Chloropicrin alternated with dazomet improved the soil's physicochemical properties, changed microbial communities and increased strawberry yield

文献类型： 外文期刊

第一作者： Li, Qingjie

作者： Li, Qingjie;Zhang, Daqi;Cheng, Hongyan;Song, Zhaoxin;Ren, Lirui;Hao, Baoqiang;Zhu, Jiahong;Fang, Wensheng;Yan, Dongdong;Li, Yuan;Wang, Qiuxia;Cao, Aocheng;Yan, Dongdong;Li, Yuan;Wang, Qiuxia;Cao, Aocheng

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关键词： Chloropicrin alternated with dazomet; Soil physicochemical properties; Soil-borne pathogens; Strawberry yield; Soil bacteria; Soil fungi

期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）

ISSN： 0147-6513

年卷期： 2021 年 220 卷

页码：

收录情况： SCI

摘要： Chloropicrin (Pic) and dazomet (DZ) are effective soil fumigants that are often used to reduce soil-borne pathogens that would otherwise reduce crop yield. As Pic is scheduled to be banned, we investigated whether its consumption could be halved by alternating it with DZ. We observed that Pic alternated with DZ increased the soil NH4+-N content by 28.74-47.07 times, increased available potassium content by 40.80%-46.81% and increased electrical conductivity by 39.23%-85.81%. It generally improved the soil's physicochemical properties. High-throughput DNA sequencing showed that Pic alternated with DZ changed the taxonomic diversity of bacteria and fungi by increasing the relative abundance of Bacillus and Firmicutes, and by decreasing Proteobacteria, Acidobacteria and Sphingomonas. Moreover, Pic alternated with DZ can inhibit key soil pathogens by more than 90% and significantly increased strawberry yield by 78.22%-116.12%. In terms of strawberry production, we recommend using DZ in the first year and Pic in the second year. Our results showed significant ecological benefit and yield benefit when Pic consumption was halved by alternating it with DZ.

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