Humus can hold more water
They are rich in humus and are very fertile. They are also rich in potassium and highly suitable for agriculture.
in GENERAL a humus rich soil is better for plant growth, but it is dependant on the type of plant - e.g. plants that grow at the coast are at home in very sandy soils.
Podzol is a term given to soils that are infertile and have a light-brown color due to poor humus. Chernozem is a term given to soils that are rich in humus and thus are fertile. In addition, they have a black color because of the rich humus.
Fertile
Loam is a general term applied to soil that has relatively equal parts of sand, clay and silt. You might even see terms such as sandy loam or clay loam, indicating it has a little more of that component. Humus refers to organic material from animals and plants such as peat, manure and compost. Humus breaks down readily in the soil, releasing its nutrients. Soils with lots of humus are called rich soils… soils with very little humus are called lean.
Both humus and minerals contain nitrogen for growth of plants. Alluvial soils are rich in humus and minerals making them good for growth of plants.
fertility
Soil is made up of weathered rocks, humus, it would be from the topsoil.
it kills plants:(
fertility
it is called loam and is very rich and very black
Desert soils contain a high percentage of sand and are low in organic material. This happens in areas where there are few plants that would provide the decayed leaves and other dead organic material called humus. Humus is rich in nutrients and is better able to hold water than sand.