Print this fact sheet by J.G. Davis and D. Whiting, Revised by H. Oleszak, E. Hammond, and J. Murgel (5/24) Quick Facts… On clayey soils, soil amendments improve the soil aggregation, increase porosity and permeability, and improve aeration, drainage, and rooting depth. On sandy soils, soil amendments increase the water and nutrient holding capacity. A … Continue reading Choosing a Soil Amendment – 7.235