<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342018000200281</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v9i2.1071</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto de los biofertilizantes sobre la asimilación de nitrógeno por el cultivo de trigo]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of biofertilizers on the assimilation of nitrogen by the wheat crop]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Grageda-Cabrera]]></surname>
<given-names><![CDATA[Oscar Arath]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Figueroa]]></surname>
<given-names><![CDATA[Sarahyt Santamaría]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vera-Nuñez]]></surname>
<given-names><![CDATA[José Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguirre-Medina]]></surname>
<given-names><![CDATA[Juan Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peña-Cabriales]]></surname>
<given-names><![CDATA[Juan José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,INIFAP Campo Experimental Bajío ]]></institution>
<addr-line><![CDATA[Celaya Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y de Estudios Avanzados ]]></institution>
<addr-line><![CDATA[Irapuato Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>2</numero>
<fpage>281</fpage>
<lpage>289</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342018000200281&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342018000200281&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342018000200281&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los cultivos absorben en promedio de 20 a 40% del fertilizante aplicado, el porcentaje restante se pierde del sistema agrícola por diversos mecanismos, ocasionando cuantiosas pérdidas económicas y contaminación ambiental. Entre los beneficios del uso de microorganismos en la agricultura está su capacidad para mejorar la asimilación de nutrimentos. Se realizó un experimento en campo cuyo objetivo fue evaluar el efecto de la inoculación de biofertilizantes bacterianos y fúngicos sobre la eficiencia de asimilación del fertilizante nitrogenado en el cultivo de trigo. El diseño experimental fue de bloques completos al azar con cuatro repeticiones y nueve tratamientos de biofertilización empleando la técnica de dilución isotópica de 15N para determinar el N en la planta derivado del fertilizante y el porcentaje de utilización del fertilizante N. La fertilización química produjo los mayores rendimientos de grano y asegura su calidad. La inoculación del trigo con HVA incrementó significativamente el rendimiento de grano hasta en 1 291 kg ha-1, la cantidad de N en la planta proveniente del fertilizante hasta en 15 kg y la eficiencia de utilización del fertilizante nitrogenado hasta en 11% en comparación con el testigo sin inocular. Hubo diferencias significativas en la interacción planta-microorganismo en la producción de biomasa y asimilación de N.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The crops absorb an average of 20 to 40% of the applied fertilizer, the remaining percentage is lost from the agricultural system by various mechanisms, causing considerable economic losses and environmental contamination. Among the benefits of the use of microorganisms in agriculture is their ability to improve the assimilation of nutrients. A field experiment was carried out whose objective was to evaluate the effect of inoculation of bacterial and fungal biofertilizers on the efficiency of assimilation of nitrogen fertilizer in wheat cultivation. The experimental design was randomized complete blocks with four repetitions and nine biofertilization treatments using the 15N isotopic dilution technique to determine the N in the fertilizer derived plant and the fertilizer utilization percentage N. The chemical fertilization produced the highest grain yields and ensures its quality. The inoculation of wheat with HVA significantly increased the yield of grain up to 1 291 kg ha-1, the amount of N in the plant from the fertilizer up to 15 kg and the utilization efficiency of nitrogen fertilizer up to 11% compared to the witness without inoculating. There were significant differences in plant-microorganism interaction in biomass production and assimilation of N.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Triticum aestivum]]></kwd>
<kwd lng="es"><![CDATA[dilución isotópica 15N]]></kwd>
<kwd lng="es"><![CDATA[fertilizantes]]></kwd>
<kwd lng="es"><![CDATA[inoculantes]]></kwd>
<kwd lng="en"><![CDATA[Triticum aestivum]]></kwd>
<kwd lng="en"><![CDATA[15N isotope dilution]]></kwd>
<kwd lng="en"><![CDATA[fertilizers]]></kwd>
<kwd lng="en"><![CDATA[inoculants]]></kwd>
</kwd-group>
</article-meta>
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