欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2004, Vol. ›› Issue (3): 453-457.

• 研究论文 • 上一篇    下一篇

水氮运筹对干旱年型冬小麦旗叶生理性状及产量的交互效应

郭天财, 冯伟, 赵会杰, 王化岑, 王永华, 夏国军, 马冬云   

  1. 河南农业大学国家小麦工程技术研究中心, 郑州 450002
  • 收稿日期:2002-09-19 修回日期:2003-03-04
  • 通讯作者: 郭天财,男,1953年出生,河南农业大学作物栽培学与耕作学国家级重点学科教授,博导,主要从事小麦栽培生理研究,发表论文68篇.Tel:0371-3558201,E-mail:gmzx-guo@71.net
  • 基金资助:
    国家重点基础研究发展规划项目(G2000077900);国家“十五”重大科技攻关资助项目(2001BA507A02)

Interactive effect of irrigation and nitrogen application on physiological characteristics of flag leaf and grain yield of winter wheat in dry years

GUO Tiancai, FENG Wei, ZHAO Huijie, WANG Huacen, WANG Yonghua, XIA Guojun, MA Dongyun   

  1. National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450002, China
  • Received:2002-09-19 Revised:2003-03-04

摘要: 在大田条件下,探讨了不同灌水和施氮处理对冬小麦叶片生长、生理特性及产量性状的影响.结果表明,干旱年型条件下灌水和氮肥增产效应均显著,但灌水增产潜力更大.灌水两次(拔节和孕穗水),产量较高;灌水3次(拔节、孕穗和灌浆水)增产效果并不明显,氮肥全部底施产量下降.水分胁迫影响肥效发挥,降低产量,但可通过增加施氮量得到弥补.只有水氮合理搭配,才能有效协调各产量构成因素的关系,提高单位面积产量.

关键词: 冬小麦, 干旱年型, 水氮运筹, 生理性状, 交互效应, 产量性状

Abstract: The field studies indicated that in dry years,both irrigation and nitrogen application had a marked yield increment effect,but irrigation played a more important role.Irrigation at jointing and booting stages could induce a higher grain yield,but irrigation at jointing,booting and grain-filling stages had a less yield increment effect if nitrogen was applied as base fertilizer.Insufficient irrigation reduced the nitrogen efficiency and yield,which could be compensated to some extent by increasing the nitrogen application rate.Only a suitable combination of irrigation and nitrogen application could effectively coordinate the relationship between yield components and increase grain yield.

Key words: Winter wheat, Dry year, Irrigation and nitrogen application, Physiological characteristics, Interactive effects, Yield factors

中图分类号: