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| 几种水氮模式处理下冬小麦冠层结构的差异 | |
| 引用本文： | 李志勇,郭永新,王璞,翟志席.几种水氮模式处理下冬小麦冠层结构的差异[J].麦类作物学报,2007,27(6):1085-10881095. |
| 作者姓名： | 李志勇 郭永新 王璞 翟志席 |
| 作者单位： | 1. 河南科技大学农学院,河南洛阳,471003 2. 中国农业大学农学与生物技术学院,北京,100094 3. 霍恩海姆大学,斯图加特,70599,德国 |
| 基金项目： | 中-德合作项目 , 国家自然科学基金 |
| 摘 要： | 为了给冬小麦水氮管理提供理论依据,以京冬8号为试验材料,采用随机区组设计,研究了4种水氮模式处理下冬小麦冠层结构的差异.结果表明,与传统水肥相比,传统灌溉-优化施肥的冬小麦株型较紧凑,植株高度相近,基部节间缩短,上3叶变短、变厚,总面积减少11.6%,叶倾角大,各层透光率高;优化灌溉-传统施肥的冬小麦株型松散,植株高度增加,基部节间差异小,上3叶变长、变薄,总面积增加14.1%,叶倾角小,各层透光率低;优化水肥与秸秆还田优化水肥株型稍松散,高度有所增加,基部节间缩短,上3叶长度有所增加,宽度有所减少,总面积分别减少2.3%和1.7%,叶倾角略减小,各层透光率略下降.与优化水肥相比,秸秆还田优化水肥有利于改善冬小麦冠层结构和光分布,但效果不明显. |
| 关 键 词： | 冬小麦 灌溉 施肥 冠层结构 模式处理 冬小麦 冠层结构 差异 N Fertilization Irrigation Models Different Winter Wheat Structures Canopy 效果 光分布 改善 面积分 宽度 长度 植株高度 秸秆还田 优化水肥 |
| 文章编号： | 1009-1041（2007）06-1085-04 |
| 收稿时间： | 2007-05-30 |
| 修稿时间： | 2007-05-302007-08-10 |
A Comparative Study of Canopy Structures of Winter Wheat under Different Models of Irrigation and N Fertilization |
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| MARION Boening Zilkens,LI Zhi-yong,GUO Yong-xin,WANG Pu,ZHAI Zhi-xi,MARION Boening Zilkens.A Comparative Study of Canopy Structures of Winter Wheat under Different Models of Irrigation and N Fertilization[J].Journal of Triticeae Crops,2007,27(6):1085-10881095. | |
| Authors: | MARION Boening Zilkens LI Zhi-yong GUO Yong-xin WANG Pu ZHAI Zhi-xi MARION Boening Zilkens |
| Institution: | 1.College of Agriculture,Henan University of Science and Technology,Luoyang,Henan 471003,China,2.College of Agronomy and Biotechnology,China Agricultural University,Beijing 100094,China,3.Hohenheim University,Stuttgart 70599,Germany |
| Abstract: | To give information on management of irrigation and N fertilization in winter wheat,the effects of four improved irrigation-fertilization models on canopy structure of winter wheat were investigated in a field experiment with a randomized complete block design.The results showed that,compared with traditional irrigation-traditional fertilization model,improved traditional irrigation-optimized fertilization model made plant type compact,phant height unifarmed,the bottom internode length decreased,the top three leaf blades short and thick,the total leaf area decreased by 11.6%,leaf tilt angle and the ratio of penetrated light at different heights increased.On the contrary,improved optimized irrigation-traditional fertilization model made plant type very loose,Plant height increased,the bottom internode length almost not changed,the top three leaf blades longer and thinner,the total leaf area increased by 14.1%,leaf tilt angle and the ratio of penetrated light at different heights decreased.The models of improved optimized irrigation-optimized fertilization and improved optimized irrigation-optimized fertilization with crop residues made plant type slightly loose,height increased a little,the bottom internode length decreased,the top three leaf blades longer and narrower,the total leaf area decreased by 2.3% and 1.7%,respectively,and leaf tilt angle and the ratio of penetrated light at different heights decreased slightly.Compared to the improved optimized irrigation-optimized fertilization,the improved optimized irrigation-optimized fertilization with crop residues improved canopy structure and light distribution of winter wheat,but the effect was not significant. |
| Keywords: | Winter wheat Irrigation fertilization Canopy structure |
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