<?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>0120-0739</journal-id>
<journal-title><![CDATA[Colombia Forestal]]></journal-title>
<abbrev-journal-title><![CDATA[Colomb. for.]]></abbrev-journal-title>
<issn>0120-0739</issn>
<publisher>
<publisher-name><![CDATA[Proyecto Curricular de Ingeniería Forestal, Facultad del Medio Ambiente y Recursos Naturales, Universidad Distrital Francisco José de Caldas.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-07392022000100005</article-id>
<article-id pub-id-type="doi">10.14483/2256201x.18064</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Changes in Soil Quality Associated with the Implementation of Ecological Agriculture Techniques in Coffee Plants under Different Coverings]]></article-title>
<article-title xml:lang="es"><![CDATA[Cambios en calidad del suelo asociados a la aplicación de técnicas de agricultura ecológica en plantas café bajo diferentes coberturas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez Pinzon]]></surname>
<given-names><![CDATA[Paula Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ariza Vargas]]></surname>
<given-names><![CDATA[Leaddy Karolinna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Avellaneda-Torres]]></surname>
<given-names><![CDATA[Lizeth Manuela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Libre Department of Engineering ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Libre Department of Engineering ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Libre Department of Engineering ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>25</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>20</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-07392022000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-07392022000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-07392022000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The aim of this research was to evaluate the changes in the soil quality associated with the implementation of ecological agriculture (EA) techniques in coffee plantations under different coverings (banana, mandarin, and a mix of citrus fruits) in San José de Pare, Boyacá. To this effect, changes in physicochemical parameters, the abundance of functional groups of microorganisms (phosphate solubilizers, cellulolytic microorganisms, nitrogen fixers), and enzymatic activities (acid and alkaline phosphatase, &#946;-glucosidase, urease, and protease) were determined. The soil samples were collected on a bimonthly basis for a period of ten months in plots cultivated with coffee plantations with three different coverings: banana, mandarin, and a mix of citrus fruits. The results showed modifications in the soil quality indicators as a consequence of the application of EA techniques, finding a significant increase in the content of phosphorus, carbon, phosphate solubilizing bacteria and fungi, and cellulolytic fungi. In contrast, no significant changes were observed for enzymatic activity.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La presente investigación tuvo como objetivo evaluar cambios de la calidad del suelo asociados a la implementación de técnicas de agricultura ecológica (AE) en cafetales bajo diferentes coberturas en San José de Pare, Boyacá. Para el cumplimiento de este objetivo se determinaron cambios en parámetros fisicoquímicos, abundancia de grupos funcionales de microorganismos (solubilizadores de fosfatos, celulolíticos, fijadores de nitrógeno) y actividades enzimáticas (fosfatasa acida y alcalina, &#946;-glucosidasa, ureasa y proteasa). Las muestras de suelo se recolectaron de manera bimensual durante un periodo de diez meses en parcelas con cultivo de café con tres diferentes coberturas: plátano, mandarina y una mezcla de cítricos. Los resultados mostraron modificaciones de los indicadores de calidad del suelo como consecuencia de la aplicación de técnicas de AE, encontrando un aumento significativo en el contenido de fósforo, carbono, bacterias y hongos solubilizadores de fosfato y hongos celulolíticos. En contraste, no se observaron cambios significativamente relevantes en la actividad enzimática.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[agroecology]]></kwd>
<kwd lng="en"><![CDATA[enzymes]]></kwd>
<kwd lng="en"><![CDATA[agroforestry systems]]></kwd>
<kwd lng="en"><![CDATA[microorganisms]]></kwd>
<kwd lng="en"><![CDATA[green revolution.]]></kwd>
<kwd lng="es"><![CDATA[agroecología]]></kwd>
<kwd lng="es"><![CDATA[enzimas]]></kwd>
<kwd lng="es"><![CDATA[sistemas agroforestales]]></kwd>
<kwd lng="es"><![CDATA[microorganismos]]></kwd>
<kwd lng="es"><![CDATA[revolución verde]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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<source><![CDATA[Investigaciones Geográficas, Boletín del Instituto de Geografía]]></source>
<year>2012</year>
<numero>77</numero>
<issue>77</issue>
<page-range>18-30</page-range><publisher-name><![CDATA[UNAM]]></publisher-name>
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</back>
</article>
