From September 19th to 21st, the 2024 Annual Academic Conference of the Soil Fertility and Fertilizer Committee of the Soil Science Society of China (SSSC) & the 13th 3rd Council Expansion Meeting of the Hunan Soil and Fertilizer Society were held in Changsha, Hunan Province, which focused on the theme of arable land health and food security in subtropical regions. Professor Gang Wang was invited to give a plenary talk entitled “Soil microbial interfacial processes to bio-nano-functional materials”.