<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792024000100119</article-id>
<article-id pub-id-type="doi">10.28940/terra.v42i0.1843</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación de Métodos para Obtener la Capacidad de Intercambio Catiónico y Cationes Intercambiables de los Suelos]]></article-title>
<article-title xml:lang="en"><![CDATA[Methods Comparison for Cation Exchange Capacity and Exchangeable Cations of Soils]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Preciado-Guzmán]]></surname>
<given-names><![CDATA[José Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Robledo-Santoyo]]></surname>
<given-names><![CDATA[Edmundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pineda-Pineda]]></surname>
<given-names><![CDATA[Joel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corlay-Chee]]></surname>
<given-names><![CDATA[Langen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Alarcón]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[Mateo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Suelos ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>42</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792024000100119&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792024000100119&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792024000100119&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La capacidad de intercambio catiónico (CIC) es una de las propiedades más importantes al evaluar la fertilidad del suelo. El método más usado es mediante acetato de amonio 1 N, pH 7.0; sin embargo, este método presenta errores durante la determinación. Se compararon varios métodos para medir la CIC: acetato de amonio (NH&#8324;OAc) 1 N pH 7.0, acetato de sodio (NaOAc) 1 N pH 8.2, sumatoria de cationes extraídos con NH&#8324;OAc 1 N a pH 7.0 (CICE), cloruro de bario (BaCl2) 0.01 M y tiourea de plata (AgTU) 0.01 M. Los suelos analizados tenían características variables en pH, textura, materia orgánica y carbonatos. Los mayores valores de CIC se obtuvieron con la sumatoria de cationes, seguidos por acetato de amonio y tiourea de plata. El método de acetato de sodio presentó valores intermedios debido a los errores del método. Hubo asociación entre la CIC mediante AgTU y NH&#8324;OAc a diferencia de CICE y NH&#8324;OAc; el costo de determinación con NH&#8324;OAc superó en ocho al de AgTU. Los cationes Mg2+, K+ y Na+ extraídos mediante cloruro de bario, acetato de amonio y acetato de sodio presentaron alta asociación; sin embargo, no hubo relación entre K+ y Na+ extraídos con NH&#8324;OAc y AgTU. El calcio fue el catión que más se sobreestimó, seguido del magnesio y potasio extraído con NH&#8324;OAc 1 N a pH 7.0, donde la sobreestimación varió de 10 a 498 veces con relación al que originalmente está en los sitios de intercambio, mientras que el magnesio y potasio se sobreestimaron de 11.2 a 141.7 y de 3.7 a 33.3 veces, respectivamente. El método de AgTU fue la mejor alternativa para determinar la CIC, ya que es rápido, de bajo costo, minimiza errores y es aplicable a suelos con diferentes características de pH, textura, materia orgánica y contenido de carbonatos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary Cationic exchange capacity (CIC) is one of the most important properties when assessing soil fertility. The most commonly used method is by ammonium acetate 1 N, pH 7.0; however, this method presents errors during determination. Several methods to measure CEC were compared: ammonium acetate (NH&#8324;OAc) 1 N pH 7.0, sodium acetate (NaOAc) 1 N pH 8.2, sum of cations extracted with NH&#8324;OAc 1 N at pH 7.0 (CICE), barium chloride (BaCl2) 0.01 M and silver-thiourea (AgTU) 0.01 M. The soils analyzed had variable characteristics in pH, texture, organic matter and carbonates. The highest CIC values were obtained with the sum of cations, followed by ammonium acetate and silver thiourea. The sodium acetate method presented intermediate values due to errors in the method. There was an association between CIC through AgTU and NH&#8324;OAc as opposed to CICE and NH&#8324;OAc; the cost of determination with NH&#8324;OAc was eight times higher than that of AgTU. The Mg2+, K+ and Na+ cations extracted by barium chloride, ammonium acetate and sodium acetate were highly associated; however, there was no relationship between K+ and Na+ extracted with NH&#8324;OAc and AgTU. Calcium was the cation that was most overestimated, followed by magnesium and potassium extracted with NH&#8324;OAc 1 N at pH 7.0, where the overestimation varied from 10 to 498 times in relation to that originally at the exchange sites, while magnesium and potassium were overestimated from 11.2 to 141.7 and from 3.7 to 33.3 times. respectively. The AgTU method was the best alternative to determine CEC, as it is fast, low-cost, minimizes errors, and is applicable to soils with different characteristics of pH, texture, organic matter, and carbonate content.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[acetato de amonio]]></kwd>
<kwd lng="es"><![CDATA[calcio]]></kwd>
<kwd lng="es"><![CDATA[CIC]]></kwd>
<kwd lng="es"><![CDATA[tiourea de plata]]></kwd>
<kwd lng="en"><![CDATA[ammonium acetate]]></kwd>
<kwd lng="en"><![CDATA[calcium]]></kwd>
<kwd lng="en"><![CDATA[CIC]]></kwd>
<kwd lng="en"><![CDATA[silver-thiourea]]></kwd>
</kwd-group>
</article-meta>
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