Journal of Integrative Agriculture ›› 2015, Vol. 14 ›› Issue (12): 2456-2466.DOI: 10.1016/S2095-3119(15)61228-X

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Review grain yield and nitrogen use efficiency in rice production regions in China

 CHE Sheng-guo, ZHAO Bing-qiang, LI Yan-ting, YUAN Liang, LI Wei, LIN Zhi-an, HU Shu-wen, SHEN Bing   

  1. 1、Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning,
    Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
    2、College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R.China
    3、China Blue Chemical Ltd., Beijing 100029, P.R.China
  • 收稿日期:2015-08-20 出版日期:2015-12-01 发布日期:2015-12-16
  • 通讯作者: ZHAO Bing-qiang, Tel/Fax: +86-10-82108664,E-mail: zhaobingqiang@caas.cn
  • 作者简介:CHE Sheng-guo, E-mail: cheshengguo@caas.cn;
  • 基金资助:

    This research was supported by the Key Technologies R&D Program of China during the 12th Fvie-Year Plan period (2011BAD11B05).

Review grain yield and nitrogen use efficiency in rice production regions in China

 CHE Sheng-guo, ZHAO Bing-qiang, LI Yan-ting, YUAN Liang, LI Wei, LIN Zhi-an, HU Shu-wen, SHEN Bing   

  1. 1、Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning,
    Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
    2、College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R.China
    3、China Blue Chemical Ltd., Beijing 100029, P.R.China
  • Received:2015-08-20 Online:2015-12-01 Published:2015-12-16
  • Contact: ZHAO Bing-qiang, Tel/Fax: +86-10-82108664,E-mail: zhaobingqiang@caas.cn
  • About author:CHE Sheng-guo, E-mail: cheshengguo@caas.cn;
  • Supported by:

    This research was supported by the Key Technologies R&D Program of China during the 12th Fvie-Year Plan period (2011BAD11B05).

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摘要： As one of the staple food crops, rice (Oryza sativa L.) is widely cultivated across China, which plays a critical role in guaranteeing national food security. Most previous studies on grain yield or/and nitrogen use efficiency (NUE) of rice in China often involved site-specific field experiments, or small regions with insufficient data, which limited the representation for the current rice production regions. In this study, a database covering a wide range of climate conditions, soil types and field managements across China, was developed to estimate rice grain yield and NUE in various rice production regions in China and to evaluate the relationships between N rates and grain yield, NUE. According to the database for rice, the values of grain yield, plant N accumulation, N harvest index (HIN), indigenous N supply (INS), internal N efficiency (IEN), reciprocal internal N efficiency (RIEN), agronomic N use efficiency (AEN), partial N factor productivity (PEPN), physiological N efficiency (PEN), and recover efficiency of applied N (REN) averaged 7.69 t ha–1, 152 kg ha–1, 0.64 kg kg–1, 94.1 kg kg–1, 53.9 kg kg–1, 1.98 kg kg–1, 12.6 kg kg–1, 48.6 kg kg–1, 33.8 kg kg–1, and 39.3%, respectively. However, the corresponding values all varied tremendously with large variation. Rice planting regions and N rates had significant influence on grain yield, N uptake and NUE values. Considering all observations, N rates of 200 to 250 kg ha–1 commonly achieved higher rice grain yield compared to less than 200 kg N ha–1 and more than 250 kg N ha–1 at most rice planting regions. At N rates of 200 to 250 kg ha–1, significant positive linear relationships were observed between rice grain yield and AEN, PEN, REN, IEN, and PFPN, and 46.49, 24.64, 7.94, 17.84, and 88.24% of the variation in AEN, PEN, REN, IEN, and PFPN could be explained by grain yield, respectively. In conclusion, in a reasonable range of N application, an increase in grain yield can be achieved accompanying by an acceptable NUE.

关键词: rice , grain yield , nitrogen uptake , nitrogen use efficiency , China

Abstract: As one of the staple food crops, rice (Oryza sativa L.) is widely cultivated across China, which plays a critical role in guaranteeing national food security. Most previous studies on grain yield or/and nitrogen use efficiency (NUE) of rice in China often involved site-specific field experiments, or small regions with insufficient data, which limited the representation for the current rice production regions. In this study, a database covering a wide range of climate conditions, soil types and field managements across China, was developed to estimate rice grain yield and NUE in various rice production regions in China and to evaluate the relationships between N rates and grain yield, NUE. According to the database for rice, the values of grain yield, plant N accumulation, N harvest index (HIN), indigenous N supply (INS), internal N efficiency (IEN), reciprocal internal N efficiency (RIEN), agronomic N use efficiency (AEN), partial N factor productivity (PEPN), physiological N efficiency (PEN), and recover efficiency of applied N (REN) averaged 7.69 t ha–1, 152 kg ha–1, 0.64 kg kg–1, 94.1 kg kg–1, 53.9 kg kg–1, 1.98 kg kg–1, 12.6 kg kg–1, 48.6 kg kg–1, 33.8 kg kg–1, and 39.3%, respectively. However, the corresponding values all varied tremendously with large variation. Rice planting regions and N rates had significant influence on grain yield, N uptake and NUE values. Considering all observations, N rates of 200 to 250 kg ha–1 commonly achieved higher rice grain yield compared to less than 200 kg N ha–1 and more than 250 kg N ha–1 at most rice planting regions. At N rates of 200 to 250 kg ha–1, significant positive linear relationships were observed between rice grain yield and AEN, PEN, REN, IEN, and PFPN, and 46.49, 24.64, 7.94, 17.84, and 88.24% of the variation in AEN, PEN, REN, IEN, and PFPN could be explained by grain yield, respectively. In conclusion, in a reasonable range of N application, an increase in grain yield can be achieved accompanying by an acceptable NUE.

Key words: rice , grain yield , nitrogen uptake , nitrogen use efficiency , China