<?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>S0120-28122018000200303</article-id>
<article-id pub-id-type="doi">10.15446/acag.v67n2.65684</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Crop productivity and soil quality after fertilization with liquid swine manure]]></article-title>
<article-title xml:lang="pt"><![CDATA[Productividade das culturas e qualidade do solo após adubação com dejetos líquidos de suínos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rimoldi Tavanti]]></surname>
<given-names><![CDATA[Renan Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Freddi]]></surname>
<given-names><![CDATA[Onã da Silva]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tavanti]]></surname>
<given-names><![CDATA[Tauan Rimoldi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lorenzon]]></surname>
<given-names><![CDATA[Kayane]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[dos Santos]]></surname>
<given-names><![CDATA[Igor de Morais]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Demicheli]]></surname>
<given-names><![CDATA[Matheus]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[Letícia Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montanari]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Breda]]></surname>
<given-names><![CDATA[Carlos Cesar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Estadual Paulista Rural Engineering and Soil Department of Plant Protection]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Federal University of Mato Grosso Institute of Agricultural and Environmental Sciences ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>67</volume>
<numero>2</numero>
<fpage>303</fpage>
<lpage>310</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-28122018000200303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-28122018000200303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-28122018000200303&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract An unresolved question about the use of animal waste in agriculture is its effect on the physical and chemical attributes of soil, especially in commercial grain producing areas that have adopted direct seeding system (DSS). Aiming at contributing to the clarification of this question, we conducted a study in the mid-north region of the Mato Grosso state, Brazil, in a soybean and maize commercial area consolidated in DSS. Different doses of liquid swine manure (LSM) were applied and compared with NPK mineral fertilization. The aim of this study was to evaluate the physical and chemical quality of the soil and the productive potential of the soybean and maize crops under LSM doses and NPK fertilizer. Results indicated an increase in levels of K, P, Zn and Cu exchangeable with LSM fertilization of 80 m3.ha-1. Fertilizers with mineral NPK and LSM at 80 and 60 m3.ha-1, respectively, show soil porosity improvements and decreased soil penetration resistance. Moreover, the use of LSM also provided the highest increases in soybean and maize grain yield.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Uma das questões pouco esclarecidas sobre o uso de resíduos animais na agricultura, é seu efeito sobre os atributos físicos e químicos do solo, principalmente em áreas comerciais produtoras de grãos que adotam o sistema de semeadura direta (DSS). Visando contribuir com o esclarecimento desta questão, realizamos um estudo na região médio-norte do estado de Mato Grosso, Brasil, em uma área comercial de soja e milho consolidada em DSS. Aplicou-se diferentes doses de dejetos líquidos de suínos (LSM) e as comparou com adubação mineral NPK. O objetivo foi avaliar a qualidade física e química do solo e o potencial produtivo das culturas soja e milho sob as doses de LSM e NPK como fertilizantes. Os resultados indicaram aumento nos teores de K, P, Zn e Cu trocáveis com adubação de 80 m3 ha-1 de LSM. As adubações com fertilizante mineral NPK e LSM nas doses de 80 e 60 m3 ha-1 proporcionam melhorias na porosidade do solo e diminuíram a resistência do solo à penetração. O uso de LSM também proporcionou os maiores incrementos na produtividade de grãos de soja e de milho.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Glycine max L.]]></kwd>
<kwd lng="en"><![CDATA[Zea mays L.]]></kwd>
<kwd lng="en"><![CDATA[fertilizers]]></kwd>
<kwd lng="en"><![CDATA[soil physics]]></kwd>
<kwd lng="en"><![CDATA[soil fertility]]></kwd>
<kwd lng="en"><![CDATA[direct sowing system]]></kwd>
<kwd lng="pt"><![CDATA[Glycine max L.]]></kwd>
<kwd lng="pt"><![CDATA[Zea mays L.]]></kwd>
<kwd lng="pt"><![CDATA[fertilizantes]]></kwd>
<kwd lng="pt"><![CDATA[física do solo]]></kwd>
<kwd lng="pt"><![CDATA[fertilidade do solo]]></kwd>
<kwd lng="pt"><![CDATA[sistema de semeadura direta]]></kwd>
</kwd-group>
</article-meta>
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