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Optimizing Planting Density, Irrigation, and Nitrogen Application Can Improve Rapeseed Yield in Xinjiang’s Aksu by Reducing the Lodging Rate

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  • Wenbo Guo

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China
    These authors contributed equally to this work.)

  • Haifeng Li

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China
    These authors contributed equally to this work.)

  • Silayiding Simayi

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China)

  • Yunmeng Wen

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China)

  • Qingyong Bian

    (Baicheng Agricultural Experimental Station, Xinjiang Academy of Agricultural Sciences, Ürümqi 842300, China)

  • Jinquan Zhu

    (Baicheng Agricultural Experimental Station, Xinjiang Academy of Agricultural Sciences, Ürümqi 842300, China)

  • Zhigang Liu

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China)

  • Hanming Su

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China)

  • Yanhong Wei

    (Baicheng Agricultural Experimental Station, Xinjiang Academy of Agricultural Sciences, Ürümqi 842300, China)

  • Guohong Liu

    (Institute of Turpan Academy of Agricultural Sciences, Xinjiang Academy of Agricultural Sciences, Ürümqi 838000, China)

  • Yanbo Fu

    (Baicheng Agricultural Experimental Station, Xinjiang Academy of Agricultural Sciences, Ürümqi 842300, China)

Abstract

This study aimed to investigate the effects of planting density, irrigation volume, and nitrogen application on the resistance of rapeseed to lodging and yield and to provide technical support for achieving high yield and lodging resistance. We employed an L 9 (3 4 ) orthogonal array, different planting densities, irrigation levels, and nitrogen applications to investigate their impact on rapeseed lodging and yield. The results showed the following: (1) Irrigation had the greatest effect on rapeseed lodging. This effect was most pronounced for the combination (A3B3C2), which exhibited the most severe lodging phenomenon (90%). Planting density had the greatest effect on yield, and the optimal combination was A2B2C3, which reached 3744 kg/hm 2 in 2023 and 3420 kg/hm 2 in 2024. (2) The agronomic practices increased the content of lignin, cellulose, hemicellulose, crude fiber, pectin, and soluble sugar fractions in the stalks by enhancing their flexural, puncture, and stress resistance. This led to the highest yield while reducing the rate of lodging. This emphasizes the importance of agricultural practices for rapeseed lodging and yield, providing critical insights into rapeseed cultivation in the Aksu region of Xinjiang.

Suggested Citation

  • Wenbo Guo & Haifeng Li & Silayiding Simayi & Yunmeng Wen & Qingyong Bian & Jinquan Zhu & Zhigang Liu & Hanming Su & Yanhong Wei & Guohong Liu & Yanbo Fu, 2024. "Optimizing Planting Density, Irrigation, and Nitrogen Application Can Improve Rapeseed Yield in Xinjiang’s Aksu by Reducing the Lodging Rate," Sustainability, MDPI, vol. 16(20), pages 1-21, October.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:20:p:9119-:d:1503288
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    References listed on IDEAS

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    1. Jing, Bing & Shah, Farooq & Xiao, Enshi & Coulter, Jeffrey A. & Wu, Wei, 2020. "Sprinkler irrigation increases grain yield of sunflower without enhancing the risk of root lodging in a dry semi-humid region," Agricultural Water Management, Elsevier, vol. 239(C).
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