Eluviation is the removal of soil, clay, silt or fine organic matter in suspension from a soil horizon. The iron and aluminium oxides collect in the 'B' horizon where the iron oxides can ...

When European-American settlers first began ploughing in Iowa, they found the weather and local geology had combined this organic mulch with sand and silt to form a nutrient-rich type of soil ...

The relative ability of soils to store one particular group of nutrients, the cations, is referred to as cation exchange capacity or CEC. Soils are composed of a mixture of sand, silt, clay and ...

They also need good drainage to avoid becoming waterlogged. Loam or silt-based soils are ideal, providing the right mix of ...

Kerala government permits dredged soil from Vembanad Lake for NH 66 development, raising concerns about environmental and ...