Tag Archives | Phosphate Fixation

This 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 or less uniformly into the [...]

This article throws light upon the six main factors that affect phosphate fixation in soil. The factors are: 1. Nature and Amount of Soil Components 2. pH 3. Other Ions 4. Organic Matter 5. Temperature 6. Over Liming. Factor # 1. Nature and Amount of Soil Components: Adsorption and desorption reactions are affected by the type of surfaces contacted by [...]