SDSU soil judging competes at the national level while teaching students real-world skills for their future career. The team ...

In addition, managing your mowing height (see below) can greatly improve root growth and in turn help to move organic matter deeper into the soil horizon. We’re in April. Nobody is thinking ...

A grey or light-coloured 'E' horizon is the result of severe leaching, or eluviation, which washes out everything but quartz grains. Eluviation is the removal of soil, clay, silt or fine organic ...

Soil organisms, like earthworms, mix the materials together, merging the boundaries between the horizons. These soils are leached, but not heavily, so the aluminium and iron oxides are dispersed ...