<?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>2301-1548</journal-id>
<journal-title><![CDATA[Agrociencia (Uruguay)]]></journal-title>
<abbrev-journal-title><![CDATA[Agrociencia Uruguay]]></abbrev-journal-title>
<issn>2301-1548</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Agronomía - Instituto Nacional de Investigación Agropecuaria]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2301-15482018000200013</article-id>
<article-id pub-id-type="doi">10.31285/agro.22.2.4</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Producción de biomasa de cultivos lignocelulósicos según el número de cortes]]></article-title>
<article-title xml:lang="en"><![CDATA[Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Viana Otero]]></surname>
<given-names><![CDATA[María Virginia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Siri Prieto]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Investigadora independiente  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de la República Facultad de Agronomía Departamento de Producción Vegetal]]></institution>
<addr-line><![CDATA[Paysandú ]]></addr-line>
<country>Uruguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2018</year>
</pub-date>
<volume>22</volume>
<numero>2</numero>
<fpage>13</fpage>
<lpage>23</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S2301-15482018000200013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S2301-15482018000200013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S2301-15482018000200013&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En Uruguay se plantea diversificar la matriz energética a través de la producción de biomasa. Las especies Arundo donax L., Panicum virgatum L.y Pennisetum purpureum L. Schumach serían una opción. Los objetivos de este trabajo fueron comparar su producción de biomasa y energía, con diferentes manejos de corte. Los cultivos se implantaron en la primavera del 2007 y se evaluaron desde enero de 2012 hasta agosto de 2013. Se realizaron dos tratamientos de cosecha: corte en enero y agosto; y un solo corte en agosto. Arundo donax produjo 18,6 Mg ha-1 año-1, más que P. virgatum y P. purpureum, que produjeron respectivamente 15,0 y 14,6 Mg ha-1 año-1 de materia seca. En A.donax y P. virgatum un solo corte produjo más que dos cortes. En P. purpureum la diferencia entre tratamientos fue significativa en 2012 y el corte de agosto produjo más que el de enero. Arundo donax y P. purpureum presentaron mayores contenidos de cenizas y los valores de agosto fueron menores a enero, en P. virgatum no hubo diferencias entre cosechas. La mayor producción de energía se logró con A. donax (407 GJ ha-1 año-1) al cosecharlo una sola vez. Panicum virgatum fue el cultivo de menor producción de energía con un solo corte (292 GJ ha-1 año-1), pero tuvo el menor contenido de humedad (15 %) y cenizas (4,9 %). Con una sola cosecha, en agosto, se lograría un material con menor contenido de cenizas y humedad, en las tres especies.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: The diversification of the energy matrix through biomass production is being evaluated in Uruguay. The species Arundo donax, Panicum virgatum and Pennisetum purpureum would be an option. The objective of this paper was to compare their biomass and energy production, with different cutting moments. The crops were planted in the spring of 2007 and evaluated from January 2012 to August 2013. Two harvest treatments were performed: cuts in January and August; and a single cut in August. Arundo donax produced 18.6 Mg ha-1 year-1 dry matter, more than P. virgatum and P. purpureum, which produced 15.0 and 14.6 Mg ha-1 year-1 dry matter, respectively. In A. donax and P. virgatum, the single cut treatment produced more than two cuts. In P. purpureum, the difference between treatments was significant in 2012, and the August cut produced more than the January cut. Arundo donax and P. purpureum presented higher ash contents, and the August values were lower than the January ones. In P. virgatum there were no differences between harvests. The highest energy production was achieved with A. donax (407 GJ ha-1 year-1) by harvesting it once. Panicum virgatum was the crop of the lowest energy production with a single cut (292 GJ ha-1 year-1), but it had the lowest moisture (15 %) and ashes (4.9 %) content. With a single harvest, in August, a material with lower ash and moisture content would be achieved in all three species.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Arundo donax]]></kwd>
<kwd lng="es"><![CDATA[cultivos energéticos]]></kwd>
<kwd lng="es"><![CDATA[Panicum virgatum]]></kwd>
<kwd lng="es"><![CDATA[Pennisetum purpureum]]></kwd>
<kwd lng="en"><![CDATA[Arundo donax]]></kwd>
<kwd lng="en"><![CDATA[energy crops]]></kwd>
<kwd lng="en"><![CDATA[Panicum virgatum]]></kwd>
<kwd lng="en"><![CDATA[Pennisetum purpureum]]></kwd>
</kwd-group>
</article-meta>
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