What are the meanings of loam and humus?
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.
