What is the action of a substance adhering to a surface called?

The term for a substance adhering to a surface is known as adsorption. This process involves molecules from a gas or liquid phase attaching themselves to the surface of a solid or liquid. It differs from absorption, where a substance is taken up or absorbed throughout the bulk of a solid or liquid medium. In the context of turf and ornamental weed management, understanding adsorption is crucial, as it affects how herbicides and fertilizers interact with soil and plant surfaces. The efficacy of these substances can hinge on how well they adhere to the targeted areas, influencing their overall effectiveness in controlling weeds and promoting plant health.

Aeration primarily refers to the process of introducing air into a material, often used to enhance soil health, while agitation relates to stirring or mixing substances. Neither of these concepts pertains to the specific action of substances adhering to surfaces.