| 秸秆还田条件下灌水模式对冬小麦产量和水肥利用效率的影响 |
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| 作者姓名： | Dang JY Pei XX Zhang J Wang JA Cao Y Zhang DY |
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| 作者单位： | 山西省农业科学院小麦研究所,山西临汾,041000 |
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| 基金项目： | 现代农业产业技术体系建设专项(CARS-03); 国家公益性行业科研专项(200903010-07)资助 |
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| 摘 要： | 于2008-2010年,在山西省临汾市尧都区半干旱、半湿润季风气候区,通过大田试验研究了玉米秸秆连续还田条件下灌水模式对冬小麦籽粒产量、干物质转移及水肥利用效率的影响.结果表明:浇越冬水可促进小麦分蘖;浇拔节水可提高分蘖成穗率,增加成穗数;浇孕穗水可促进穗部干物质积累,提高千粒重.浇2水时,推迟第2次浇水时期使叶片干物质转移量和穗粒数增加;浇2水比浇l水的肥料表观利用率高,可促进穗部干物质积累.越冬水灌水量和总灌水量对分蘖、穗部干物质积累的影响较小;拔节期或孕穗期增加灌水量则更有利于养分吸收及干物质积累与转移,提高籽粒水分利用效率,产量构成因素协调,增产效果明显.因此,确保越冬水可实现稳产,在越冬水基础上,拔节期增量灌水(900 m3·hm-2)可满足冬小麦中后期生长发育的需要,提高籽粒水分利用效率,实现节水高产栽培.
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| 关 键 词： | 灌水模式 冬小麦 产量 水肥利用效率 高产栽培 |
Effects of irrigation mode on winter wheat yield and water- and nutrient use efficiencies under maize straw returning to field |
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| Dang JY,Pei XX,Zhang J,Wang JA,Cao Y,Zhang DY.Effects of irrigation mode on winter wheat yield and water- and nutrient use efficiencies under maize straw returning to field[J].Chinese Journal of Applied Ecology,2011,22(10):2511-2516. |
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| Authors: | Dang Jian-you Pei Xue-xia Zhang Jing Wang Jiao-ai Cao Yong Zhang Ding-yi |
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| Institution: | DANG Jian-you,PEI Xue-xia,ZHANG Jing,WANG Jiao-ai,CAO Yong,ZHANG Ding-yi (Wheat Research Institute,Shanxi Academy of Agricultural Sciences,Linfen 041000,Shanxi,China). |
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| Abstract: | In 2008-2010, a field experiment was conducted to study the effects of different irrigation modes on the grain yield, dry matter translocation, water use efficiency (WUE), and nutrient use efficiency (NUE) of winter wheat under maize straw returning to the field in a semi-arid and semi-humid monsoon region of Linfen, Shanxi Province of Northwest China. Irrigation at wintering time promoted tillering, irrigation at jointing stage increased the total tiller number and the fertile spike rate per tiller, wherea... |
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| Keywords: | irrigation mode winter wheat yield water- and nutrient use efficiency high-yielding cultivation |
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