<?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>0123-3475</journal-id>
<journal-title><![CDATA[Revista Colombiana de Biotecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. biotecnol]]></abbrev-journal-title>
<issn>0123-3475</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biotecnología, Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-34752020000100079</article-id>
<article-id pub-id-type="doi">10.15446/rev.colomb.biote.v22n1.69716</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Inoculantes microbianos incorporados al cultivo de Ipomoea batatas L. en el Valle del Sinú]]></article-title>
<article-title xml:lang="en"><![CDATA[Microbial inoculants incorporated in Ipomoea batatas L. crop in the Sinú Valley]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez López]]></surname>
<given-names><![CDATA[Diana Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Pazos]]></surname>
<given-names><![CDATA[Jazmín Vanessa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luna Castellanos]]></surname>
<given-names><![CDATA[Lily Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Peña]]></surname>
<given-names><![CDATA[Joaquín Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espitia Montes]]></surname>
<given-names><![CDATA[Amaury Aroldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria-Agrosavia  ]]></institution>
<addr-line><![CDATA[Cereté Montería]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria-Agrosavia  ]]></institution>
<addr-line><![CDATA[Cereté Montería]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria-Agrosavia  ]]></institution>
<addr-line><![CDATA[Cereté Montería]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria-Agrosavia  ]]></institution>
<addr-line><![CDATA[Cereté Montería]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria-Agrosavia  ]]></institution>
<addr-line><![CDATA[Cereté Montería]]></addr-line>
<country>Colombia</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>22</volume>
<numero>1</numero>
<fpage>79</fpage>
<lpage>86</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-34752020000100079&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-34752020000100079&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-34752020000100079&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La batata (Ipomoea batatas L.) se cultiva en todo el mundo como fuente de carbohidratos, y su producción comercial requiere un alto aporte de fertilizantes químicos, lo cual eleva los costos de producción. Los inoculantes microbianos, se emplean como una fuente alternativa de nutrición vegetal. El objetivo de esta investigación fue evaluar el efecto de Pseudomonas denitrificans IBVS2 y Azotobacter vinelandii IBVS13 con diferentes niveles fertilización química nitrogenada en el cultivo de batata en la microrregión del Valle del Sinú en el Caribe Colombiano. Para los montajes de los experimentos se utilizó un diseño completamente aleatorizado, ocho tratamientos y tres repeticiones usando como material vegetal plántulas obtenidas in vitro endurecidas en invernadero. Los resultados demostraron que la cepa Azotobacter vinelandii IBVS13 con un 75% de fertilización nitrogenada (FN) mejoró la capacidad de acumulación de materia seca en los tubérculos de batata, generando incrementos de 6,65 t/ha respecto al testigo químico y 3,18 t/ha en relación con el testigo absoluto, garantizando un incremento del rendimiento. Así mismo, el contenido de proteína bruta aumentó 13,93% al realizar la inoculación de las plantas con esta cepa. En el mismo sentido, la cepa Pseudomonas denitrificans IBVS2+ fertilización nitrogenada 50% presentó aumentos en la variable de fibra cruda 31,75% respecto al testigo absoluto, contribuyendo de manera eficaz como bioestimulante microbiano en la agricultura.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Sweet potatoes (Ipomoea batatas L.) are grown worldwide as a source of carbohydrates, and their commercial production requires a high contribution of chemical fertilizers, which increases production costs. Microbial inoculants are used as an alternative source of plant nutrition. The objective of this research was to evaluate the effect of Pseudomonas denitrificans IBVS2 and Azotobacter vinelandii IBVS13 with different levels of nitrogen chemical fertilization in the sweet potato crop in the microregion of the Sinú Valley in the Colombian Caribbean. A completely randomized design was used for the experiment development, eight treatments was evaluated and three repetitions were carried out. In vitro hardened seedlings was used as a plant material. The results showed that the Azotobacter vinelandii IBVS1 3 strain with 75% nitrogen fertilization (FM) improved the accumulation capacity of dry matter in sweet potato roots, generating increases of 6.65 t / ha compared to the chemical control and 3.18 t / ha in relation to the absolute control, guaranteeing an increase in yield. The crude protein content was increased in 13.93% when inoculating the plants with this strain. In the same way, with the inoculation of strain Pseudomonas denitrificans IBVS2 + 50% nitrogen fertilization the crude fiber variable was increased in 31.75% compared to the absolute control, contributing effectively as a microbial biostimulant in agriculture.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Rizobacteria]]></kwd>
<kwd lng="es"><![CDATA[bioestimulante]]></kwd>
<kwd lng="es"><![CDATA[Pseudomonas denitrificans]]></kwd>
<kwd lng="es"><![CDATA[Azotobacter vinelandii]]></kwd>
<kwd lng="es"><![CDATA[Valle del Sinú]]></kwd>
<kwd lng="en"><![CDATA[Rhizobacteria]]></kwd>
<kwd lng="en"><![CDATA[bioestimulant]]></kwd>
<kwd lng="en"><![CDATA[Pseudomonas denitrificans]]></kwd>
<kwd lng="en"><![CDATA[Azotobacter vinelandii]]></kwd>
<kwd lng="en"><![CDATA[Valle del Sinú]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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