氮素形态对不同专用型小麦根系及氮素利用率影响的研究

应用生态学报 ›› 2004, Vol. ›› Issue (4): 655-658.

氮素形态对不同专用型小麦根系及氮素利用率影响的研究

马新明, 王志强, 王小纯, 王书丽

河南农业大学农学院, 郑州 450002

收稿日期:2002-09-02 修回日期:2003-07-21
通讯作者: 马新明,男,1963年生,博士,教授,主要从事作物生理生态和作物模型研究,发表论文50余篇.E-mail:xinmingma@371.net
基金资助:
国家863项目(2001AA115380);河南省高校科技人才创新工程资助项目(2002KJCX05)

Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses

MA Xinming, WANG Zhiqiang, WANG Xiaochun, WANG Shuli

College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China

Received:2002-09-02 Revised:2003-07-21

摘要/Abstract

摘要： 采用盆栽方法研究了3种氮素形态对不同专用型小麦根系及氮素利用率的影响.结果表明,拔节期以后,强筋型小麦豫麦34在酰胺态氮处理下,根系生物量、根系活力、氮素利用率、氮收获指数和籽粒蛋白质含量最高,铵态氮处理次之,硝态氮处理最低.中筋型小麦豫麦49的各测定指标以铵态氮处理最高,其它指标在酰胺态氮和铵态氮间的趋势不同;弱筋型小麦豫麦50在酰胺态氮处理下各项指标最高,而铵态氮处理下蛋白质含量最低,符合品种优质和专用.氮收获指数与籽粒蛋白质含量之间呈现极显著正相关.

关键词: 氮素形态, 专用型小麦, 根系, 氮素利用率

Abstract: A pot experiment showed that under NH₂-N treatment,strong gluten wheat Yumai 34 had the highest root biomass,root activity,N use efficiency,N harvest index and grain protein content,but all of these were the lowest under NO₃^--N treatment.For the medium gluten wheat Yumai 49,the items measured were the highest under NH₄⁺-N treatment,but not the same trend under NO₃^--N and NH₂-N treatments.For the weak gluten wheat Yumai 50,NH₄⁺-N treatment was the best for its top quality and specialized end-uses.There was a significant relationship between grain protein content and N harvest index.

Key words: Nitrogen form, Wheat with specialized end-uses, Root system, N use efficiency

中图分类号:

S143.1

马新明, 王志强, 王小纯, 王书丽. 氮素形态对不同专用型小麦根系及氮素利用率影响的研究[J]. 应用生态学报, 2004, (4): 655-658.

MA Xinming, WANG Zhiqiang, WANG Xiaochun, WANG Shuli. Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses[J]. Chinese Journal of Applied Ecology, 2004, (4): 655-658.

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