The sand, silt, and clay of soil, particles which will pass through a 2-mm sieve. Also called soil separates. Gravel, cobbles, flagstones, and other constituents larger than 2-mm in diameter are not soil separates but are used as modifiers in names determing soil texture. The aqueous liquid portion and its solutes in soil. A soil physical property that is based on the arrangement of soil separates into groups of particles that cohere or adhere by cementation.
Aggregates are clusters of many soil particles in a single mass.
Ideally aggregates are sand-sized for good soil tilth. Large aggregates are called clods, crumbs, block, prisms, or peds. Soil surface area. The total surface area of the sand, silt, and clay particles in soil. An analytical process applied to assess the capacity of soils to supply plant nutrients.