Kinetics of Non-exchangable Potassium Release in Aggregates with Different Sizes in a Number of Calcareous Soils

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Atar Shahraki S. Z.; Hosseinpur A. R.; Motaghian H. R.; GHORBANI SH.

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Journal: Journal of Water and Soil Science Year:2018 | Volume:22 | Issue:1 Page(s): 267-278

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Title

Kinetics of Non-exchangable Potassium Release in Aggregates with Different Sizes in a Number of Calcareous Soils

Author(s)

Atar Shahraki S. Z. | Hosseinpur A. R. | Motaghian H. R. | GHORBANI SH. | Issue Writer Certificate

Keywords

Release of none exchangeable potassiumQ1

AggregatesQ2

Calcium chlorideQ2

Kinetics equationsQ2

Abstract

The study of the kinetics of non-exchangeable potassium (NEK) release is very important for a better understanding of K availability for plants in different soils. Moreover, Aggregates with different sizes have different effects on the release of nutrients. Therefore, the aim of this study was to examine the release of NEK in 5 calcareous soils of chaharmahalva-bakhtiari province, and small and large Aggregates (<250 μ m and >250 μ m) using CaCl2 0. 01 M at 25± 1º c for 2-2017 h. The results showed that cumulative released NEK in soils, and small and large Aggregates was 173. 5-372. 7, 215. 1-426. 1 and 178. 9-381. 5 mg kg-1, respectively. The results revealed that coefficients of the cumulative released NEK in small Aggregates was lower than those of the soils and large Aggregates. Based on the coefficient of determination (R2) and standard error (SE), the released NEK was well described by the first order, the power function, parabolic diffusion, and simplified Elovich equations. The rate coefficients of the release of K were different in different soils. The cumulative released amount of K and its rate of release in a solution of Calcium chloride in small Aggregates was more than those of large Aggregates.

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APA: Copy

Atar Shahraki, S. Z., Hosseinpur, A. R., Motaghian, H. R., & GHORBANI, SH.. (2018). Kinetics of Non-exchangable Potassium Release in Aggregates with Different Sizes in a Number of Calcareous Soils. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 22(1 ), 267-278. SID. https://sid.ir/paper/362183/en

Vancouver: Copy

Atar Shahraki S. Z., Hosseinpur A. R., Motaghian H. R., GHORBANI SH.. Kinetics of Non-exchangable Potassium Release in Aggregates with Different Sizes in a Number of Calcareous Soils. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2018;22(1 ):267-278. Available from: https://sid.ir/paper/362183/en

IEEE: Copy

S. Z. Atar Shahraki, A. R. Hosseinpur, H. R. Motaghian, and SH. GHORBANI, “Kinetics of Non-exchangable Potassium Release in Aggregates with Different Sizes in a Number of Calcareous Soils,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 22, no. 1 , pp. 267–278, 2018, [Online]. Available: https://sid.ir/paper/362183/en

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