<?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>S0187-57792020000100009</article-id>
<article-id pub-id-type="doi">10.28940/terra.v38i1.507</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rentabilidad de sistemas de producción de grano y forraje de híbridos de maíz, con fertilización biológica y química en trópico seco]]></article-title>
<article-title xml:lang="en"><![CDATA[Profitability of grain and fodder production systems of corn hybrids, with biological and chemical fertilization in dry tropic]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayvar-Serna]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Nájera]]></surname>
<given-names><![CDATA[José Francisco]]></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 contrib-type="author">
<name>
<surname><![CDATA[Mena-Bahena]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tejeda-Reyes]]></surname>
<given-names><![CDATA[Manuel Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuevas-Apresa]]></surname>
<given-names><![CDATA[Zacarías]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Departamento de Fitotecnia Departamento de Fitotecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Parasitología Agrícola ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio Superior Agropecuario del estado de Guerrero Centro de Estudios Profesionales Depto. de Fitotecnia]]></institution>
<addr-line><![CDATA[Iguala Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>38</volume>
<numero>1</numero>
<fpage>9</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792020000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792020000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792020000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En el ciclo agrícola primavera-verano de 2016 se evaluaron los híbridos P4082W, H565 y DK357 con fertilización química y química + biológica mediante un experimento factorial en arreglo de parcelas divididas. En los tratamientos con biofertilizante se inoculó la semilla con Glomus intraradices + Azospirillum brasilense; en la fertilización química se aplicó 120N-80P-80K. Se midieron las variables: altura, diámetro del cuello y número de hojas de la planta, número y peso de mazorcas con y sin brácteas, peso de brácteas, longitud y diámetro de la mazorca, número de hileras mazorca-1, peso de grano de 5 mazorcas, longitud, diámetro y peso del olote, rendimientos de grano, de forraje zacateado y de molido seco; para determinar la rentabilidad de los sistemas se calcularon el costo total (CT), ingreso total (IT), ingreso neto (IN) y la ganancia por peso invertido (GPI). El análisis estadístico incluyó análisis de varianza y prueba de comparaciones de medías con el método de Tukey. Se encontró que el híbrido DK357 registró la mayor altura, número de hojas, peso de grano, longitud de mazorca y del olote, rendimiento de grano y forraje tanto zacateado como molido seco. El genotipo P4082W obtuvo el mayor peso de mazorca con y sin brácteas. La fertilización química favoreció el rendimiento de forraje zacateado, y en combinación con la biológica, incrementó el rendimiento de grano. Los híbridos DK357 y P4082W cultivados con fertilización química y biológica resultaron rentables en los sistemas para producción de grano solo, forraje zacateado y grano y forraje seco molido.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: In the spring-summer agricultural cycle of 2016, the hybrids P4082W, H565, and DK357 were evaluated with chemical and chemical + biological fertilization by means of a factorial experiment arranged in a split-plot design. In the treatments with biofertilizer the seed was inoculated with Glomus intraradices + Azospirillum brasilense; in chemical fertilization 120N-80P-80K was applied. The response variables measured were: height, diameter of the neck and number of leaves of the plant, number and weight of ears with and without bracts, weight of bracts, length and diameter of the ear, number of rows ear-1, grain weight of 5 ears of cobs, length, diameter and weight of the cobs, grain yield, fodder and dried grinding. To determine the profitability of the systems, the total cost (TC), total income (IT), and net income (IN) were calculated, and finally the gain by invested MXN peso (GIP). The statistical analysis included analysis of variance and test of comparisons of means by the Tukey method. It was found that the hybrid DK357 recorded the highest height, number of leaves, grain weight, length of ear and cob, yield of grain and forage, both &#8220;zacateado&#8221; and dried milled. The P4082W genotype obtained the highest weight of ear with and without bracts. The chemical fertilization favored the yield of forage zacateado, and in combination with the biological treatment, increased the yield of grain. The DK357 and P4082W hybrids grown with chemical and biological fertilization turned out to be profitable in the systems for the production of grain alone, forage grass and grain, and ground dried fodder.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[biomasa]]></kwd>
<kwd lng="es"><![CDATA[rendimiento]]></kwd>
<kwd lng="es"><![CDATA[Zea mays]]></kwd>
<kwd lng="en"><![CDATA[biomass]]></kwd>
<kwd lng="en"><![CDATA[yield]]></kwd>
<kwd lng="en"><![CDATA[Zea mays]]></kwd>
</kwd-group>
</article-meta>
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