Effects of Chloropicrin, Dimethyl Disulfide and Metham Sodium Applied Simultaneously on Soil-Born Bacteria and Fungi

The area used to grow high-value crops is currently decreasing because production in the same soil for many years increases soil-borne diseases that reduce crop yield and quality as well farmer income. Soil-borne disease effectively controlled by fumigation prior planting. In this study, five different types of soils had been tomatoes, watermelon, cucumber, ginseng ginger were collected from field plots with high incidence diseases. This experiment adopts indoor method conduct triple chloropicrin(PIC), metham sodium(MS) dimethyl disulfide(DMDS) on examine changes microbial community, including pathogenic fungi bacteria beneficial microorganisms order clarify impact overall structure community while controlling complex multiple pathogens. High-throughput gene sequencing was detect bacterial fungal taxonomic treated soils. Triple significantly reduced abundance at least kinds fungi, Fusarium oxysporum, Mortierella, Neocosmospora, Nitrospira Alternaria increased two species, Bacillus Trichoderma. research result observed decreases biodiversity richness response ginger. most significant effect experimental Panax notoginseng Wenshan, Yunnan. showed good potential decrease improve resistance soils, it has a application prospect disinfestation.