<?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>S0258-59362023000300004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efectividad agronómica y socioeconómica del manejo de arvenses por métodos mecánicos en el arroz de riego]]></article-title>
<article-title xml:lang="en"><![CDATA[Agronomic and socioeconomic effectiveness of the weed management by mechanical methods at irrigated rice crop]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Viera]]></surname>
<given-names><![CDATA[Deborah]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Socorro-Quesada]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Betancourt]]></surname>
<given-names><![CDATA[Teodoro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galbán-Méndez]]></surname>
<given-names><![CDATA[José Marcelino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Ciencias Agrícolas  ]]></institution>
<addr-line><![CDATA[San José de las Lajas Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Agraria de La Habana  ]]></institution>
<addr-line><![CDATA[San José de las Lajas Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>44</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0258-59362023000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0258-59362023000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0258-59362023000300004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El presente trabajo tuvo como objetivo evaluar el efecto agronómico y socioeconómico de diferentes métodos de siembra directa, en combinación con el manejo de arvenses, por métodos mecánicos, en el cultivo del arroz de riego. Para ello, se condujeron experimentos en las condiciones de la producción popular de arroz en el municipio Madruga (provincia Mayabeque, Cuba) sobre suelo Gley Vértico Crómico, durante los meses de mayo a agosto. Se utilizó un diseño cuasiexperimental con tres tratamientos y cuatro repeticiones, donde se evaluó el rendimiento agrícola al 14 % de humedad del grano y sus componentes. El procesamiento estadístico consistió en el cálculo de los intervalos de confianza de las medias por tratamiento de las variables evaluadas, para un nivel de confianza del 95 %. En el análisis económico; se determinaron los Ingresos, el Costo de Producción, la Ganancia y la Relación Beneficio-Costo. Desde la perspectiva social, la socialización de los resultados y la retroalimentación se realizaron en un taller participativo con los actores locales de la innovación. Los resultados demostraron que el tratamiento T3 (SDM) permitió el incremento del rendimiento agrícola del arroz un 21 %, por encima de la Tecnología Convencional y alcanzó los mejores resultados económicos. En el taller participativo, los actores identificaron los aspectos que podrían incidir en la adopción de la mejor alternativa tecnológica. Se sugiere profundizar en el efecto de estas alternativas tecnológicas sobre las variables de crecimiento y desarrollo del cultivo del arroz de riego.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The present work aimed to evaluate the agronomic and socioeconomic effect of different direct seeding methods in combination with weeds management, by mechanical methods, in irrigated rice crop. Therefore, experiments were conducted in conditions of popular rice production in Madruga municipality (Mayabeque province, Cuba) on a Gley Vertic Chromic soil, during May to August. It was used a quasi-experimental design with three treatments and four repetitions, where crop yield was evaluated at 14 % grain humidity and its components. The statistical processing consisted of calculating the means confidence intervals by treatments of the variables evaluated, for a 95 %confidence level. In the economic analysis; the Gross Return, Production Cost of, the Net Return and the Benefit-Cost Ratio were determined. From the social perspective, the results socialization and the feedback were carried out in a participatory workshop with the local innovation actors. The results showed that the T3 treatment (SDM) allowed an increase in crop yield of rice by 21 %, above the Conventional Technology and achieved the best economic results. In the participatory workshop, actors identified the aspects that could influence the adoption of the best technological alternative. It is suggested to deepen the effect of these technological alternatives on growth and development variables of the irrigated rice crop.]]></p></abstract>
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<kwd lng="es"><![CDATA[investigación sobre sistemas de producción agrícola]]></kwd>
<kwd lng="en"><![CDATA[cultural control]]></kwd>
<kwd lng="en"><![CDATA[farming systems research]]></kwd>
<kwd lng="en"><![CDATA[pilot farms]]></kwd>
<kwd lng="en"><![CDATA[waterlogging]]></kwd>
</kwd-group>
</article-meta>
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