In this article we will discuss about:- 1. Meaning of Colloid 2. Properties of Colloid 3. Types 4. Soil Colloids. Meaning of Colloid: Graham (1861) divided the soluble substances into two classes—crystalloid and colloids depending on their power to diffuse through vegetable and animal membranes. Crystalline substances such as sugar, salt and urea which in solution diffused rapidly through animal [...]
In this article we will discuss about:- 1. Types of Soil Reaction 2. Soil pH 3. Factors Controlling Soil Reaction 4. Influence. Types of Soil Reaction: One of the outstanding physiological characteristics of the soil solution is its reaction. Soil reaction influences many physical and chemical properties of soil. The growth and activity of plant and soil organisms depend on [...]
Here is a list of soils that are found in India: 1. Alluvial Soil 2. Black Soils 3. Red Soils 4. Laterites and Lateritic Soils 5. Forest and Hill Soils 6. Desert Soils 7. Saline and Alkali Soils 8. Peaty and Marshy Soils. Soils have been originated from disintegration and decomposition of rocks. The Indian subcontinent is characterized by a [...]