[1]曹强,田兴帅,马吉锋,等.中国三大粮食作物临界氮浓度稀释曲线研究进展[J].南京农业大学学报,2020,43(3):392-402.[doi:10.7685/jnau.201907005]
 CAO Qiang,TIAN Xingshuai,Ma Jifeng,et al.Research progress in critical nitrogen dilution curve of three main grain crops in China[J].Journal of Nanjing Agricultural University,2020,43(3):392-402.[doi:10.7685/jnau.201907005]
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中国三大粮食作物临界氮浓度稀释曲线研究进展()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
43卷
期数:
2020年3期
页码:
392-402
栏目:
综述
出版日期:
2020-05-10

文章信息/Info

Title:
Research progress in critical nitrogen dilution curve of three main grain crops in China
作者:
曹强 田兴帅 马吉锋 姚霞 刘小军 田永超 曹卫星 朱艳
南京农业大学国家信息农业工程技术中心/农业农村部农作物系统分析与决策重点实验室/江苏省信息农业重点实验室/江苏省物联网技术与应用协同创新中心, 江苏 南京 210095
Author(s):
CAO Qiang TIAN Xingshuai Ma Jifeng YAO Xia LIU Xiaojun TIAN Yongchao CAO Weixing ZHU Yan
National Engineering and Technology Center for Information Agriculture/Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture and Rural Affairs/Jiangsu Key Laboratory for Information Agriculture/Jiangsu Collaborative Center for the Technology and Application of Internet of Things, Nanjing Agricultural University, Nanjing 210095, China
关键词:
粮食作物临界氮浓度稀释曲线氮营养指数
Keywords:
grain cropscritical nitrogen dilution curvenitrogen nutrition index
分类号:
S311
DOI:
10.7685/jnau.201907005
摘要:
氮素是粮食作物产量形成的重要元素之一,快速准确诊断作物氮素营养状况是进行精确氮肥管理的前提,而氮素营养诊断指标是制约其发展的关键因素。临界氮浓度稀释曲线是作物临界氮浓度(作物获得最大干物质所需要的最小氮浓度)与作物植株干物质的幂函数关系,基于临界氮浓度稀释曲线获得的氮营养指数被广泛应用到作物氮素营养诊断中。随着研究的深入,研究者先后基于植株干物质、叶片干物质、叶面积指数等建立了临界氮浓度稀释曲线,提高了作物氮素营养诊断的效率和精度。本文综述了我国三大粮食作物(小麦、玉米、水稻)临界氮浓度稀释曲线的构建、影响曲线参数的因素以及氮营养指数的获取与应用,为临界氮浓度稀释曲线的研究与应用提供理论支撑。
Abstract:
Nitrogen is a one of the decisive elements in the yield formation of grain crops,rapid and accurate diagnosis of crop nitrogen nutrition status is a prerequisite of precision nitrogen fertilization management,while diagnostic indicators are key factors restricting its development. The critical nitrogen dilution curve is a power function relationship between crop critical nitrogen concentration(the minimum nitrogen concentration required to achieve maximum crop dry matter)and plant dry matter(PDM). The nitrogen nutrition index derived from the dilution curve has been widely used in diagnosing crop nitrogen nutrition status. With the development of research,the critical nitrogen dilution curves based on PDM,leaf dry matter,and leaf area index have been established by the researchers respectively,which improve the efficiency and accuracy of crop nitrogen nutrition diagnosis. This paper reviews the construction of critical nitrogen dilution curves,the influencing factors of curve parameters,the acquisition and application of nitrogen nutrition index for three major grain crops(wheat,maize,rice)in China,and provides theoretical support for the research and application in the future.

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备注/Memo

备注/Memo:
收稿日期:2019-07-04。
基金项目:国家重点研发计划项目(2016YFD0300608);国家自然科学基金青年基金项目(31601222);中央高校基本科研业务费专项资金(KYZ201502,KJQN201725);江苏省自然科学基金青年基金项目(BK20150663)
作者简介:曹强,副教授,主要从事农作精确管理研究,E-mail:qiangcao@njau.edu.cn。
通信作者:朱艳,教授,主要从事信息农业研究,E-mail:yanzhu@njau.edu.cn。
更新日期/Last Update: 1900-01-01