<?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>S2007-09342017000801733</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v8i8.698</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Emisión de gases de efecto invernadero de la fertilización nitrogenada en México]]></article-title>
<article-title xml:lang="en"><![CDATA[Emission of greenhouse gases from nitrogen fertilization in Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Estrada]]></surname>
<given-names><![CDATA[Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camacho Amador]]></surname>
<given-names><![CDATA[Maricela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,INIFAP Campo Experimental Valle de México ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Posgrado de Economía Agrícola y de los Recursos Naturales ]]></institution>
<addr-line><![CDATA[Chapingo Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>8</numero>
<fpage>1733</fpage>
<lpage>1745</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342017000801733&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342017000801733&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342017000801733&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La agricultura mexicana es una fuente importante de gases de efecto invernadero, principalmente a través de la fertilización nitrogenada que emite un importante gas de efecto invernadero: el óxido nitroso, el cual representa 50.4% de las emisiones del sector en unidades equivalentes de bióxido de carbono. No obstante, la importancia de tales emisiones, no se dispone de estimaciones fidedignas. El objetivo de ésta investigación fue cuantificar las emisiones de gases de efecto invernadero producidas por la fertilización nitrogenada en la agricultura mexicana, durante el período 1980-2014. El método seguido para la cuantificación de esas emisiones es el propuesto por: la agencia para la protección ambiental de Estados Unidos de Norteamérica (EE.UU), el Panel Intergubernamental del Cambio Climático y la Organización para la Alimentación y la Agricultura de las Naciones Unidas. Se cuantificaron las aplicaciones totales de los distintos fertilizantes nitrogenados en la agricultura mexicana de 1980 a 2014 y se estimaron las emisiones de óxido nitroso y su transformación en unidades equivalentes de bióxido de carbono. Se concluyó que el uso de fertilizantes químicos en la agricultura mexicana es ineficiente, debido a que no se toman en cuenta los costos de las emisiones de óxido nitroso a la hora de decidir la cantidad de nitrógeno que se aplicará por hectárea. En consecuencia, se deben cuantificar los costos de las emisiones de óxido nitroso producidas por los fertilizantes químicos nitrogenados y definir, con base en ello, una política eficiente para la aplicación de fertilizantes y para el abatimiento de las emisiones que producen.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Mexican agriculture is an important source of greenhouse gases, mainly through nitrogen fertilization that emits an important greenhouse gas: nitrous oxide, which represents 50.4% of the emissions of the sector in equivalent units of carbon dioxide. However, the importance of such emissions, reliable estimates are not available. The objective of this research was to quantify the emissions of greenhouse gases produced by nitrogen fertilization in Mexican agriculture, during the period 1980-2014. The method followed for the quantification of these emissions is the one proposed by: the environmental protection agency of the United States of America (USA), the Intergovernmental Panel on Climate Change and the Food and Agriculture Organization of the United Nations. The total applications of the different nitrogenous fertilizers in Mexican agriculture from 1980 to 2014 were quantified and nitrous oxide emissions and their conversion into equivalent units of carbon dioxide were estimated. It was concluded that the use of chemical fertilizers in Mexican agriculture is inefficient, because the costs of nitrous oxide emissions are not taken into account when deciding the amount of nitrogen to be applied per hectare. Consequently, the costs of nitrous oxide emissions produced by nitrogenous chemical fertilizers must be quantified and, based on this, an efficient policy for the application of fertilizers and for abatement of the emissions they produce must be defined.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agricultura mexicana]]></kwd>
<kwd lng="es"><![CDATA[fertilizantes nitrogenados]]></kwd>
<kwd lng="es"><![CDATA[óxido nitroso]]></kwd>
<kwd lng="en"><![CDATA[Mexican agriculture]]></kwd>
<kwd lng="en"><![CDATA[nitrogen fertilizers]]></kwd>
<kwd lng="en"><![CDATA[nitrous oxide]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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