<?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>S2007-09342016000300585</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Fraccionamiento de nitrógeno: eficiencia de recuperación y concentración proteica en triticale (xTriticosecale Wittmack)]]></article-title>
<article-title xml:lang="en"><![CDATA[Fractionation of nitrogen recovery efficiency and protein concentration in triticale (xTriticosecale Wittmack)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ballesteros Rodríguez]]></surname>
<given-names><![CDATA[Elia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vaca García]]></surname>
<given-names><![CDATA[Víctor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales Rosales]]></surname>
<given-names><![CDATA[Edgar Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franco Mora]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamudio González]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez Rodríguez]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México Ciencias Agropecuarias y Recursos Naturales ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Ciencias Agrícolas Centro de Investigación y Estudios Avanzados en Fitomejoramiento]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,INIFAP Campo Experimental del Valle de Toluca ]]></institution>
<addr-line><![CDATA[Zinacantepec Estado de México]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>05</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>05</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>3</numero>
<fpage>585</fpage>
<lpage>598</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000300585&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000300585&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000300585&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La eficiencia de recuperación de fertilizante nitrogenado es afectada por el momento de aplicación y la forma en que se distribuye el nitrógeno en los cultivos. El objetivo del presente estudio, fue determinar la eficiencia de recuperación de nitrógeno (ERN), aplicado al suelo en forma fraccionada en tres etapas fenológicas del cultivo, del triticale (xTriticosecale Wittmack). Se realizaron dos experimentos en campo (E1 y E2) en diferentes sitios del Estado de México, durante 2013. Los tratamientos consistieron en la aplicación fraccionada de dosis de 0, 150 y 250 kg ha-1 de nitrógeno, durante tres etapas fenológicas del cultivo: macollaje, espiguilla terminal y hoja bandera. El diseño experimental utilizado fue de bloques completos al azar con tres repeticiones. Se cuantificó el contenido de nitrógeno en grano, biomasa aérea, porcentaje de proteína y el nitrógeno recuperado por el cultivo. La ERN en grano en el E1 fue entre 29 y 34.5%, mientras que para el E2, se obtuvieron valores entre 13 y 36%. En el E1 no se observaron diferencias por el fraccionamiento de N aplicado en los tratamientos y entre cultivares; para E2, se observaron diferencias entre cultivares. El triticale presentó 0.5% de nitrógeno en su parte aérea para el E1, y 1.2% para el E2; en grano se alcanzó un valor de 1.8% para ambos experimentos. El fraccionamiento de la fertilización nitrogenada no afectó los parámetros de concentración de nitrógeno en los tejidos, ni la ERN, aún en las aplicaciones en la etapa de hoja bandera.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The recovery efficiency of nitrogen fertilizer is affected by the timing and the mood in which the nitrogen is distributed in crops. The aim of this study was to determine the recovery efficiency of nitrogen (ERN), applied to the soil in installments in three phenological stages of the crop, triticale (xTriticosecale Wittmack). Two experiments in the field (E1 and E2) at different sites of the State of Mexico were conducted during 2013. The treatments consisted of application of fractional doses of 0,150 and 250 kg ha-1 nitrogen for three phenological stages of the crop: tillering, terminal spikelet and leaf flag. The experimental design was randomized complete block design with three replications. The nitrogen content in grain, biomass, and the percentage of protein nitrogen recovered by cultivation quantitated. The grain ERN in E1 was 34.5% between 29 and while for E2, values between 13 and 36% were obtained. In the E1 no differences were observed by the fractionation of N applied in treatments and among cultivars; E2, differences between cultivars were observed. Triticale showed 0.5% nitrogen in the aerial part for E1 and E2 1.2% for grain a value of 1.8% was achieved for both experiments. Fractionation of nitrogen fertilization did not affect the parameters of nitrogen concentration in tissues, or ERN, even in applications in the flag leaf stage.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[xTriticosecale Wittmack]]></kwd>
<kwd lng="es"><![CDATA[biomasa aérea]]></kwd>
<kwd lng="es"><![CDATA[grano]]></kwd>
<kwd lng="en"><![CDATA[xTriticosecale Wittmack]]></kwd>
<kwd lng="en"><![CDATA[biomass]]></kwd>
<kwd lng="en"><![CDATA[grain]]></kwd>
</kwd-group>
</article-meta>
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