华北农学报 ›› 2008, Vol. 23 ›› Issue (1): 154-157. doi: 10.7668/hbnxb.2008.01.034

所属专题: 玉米 土壤肥料 高影响力文章

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不同氮肥管理对春玉米干物质生产、分配及转运的影响

戴明宏, 陶洪斌, 王利纳, 王璞   

  1. 中国农业大学 农学与生物技术学院 农业部作物栽培与耕作学重点开放实验室,北京 100094
  • 收稿日期:2007-11-18 出版日期:2008-02-28
  • 通讯作者: 王璞(1957-),男,山西朔州人,教授,博士生导师,主要从事作物高产栽培与资源高效利用研究。
  • 作者简介:戴明宏(1981-),男,安徽长丰人,博士研究生,主要从事作物高产栽培与资源高效利用研究。
  • 基金资助:
    国家自然科学基金项目(30571089)

Effects of Different Nitrogen Managements on Dry Matter Accumulation, Partition and Transportation of Spring Maize(Zea mays L.)

DAI Ming-hong, TAO Hong-bin, WANG Li-na, WANG Pu   

  1. College of Agronomy and Biotechnology, China Agricultural University, Key Laboratory of Crop Cultivation and Farming System, Ministry of Agriculture, Beijing 100094, China
  • Received:2007-11-18 Published:2008-02-28

摘要: 为探索华北地区春玉米高产可持续栽培技术,研究了不同氮素管理(不施氮、推荐施氮、经验施氮)对春玉米的干物质积累、分配及转运的影响。结果表明,在高肥力土壤条件下,第一年推荐和经验施氮同不施氮相比在干物质积累、叶面积指数、籽粒产量、穗位叶光合速率等方面都没有起到明显的促进作用,但在第二年不施氮处理产量比推荐施氮和经验施氮分别下降了12.0%和11.6%。推荐施氮的优势不仅体现在减少氮肥投入的前提下保持产量的稳定,同时也明显促进了生育后期植株营养体干物质向籽粒的转运,各器官干物质转运总量占籽粒总干质量的22.1%,比经验施氮高6.1%。

关键词: 春玉米, 干物质分配, 干物质转运

Abstract: The objective of this study is to provide a technique for high2yielding spring maize cultivation by analyzingeffects of different nitrogen managements on dry matter accumulation,partition and transportation. There are three nitrogenmanagements:Zero nitrogen fertilization(ZNF),Recommended nitrogen fertilization(RNF),Traditional nitrogen fertiliza2tion(TNF). The results showed that neither RNF nor TNF could obviously improve dry matter accumulation,LAI,ear2leave photosynthetic rate and grain yield in the first year. However,in the second year,ZNF achieved yield reduction of1210 % and 1116 % comparing with RNF and TNF respectively. Furthermore,RNF could not only reduce nitrogen input,but also improve dry matter transportation from other organs to grain,the proportion of which reached 2211 %,and was611 % higher than TNF.

Key words: Spring maize, Dry matter partition, Dry matter transportation

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引用本文

戴明宏, 陶洪斌, 王利纳, 王璞. 不同氮肥管理对春玉米干物质生产、分配及转运的影响[J]. 华北农学报, 2008, 23(1): 154-157. doi: 10.7668/hbnxb.2008.01.034.

DAI Ming-hong, TAO Hong-bin, WANG Li-na, WANG Pu. Effects of Different Nitrogen Managements on Dry Matter Accumulation, Partition and Transportation of Spring Maize(Zea mays L.)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 154-157. doi: 10.7668/hbnxb.2008.01.034.

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