| 不同灌水处理条件下不同小麦品种氮素积累、分配与转移的差异 |
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| 引用本文： | 王德梅,于振文,张永丽,许振柱. 不同灌水处理条件下不同小麦品种氮素积累、分配与转移的差异[J]. 植物营养与肥料学报, 2010, 16(5): 1041-1048. DOI: 10.11674/zwyf.2010.0501 |
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| 作者姓名： | 王德梅 于振文 张永丽 许振柱 |
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| 作者单位： | 1.山东农业大学农学院,农业部作物生理生态与栽培重点开放实验室,山东泰安 271018; |
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| 基金项目： | 国家自然科学基金，农业部小麦现代农业产业技术体系项目 |
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| 摘 要： | 利用15N同位素示踪技术,研究了不同灌水处理条件下2个高产小麦品种吸收利用不同来源氮素的差异。结果表明:1)同一灌水条件下,泰山23(T23)植株氮素总积累量、来自肥料氮的量、来自土壤氮的量、肥料氮和土壤氮开花期在营养器官中的总积累量及成熟期在子粒中的积累量均显著高于山农664(S664)。2)泰山23底墒水+拔节水处理(W1)营养器官中积累的肥料氮向子粒的转移量显著高于底墒水+拔节水+开花水处理(W2),土壤氮的转移量W1与W2处理无显著差异;山农664营养器官中积累的肥料氮和土壤氮的转移量均为W2显著高于W1处理。3)泰山23的子粒蛋白质含量、灌溉效益和水分利用效率为W1显著高于W2处理,子粒产量、蛋白质产量和氮素利用效率在W1与W2处理间无显著差异;山农664的子粒产量和蛋白质产量为W2显著高于W1处理,子粒蛋白质含量、氮素利用效率、灌溉效益和水分利用效率在W1与W2处理间无显著差异。从子粒产量、蛋白质含量和氮素与水分利用效率等方面综合分析,W1和W2处理分别是泰山23和山农664高产高效的灌水方式。
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| 关 键 词： | 小麦 氮素积累分配 灌水量 氮素利用效率 水分利用效率 |
| 收稿时间： | 2009-12-25 |
Changes in nitrogen accumulation, distribution, translocation and nitrogen use efficiency in different wheat cultivars under different irrigation conditions |
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| WANG De-mei,YU Zhen-wen,ZHANG Yong-li,XU Zhen-zhu. Changes in nitrogen accumulation, distribution, translocation and nitrogen use efficiency in different wheat cultivars under different irrigation conditions[J]. Plant Nutrition and Fertilizer Science, 2010, 16(5): 1041-1048. DOI: 10.11674/zwyf.2010.0501 |
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| Authors: | WANG De-mei YU Zhen-wen ZHANG Yong-li XU Zhen-zhu |
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| Affiliation: | 1.Key Laboratory of Crop Ecophysiology and Cultivation,Ministry of Agriculture,Shandong Agricultural University,Taian 271018,China; |
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| Abstract: | Differences of nitrogen uptake and utilization in different wheat cultivars under different irrigation amount and at different stages were studied with 15N tracing technique.Three irrigation regimes were applied in the present experiment: no irrigation during the whole growth season(represented as W0);irrigated both before sowing and at jointing stages(W1);irrigated 3 times,before sowing,at jointing and anthesis stages(W2).The results were as follows: under the same irrigation condition,total nitrogen accum... |
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| Keywords: | wheat cultivar nitrogen accumulation and distribution irrigation regimest nitrogen use efficiency water use efficiency |
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