After reading this article you will learn about the meaning and types of soil colloids. Meaning Soil Colloids: The colloidal state refers to a two-phase system in which one material (or materials) in a very finely divided state is dispersed through a second. Few examples of the colloidal state—milk and cheese; clouds and fog; starch, gelatin, rubber, proteins, blood, and [...]
After reading this article you will learn about:- 1. Definition of Ion-Exchange 2. Site for Ion Exchange 3. Kinds of Exchangeable Ions 4. Factors Affecting Ion-Exchange. Definition of Ion-Exchange: Ion-exchange is defined as a reversible process by which cations and anions are exchanged between solid and liquid phases, and between solid phases it in close contact with each other. For [...]
After reading this article you will learn about the importance of cation exchange in plant nutrition. Cation exchange is an important reaction in soil fertility, in correcting soil acidity and basicity, in altering soil physical properties, and as a mechanism in purifying or altering percolating waters. Plant roots, when they come in contact with colloidal particles, adsorb exchangeable cations directly [...]