华北农学报 ›› 2001, Vol. 16 ›› Issue (3): 86-91. doi: 10.3321/j.issn:1000-7091.2001.03.017

所属专题: 小麦 土壤肥料 高影响力文章

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限水灌溉下不同氮肥用量对小麦产量及氮素分配利用的影响

李世娟1, 周殿玺2, 李建民2   

  1. 1. 中国农科院, 北京 100081;
    2. 中国农业大学农学系, 北京 100094
  • 收稿日期:2000-01-25 出版日期:2001-09-28
  • 作者简介:李世娟,(19- ),女,讲师,农学博士,主要从事冬小麦节水高产栽培研究。
  • 基金资助:
    国家自然科学基金项目(39570437)

Effect of Different Nitrogen Application on Yield,Nitrogen Distribution and Utilization in Winter Wheat Under Soil Water Stress

LI Shijuan1, ZHOU Dianxi2, LI Jianmin2   

  1. 1. Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2. China Agricultural University, Beijing 100094, China
  • Received:2000-01-25 Published:2001-09-28

摘要: 研究了限水灌溉下不同氮肥用量对冬小麦产量和氮素分配利用的影响。结果表明:氮肥利用率随氮肥量的递增而降低,施225kg/hm2纯氮处理达到最高产量,在此基础上增施氮肥产量下降;随着施氮量的增加,植株体内的氮素较多地分配于营养器官,地上部器官叶片占的比例最大,而收获指数依次降低。

关键词: 限水灌溉, 氮肥, 产量, 氮素利用

Abstract: The field experiment on ef fect of dif ferent nitrogen applicat ion on y ield, nit rogen distr-ibution and utilizat ion in water wheat under water stress has been processed in Hebei province where is serious dry area from 1997 to 1998. The results show that with the increase of N application, nitrogen utilization efficiency decreased, the treatment ( 225 kg/ha) arrived the highest y ield,and the yield of other treatments applied over the rate decreased. With the increase of N application, N absorbed was mainly distributed in nutrition orgens of plant s in which leaf had the biggestratio. At the same time the harvest index declined in turn.

Key words: Water stress, Fertilizer, Yield, Nitrogen utilizat ion

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引用本文

李世娟, 周殿玺, 李建民. 限水灌溉下不同氮肥用量对小麦产量及氮素分配利用的影响[J]. 华北农学报, 2001, 16(3): 86-91. doi: 10.3321/j.issn:1000-7091.2001.03.017.

LI Shijuan, ZHOU Dianxi, LI Jianmin. Effect of Different Nitrogen Application on Yield,Nitrogen Distribution and Utilization in Winter Wheat Under Soil Water Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(3): 86-91. doi: 10.3321/j.issn:1000-7091.2001.03.017.

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