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Potassium adsorption and release kinetics in some gypsiferous soils
Other Title(s)
حركيات امتزاز و تحرر البوتاسيوم في بعض الترب الجبسية
Joint Authors
Dahash, Hamzah Iyad
al-Ubaydi, Basim Shakir Ubayd
Source
Publisher
Tikrit University College of Agriculture
Publication Date
2018-12-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
English Abstract
This study was conducted in the laboratories at the College of Agriculture/ University of Tikrit.
Three different soil types with varied gypsum content; 62, 134, and 241gm.
Kg-1 , 5 different types of saline water 0.00, 0.72, 1.67, 3.21, and 5.12ds m-1 , to evaluate potassium element behavior in adsorption processes and potassium release using kinetic equations.
The equations, that used were zero order, first order, diffusion equation, power function equation, and Elovich equation.
Results showed that the adsorption processes were affected by soil content of clay, organic matter, and gypsum (CaSO4.2H2O).
The kinetic release results showed the superiority of first order equation on the rest of equations.
The best coefficient statistical determination R2 , varied between 0.9831- 0.9896, for low gypsum soils, and R2 of 0.9697 – 0.988 for medium gypsum soils, and R2 of 0.9389 – 0.98 for high gypsum soils.
The lowest standard error SE ranged 9.34 – 11.45 for low gypsum soils, and the lowest SE ranged between 8.66 – 10.88 for medium gypsum soils and SE of 7.89 – 10.14 for high gypsum soils.
Data Type
Conference Papers
Record ID
BIM-922129
American Psychological Association (APA)
al-Ubaydi, Basim Shakir Ubayd& Dahash, Hamzah Iyad. 2018-12-31. Potassium adsorption and release kinetics in some gypsiferous soils. . Vol. 18, Special issue (2018), pp.1-14.Salah al-Din Iraq : Tikrit University College of Agriculture.
https://search.emarefa.net/detail/BIM-922129
Modern Language Association (MLA)
al-Ubaydi, Basim Shakir Ubayd& Dahash, Hamzah Iyad. Potassium adsorption and release kinetics in some gypsiferous soils. . Salah al-Din Iraq : Tikrit University College of Agriculture. 2018-12-31.
https://search.emarefa.net/detail/BIM-922129
American Medical Association (AMA)
al-Ubaydi, Basim Shakir Ubayd& Dahash, Hamzah Iyad. Potassium adsorption and release kinetics in some gypsiferous soils. .
https://search.emarefa.net/detail/BIM-922129