<?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>S0187-57792020000500871</article-id>
<article-id pub-id-type="doi">10.28940/terra.v38i4.793</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización físico-química y biológica del suelo cultivado con maíz en sistemas convencional, agroecológico y mixto en la Frailesca, Chiapas]]></article-title>
<article-title xml:lang="en"><![CDATA[Physico-chemical and biological characteristics of the soil cultured with maize in conventional, agroecological and mixed systems in the Frailesca, Chiapas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Aguilar]]></surname>
<given-names><![CDATA[Franklin B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guevara-Hernández]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar-Jiménez]]></surname>
<given-names><![CDATA[Carlos Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Larramendi]]></surname>
<given-names><![CDATA[Luis Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Sosa]]></surname>
<given-names><![CDATA[Mariela Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[O-Arias]]></surname>
<given-names><![CDATA[Manuel Alejandro La]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chiapas Ciencias Agropecuarias y Sustentabilidad ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Chiapas Facultad de Ciencias Agronómicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Ciencias y Artes de Chiapas Sede Villa Corzo ]]></institution>
<addr-line><![CDATA[Villa Corzo Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Chiapas (UNACH)  ]]></institution>
<addr-line><![CDATA[Villaflores Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>38</volume>
<numero>4</numero>
<fpage>871</fpage>
<lpage>881</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792020000500871&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792020000500871&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792020000500871&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Con el objetivo de caracterizar el suelo del agroecosistema maíz con los sistemas de producción convencional, agroecológico y mixto, para documentar e identificar estrategias que consideren los aspectos ambientales, sociales y económicos que conlleven a alternativas para la producción sostenible, se estudiaron las propiedades físico-químicas y biológicas de 35 muestras obtenidas en 28 ejidos de la región Frailesca, interpretadas con la Norma Oficial Mexicana NOM-021-RECNAT-2000. Los resultados indican una acidez generalizada para los tres sistemas con un pH de 5.05, 5.25 y 5.24, la capacidad intercambio catiónico es baja (13.96, 12.54, y 14.95 cmol(+) kg&#8209;1) y niveles medios de materia orgánica (3.5, 2.58 y 3.45%). Así mismo, los macronutrientes, como el fósforo se encuentra en niveles altos (75.36, 74.78 y 45.05 mg kg&#8209;1) y el potasio se encontró en niveles bajos (3.86, 3.12 y 2.66 mg kg&#8209;1) y los micronutrientes se encuentran en niveles medios como el hierro (3.24, 2.03 y 2.62 mg kg&#8209;1) y boro (1.58, 1.06 y 1.37 mg kg-1). Para el caso de la textura del suelo presentan suelos franco-arcillo-arenoso y franco-arenoso. Desde el punto de vista de las características biológicas del suelo, la macrofauna con el sistema agroecológico reportó mayor diversidad de seres vivos de acuerdo al índice de Shannon y Weaver (H&#8217; = 1.121), destacan coleópteros, anélidos, himenópteros, isópteros y gasterópodos. En ese mismo sentido, para el caso de microorganismos sobresale en diversidad de microorganismos (H&#8217; = 1.121) reportando entomopatógenos (Beauveria bassiana y Metarhizium anisopliae), fijadores de nitrógeno (Rhizobium, Azotobacter y Azospirillum) y hongos patógenos como Rizhoctonia, Fusarium y Alternaria y el sistema con menor diversidad fue el convencional con H&#8217; = 0.789. Bajo estas condiciones el suelo, es necesario una estrategia que permita aumentar la calidad y las prácticas de agricultura puedan ser sostenibles.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: With the aim of characterizing the soil of the maize agroecosystem under conventional, agroecological and mixed production systems, in order to document and identify strategies that consider the environmental, social and economic aspects that lead to alternatives for sustainable production, the physico-chemical and biological properties of 35 samples obtained in 28 communa land areas of Frailesca region, interpreted with the Official Mexican Standard NOM-021-SEMARNAT-2000. The results indicate a generalized acidity for the three systems, with pH of 5.05, 5.25 and 5.24, respectively; the cation exchange capacity is low (13.96, 12.54 and 14.95 cmol (+) kg-1) and organic matter is at average levels (3.5, 2.58 and 3.45%). Likewise, macronutrients are found in high levels, for instance, phosphorous reached 75.36, 74.78, and 45.05 mg kg-1 and potassium was found in low levels (3.86, 3.12, and 2.66 mg kg-1); micronutrients are found in average levels, such as Iron (3.24, 2.03 and 2.62 mg kg-1) and Boron (1.58, 1.06 and 1.37 mg kg&#8209;1). In regard to soil texture, loam-clay-sandy and loam-sandy soils were detected. According to the biological characteristics of the soil, the macro-fauna with the agroecological system reported the greatest biodiversity in terms of the Shannon and Weaver index (H&#8217; = 1.121), where coleopterans, annelids, hymenoptera, isoptera and gastropods were the most outstanding groups. For microorganisms, the greatest biodiversity (H&#8217; = 1.121) was detected in entomopathogens (Beauveria bassiana and Metarhizium anisopliae), nitrogen fixers (Rhizobium, Azotobacter and Azospirillum) and pathogenic fungi such as Rizhoctonia, Fusarium and Alternaria, while the system with smallest diversity was the conventional, with H&#8217; = 0.789. Under these soil conditions, a strategy that allows to increase soil quality and perform sustainable agricultural practices is needed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[macro y microorganismos]]></kwd>
<kwd lng="es"><![CDATA[macronutrientes]]></kwd>
<kwd lng="es"><![CDATA[micronutrientes]]></kwd>
<kwd lng="en"><![CDATA[macro and microorganisms]]></kwd>
<kwd lng="en"><![CDATA[macronutrients]]></kwd>
<kwd lng="en"><![CDATA[micronutrients]]></kwd>
</kwd-group>
</article-meta>
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