Texture gradient is a prominent and ubiquitoud feature of Acrisol. The objective of this paper was to study the particle size distribution and mineralogy involved in the formation of the texture gradient of a subtropical soil in Rio Grande do Sul. Soil samples of a Red-Yellow Acrisol, formed on sedimentary parent material, were collected from trenches at two relief positions in an area of the Universidade Federal de Santa Maria, RS, Brazil. Soil samples were collected from profile 1, located […]