Science
Soil composition.
Definition
Soil composition refers to the mixture of mineral particles (sand, silt, clay), organic matter (humus), water, air, and living organisms that make up soil. The relative proportions of these components determine soil type, fertility, and suitability for plant growth.
Examples
Real-world.
- 1 Sandy soil draining water quickly but holding few nutrients
- 2 Clay-rich soil retaining moisture but becoming compacted easily
- 3 Rich garden topsoil containing about 5% organic matter from decomposed leaves and organisms