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Reasonable Nitrogen Fertilizer Management Improves Rice Yield and Quality under a Rapeseed/Wheat–Rice Rotation System

Author

Listed:
  • Peng Ma

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 610000, China)

  • Yan Lan

    (College of Agronomy, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China)

  • Xu Lv

    (Rice Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China)

  • Ping Fan

    (Rice Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China)

  • Zhiyuan Yang

    (Rice Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China)

  • Yongjian Sun

    (Rice Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China)

  • Rongping Zhang

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 610000, China)

  • Jun Ma

    (Rice Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China)

Abstract

To determine the influence of N fertilizer management on rice yield and rice quality under diversified rotations and establish a high-yield, high-quality, and environmentally friendly diversified planting technology, a rapeseed/wheat–rice rotation system for 2 successive years was implemented. In those rotation systems, a conventional N rate (Nc; 180 kg/hm 2 N in rape season, 150 kg/hm 2 N in wheat season) and a reduced N rate (Nr; 150 kg/hm 2 N in rape season, 120 kg/hm 2 N in wheat season) were applied. Based on an application rate of 150 kg/hm 2 N in the rice season, three N management models were applied, in which the application ratio of base:tiller:panicle fertilizer was 20%:20%:60% in treatment M1, 30%:30%:40% in treatment M2, and 40%:40%:20% in treatment M3. Zero N was used as the control (M0). The results showed that, under Nc and Nr in the rape season, M3 management produced an increase in rice yield. The average rice yields in 2018 and 2019 were 9.41 t/hm 2 and 9.54 t/hm 2 , respectively. An increase in rice peak viscosity, hot viscosity, break disintegration, and chalkiness was achieved. Under Nc and Nr in the wheat season, the panicle fertilizer of 40%:40%:20% in rice season produced a higher rice yield. The average yield was 9.45 t/hm 2 and 9.19 t/hm 2 , respectively, and an increase in rice peak viscosity, hot viscosity, and break disintegration was produced. Reduced N for rapeseed and the panicle fertilizer of 40%:40%:20% in rice season under a rapeseed–rice rotation system can be recommended to stabilize yield and ensure high-quality rice production and environmentally friendly rapeseed–rice rotation systems in southern China.

Suggested Citation

  • Peng Ma & Yan Lan & Xu Lv & Ping Fan & Zhiyuan Yang & Yongjian Sun & Rongping Zhang & Jun Ma, 2021. "Reasonable Nitrogen Fertilizer Management Improves Rice Yield and Quality under a Rapeseed/Wheat–Rice Rotation System," Agriculture, MDPI, vol. 11(6), pages 1-14, May.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:6:p:490-:d:562069
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    References listed on IDEAS

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    1. JIA, Dong & LU, Jingjing & SUN, Yajun & SONG, Shuang & DU, Han & HAN, Lei, 2016. "Effect of Different Nitrogen Fertilizer Application Strategies on Rice Growth and Yield," Asian Agricultural Research, USA-China Science and Culture Media Corporation, vol. 8(01), pages 1-7, January.
    2. Wang, Jun & Wang, Dejian & Zhang, Gang & Wang, Yuan & Wang, Can & Teng, Ying & Christie, Peter, 2014. "Nitrogen and phosphorus leaching losses from intensively managed paddy fields with straw retention," Agricultural Water Management, Elsevier, vol. 141(C), pages 66-73.
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    Cited by:

    1. Alessandra Durazzo, 2021. "New Traits of Agriculture/Food Quality Interface," Agriculture, MDPI, vol. 11(12), pages 1-3, November.
    2. Kang Luo & Yongjun Zeng & Ziming Wu & Lin Guo & Xiaobing Xie & Qinghua Shi & Xiaohua Pan, 2022. "Nutrient Utilization and Double Cropping Rice Yield Response to Dense Planting with a Decreased Nitrogen Rate in Two Different Ecological Regions of South China," Agriculture, MDPI, vol. 12(6), pages 1-15, June.

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