<?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>0377-9424</journal-id>
<journal-title><![CDATA[Agronomía Costarricense]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Costarricense]]></abbrev-journal-title>
<issn>0377-9424</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica. Colegio de Ingenieros y Agrónomos. Ministerio de Agricultura y Ganadería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0377-94242021000200071</article-id>
<article-id pub-id-type="doi">10.15517/rac.v45i2.47768</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de sistemas ganaderos del Caribe seco para cuantificación de índices de calidad de suelo]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of livestock systems in the dry Caribbean for quantification of soil quality indicators]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Santos]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Atencia]]></surname>
<given-names><![CDATA[Judith]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Falla-Guzmán]]></surname>
<given-names><![CDATA[Cindy Katherine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garrido-Pineda]]></surname>
<given-names><![CDATA[Jeyson Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Vitola]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA),  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA),  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA),  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA),  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA),  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>45</volume>
<numero>2</numero>
<fpage>71</fpage>
<lpage>87</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0377-94242021000200071&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0377-94242021000200071&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0377-94242021000200071&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Introducción. Los procesos de degradación del suelo están asociados principalmente a malas prácticas y cambios en su uso. Generar indicadores que permitan conocer el estado del suelo es necesario para buscar alternativas que permitan mejorar la calidad del suelo. Objetivo. Evaluar algunos indicadores edáficos en diferentes sistemas de ganadería bovina tradicionales en el Caribe Colombiano. Materiales y métodos. Se colectaron muestras de suelo de 72 fincas por triplicado, para un total de 216 muestras, distribuidas en los 6 departamentos (Córdoba, Sucre, Bolívar, Atlántico, Cesar y Magdalena). Se evaluaron propiedades físicas y químicas del suelo con el fin de identificar los principales indicadores y construir los índices de calidad de suelo. Resultados. Se evidenciaron procesos de compactación en todas las fincas evaluadas, con valores de densidad aparente superiores a 1,4 g.cm-3, con predominio de texturas mediadas a finas (franco). Se encontraron valores de materia orgánica por encima de 2% en los departamentos de Córdoba (3,18±0,99%) y Bolívar (3,10±01,55%), contrario a lo identificado en Atlántico, Cesar y Magdalena con contenidos inferiores a 2%. La capacidad de intercambio catiónico efectivo (CICe) presentó valores superiores a 20 cmol(+).kg-1en la gran mayoría de los suelos evaluados, excepto los valores registrados en las fincas ubicadas en el departamento de Cesar. Los contenidos de P, S, Ca, Mg y K fueron altos en todas las fincas evaluadas. El índice de calidad del suelo está determinado por las propiedades químicas (pH, capacidad de intercambio catiónico y conductividad eléctrica). Conclusiones. Se reconocieron procesos de compactación relacionados con altos valores de densidad aparente y bajo contenido de poros totales. El manejo de suelo bajo los sistemas ganaderos es determinante en la cuantificación del índice de calidad de suelo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Introduction. Soil degradation processes are mainly associated with poor management practices and changes in its use. Indicators that allow knowing the state of the soil is required to seek for alternatives that will help to improve soil quality. Objective. To evaluate some edaphic indicators in different traditional bovine livestock systems in the Colombian Caribbean. Materials and methods. Soil samples in triplicate were collected from 72 farms distributed in 6 departments (Cordoba, Sucre, Bolivar, Atlantico, Cesar and Magdalena), for a total of 216 samples. Soil physical and chemical properties were evaluated in order to identify the main indicators to develop a soil quality index. Results. Compaction processes were evident in all the evaluated farms with bulk density values higher than 1.4 g.cm-3with a predominance of medium to fine textures (loam). Organic matter values above 2% were found in the departments of Cordoba (3.18±0.99%) and Bolívar (3.10±01.55%), contrary to what was identified in Atlantico, Cesar, and Magdalena with contents below to 2%. The effective cation exchange capacity presented values higher than 20 cmol(+).kg-1in most of the soils, except for the values registered in the farms located in the department of Cesar. The contents of P, S, Ca, Mg and K were high in all the evaluated farms. Soil quality index is determined by the chemical properties (pH, cation exchange capacity and electrical conductivity). Conclusions. Compaction processes related to high bulk density values and low total pore content were recognized. Soil management under the livestock systems is decisive in the quantification of the soil quality index.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[físico-químicas suelo]]></kwd>
<kwd lng="es"><![CDATA[degradación de suelo]]></kwd>
<kwd lng="es"><![CDATA[fertilidad de suelo]]></kwd>
<kwd lng="es"><![CDATA[calidad de suelo]]></kwd>
<kwd lng="es"><![CDATA[sistemas de ganadería bovina.]]></kwd>
<kwd lng="en"><![CDATA[properties of soil]]></kwd>
<kwd lng="en"><![CDATA[soil degradation]]></kwd>
<kwd lng="en"><![CDATA[soil fertility]]></kwd>
<kwd lng="en"><![CDATA[soil quality]]></kwd>
<kwd lng="en"><![CDATA[bovine livestock systems]]></kwd>
</kwd-group>
</article-meta>
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