Le sol désigne la couche superficielle altérée et fragmentée de la croûte terrestre. Il est formé initialement par la désintégration et la décomposition des roches par des processus physiques et chimiques et est influencé par l'activité et les résidus accumulés par de nombreuses espèces d'animaux microscopiques et macroscopiques. Les processus physiques d'altération qui entraînent la désintégration des roches en petits fragments comprennent l'expansion et la contraction causées par l'alternance du chauffage et du refroidissement, les contraintes résultant du gel et du...

The soil is the unconsolidated mineral matter that has been subjected to and influenced by genetic and environmental factors, parent material, climate, organisms, and topography all acting over a period of time. Soil differs from the parent material in the morphological, physical, chemical and biological properties. Also, soils differ among themselves in some or all the properties, depending on the differences in the genetic and environmental factors.

The present study with the title "Electrical conductivity, Dielectric studies and Physical properties of soil samples selected from Chitradurga and Shimoga districts," found a spatial variation with respect to soil physical and chemical properties among the studied samples. This reflects heterogeneity of the soil samples within the study area. With respect to elemental composition Silica (Si) was found to be higher in Samples of Chitradurga district whereas samples of Shimoga district showed higher Oxygen (O) content. Based on the correlation data the electrical conductivity and dielectric...

An investigation was carried out to study the physical and chemical properties, electrical conductivity and dielectric studies of different soil samples collected from Chitradurga. This chapter describes the detailed methodology adopted for the collection and processing of soil samples from different location. This chapter also explains the methodology followed to study the physical, chemical, nutrient status, electrical conductivity and dielectric studies of the collected soil samples.

Soil refers to the weathered and fragmented surface layer of the earth's crust. It is formed initially through disintegration and decomposition of rocks by physical and chemical processes and is influenced by the activity and accumulated residues of numerous species of microscopic and macroscopic animals. The physical weathering process which brings about the disintegration of rocks into small fragments includes expansion and contraction caused by alternating heating and cooling, stresses resulting from freezing and thawing of water and the penetration of roots, and scouring or grinding by...

This research work was to analyze the soils of various taluks of Chitradurga and Shimoga districts in terms of their physicochemical parameters and arrive at a comparative assessment of the similarities and differences that exist due to regional topography and climate, and the consequential influence on favoured crop type for harvest, their growth prospects and the final yield.Every year 5th of December is celebrated as World Soil Day, and 2015 was declared by the United Nations Assembly as the International Year of Soil. This was an opportunity to raise awareness of the importance of soils,...