<?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>0258-5936</journal-id>
<journal-title><![CDATA[Cultivos Tropicales]]></journal-title>
<abbrev-journal-title><![CDATA[cultrop]]></abbrev-journal-title>
<issn>0258-5936</issn>
<publisher>
<publisher-name><![CDATA[Ediciones INCA]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0258-59362020000200001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Aplicación de la herramienta de modelación DSSAT para estimar la dosis óptima de fertilizante nitrogenado para la variedad de arroz J-104]]></article-title>
<article-title xml:lang="en"><![CDATA[Application of DSSAT crop simulation model to estimate the optimum dose of nitrogen fertilizer for the rice variety J-104]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-González]]></surname>
<given-names><![CDATA[Osmel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Florido-Bacallao]]></surname>
<given-names><![CDATA[René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Varela-Nualles]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Viera]]></surname>
<given-names><![CDATA[Déborah]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Montenegro]]></surname>
<given-names><![CDATA[Ramsés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maqueira-López]]></surname>
<given-names><![CDATA[Lázaro Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morejón-Rivera]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Ciencias Agrícolas (INCA)  ]]></institution>
<addr-line><![CDATA[San José de las Lajas Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Meteorología  ]]></institution>
<addr-line><![CDATA[Casa Blanca Regla]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Unidad Científico Tecnológica de Base "Los Palacios"  ]]></institution>
<addr-line><![CDATA[Los Palacios Pinar del Río]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>41</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0258-59362020000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0258-59362020000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0258-59362020000200001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El arroz (Oryza sativa L.), es uno de los cereales de mayor producción a nivel mundial. Cuba es uno de los países más altos consumidores de América Latina; con valores de alrededor de 72 kg per cápita por año. Hasta el momento, la producción nacional sólo satisface el 50 % de las necesidades. A pesar de la gran cantidad de recursos que se destinan a la producción del cultivo del arroz, los rendimientos que actualmente se obtienen no satisfacen la demanda existente ni se justifican económicamente. El presente trabajo se desarrolló con el objetivo de aplicar la herramienta de modelación DSSAT para estimar la dosis óptima de fertilizante nitrogenado en función del rendimiento esperado de la variedad de arroz J-104. Para calibrar el modelo se evaluaron tres experimentos, en la Unidad Científico Tecnológica de Base Los Palacios, perteneciente al Instituto Nacional de Ciencias Agrícolas, en diferentes fechas de siembra. Para la simulación se realizaron las corridas del modelo para diferentes dosis de nitrógeno, variando las mismas desde 150 hasta 200 kg ha-1 , con un intervalo de 10 kg ha&#8722;1 y se mantuvieron constantes los demás parámetros del modelo. Los resultados muestran que el modelo es capaz de describir adecuadamente la dependencia de los rendimientos con el nivel de nitrógeno aplicado y la dosis recomendada para obtener los mejores rendimientos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The rice (Oryza sativa L.), is one of the cereals of greater production worldwide. Cuba is one of the highest consumer countries in Latin America; with values of around 72 kg per capita per year. So far, the national production only satisfies 50 % of the needs. In spite of the large amount of resources that are destined to the production of rice cultivation, the yields that are currently obtained do not satisfy the existing demand nor are economically justified. The present work was developed with the objective of applying the DSSAT crop simulation model to estimate the optimal nitrogen fertilizer dose based on the expected yield of the rice variety J-104. To calibrate the model, three experiments were evaluated in the Los Palacios Base Scientific Technological Unit, belonging to the National Institute of Agricultural Sciences (INCA), in different sowing dates. For the simulation, the runs of the model were made for different doses of nitrogen, varying them from 150 to 200 kg ha-1, with an interval of 10 kg ha-1 and the other parameters of the model were kept constant. The results show that the model is able to describe adequately the dependence of the yields with the level of nitrogen applied and the recommended dose to obtain the best yields.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[calibración]]></kwd>
<kwd lng="es"><![CDATA[modelos de simulación]]></kwd>
<kwd lng="es"><![CDATA[rendimiento]]></kwd>
<kwd lng="en"><![CDATA[calibration]]></kwd>
<kwd lng="en"><![CDATA[simulation models]]></kwd>
<kwd lng="en"><![CDATA[yield]]></kwd>
</kwd-group>
</article-meta>
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