| 水肥耦合对冬小麦产量及其构成因素的影响 |
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| 引用本文： | 郑志松,王建敏.水肥耦合对冬小麦产量及其构成因素的影响[J].河南农业科学,2012,41(8):26-33. |
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| 作者姓名： | 郑志松 王建敏 |
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| 作者单位： | 1. 河南省农业广播电视学校,河南郑州,450008
2. 河南省植物保护植物检疫站,河南郑州,450002 |
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| 基金项目： | 农业部公益性行业科研专项 |
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| 摘 要： | 为了解不同水、肥条件下冬小麦的光合特性及产量变化,2009-2011年在洛阳农林科学院以洛旱2号小麦为材料,采用防雨棚池栽种植方式,研究了不同灌水量、施氮和施磷量及其互作对冬小麦产量及其构成因素的影响。结果表明:灌水量对冬小麦产量及其构成因素的调控效应极显著(P≤0.01)。随灌水量增加,总茎数及最终成穗数增加,越冬及拔节期总茎数在灌水量282.0mm时最大,2a平均分别为715.6万、965.9万茎/hm2,最终成穗数在灌水量308.5mm时最大,2a平均值为403.0万穗/hm2;穗粒数及产量在灌水量308.5mm时达最大,2a平均分别为29.2粒和5 934.0kg/hm2,千粒重在灌水量282.0mm时最大,2a平均值46.3g。在施氮量30.8～179.2kg/hm2,总茎数随施氮量增加呈上升趋势;产量在0～105.0kg/hm2间呈增加趋势。从水肥耦合的效应看,N179.2P126W282处理组合对总茎数的调控效应较大,产量以N105P42W308.5处理组合最大,千粒重以N30.8P126W282处理组合最大。
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| 关 键 词： | 冬小麦 水肥耦合 总茎数动态 产量及构成因素 |
Combining Influence of Irrigation and Fertilizer on Grian Yield and Its Components of Winter Wheat |
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| ZHENG Zhi-song
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WANG Jian-min.Combining Influence of Irrigation and Fertilizer on Grian Yield and Its Components of Winter Wheat[J].Journal of Henan Agricultural Sciences,2012,41(8):26-33. |
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| Authors: | ZHENG Zhi-song WANG Jian-min |
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| Institution: | 1.Henan Agricultural Broadcasting and Television College,Zhengzhou 450008,China; 2.Henan Province Plant Protection and Plant Puarantine Station,Zhengzhou 450002,China) |
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| Abstract: | The winter wheat cultivar Luohan 2 was used in the field experiment conducted in Luo-yang under rain-shelter condition during 2009-2010 and 2010-2011 cropping seasons.The objective of the experiment was to evaluate the effects of irrigation and nitrogen/phosphorus fertilization on grain yield and its components of winter wheat in the semiarid region of west Henan province.The experiment was a factorial combination of 5 irrigation,nitrogen and phosphorusapplication rates,each in 3 replicas.The results indicated that irrigation had significant effects on grain yield and its components(P≤0.01) of winter wheat.Both the culm population and ear number increased with the enhance of irrigation amount.The culm population at wintering and jointing stage got the largest values(715.6×104 and 965.9×104 per hectare,respectively) in irrigation treatment of 282.0 mm,and ear number reached the highest value(403.0×104 per hectare,averaged for two years’ data) at irrigation amount of 308.5 mm.Grain number per ear and grain yield reached the highest values(29.2 grains and 5 934.0 kg/ha,respectively) at irrigation amount of 308.5 mm,while thousand kernel weight(TKW) got the highest value(46.3 g) at irrigation amount of 282.0 mm.The culm population increased with the nitrogen application improvement from 30.8 kg/ha to 179.2 kg/ha.Grain yield increased when nitrogen application increased from 0 kg/ha to 105.0 kg/ha.The treatment N179.2P126W282 obtained the largest culm popu-lation,the treatment N105P42W308.5 got the largest values for grain yield,and the treatment N30.8P126W282 had the highest TKW. |
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| Keywords: | winter wheat water and fertilizer interaction dynamic culm population grain yield and yield components |
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