<?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>S2007-09342024000700102</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v15i7.2838</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio comparativo de dos ecuaciones con respecto a Penman-Monteith FAO56 en Guanajuato]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparative study of two equations with respect to FAO56 Penman-Monteith in Guanajuato]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Díaz]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteaga-Ramírez]]></surname>
<given-names><![CDATA[Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sangerman-Jarquín]]></surname>
<given-names><![CDATA[Dora Ma.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Francisco-Catarina]]></surname>
<given-names><![CDATA[Magdalena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental Valle de México ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2024</year>
</pub-date>
<volume>15</volume>
<numero>7</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342024000700102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342024000700102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342024000700102&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La estimación de la evapotranspiración de referencia (ET0) ha sido utilizada ampliamente en ingeniería de riego para calcular los requerimientos de agua de los cultivos. La correcta estimación de la ET0 representa un paso clave en la planeación y manejo de los recursos hídricos. El método de Penman-Monteith FAO56 es recomendado por expertos como método estándar para estimar ET0, con la desventaja de que necesita de muchos datos de variables meteorológicas para su ejecución. El objetivo de este estudio fue estimar la evapotranspiración de referencia diaria por los métodos de Hargreaves-Samani (H-S) y Priestley-Taylor (P-T) durante el periodo 2001-2006 para cinco estaciones meteorológicas automáticas en el estado de Guanajuato, los resultados fueron comparados con los del método de Penman-Monteith FAO56 (P-M FAO56) para seleccionar el método alternativo más preciso y determinar la distancia a partir de cualquier estación, a la cual se pueden considerar válidos los datos de ET0 estimados con cada uno de los métodos. La raíz del cuadrado medio del error (RMSE) y el coeficiente de determinación (R2) se utilizaron para evaluar el desempeño de los métodos con respecto a P-M FAO56. Como resultado se encontró que Hargreaves-Samani es el mejor método alternativo para estimar ET0 en las cinco estaciones, en el estado de Guanajuato. Las distancias que se determinaron a partir de una estación donde los datos de un método son válidos son: 93.02, 124.65 y 36.44 km para H-S, P-T y P-M FAO56, respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The estimation of reference evapotranspiration (ET0) has been widely used in irrigation engineering to calculate crop water requirements. The correct estimation of ET0 represents a key step in planning and managing water resources. Experts recommend the FAO56 Penman-Monteith method as a standard method for estimating ET0, with the disadvantage that it requires a lot of data on meteorological variables for its execution. This study aimed to estimate the daily reference evapotranspiration by the Hargreaves-Samani and Priestley-Taylor methods during the 2001-2006 period for five automatic weather stations in the state of Guanajuato; the results were compared with those of the FAO56 Penman-Monteith (FAO56 P-M) method to select the most accurate alternative method and determine the distance from any station at which the ET0 data estimated with each of the methods were considered valid. The root means square error (RMSE) and the coefficient of determination (R2) were used to evaluate the performance of the methods compared to the FAO56 P-M. As a result, it was found that Hargreaves-Samani is the best alternative method to estimate ET0 in the five stations in the state of Guanajuato. The distances determined from a station where the data of a method are valid are 93.02, 124.65, and 36.44 km for Hargreaves-Samani, Priestley-Taylor, and FAO56 Penman-Monteith, respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[evapotranspiración de referencia]]></kwd>
<kwd lng="es"><![CDATA[Hargreaves-Samani]]></kwd>
<kwd lng="es"><![CDATA[Priestley-Taylor]]></kwd>
<kwd lng="en"><![CDATA[Hargreaves-Samani]]></kwd>
<kwd lng="en"><![CDATA[Priestley-Taylor]]></kwd>
<kwd lng="en"><![CDATA[reference evapotranspiration]]></kwd>
</kwd-group>
</article-meta>
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