Crumbly soil is a type of soil that is easily broken apart and is composed of a combination of clay, silt, sand, and organic matter. The four crossword solutions for the term crumbly soil are LOAM (4 letters), MARL (4 letters), FRIABLE (7 letters), and MRL (3 letters). LOAM is a type of soil that is made up of a combination of clay, silt, and sand, and is known for its ability to hold moisture and nutrients. MARL is a type of soil that is composed of clay and calcium carbonate, and is known for its ability to improve soil fertility. FRIABLE is a term used to describe soil that is easily broken apart and crumbled. MRL is an acronym for Mineral Rich LOAM, which is a type of soil that is rich in minerals and organic matter.