Effects of Tillage and N Applications on the Cassava Rhizosphere Fungal Communities

Cassava (Manihot esculenta Crantz) is mainly cultivated in marginal land the south of China where seasonal drought stress occurs frequently and soil becomes more compact year by year. The study aimed to explore effect Fenlong tillage (FLT) combined with nitrogen applications on cassava rhizosphere particle composition fungal community diversity. Conventional (CT) was set as control. results indicated that contents clay silt were influenced method, (N), their interaction. There no difference richness diversity communities among all treatments 2019, while FLT lower than CT 2020. caused a stronger influence structure fungi N first differences reduced continuous cropping second top 10 dominant at class level found 2019 2020 Sordariomycetes, Dothideomycetes, Eurotiomycetes, Agaricomycetes, Intramacronucleata, norank_p__Mucoromycota, unclassified_p__Ascomycota, unclassified_k__Fungi, Pezizomycetes, Glomeromycetes, which had an important relationship pH, activity urease, available nitrogen, phosphorus, organic matter, clay. These created better environment for growth CT, thus promoting formation stable structures.