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Rice Straw Composting Improves the Microbial Diversity of Paddy Soils to Stimulate the Growth, Yield, and Grain Quality of Rice

Author

Listed:
  • Xingchen Huang

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China
    These authors contributed equally to this work.)

  • Hong Wang

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China
    These authors contributed equally to this work.)

  • Yuning Zou

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China)

  • Cece Qiao

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China)

  • Bing Hao

    (Bengbu Lv Du Straw Biotechnology Co., Ltd., Bengbu 233400, China)

  • Qingqin Shao

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China)

  • Wenge Wu

    (Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230041, China)

  • Hua Wu

    (Shexian Agricultural Machinery Promotion Center, Huangshan 245200, China)

  • Jianrong Zhao

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China)

  • Lantian Ren

    (Anhui Engineering Research Center for Smart Crop Planting and Processing Technology, Anhui Science and Technology University, Bengbu 233400, China
    Bengbu Lv Du Straw Biotechnology Co., Ltd., Bengbu 233400, China
    Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230041, China)

Abstract

This study aimed to explore the effects of straw compost with different proportions as replacement to chemical fertilizer on soil microorganisms as well as rice growth yield and quality. The rice variety Quan9you 063 in Fengyang, Anhui province was employed as the research subject. Four experimental treatments were set: local conventional fertilization as a control (CK) and compost substituting chemical fertilizer at 10% (T1), 20% (T2), and 30% (T3) to investigate the effects of straw composting. Our findings revealed that T1 treatment had the best rice yield-increasing effect ( p < 0.05). Compared with CK, the rice yield, grain number per panicle, and rice polishing rate increased by 6.43%, 21.60%, and 0.47%, respectively; the chalkiness and chalky grain rate decreased by 25.77% and 55.76%, respectively. The T1 treatment achieved significantly higher relative abundance of β-Proteobacteria, Sideroxydans , Methanoregula , and Candidatus Nitrosocosmicus , indicating that the compost replacing 10% chemical fertilizer notably increased the microbial diversity. Hence, the replacement of 10% of chemical fertilizers with compost can enhance the rice yield.

Suggested Citation

  • Xingchen Huang & Hong Wang & Yuning Zou & Cece Qiao & Bing Hao & Qingqin Shao & Wenge Wu & Hua Wu & Jianrong Zhao & Lantian Ren, 2023. "Rice Straw Composting Improves the Microbial Diversity of Paddy Soils to Stimulate the Growth, Yield, and Grain Quality of Rice," Sustainability, MDPI, vol. 15(2), pages 1-15, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:932-:d:1025038
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    References listed on IDEAS

    as
    1. Peng Fan & Jian Xu & Haiyan Wei & Guodong Liu & Zhenzhen Zhang & Jinyu Tian & Hongcheng Zhang, 2022. "Recent Research Advances in the Development of Chalkiness and Transparency in Rice," Agriculture, MDPI, vol. 12(8), pages 1-11, July.
    2. Liu, Beibei & Wu, Qiaoran & Wang, Feng & Zhang, Bing, 2019. "Is straw return-to-field always beneficial? Evidence from an integrated cost-benefit analysis," Energy, Elsevier, vol. 171(C), pages 393-402.
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