Physical and chemical properties of soil |Soil properties upsc| properties of soil -Geography | upsc

00:00 introduction 02:06 physical properties-Soil texture 08:55 soil structure 12:35 Porosity of soil 15:25 Permeability of soil 17:46 Chemical properties of soil-Soil colloids 18:46 Bases 21:50 soil acidity 24:30 soil color Physical and chemical properties of soil :brief description | properties of soil -Geography | soil properties upsc in this video we will study the physical and chemical properties of soil from GS point of view and properties of soil from geography point of view. We will discuss physical properties such as 1.texure of soil 2. Structure of soil 3. Porosity of soil 4.Permeability of soil Chemical properties such as 1.Soil colloids 2.Bases 3. Acidity of soil 4.Colour of soil What color is poorly drained soil? It is gray color.Well or moderately well-drained soils appear brownish, while poorly drained soils appear gray. Somewhat poorly drained soils generally appear gray because they usually have gray clay films, many of which show in the wall of the pit What does soil Color indicate? Soil color is produced by the minerals present and by the organic matter content. Yellow or red soil indicates the presence of oxidized ferric iron oxides. Dark brown or black color in soil indicates that the soil has a high organic matter content. Wet soil will appear darker than dry soil. What factors affect soil color? Four main factors influence the colour of a soil: • Mineral matter derived from the constituents of the parent material. • Organic matter. • The nature and abundance of iron. • Moisture content Why is permeability of soil important? • Permeability refers to the movement of air and water through the soil, which is important because it affects the supply of root-zone air, moisture, and nutrients available for plant uptake. ... Slow permeability is characteristic of a moderately fine subsoil with angular to sub angular blocky structure. What factors affect permeability of soil? A number of factors affect the permeability of soils, from particle size, impurities in the water, void ratio, the degree of saturation, and adsorbed water, to entrapped air and organic material. What are the three types of soil texture? The particles that make up soil are categorized into three groups by size – sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Most soils are a combination of the three. The relative percentages of sand, silt, and clay are what give soil its texture. Which soil texture is best for plant growth? Loam soils Loam soils are best for plant growth because sand, silt, and clay together provide desirable characteristics. First, the different-sized particles leave spaces in the soil for air and water to flow and roots to penetrate Why clay soil has more porosity or low bulk density than sandy soil? Soil texture can affect the amount of pore space within a soil. Sand-sized soil particles fit together in a way that creates large pores; however, overall there is a relatively small amount of total pore space. Clay-sized soil particles fit together in a way that creates small pores; however, overall there are more pores present. Therefore, a soil made of clay-sized particles will have more total pore space than a will a soil made of sand-sized particles. Consequently, clayey soils will generally have lower bulk densities than sandy soils. #geography#agriculture#civilsgsacademy#soil #geographyfacts #geographychannel #civilserviceexam #geographygk Soils of India    • Soils of India upsc : important facts |soi...   Soil :forming process    • Soil : forming process | soil forming proc...   Soils of world    • Soils of the world upsc|Zonal classificati...   Factors controlling soil formation    • Factors affecting soil formation||Factors ...