Lawrence Mayhew, chemist extraordinaire, is back by popular demand! This time, we explored how microbiology helps buffer toxin buildup in soil, with a strong focus on managing sodium through the soil’s microbial biome. As expected, humic substances took center stage in our discussion with a world-renowned expert in the field. Lawrence broke down the physical and biological damage sodium can inflict on soil, reinforcing EarthWorks' long-held belief that sodium and bicarbonates are the first major obstacles to healthy soil and plants. We also dove into his latest R&D efforts and the products he believes will help turf managers combat sodium more effectively. A conversation with Lawrence is always insightful, sometimes reflective, and even a little humorous!