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Determination of Exchangeable Cations in Soils Affected by Different Types of Salt Accumulation
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 Title & Authors
Determination of Exchangeable Cations in Soils Affected by Different Types of Salt Accumulation
Lee, Ye-Jin; Yun, Hong-Bae; Kim, Rog-Young; Lee, Jong-Sik; Song, Yo-Sung; Sung, Jwa-Kyung; Yang, Jae-E.;
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Exchangeable cations are often overestimated especially in salt-affected soils due to the presence of high levels of soluble ions in soil solution. Thus, quantitative analysis of the soil exchangeable cation based on ammonium acetate extraction method {(Exch. Cation)} requires additional process to remove the free ions (pre-washing) in soil with distilled water or alcohol {(Exch. Cation)} or subtraction of the soluble ion contents from the total exchangeable cations {(Exch. Cation)}. In this research, we compared the three different methods for the determination of exchangeable cations in soils affected by different types of salt accumulation such as the soils from upland, plastic film house, and reclaimed tidal land. In upland soils, non-saline and non-sodic soils, the regular ammonium acetate extraction method did not have any problem to determine the content of exchangeable cations without any additional process such as the pre-washing method or the subtraction method. However, the contents of exchangeable cations in the salt-affected soils might be determined better with the pre-washing method for the plastic film house soils and with the subtraction method for the reclaimed tidal land soils containing high Na.
Exchangeable cations;Salt-affected soils;Salt prewashing;Soluble salts;;
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새만금간척지에서 점적관수량이 토양염농도와 녹색꽃양배추의 생육에 미치는 영향,배희수;황재복;김학신;구본일;최인배;박태선;박홍규;이수환;오양열;이상훈;이건휘;

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