<?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>S2007-09342023000800007</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v14i8.3378</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de fertilización en el agroecosistema maíz en la cuenca de Papaloapan]]></article-title>
<article-title xml:lang="en"><![CDATA[Fertilization analysis in the corn agroecosystem in the Papaloapan basin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Escudero]]></surname>
<given-names><![CDATA[Roberto de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Romero]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lango Reynoso]]></surname>
<given-names><![CDATA[Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Inurreta Aguirre]]></surname>
<given-names><![CDATA[Héctor Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Zinacantepec Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>14</volume>
<numero>8</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342023000800007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342023000800007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342023000800007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El maíz es el principal cultivo de la canasta básica en México, así como uno de los productos de mayor importancia comercial y económica a nivel nacional. Dentro de los principales factores del manejo agronómico que determinan su nivel de productividad se encuentra la fertilización. Actualmente derivado de los conflictos bélicos entre Rusia y Ucrania, existe un desabasto y por ende una elevación del precio de los fertilizantes. Por lo anterior, en este trabajo se analizó el factor de fertilización en la cuenca del Papaloapan para analizar el efecto que ejerce la nutrición química en el cultivo de maíz en función de su productividad en t ha-1 de grano. Se simularon tres escenarios de fertilización con el uso del modelo SWAT y se mapearon los resultados de los factores analizando estadísticamente la diferencia de medias de los tratamientos por medio de una Anova la cual arrojó un valor de P= 2e-16 mostrando diferencia significativa en los efectos de los factores analizados sobre el rendimiento del cultivo. En conclusión, el factor de fertilización fue superior al de no fertilización con una diferencia entre medias de 7.8 t ha-1 de grano, lo cual indica que la ausencia de la labor de fertilización del cultivo impacta negativamente sobre la productividad de grano de maíz. Sin embargo, se encontró que la eficiencia entre media dosis y dosis completa de fertilización nitrogenada en términos de rendimiento es similar, siendo el factor de media dosis más eficiente que el anterior.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Corn is the main crop of the basic basket in Mexico and one of the products of greatest commercial and economic importance nationwide. Among the main factors of agronomic management that determine its level of productivity is fertilization. Currently, as a result of the armed conflicts between Russia and Ukraine, there is a shortage and, consequently, a rise in the price of fertilizers. Therefore, this work studied the fertilization factor in the Papaloapan basin to analyze the effect of chemical nutrition on the corn crop based on its productivity in t ha-1 of grain. Three fertilization scenarios were simulated with the use of the SWAT model, and the results of the factors were mapped by statistically analyzing the difference in means of the treatments through an Anova, which yielded a value of P= 2e-16, showing a significant difference in the effects of the factors analyzed on the yield of the crop. In conclusion, the fertilization factor was higher than the non-fertilization factor, with a difference between means of 7.8 t ha-1 of grain, which indicates that the absence of fertilization work of the crop negatively impacts the productivity of corn grain. Nonetheless, the efficiency between half and full doses of nitrogen fertilization in terms of yield was found to be similar, with the half-dose factor being more efficient than the previous one.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estudio]]></kwd>
<kwd lng="es"><![CDATA[fertilización]]></kwd>
<kwd lng="es"><![CDATA[grano de maíz]]></kwd>
<kwd lng="es"><![CDATA[SWAT]]></kwd>
<kwd lng="en"><![CDATA[corn grain]]></kwd>
<kwd lng="en"><![CDATA[fertilization]]></kwd>
<kwd lng="en"><![CDATA[study]]></kwd>
<kwd lng="en"><![CDATA[SWAT]]></kwd>
</kwd-group>
</article-meta>
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