领
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Yield-increasing effect of supplementary irrigation at winter wheat flowering and its influencing factors based on water and nitrogen coupling in north China
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Jing-Ting ZHANG,Li-Hua LYU,Zhi-Qiang DONG,Li-Hua ZHANG,Yan-Rong YAO,Hai-Ping SHEN,Hai-Po YAO,Xiu-Ling JIA
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表1 试验期间各年度降水量和灌水量
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Table 1 Precipitation and irrigation amount during the experimental period (mm)
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| 年份 Year | 小麦季总降水量
Precipitation of
wheat season | 拔节-开花期降水量
Precipitation from jointing to flowering stage | W1处理灌水量
Irrigation amount of
W1 treatment | W2处理灌水量 Irrigation amount of W2 treatment | 拔节期
Jointing stage | 开花期
Flowering stage | 总量
Total | | 2007 | 125.4 | 11.7 | 67.5 | 67.5 | 74.5 | 142.0 | | 2008 | 163.4 | 39.4 | 68.3 | 68.3 | 69.0 | 137.3 | | 2009 | 67.3 | 0 | 75.0 | 75.0 | 67.5 | 142.5 | | 2010 | 107.3 | 8.1 | 76.3 | 76.3 | 69.5 | 145.8 | | 2011 | 71.5 | 0 | 78.2 | 78.2 | 72.4 | 150.6 | | 2012 | 101.3 | 33.2 | 75.0 | 73.9 | 72.8 | 146.7 | | 2013 | 94.6 | 22.3 | 75.0 | 75.8 | 74.6 | 150.4 | | 2014 | 64.8 | 7.2 | 105.3 | 86.3 | 81.8 | 168.1 | | 2015 | 99.1 | 25.7 | 76.8 | 76.8 | 77.6 | 154.4 | | 2016 | 75.5 | 8.6 | 74.5 | 74.5 | 77.7 | 152.2 |
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