<?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>S2007-09342020000100125</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v11i1.1906</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Calibración y evaluación de modelos matemáticos para calcular evapotranspiración de referencia en invernaderos]]></article-title>
<article-title xml:lang="en"><![CDATA[Calibration and evaluation of mathematical models to calculate reference evapotranspiration in greenhouses]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Azua-Barron]]></surname>
<given-names><![CDATA[Martin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteaga-Ramirez]]></surname>
<given-names><![CDATA[Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Peña]]></surname>
<given-names><![CDATA[Mario Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quevedo-Nolasco]]></surname>
<given-names><![CDATA[Abel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo  ]]></institution>
<addr-line><![CDATA[Texcoco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Irrigación y posgrado IAUIA ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Posgraduados Campus Montecillo ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>1</numero>
<fpage>125</fpage>
<lpage>137</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342020000100125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342020000100125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342020000100125&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Con la evapotranspiración de referencia (ETo) y los Kc de un cultivo se estiman y planean los volúmenes de agua de riego y frecuencia de aplicación. En México la superficie de agricultura protegida se incrementa de 20 al 25% anualmente, 44% son invernaderos y predominan las unidades de producción menores a 0.5 ha, lo que sugiere que tienen tecnología limitada. Para los invernaderos no hay un método estándar para estimar la ETo como el de Penman-Monteith para campo abierto. Con una estación automática Campbell instalada dentro de un invernadero en los terrenos de la Universidad Autónoma Chapingo, se midieron dos series de datos meteorológicos. Con la primera se modificaron los parámetros de varios modelos reportados en la literatura para calcular la ETo, unos basados en temperatura (Baier-Robertson, Romanenko y Hargreaves) y otros en radiación (Abtew, Jensen-Haise, Caprio, Irmak, Sthepen, Priestley-Taylor y Makkink) y con la segunda se evaluaron todos. La ETo obtenida por cada uno de los métodos con sus parámetros modificados, se comparó con la ETo calculada con el método de Penman-Monteith, determinándose que los modelos de radiación mostraron mejores ajustes que los de temperatura. En la evaluación los basados en temperatura mostraron ajustes no adecuados con R2 menores a 0.461 y RSE mayores a 0.31 mm d-1 y los de radiación tuvieron R2 mayores a 0.909 y RSE menores a 0.21. El modelo modificado de Abtew fue el mejor para estimar la ETo en invernadero con un R2 de 0.947 y un RSE de 0.06 mm d-1.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract With the reference evapotranspiration (ETo) and the Kc of a crop, the volumes of irrigation water and frequency of application are estimated and planned. In Mexico, the area of protected agriculture increases from 20 to 25% annually, 44% are greenhouses and production units less than 0.5 ha predominate, suggesting that they have limited technology. For greenhouses there is no standard method for estimating ETo such as Penman-Monteith for open field. With a Campbell automatic station installed inside a greenhouse on the grounds of the Chapingo Autonomous University, two series of meteorological data were measured. With the first one, the parameters of several models reported in the literature were modified to calculate ETo, some based on temperature (Baier-Robertson, Romanenko and Hargreaves) and others on radiation (Abtew, Jensen-Haise, Caprio, Irmak, Sthepen, Priestley-Taylor and Makkink) and with the second all were evaluated. The ETo obtained by each of the methods with its modified parameters was compared with the ETo calculated with the Penman-Monteith method, determining that the radiation models showed better adjustments than those of temperature. In the evaluation, those based on temperature showed inadequate adjustments with R2 less than 0.461 and RSE greater than 0.31 mm d-1 and those of radiation had R2 greater than 0.909 and RSE less than 0.21. The modified Abtew model was the best for estimating ETo in a greenhouse with an R2 of 0.947 and an RSE of 0.06 mm d-1.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[manejo de riego en invernadero]]></kwd>
<kwd lng="es"><![CDATA[Penman-Monteith]]></kwd>
<kwd lng="es"><![CDATA[requerimiento de riego]]></kwd>
<kwd lng="en"><![CDATA[greenhouse irrigation management]]></kwd>
<kwd lng="en"><![CDATA[irrigation requirement,Penman-Monteith]]></kwd>
</kwd-group>
</article-meta>
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