The fundamental components of the geologic structure are soil and sediments. Categorizing based on grain size and shape is an important stage in soil analysis in hydrology, sedimentology, and geology.

Agricultural soil testing is critical to determining soil’s nutrient concentration and variability across your fields. It is ideal to test your fields’ soil at least every two to three years to inform ...

The University of Delaware (UD) has rated soils in terms of the likelihood of profitable responses to additions of phosphorus (P) and potassium (K) from fertilizers, manures, and other soil amendments ...

Over three days in late March, four Los Angeles Times environment reporters and an editor fanned out across the Eaton and Palisades burn scars to collect 40 soil samples from residential properties: ...

For the best experience, please enable JavaScript in your browser settings. It is important that farmers sample soils correctly for the best test results. From my ...