The positive effects of biological control agents on soil nutrient availability and microbial community succession in Delonix regia

The primary objectives of this research are as follows: (1) to evaluate the effects of different fertilization practices on the variation of soil nutrient content in Delonix regia; (2) to explore how distinct fertilization methods influence the diversity and symbiotic interactions within the rhizosphere bacterial community, while assessing the ecological risks associated with BCA application; and (3) to identify and characterize the key environmental factors that govern the composition and dynamics of the soil bacterial community.