<?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>2071-0054</journal-id>
<journal-title><![CDATA[Revista Ciencias Técnicas Agropecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cie Téc Agr]]></abbrev-journal-title>
<issn>2071-0054</issn>
<publisher>
<publisher-name><![CDATA[Universidad Agraria de La Habana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2071-00542023000400005</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Variability of Agroclimatic Factors and Irrigation Rate in Protected Cultivation of Pepper (Capsicum annuum)]]></article-title>
<article-title xml:lang="es"><![CDATA[Variabilidad de factores agroclimáticos y gasto de riego en cultivo protegido del pimiento (Capsicum annuum)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Bravo]]></surname>
<given-names><![CDATA[Elvis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Placeres-Remior]]></surname>
<given-names><![CDATA[Arley]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carbonell-Saavedra]]></surname>
<given-names><![CDATA[Emily]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Rodríguez]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Cueto]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Ciencias Agrícolas Departamento de Ingeniería Agrícola]]></institution>
<addr-line><![CDATA[ Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica de Temuco Facultad Técnica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Agraria de La Habana Facultad de Ciencias Técnicas ]]></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>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>32</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2071-00542023000400005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2071-00542023000400005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2071-00542023000400005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective of the present work was to find the relationship between uniformity of irrigation flow and agro-climatic factors with the yield, during pepper growing in greenhouse. The study was carried out in brown soil with carbonates, in a module of three greenhouses, Granma-1 Model, placed at &#8220;Valle del Yabú" Agricultural Company, in Villa Clara Province. In each greenhouse, six soil beds were formed with three irrigation branches with non-compensating Twin Drip drippers. For the study, 27 sampling points were taken, evenly distributed in the three greenhouses. The wind speed, temperature and relative humidity were measured with the Kestrel 5000 micro weather station. For the sampling of dripper flow, rain gauges were located at each experimental point and the irrigation coefficient of uniformity was determined. As a result, wind speed, relative humidity and temperature, inside the greenhouse, showed spatial variability values that satisfy the crop requirements. The coefficient of uniformity of irrigation rate was considered as acceptable with value of 71.2%, as a consequence of the obstruction of drippers, denoting a wide variability of irrigation rate without the presence of water flood or dry soil.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El presente trabajo tuvo como objetivo determinar la relación entre la uniformidad del caudal de riego y la variabilidad de los factores agroclimáticos con el rendimiento durante el cultivo del pimiento en casas de cultivo. El estudio se llevó a cabo en un módulo de tres casas de cultivo protegido modelo Granma-1, perteneciente a la Empresa Agropecuaria "Valle del Yabú", en la provincia Villa Clara sobre suelo pardo con carbonatos. Dentro de cada casa se conformaron seis canteros con tres ramales de riego con goteros no autocompensantes modelo Twin Drip. Para el estudio se tomaron 27 puntos de muestreo, distribuidos uniformemente en las tres casas de cultivo. La velocidad del viento, temperatura y humedad relativa se midieron con la micro estación meteorológica Kestrel 5000. Para el muestreo del gasto de los goteros se instalaron pluviómetros en cada punto experimental y se determinó el coeficiente de uniformidad. Como resultado se evidenció que la velocidad del viento, la humedad relativa y la temperatura en el interior de la casa de cultivo mostraron valores de variabilidad espacial que satisfacen los requerimientos del cultivo. El coeficiente de uniformidad del gasto de riego obtuvo un valor de 71,2%, catalogándose de aceptable, como consecuencia de la obstrucción de goteros y denotando una amplia variabilidad del gasto en el área cultivada sin la presencia de encharcamiento ni zonas de suelo seco.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Soil]]></kwd>
<kwd lng="en"><![CDATA[Drip]]></kwd>
<kwd lng="en"><![CDATA[Wind]]></kwd>
<kwd lng="en"><![CDATA[Temperature]]></kwd>
<kwd lng="en"><![CDATA[Moisture]]></kwd>
<kwd lng="es"><![CDATA[suelo]]></kwd>
<kwd lng="es"><![CDATA[goteo]]></kwd>
<kwd lng="es"><![CDATA[viento]]></kwd>
<kwd lng="es"><![CDATA[temperatura]]></kwd>
<kwd lng="es"><![CDATA[humedad]]></kwd>
</kwd-group>
</article-meta>
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