Soil salinity is one of the major environmental problems that affect the crop yield, soil health and consequently the socio-economic condition of the farming community. Monitoring the progressive development of soil salinity and assessment of its degree of severity is important to quantify its adverse effect on production and productivity and on environmental degradation. Presently, the monitoring of soil salinity [...]
After reading this article you will learn about:- 1. Definition of Saline-Alkali (Sodic) Soils 2. Classification of Saline-Alkali (Sodic) Soils 3. Chemical Reactions 4. Distribution 5. Appraisal. Definition of Saline-Alkali (Sodic) Soils: Saline (Solonchak, Russian Term) Soil: Saline soils defined as a soil having a conductivity of the saturation extract greater than 4 dSm-1 (0.4 Sm-1 or 4 mmhos cm-1) [...]
After reading this article you will learn about the nature and sources of soluble salts found in soil. Nature of Soluble Salts: Soluble salts, as referred to in soil science, are those inorganic chemicals that are more soluble than gypsum (CaSO4.2H2O), which has a solubility of 0.241 gm. per 100 ml of water at 0°C. Common table salt (NaCl) has [...]