<?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>0120-2812</journal-id>
<journal-title><![CDATA[Acta Agronómica]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Agron.]]></abbrev-journal-title>
<issn>0120-2812</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-28122017000300414</article-id>
<article-id pub-id-type="doi">10.15446/acag.v66n3.56379</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Physical attributes of Cambisol in apple ( Malus domestica Borkh. cv. Gala) orchard under different weed management systems in Urubici- Santa Catarina, Brazil]]></article-title>
<article-title xml:lang="es"><![CDATA[Atributos físicos de Cambissolo submetido a diferentes manejos de plantas espontâneas em pomar de macieira ( Malus domestica Borkh. cv. Gala) em Urubici- Santa Catarina, Brasil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Schmitz]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Loss]]></surname>
<given-names><![CDATA[Arcângelo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[Bruno Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lovato]]></surname>
<given-names><![CDATA[Paulo Emilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Veiga]]></surname>
<given-names><![CDATA[Milton da]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brunetto]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Curmi]]></surname>
<given-names><![CDATA[Pierre]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Comin]]></surname>
<given-names><![CDATA[Jucinei José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Federal de Santa Catarina (UFSC)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Oeste de Santa Catarina (UNOESC)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Agrosup Dijon  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>France</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<volume>66</volume>
<numero>3</numero>
<fpage>414</fpage>
<lpage>421</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-28122017000300414&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-28122017000300414&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-28122017000300414&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The aim of this research was to evaluate the physical attributes of Cambisol in apple (Malus domestica Borkh. cv. Gala) orchard under different weed management systems in the state of Santa Catarina (SC), Brazil. The treatments were as follows: control (no weed management), chemical desiccation and mowing. We took samples of undisturbed soil at depths of 0-5, 5-10, 10-15 and 15-20 cm. We evaluated hydraulic conductivity (HC); bulk density (BD); soil penetration resistance (Pr); total porosity (TP), macropores (MaP), micropores (MiP); soil aggregation indices such as arithmetic and geometric mean diameter of air-dried and water-stable aggregates (AMDad, AMDws, GMDad, GMDws, respectively); aggregate stability index (ASIAMD and ASIGMD) and volumetric water content (VWC). We also carried out principal component analysis (PCA) with the data. The mowing or desiccation treatments increased BD at the 15-20 cm depth compared to control. The mowing treatment had the highest ASIGMD while desiccation contributed to the lowest ASIGMD. The desiccation treatment decreased AMDws (0-10 cm), ASIAMD (0-5 cm) GMDws (5-10 cm) and reduced HC by 26% and 22%, respectively, compared to the mowing and control treatments. Through PCA we were able to separate the three treatments. The mowing treatment was correlated with HC, VWC at pressure of 600 kPa and ASIGMD; desiccation was correlated with BD and Pr; and control with ASIAMD, MaP and TP.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O objetivo do trabalho foi avaliar os atributos físicos de Cambissolo em pomar de macieira (Malus domestica Borkh. cv. Gala) em Santa Catarina, Brasil, submetido a diferentes manejos das plantas espontâneas. Os tratamentos avaliados foram: testemunha (sem manejo das espontâneas), dessecação química e roçada. Foram coletadas amostras indeformadas de solo nas profundidades de 0-5, 5-10, 10-15 e 15-20 cm, nas quais foram avaliadas a condutividade hidráulica (CH); densidade do solo (Ds); resistência do solo à penetração (Rp); porosidade total (PT), macroporos (MaP), microporos (MiP); índices de agregação do solo, sendo o diâmetro médio aritmético e geométrico dos agregados secos ao ar e estáveis em água (DMAsa, DMAea, DMGsa, DMGea, respectivamente); índice de estabilidade de agregados (IEADMA e IEADMG) e umidade volumétrica (UV). Também realizou-se uma análise de componentes principais (ACP) com os dados obtidos. O manejo com roçada ou dessecação aumentou a Ds (15-20 cm) quando comparado com a testemunha. O tratamento roçada foi responsável por apresentar o maior IEADMG, enquanto a dessecação contribui para o menor IEADMG. O manejo com a dessecação diminuiu o DMAea (0-10 cm), IEADMA (0-5 cm), DMGea (5-10 cm) e reduziu a CH em 26% e 22%, respectivamente, em relação à roçada e testemunha. Por meio da ACP foi possível separar os três tratamentos avaliados, sendo o manejo com a roçada correlacionado com a CH, UV na tensão de 600 kPa e IEADMG; a dessecagem correlacionado com DS e RP; e a testemunha correlacionada com IEADMA, MaP e PT.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Bulk density]]></kwd>
<kwd lng="en"><![CDATA[chemical desiccation and mowing of weeds]]></kwd>
<kwd lng="en"><![CDATA[aggregate indices]]></kwd>
<kwd lng="en"><![CDATA[penetration resistance]]></kwd>
<kwd lng="en"><![CDATA[principal component analysis]]></kwd>
<kwd lng="pt"><![CDATA[Densidade do solo]]></kwd>
<kwd lng="pt"><![CDATA[dessecação química e roçada das espontâneas]]></kwd>
<kwd lng="pt"><![CDATA[índices de agregação]]></kwd>
<kwd lng="pt"><![CDATA[resistência à penetração]]></kwd>
<kwd lng="pt"><![CDATA[análise de componentes principais]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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