<?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>1659-1321</journal-id>
<journal-title><![CDATA[Agronomía Mesoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Mesoam]]></abbrev-journal-title>
<issn>1659-1321</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-13212018000200325</article-id>
<article-id pub-id-type="doi">10.15517/ma.v29i2.29511</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Respuesta foliar y radical del maíz a la fertilización biológica-química en un suelo Luvisol]]></article-title>
<article-title xml:lang="en"><![CDATA[Foliar and radical response of maize to biological-chemical fertilization in a Luvisol soil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montejo-Martínez]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Casanova-Lugo]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Gómez]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oros-Ortega]]></surname>
<given-names><![CDATA[Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Echeverría]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Maldonado]]></surname>
<given-names><![CDATA[Emilio Raymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de la Zona Maya  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<volume>29</volume>
<numero>2</numero>
<fpage>325</fpage>
<lpage>341</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-13212018000200325&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-13212018000200325&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-13212018000200325&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Una alternativa para sustituir el uso excesivo de fertilizantes químicos es el empleo de microorganismos del suelo. Usar bacterias fijadoras de nitrógeno (N) y hongos formadores de micorrizas puede mejorar el crecimiento de diferentes cultivos. El objetivo de este trabajo fue evaluar la influencia de Rhizophagus intraradices y Azospirillum brasilense, y la adición de fertilizantes químicos sobre la respuesta foliar y radical en el cultivo de maíz en suelo Luvisol. El estudio se realizó de octubre 2014 a enero de 2015 en el Instituto Tecnológico de la Zona Maya del Estado de Quintana Roo, México. Se estableció un cultivo de maíz con un diseño de bloques completos al azar, y cuatro tratamientos con cuatro repeticiones: micorriza y Azospirillum (MA), micorriza y Azospirillum + fertilizante químico 50% (MA + FQ50%), fertilizante químico 100% (FQ100%) en dosis de 142&#8211;70&#8211;00 kg/ha y un testigo. Se midió la altura y diámetro del tallo de las plantas. Además, se monitoreó el número y longitud de raíces por medio de la técnica del minirrizotrón en cinco profundidades a diferentes edades de las plantas. Al final del periodo experimental se cuantificó la biomasa foliar y radical. Los tratamientos de FQ100% y MA+FQ50% presentaron mayor altura total y diámetro del tallo de las plantas. Estos mostraron el mayor número y longitud de raíces finas, en comparación con los demás tratamientos. No obstante, el tratamiento con MA+FQ50% mantuvo la mayor cantidad de biomasa al final del cultivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  An alternative to replace the excessive use of chemical fertilizers is the use of soil microorganisms. In this regard, using nitrogen fixing bacteria (N) and mycorrhizal fungi may improve the growth of different crops. The objective was to evaluate the influence of Rhizophagus intraradices and Azospirillum brasilense, as well as the addition of chemical fertilizers on foliar and root response of maize crop in Luvisol soil. The study was conducted from October 2014 to January 2015 at the Technological Institute of the Mayan Zone, Quintana Roo, Mexico. A corn culture was established by a randomized complete block design, and four treatments with four replicates: Mycorrhiza and Azospirillum (MA), Mycorrhiza and Azospirillum + 50% chemical fertilizer, (MA + FQ50%), 100% chemical fertilizer FQ100%) in doses of 142-70-00 kg / ha and a control. Stem height and diameter of the plants were measured. In addition, the number and length of roots were monitored by means of the minirhizotron technique at five depths and at different ages of the plants. At the end of the experimental period, leaf and root biomass were quantified. Treatments of FQ100% and MA + FQ50% presented higher total height and higher stem diameter of the plants. Also, these showed the highest number and length of fine roots, compared to the other treatments. However, treatment with MA + FQ50% kept the highest amount of biomass at the end of the crop.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fertilidad del suelo]]></kwd>
<kwd lng="es"><![CDATA[biomasa]]></kwd>
<kwd lng="es"><![CDATA[microorganismo]]></kwd>
<kwd lng="es"><![CDATA[dinámica de raíces]]></kwd>
<kwd lng="es"><![CDATA[Zea mays L]]></kwd>
<kwd lng="en"><![CDATA[soil fertility]]></kwd>
<kwd lng="en"><![CDATA[biomass]]></kwd>
<kwd lng="en"><![CDATA[microorganisms]]></kwd>
<kwd lng="en"><![CDATA[root dynamics]]></kwd>
<kwd lng="en"><![CDATA[Zea mays L]]></kwd>
</kwd-group>
</article-meta>
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