Argillic Horizon is a Missouri Non-Profit dedicated to exploring nutrition from the ground up. An argillic horizon is also a layer of nutrient rich white clay beneath much of the world's farm land. In a healthy forest, orchard, farm, or garden, the plants can access those nutrients. Tilling and chemical pollution can limit crops' access to the argillic horizon, and erosion can expose it and then destroy it. Regenerative farming intends to keep it protected and accessible. We are conducting studies of the effects of soil management and reclamation efforts on the nutrient density of crops. We post videos describing experiments and results to our YouTube channel, Argillic Horizon. https://www.youtube.com/channel/UClHrs9EDoxupAGV5IWY5YeQ