Acta Agrestia Sinica ›› 2015, Vol. 23 ›› Issue (2): 231-236.DOI: 10.11733/j.issn.1007-0435.2015.02.002

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Application Prospect of Critical Nitrogen Concentration Dilution Model in Grass Seed Production

CHEN Ling-ling1,2, MAO Pei-sheng1, WANG Ming-ya1, WANG Hui1, ZHENG Hui-min1, CHEN Quan-zhu1, YAN Hui-fang1   

  1. 1. Department of Grassland Science, China Agricultural University, Beijing Key Laboratory of Grassland Science, Beijing 100193, China;
    2. Chifeng Academy of Agricultural and Animal Sciences, Institute of Grassland Research, Chifeng, Inner Mongolia 024031, China
  • Received:2014-08-04 Revised:2015-01-14 Online:2015-04-15 Published:2015-03-25

临界氮浓度稀释模型在牧草种子生产中的应用前景

陈玲玲1,2, 毛培胜1, 王明亚1, 汪辉1, 郑慧敏1, 陈泉竹1, 闫慧芳1   

  1. 1. 中国农业大学草业科学系 草业科学北京市重点实验室, 北京 100193;
    2. 赤峰市农牧科学研究院草原研究所, 内蒙古 赤峰 024031
  • 通讯作者: 毛培胜
  • 作者简介:陈玲玲(1982-),女,蒙古族,内蒙古赤峰人,博士生,研究方向为牧草种子生理与良种扩繁,E-mail:chenlingling001@126.com
  • 基金资助:

    现代牧草产业技术体系(CARS-35)资助

Abstract:

Nitrogen is one of the key nutritional elements to determine the level of grass seed yields. The additional nitrogen supplying is beneficial for plant tillering, dry matter production, inflorescence formation and the dynamic changes of the yield components. In this paper, the conception, methods, research status and the application of critical nitrogen concentration dilution model have been reviewed, and the existing problems of its application in practical production were put forwarded. Finally, the application prospect of critical nitrogen concentration dilution model in the grass seed production were also prospected.

Key words: Grass seed, Nitrogen, Critical nitrogen concentration, Critical nitrogen dilution curve, Dilution model

摘要:

氮素是影响牧草种子产量的关键因素,氮素对于植株分蘖、干物质生产、花序形成、产量组分动态变化等均具有影响.文章主要从临界氮浓度稀释模型的概念、构建方法、研究现状、应用等方面进行了综述,提出临界氮浓度稀释模型在实际生产中应用时存在的问题,并对其在牧草种子生产中的应用前景进行了展望.

关键词: 牧草种子, 氮素, 临界氮浓度, 临界氮稀释曲线, 稀释模型

CLC Number: