Upload NowThis article throws light upon the three reactions by which phosphate fixation takes place in soils. The reactions are: 1. Adsorption 2. Isomorphous Replacement 3. Double Decomposition. Reaction # 1. Adsorption: Adsorption reactions may be classified into two types – (a) physical—phosphate held on the soil solid surface and (b) chemical adsorption—retained phosphate penetrates more […]
Phosphate Fixation in Soil: 3 Reactions | Anion Fixation
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Acid Soil: Distribution, Classification and Pedogenic Processes
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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 […]
Chemistry of Hydrogen and Aluminium in the Development of Soil Acidity
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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 […]