Combating Fusarium oxysporum in tobacco soils with black soldier fly larvae frass-based reductive soil disinfestation.

Autor: Liang, Yongjin, Qiu, Fangying, Tao, Yu, Peng, Bo, Zeng, Xiangnan, Zhang, Mingxing, Zhang, Qingzhuang, Li, Xin, Wei, Jianyu
Zdroj: Archives of Agronomy & Soil Science; Dec2024, Vol. 70 Issue 1, p1-16, 16p
Abstrakt: The pervasive issue of continuous monoculture in agricultural practices culminates in the proliferation of soil-borne pathogens. This study investigates the efficacy of Black Soldier Fly Larvae (BSFL) Hermetia illucens frass as a novel amendment for modifying the soil microbiome, particularly in tobacco fields plagued by continuous cropping challenges. Employing a pot incubation experiment within tobacco soils, we delved into the BSFL frass' impact on microbial community restructuring under both aerobic and anaerobic conditions, utilizing Illumina MiSeq technology for microbial and soil quality analysis. The addition of BSFL frass notably enhanced soil hydrolysable nitrogen, available potassium, and organic matter, concurrently reducing the relative abundance of Fusarium oxysporum to 0.8% and achieving a disinfestation rate of 100% with BSFL frass-based RSD treatments. These treatments significantly reduced soil bacterial and fungal richness and diversity, while augmenting disease-suppressive bacterial genera and families. The study further outlines the differential influences of soil conditions on microbial communities across treatments, with a metabolomics analysis underscoring the overarching positive impact on soil microbial metabolism. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index