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

文献类型： 外文期刊

作者： Huang, Xingchen 1 ; Wang, Hong 1 ; Zou, Yuning 1 ; Qiao, Cece 1 ; Hao, Bing 2 ; Shao, Qingqin 1 ; Wu, Wenge 3 ; Wu, Hua 4 ; Zhao, Jianrong 1 ; Ren, Lantian 1 ;

作者机构： 1.Anhui Sci & Technol Univ, Anhui Engn Res Ctr Smart Crop Planting & Proc Tech, Bengbu 233400, Peoples R China

2.Bengbu Lv Du Straw Biotechnol Co Ltd, Bengbu 233400, Peoples R China

3.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230041, Peoples R China

4.Shexian Agr Machinery Promot Ctr, Huangshan 245200, Peoples R China

关键词： rice straw compost; soil microbial diversity; rice; grain yield

期刊名称：SUSTAINABILITY （ 影响因子：3.9； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 15 卷 2 期

页码：

收录情况： SCI

摘要： 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 beta-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.

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