华北农学报 ›› 2002, Vol. 17 ›› Issue (1): 69-75. doi: 10.3321/j.issn:1000-7091.2002.01.015

所属专题: 小麦 土壤肥料 抗旱节水 高影响力文章

• 论文 • 上一篇    下一篇

水分和氮肥运筹对小麦氮素吸收分配的影响

李世娟1, 周殿玺2, 诸叶平1, 李建民2, 兰林旺2   

  1. 1. 中国农业科学院, 北京 100081;
    2. 中国农业大学, 北京 100094
  • 收稿日期:2001-02-10 出版日期:2002-03-28
  • 作者简介:李世娟(1975-),女,助理研究员,博士,主要从事黄淮海平原冬小麦氮肥施用及环境污染研究。
  • 基金资助:
    国家自然科学基金资助项目 (39570437)

Effects of Water and Nitrogen Application on Nitrogen Uptake and Distribution in Wheat

Li Shijuan1, Zhou Dianxi2, Zhu Yeping1, Li Jianmin2, Lan Linwang2   

  1. 1. China Agricultural Academy of Sciences, Beijing 100081, China;
    2. China Agriculture University, Beijing 100094, China
  • Received:2001-02-10 Published:2002-03-28

摘要: 试验结果表明,两种灌溉方法下各处理之间的产量不存在显著差异,与两水处理相比,四水处理公顷穗数提高,但拔节水导致千粒重极显著降低。四水条件下小麦的氮素吸收量高于两水条件下的相应氮肥处理,而氮素生理效率降低。灌四水使氮素在小麦营养器官中的分配比例提高,两水灌溉更有利于氮素向子粒转运。各营养器官对子粒氮的贡献率依次为叶片>茎秆=颖壳>叶鞘>根系,其中叶片的氮素转移量最高,两水灌溉制度下,常规施肥量适宜于部分基施、部分于拔节期追施,而省肥用量可以考虑全部基施。

关键词: 水分, 氮肥, 小麦, 吸收分配

Abstract: The results of experiments showed the yield of all treatments hacl no significant differences.The ear per ha increased under 4-time irrigation,but grain weight per 1000 decreased seriously.Thewheat irrigated Mime absorbed more N than that under 4-time irriganon which had the same N application,yet NPE decreased.With more w titer supply,the N distrihuted in vegetative organs was more than that in grain. After anthesis the N proportions transferred from various vegetable organs to the grains were ordered as leaf>stem= ear axis and grain husk>leaf sheath>root,among them leaf got the head of the others. Under Mime irrigation, some N rates should be used as base N, and the others were used as dressing N.However economical nitrogen rates might all be used as base N as well.

Key words: Water, Nitrogen, Wheat, Uptake and distribution

中图分类号: 

引用本文

李世娟, 周殿玺, 诸叶平, 李建民, 兰林旺. 水分和氮肥运筹对小麦氮素吸收分配的影响[J]. 华北农学报, 2002, 17(1): 69-75. doi: 10.3321/j.issn:1000-7091.2002.01.015.

Li Shijuan, Zhou Dianxi, Zhu Yeping, Li Jianmin, Lan Linwang. Effects of Water and Nitrogen Application on Nitrogen Uptake and Distribution in Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(1): 69-75. doi: 10.3321/j.issn:1000-7091.2002.01.015.

使用本文