植物营养与肥料学报2010,16(5)：1041-1048 Plant Nutrition and Fertilizer Science
不同灌水处理条件下不同小麦品种氮素
积累、分配与转移的差异王德梅"，于振文!*，张永丽'，许振柱？
（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；
2中国科学院植物研究所，植被与环境变化国家重点实验室，北京100093）
摘要：利用"N同位素示踪技术，研究了不间藻水处理条件下2个高产小麦品种吸收利用不同来源氮索的差异。结果表明：1)同一灌水条件下，秦山23（T23)植株氮素总积累量、来自肥料氮的量、来自土填氮的量、肥料氨和土壤氢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底摘水+拨节水处理（W1)营养器官中积累的肥料氮向子粒的转移量显著高于底水+拔节水+开花水处理（W2)，土壤氮的转移致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填氮的转移量均为W2显著高于W1 处理。3)泰山23的子粒蛋白质含量、谨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
蛋质含量、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
和氮索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。关键词：小麦；氮系积累分配；灌水量；氮素利用效率；水分利用效率
中图分类号：S512.1；S152.7
文献标识码：A
文章编号：1008-505X(2010)05-1041-08
Changes in nitrogen accumulation,distribution,translocationand nitrogenuse
efficiency in different wheat cultivars underdifferentirrigation conditions
WANG De-mei', YU Zhen-wen'', ZHANG Yong-li", XU Zhen-zhu?
(I Key Loboratory of Crop Ecophysiology and Cultivation, Ministry of Agriculture,
Shandong Agricultural Unitersity,Taian 271018,China;
2 State Key Loboratory of Vegetation and Ensironmental Change, Institute of Botany, CAS, Bejing 100093, China)
Abstract: Differences of nitrogen uptake and utilization in different wheat cultivars under different irrigation amount and at different stages were studied with "'N tracing technique. Three irrigation regimes were applied in the present experiment: no imigation during the whole growth season(represented as WO) ; irigated both before sowing and at jointing stages(W1); irigated 3 times, before sowing, at jointing and anthesis stages(W2).The results were as follows: under the same irrigation condition, total nitrogen accumulation amount, nitrogen accumulation amount de rived from fertilizer and soil of ev. T23 were higher than those of cv. S664. Nitrogen accumulation amount derived from fertilizer and soil in vegetative organs at anthesis, in grain and vegetative organs at maturity of cv. T23, were higher than those of cv. S664. The above results indicated that cv. T23 had higher nitrogen absorptive capacity than cv.S664.Nitrogen translocation amount from fertilizer in vegetative organs after anthesis at treatment W2 was lower than that at treatment W1, while nitrogen translocation amount from soil had no significant change. However, nitrogen translocation amount both from fertilizer and soil were remarkably increased at treatment W2 compared with
收稿日期：2009-12-25
接受日期：2010-03-20
基金项目：家白然科学基金项11(30871478）；农业部小麦现代农业产业技术体系项目（nyeytx-03）资助。作者简介：主德梅（1980-），女，山东济宁人，博土研究生，主要从事小麦高产高效生理生态研究工作。
Tel: 0538 8248219, E-mail; dmwang312@ 163, com
万方数据
通讯作者E-mail：yuzw@sdau.edu.cn