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Maize-peanut rotational strip intercropping improves peanut growth and soil properties by optimizing microbial community diversity

文献类型： 外文期刊

作者： Han, Yi 1 ; Dong, Qiqi 1 ; Zhang, Kezhao 1 ; Sha, Dejian 1 ; Jiang, Chunji 1 ; Yang, Xu 1 ; Liu, Xibo 1 ; Zhang, He 1 ; Wang, Xiaoguang 1 ; Guo, Feng 2 ; Zhang, Zheng 2 ; Wan, Shubo 2 ; Zhao, Xinhua 1 ; Yu, Haiqiu 1 ;

作者机构： 1.Shenyang Agr Univ, Coll Agron, Shenyang, Liaoning Provin, Peoples R China

2.Shandong Acad Agr Sci, Jinan, Shandong, Peoples R China

关键词： Rotational strip intercropping (RSI); Yield; Rhizosphere soil; Soil physical properties; Enzyme activities; 16S; ITS

期刊名称：PEERJ （ 影响因子：3.061； 五年影响因子：3.537 ）

ISSN： 2167-8359

年卷期： 2022 年 10 卷

页码：

收录情况： SCI

摘要： Rotational strip intercropping (RSI) of cereals and legumes has been developed and widely carried out to alleviate continuous cropping obstacles, to control erosion and to improve field use efficiency. In this study, a four-year fixed-field experiment was carried out in northeast China with three treatments: continuous cropping of maize, continuous cropping of peanuts and rotational strip intercropping of maize and peanut. The results show that crop rotation improved the main-stem height, branch number, lateral branch length, and yield and quality of peanuts; the yield was the highest in 2018, when it was increased by 39.5%. RSI improved the contents of total N, available N, total P, available P, total K and available K; the content of available N was the highest in 2018, with an increase of 70%. Rhizosphere soil urease and catalase activities were significantly increased and were the highest in 2017, reaching 183.13% and 91.21%, respectively. According to a high-throughput sequencing analysis, the rhizosphere soil bacterial richness and specific OTUs decreased in peanut rhizosphere soil, while the fungal increased. There were differences in the bacterial and fungal community structures; specifically, the abundance of Acidobacteria and Planctomycetes increased among bacteria and the abundance of beneficial microorganisms such as Ascomycota increased among fungi. In conclusion, rotational strip intercropping of maize and peanut increased the yield and quality of peanuts and conducive to alleviating the obstacles facing the continuous cropping of peanuts. Among then, soil physicochemical properties, enzyme activity and microbial diversity were significantly affected the yield of peanut.

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