Effects of rice-prawn (Macrobrachium nipponense) co-culture on the microbial community of soil

文献类型： 外文期刊

第一作者： Yang, Zhijing

作者： Yang, Zhijing;Feng, Yaming;Zhang, Shuanglin;Gu, Hailong;Gu, Zhengyan;Xv, Ye;Cai, Yingchun;Hu, Yuqi;Tang, Yueyao;Zhang, Hao;Hu, Yuqi;Tang, Yueyao;Zhang, Hao

作者机构：

关键词： Macrobrachium nipponense; Rice-prawn co-culture; Soil microbial community; Soil chemical property; Microbial network

期刊名称：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY （ 影响因子：5.56； 五年影响因子：5.365 ）

ISSN： 0175-7598

年卷期： 2022 年 106 卷 21 期

页码：

收录情况： SCI

摘要： In the Lixiahe region of China, co-culture has been rapidly promoted in flooded paddy fields owing to its ecological and economic benefits. Rice-prawn co-culture can reduce the damage of crab and shrimp to rice growth and paddy field and substantially change the soil microbial community and soil fertility. In this study, we compared changes in the soil microbial community and soil fertility in waterlogged paddies under conventional rice culture (CR), rice-prawn (Macrobrachium nipponense) co-culture (RP), and pond culture (PC). The microbial abundance in RP was significantly higher than that in CR. RP soil microbial diversity was significantly higher than PC soil microbial diversity. The dominant bacteria in RP soil were Proteobacteria, Chloroflexi, and Bacteroidetes. Compared with those in CR, total organic matter (TOM) and total nitrogen in RP were relatively stable, available potassium and available phosphorus (AP) decreased, and other indicators increased significantly. Soil fertility significantly benefited from co-culture, with total organic carbon (TOC) increasing. Interactive relationship analysis showed that TOM, TOC, AP, and NH4+-N were the main factors affecting the microbial community. Co-occurrence network analyses showed that network modularity increased with co-culture, indicating that a unique soil microbial community formed under co-culture, improving the adaptability and tolerance to co-culture. Thus, RP is a suitable culture method for this commercially important species. The results of this study can inform the practical operation of fertilizer use and sustainable development of rice-prawn aquaculture systems.

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