After reading this article you will learn about:- 1. Distribution of Acid Soil 2. Classification of Acid Soils 3. Pedogenic Processes. Distribution of Acid Soil: Out of 157 million hectares of cultivable land in India, 49 million hectares of land are acidic, of which 26 million hectares of land having soil pH less than 5.6 (pH < 5.6) and the [...]
After reading this article you will learn about the chemistry of hydrogen and aluminium in the development of soil acidity. It is evident that hydrogen and aluminium both contributes soil acidity. Hydrogen ions contribute soil acidity directly while aluminium ions do so indirectly through hydrolysis. Therefore, it is essential to know the chemistry of aluminium for the development of soil [...]
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 [...]