<?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>2305-0683</journal-id>
<journal-title><![CDATA[Investigación Agraria]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. Agrar.]]></abbrev-journal-title>
<issn>2305-0683</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, UNA.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2305-06832021000200053</article-id>
<article-id pub-id-type="doi">10.18004/investig.agrar.2021.diciembre.2302691</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Fertilización con zinc en trigo, maíz y sésamo en suelos de diferentes texturas]]></article-title>
<article-title xml:lang="en"><![CDATA[Zinc fertilization in wheat, corn and sesame in soils of different textures]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Osorio Vera]]></surname>
<given-names><![CDATA[Leticia Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rasche Alvarez]]></surname>
<given-names><![CDATA[Jimmy Walter]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Blanco]]></surname>
<given-names><![CDATA[Alicia Noemi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leguizamón Rojas]]></surname>
<given-names><![CDATA[Carlos Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fatecha Fois]]></surname>
<given-names><![CDATA[Diego Augusto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Ciencias Agrarias ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Ciencias Agrarias Área Suelos y Ordenamiento Territorial]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>23</volume>
<numero>2</numero>
<fpage>53</fpage>
<lpage>62</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2305-06832021000200053&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2305-06832021000200053&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2305-06832021000200053&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El zinc (Zn) es un nutriente esencial para las plantas, sin embargo, aún existen escasos estudios de fertilización relacionados a este nutriente en Paraguay. El objetivo de este experimento fue evaluar el efecto de la aplicación de Zn sobre los cultivos de trigo, maíz y sésamo en dos suelos de diferentes texturas. La investigación fue realizada en ambiente controlado, en macetas con 5 kg de suelo, entre febrero de 2017 a enero de 2018. El diseño experimental utilizado fue completamente al azar con arreglo bifactorial, con 5 repeticiones. Los factores evaluados fueron: Factor 1, texturas de suelo (franco arenosa y arcillosa) y dosis de Zn (0, 10, 20, 40 y 80 mg kg-1 de Zn) aplicados antes de la siembra del trigo y maíz, evaluando el efecto residual del Zn en el sésamo. Se determinó el nivel de Zn en el suelo y en el tejido, la altura de planta y el peso de materia seca. La textura del suelo no influyó en el contenido de Zn en el suelo y en el tejido foliar de las plantas. El contenido de zinc en el suelo y la concentración de Zn en el tejido aumentaron en forma lineal a mayor dosis de Zn aplicada. La altura de planta fue afectada por la textura del suelo en los tres cultivos y la producción de materia seca en las gramíneas. El Zn aumentó la altura de planta de trigo y maíz, no así la del sésamo. La materia seca y la altura de planta del trigo y maíz aumentaron en el suelo arenoso, no así en el sésamo. El maíz y el trigo presentaron efecto significativo en parámetros de crecimiento en función a las dosis de Zn aplicadas en el suelo arenoso. La producción de materia seca sufrió interacción entre suelo y dosis de Zn en el trigo y maíz. La aplicación de Zn permite el aumento de los niveles de este en el suelo y en el tejido de las plantas, pero no siempre en la producción de materia seca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Zinc (Zn) is an essential nutrient for plants, however, there are still few studies related to this nutrient in Paraguay. The aim of this experiment was to evaluate the effect of the application of Zn on wheat, corn and sesame crops in two soils of different textures. The experiment was carried out in a greenhouse, in pots with 5 kg of soil, between February 2017 and January 2018. The experimental design used was completely randomized with a bifactorial arrangement, with 5 repetitions. The factors evaluated were: Factor 1, soil textures (sandy and clay loam) and Zn doses (0, 10, 20, 40 and 80 mg kg-1 of Zn) applied before sowing wheat and corn, evaluating the residual effect of Zn in sesame. The Zn level in the soil and in the tissue, the plant height and the dry matter weight were determined. The soil texture did not influence the Zn content in the soil and in the leaf tissue of the plants. The zinc content in the soil and the Zn concentration in the tissue increased linearly with the higher dose of Zn applied. Plant height was affected by soil texture in the three crops and dry matter production in grasses. Zn increased the plant height of wheat and corn, but not that of sesame. Dry matter and plant height of wheat and corn increased in sandy soil, not so in sesame. Corn and wheat showed a significant effect on growth parameters depending on the Zn doses applied to the sandy soil. Dry matter production suffered interaction between soil and Zn doses in wheat and corn. The application of Zn allows the increase of its levels in the soil and plant tissue, but not always in the production of dry matter.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Zinc en el tejido]]></kwd>
<kwd lng="es"><![CDATA[zinc en el suelo]]></kwd>
<kwd lng="es"><![CDATA[sulfato de zinc]]></kwd>
<kwd lng="es"><![CDATA[dosis de zinc]]></kwd>
<kwd lng="en"><![CDATA[Zinc in tissue]]></kwd>
<kwd lng="en"><![CDATA[zinc in soil]]></kwd>
<kwd lng="en"><![CDATA[zinc sulfate]]></kwd>
<kwd lng="en"><![CDATA[zinc dose]]></kwd>
</kwd-group>
</article-meta>
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