Rhizobial Inoculation Increases Soil Microbial Functioning and Gum Arabic Production of 13-Year-Old Senegalia senegal (L.) Britton, Trees in the North Part of Senegal (original) (raw)

2016, Frontiers in Plant Science

AI-generated Abstract

Rhizobial inoculation has been shown to enhance plant growth and productivity in controlled conditions; however, its effects on mature trees in natural habitats are poorly understood. This study examines the influence of rhizobial inoculation on soil microbial biomass, mineral nitrogen content, CO2 respiration, and gum arabic production in 13-year-old Senegalia senegal trees in northern Senegal over two years. Results indicate that rhizobial inoculation significantly increased the percentage of gum arabic-producing trees, production per tree, and various soil microbial activities, although it did not significantly affect C mineralization or mineral nitrogen content. Positive correlations were observed between gum arabic production, rainfall, soil microbial biomass, and mineral nitrogen, highlighting the potential benefits of rhizobial inoculation in improving soil microbial function and local income through enhanced gum arabic production.