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Application of Parabolic Diffusion Equation … to Determine the Rate and Capacity of Potassium Release in Soil | ||
| journal of kerbala university | ||
| Article 1, Volume 11, Issue 1, 2015, Pages 149-160 PDF (0 K) | ||
| Abstract | ||
| The Objective of this study is to identify the application of mathematical models to describe the chemical behavior of potassium release in some Iraqi Soils and to justify the applicability of these equations to the kinetics of release in soil. To achieve this purpose, the soil samples from (12) sites were collected and they differ in their chemical, physical and mineralogical properties. In order to describe the potassium status in these soils, the total potassium content and its' fraction, rate of k release and some kinetics parameters were determined. The potassium release in the studied soils has been mathematically described, using some kinetics models and equations. The parabolic diffusion equation was used to describe the potassium release process in all soils involved in the experiment and it was found that it is the best kinetics equations in this study. | ||
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