Potassium Fixation and its Relationship with Physico-Chemical Properties and Clay Minerals in the Calcareous Soils of Kakan Plain, Kohgilouye & Boyerahmad Province

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SHAKERI S.

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Journal: Journal of Water and Soil Science Year:2018 | Volume:22 | Issue:1 Page(s): 239-254

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Title

Potassium Fixation and its Relationship with Physico-Chemical Properties and Clay Minerals in the Calcareous Soils of Kakan Plain, Kohgilouye & Boyerahmad Province

Author(s)

SHAKERI S. | Issue Writer Certificate

Keywords

SmectiteQ1

Potassium fixationQ2

Drying and wettingQ1

Organic carbonQ1

Kakan plainQ2

Abstract

Potassium fixation is one of the most important factors influencing the availability of this ion for plants. This research was carried out to evaluate the relationship between potassium (K) fixation with some physical and chemical characteristics of soils and clay minerals and to investigate the effect of the dry and wet cycle on Potassium fixation in Kakan plain, in Kohgilouye & Boyerahmad Province. To measure the amount of Potassium fixation, four levels of K were added to the samples and the samples were shaken for 24 h and then dried in the oven at 50° C for 24 h. The Drying and wetting cycle was repeated three times. Another set of soil samples was similarly incubated for a period similar to the previous treatment, but drying was performed at room temperature in an equilibrium state. The results showed that Potassium fixation was increased with the potassium concentration increment, whereas K fixation percentage was reduced. Also, Potassium fixation showed a positive significant relationship with cation exchange capacity (CEC) as well as clay content, in both normal and dry and wet treatments, and a negative significant relationship with Organic carbon. Moreover, Potassium fixation was enhanced with the increase of Smectite content in both normal and dry and wet treatments. Besides, due to more Organic carbon and less Smectite, surface horizons fixed K less than the subsurface horizons.

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APA: Copy

SHAKERI, S.. (2018). Potassium Fixation and its Relationship with Physico-Chemical Properties and Clay Minerals in the Calcareous Soils of Kakan Plain, Kohgilouye & Boyerahmad Province. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 22(1 ), 239-254. SID. https://sid.ir/paper/394927/en

Vancouver: Copy

SHAKERI S.. Potassium Fixation and its Relationship with Physico-Chemical Properties and Clay Minerals in the Calcareous Soils of Kakan Plain, Kohgilouye & Boyerahmad Province. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2018;22(1 ):239-254. Available from: https://sid.ir/paper/394927/en

IEEE: Copy

S. SHAKERI, “Potassium Fixation and its Relationship with Physico-Chemical Properties and Clay Minerals in the Calcareous Soils of Kakan Plain, Kohgilouye & Boyerahmad Province,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 22, no. 1 , pp. 239–254, 2018, [Online]. Available: https://sid.ir/paper/394927/en

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