Effect of various land uses on potassium forms and some soil properties in Kohgiluyeh and Boyer-Ahmad Province, Southwest Iran

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AZADI A.; SHAKERI S.

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Journal: Iran Agricultural Research Year:2020 | Volume:39 | Issue:1 Page(s): 121-133

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Title

Effect of various land uses on potassium forms and some soil properties in Kohgiluyeh and Boyer-Ahmad Province, Southwest Iran

Author(s)

AZADI A. | SHAKERI S. | Issue Writer Certificate

Keywords

Land useQ1

MineralogyQ3

PotassiumQ1

Soil propertiesQ2

Abstract

Changing pasture and forest Land use to agricultural Land use can effect on many properties of the soil and its productivity. The present research aimed to investigate various forms of K (soluble, exchangeable, non-exchangeable, and structural forms) and some Soil properties in various Land uses of three areas including Choram, Kakan and Bahmaei in Kohgiluyeh and Buyer-Ahmad Province. The study areas covered various Land uses types including agriculture, gardens, and uncultivated soils. Four pedons were excavated in various Land uses of each area (in total, 12 pedons). All pedons were described and classified based on the Keys to Soil Taxonomy. The results showed that there was not any significant positive correlation between the clay and silt contents in various Land uses, while the lowest content of clay was observed in agricultural Land use. The percentage of organic carbon was in its highest level in pasture Land use (1. 01%), and in its lowest level in agricultural (0. 7%) and fallow-wheat (0. 4%) cultivation. The highest and lowest pH levels were obtained in paddy soil (8. 1) and garden (6. 8), respectively. The maximum level of soluble, exchangeable, nonexchangeable, structural and total forms of K in the studied area were 0. 5-6. 1, 45-262, 86-366, 835-5197 and 967-5555 mgkg-1 of the soil, respectively. The studied soils of Kakan and Choram areas had the lowest and highest levels of non-exchangeable, structural, and total forms of K, respectively. In addition, the highest levels of soluble and exchangeable forms of K were observed in Bahmaei and Kakan areas, respectively. The soluble and exchangeable forms of K had significant changes in various Land uses, so that their highest levels were observed in wheat and forest Land use, respectively. The highest level of non-exchangeable K was related to forest use, and its total and structural forms were related to paddy Land use in Choram area.

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APA: Copy

AZADI, A., & SHAKERI, S.. (2020). Effect of various land uses on potassium forms and some soil properties in Kohgiluyeh and Boyer-Ahmad Province, Southwest Iran. IRAN AGRICULTURAL RESEARCH, 39(1 ), 121-133. SID. https://sid.ir/paper/361268/en

Vancouver: Copy

AZADI A., SHAKERI S.. Effect of various land uses on potassium forms and some soil properties in Kohgiluyeh and Boyer-Ahmad Province, Southwest Iran. IRAN AGRICULTURAL RESEARCH[Internet]. 2020;39(1 ):121-133. Available from: https://sid.ir/paper/361268/en

IEEE: Copy

A. AZADI, and S. SHAKERI, “Effect of various land uses on potassium forms and some soil properties in Kohgiluyeh and Boyer-Ahmad Province, Southwest Iran,” IRAN AGRICULTURAL RESEARCH, vol. 39, no. 1 , pp. 121–133, 2020, [Online]. Available: https://sid.ir/paper/361268/en

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