<?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>S0258-59362021000400011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Influencia de la época de producción en la estabilidad microbiológica del biofertilizante Azofert®-S]]></article-title>
<article-title xml:lang="en"><![CDATA[Influence of the production season on the microbiological stability of Azofert®-S biofertilizer]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Mena]]></surname>
<given-names><![CDATA[Belkis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nápoles-García]]></surname>
<given-names><![CDATA[María Caridad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Forte]]></surname>
<given-names><![CDATA[Ionel]]></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>
<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>42</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0258-59362021000400011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0258-59362021000400011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0258-59362021000400011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo del presente estudio fue evaluar la estabilidad en el tiempo de la cepa Bradyrhizobium elkanii ICA 8001, en inoculantes de Azofert®-S producidos en diferentes momentos del año. Se produjeron inoculantes en las cuatro estaciones del año y se almacenaron a temperatura ambiente. Se determinó la pureza y la concentración de la cepa bacteriana cada 30 días, durante 180 días. Los inoculantes producidos en otoño e invierno mantuvieron una concentración de la cepa B. elkanii ICA 8001 de 108 UFC por mililitro de inoculante durante 120 días, la cual resulta óptima para su uso en campo. Conocer el tiempo de caducidad del Azofert®-S permite contar con una estrategia de producción del inoculante durante todo el año, para la biofertilización del cultivo de la soya.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective was to evaluate the concentration of strain Bradyrhizobium elkanii ICA 8001 strain in Azofert®-S inoculants produced at different year seasons. Inoculants were produced in the four seasons of the year and stored at room temperature. Purity and bacterial strain concentration were determined every 30 days for 180 days. Inoculants produced in fall and winter maintained a strains concentration 108 CFU mL-1 for 120 days, which is optimal for field use. Knowing the effectiveness time of Azofert®-S would establish an inoculant production strategy that ensures the biofertilization of soybean.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Bradyrhizobium]]></kwd>
<kwd lng="es"><![CDATA[concentración]]></kwd>
<kwd lng="es"><![CDATA[calidad]]></kwd>
<kwd lng="es"><![CDATA[temperatura]]></kwd>
<kwd lng="en"><![CDATA[Bradyrhizobium]]></kwd>
<kwd lng="en"><![CDATA[concentration]]></kwd>
<kwd lng="en"><![CDATA[quality]]></kwd>
<kwd lng="en"><![CDATA[temperature]]></kwd>
</kwd-group>
</article-meta>
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