FIELD EVALUATION ON WATER PRODUCTIVITY OF WINTER WHEAT UNDER SPRINKLER OR SURFACE IRRIGATION IN THE NORTH CHINA PLAIN
FIELD EVALUATION ON WATER PRODUCTIVITY OF WINTER WHEAT UNDER SPRINKLER OR SURFACE IRRIGATION IN THE NORTH CHINA PLAIN
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华北平原喷灌或面灌冬小麦水分生产力田间评价
DOI：
10.1002/ird.1712
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发表时间：
2013-02-01
影响因子：
1.9
通讯作者：
Wang, Qing-Gai
中科院分区：
文献类型：
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作者：
Liu, Hai-Jun;Kang, Yaohu;Wang, Qing-Gai
在华北平原（NCP）进行了四季试验，评估喷灌和地面灌溉下冬小麦（Triticum aestivum L.）的作物产量和水分生产力。结果表明，喷灌田中冬小麦的叶面积指数（LAI）大于地表灌溉田，且有效叶面积持续时间更长。喷水灌溉田收获时的地上生物量比地表灌溉田高 4 倍，即 22.1%，同样，产量高出 11.5 倍，即 50.9%。产量较高主要是由于喷灌田1000粒的重量较大。喷灌田的季节性作物蒸散量（ET）比地表灌溉田低4倍，约为23%，水分生产率（WP）高18倍，约为57%，灌溉水生产率（IWP）高21倍，约为81%。采用广义线性模型对四个季节数据进行统计分析表明，喷灌方法显着提高了作物产量、WP和IWP，显着降低了作物ET。作物可湿性和可湿性也受到气候条件和农艺实践的显着影响。因此，推荐喷灌方式作为华北平原冬小麦品种的高效节水灌溉方式。版权所有 (c) 2013 John Wiley & Sons, Ltd.
A four-season experiment was carried out in the North China Plain (NCP) to evaluate crop yield and water productivity of winter wheat (Triticum aestivum L.) under sprinkler and surface irrigation. Results show that leaf area index (LAI) of winter wheat was greater and active leaf area lasted for longer in the sprinkler than in the surface irrigated field. Above-ground biomass at harvest was 4 similar to 22.1% greater in the sprinkler than in the surface irrigated field, similarly the yield was greater by 11.5 similar to 50.9%. The greater yield was mainly due to the greater weight of 1000 kernels in the sprinkler irrigated field. Seasonal crop evapotranspiration (ET) was lower by 4 similar to 23%, water productivity (WP) was higher by 18 similar to 57% and irrigation water productivity (IWP) was higher by 21 similar to 81% in the sprinkler field than in the surface irrigated field. Statistical analysis of four-season data by using a generalized linear model showed that the sprinkler irrigation method significantly increased crop yield, WP and IWP, and significantly decreased crop ET. Crop WP and IWP were also significantly affected by climate conditions and agronomic practices. Therefore, the sprinkler irrigation method was recommended as an efficient and water-saving irrigation method for winter wheat cultivars in the North China Plain. Copyright (c) 2013 John Wiley & Sons, Ltd.