<?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>1405-3195</journal-id>
<journal-title><![CDATA[Agrociencia]]></journal-title>
<abbrev-journal-title><![CDATA[Agrociencia]]></abbrev-journal-title>
<issn>1405-3195</issn>
<publisher>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-31952007000700797</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rentabilidad de la fertilización al establecimiento de plantaciones de Eucalyptus globulus]]></article-title>
<article-title xml:lang="en"><![CDATA[Profitability of fertilization at establishment of Eucalyptus globulus plantations]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerra]]></surname>
<given-names><![CDATA[Emilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Drake]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Católica de Temuco Facultad de Recursos Naturales Escuela de Ciencias Forestales]]></institution>
<addr-line><![CDATA[Temuco ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Córdoba  ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2007</year>
</pub-date>
<volume>41</volume>
<numero>7</numero>
<fpage>797</fpage>
<lpage>804</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-31952007000700797&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-31952007000700797&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-31952007000700797&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La aplicación de fertilizantes en plantaciones de Eucalyptus globulus Labill es importante para aumentar su productividad. Por tanto, se determinó la rentabilidad de dosis de fertilización de nitrógeno y fósforo en el establecimiento, en una plantación de cinco años en el sector costero de la VIII Región de Chile. Los tratamientos (T) fueron: T1 (N50P50); T2 (N100P100); T3 (N200P100); T4 (N200P200); T5 (N300P200); T6 (N300P400); T7 (N300P400 + K2O); T8 (N300P400+ FGC); y un testigo T0 (N0P0). Las variables proyectadas a la edad de cosecha fueron el crecimiento volumétrico de los árboles y la rentabilidad (valor actual neto, VAN; tasa interna de retorno, TIR; valor potencial del suelo, VPS). Se encontraron diferencias significativas (p 0.05; Tukey) en todas las variables estudiadas. Los mejores tratamientos en crecimiento volumétrico al momento de la cosecha fueron T3 y T8. Para rentabilidad, los mejores valores de VAN fueron US$ 717 ha-1 y US$ 530 ha-1 para T3 y T1, donde la fertilización produjo un aumento de US$ 415 ha-1 y US$ 228 ha-1. Se concluye que al aplicar bajas dosis de fertilización (T3 y T1), se obtienen aumentos en la productividad y rentabilidad del cultivo; pero aumentar la dosis de fertilización implicaría disminuir la rentabilidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Application of fertilizers in plantations of Eucalyptus globulus Labill plantations is essential for increasing productivity. Thus, the economic feasibility of nitrogen and phosphorus fertilizer dosage at establishment was determined in a five-year-old plantation in coastal sector of the VIII Region of Chile. The treatments (T) were T1 (N50P50); T2 (N100P100); T3 (N200P100; T4 (N200P200); T5 (N300P200); T6 (N300P400); T7 (N300P400 + K2O), T8 (N300P400 + FGC); and a control T0 (N0P0). The variables projected to the age of harvest were volumetric growth of the trees and profitability (net present value, NPV; internal rate of return, IRR; potential land value, PLV). Significant differences (p 0.05; Tukey) were found for all of the variables studied. The best treatments in volumetric growth at harvest were T3 and T8. As for profitability, the best NPV values were US$ 717 ha-1 and US$530 ha-1 for T3 and T1, where the fertilization produced an increase of US $415 ha-1 and US$ 228 ha-1. It is concluded that applying low dosages of fertilization (T3 and T1), increases in productivity and profitability of the crop are achieved; but increasing fertilization dosages would decrease profitability.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Eucaliptos globulus]]></kwd>
<kwd lng="es"><![CDATA[Chile]]></kwd>
<kwd lng="es"><![CDATA[nutrición forestal]]></kwd>
<kwd lng="es"><![CDATA[rentabilidad de fertilización]]></kwd>
<kwd lng="en"><![CDATA[Eucalyptus globulus]]></kwd>
<kwd lng="en"><![CDATA[Chile]]></kwd>
<kwd lng="en"><![CDATA[forest nutrition]]></kwd>
<kwd lng="en"><![CDATA[fertilization profitability]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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