<?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>0871-018X</journal-id>
<journal-title><![CDATA[Revista de Ciências Agrárias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. de Ciências Agrárias]]></abbrev-journal-title>
<issn>0871-018X</issn>
<publisher>
<publisher-name><![CDATA[Sociedade de Ciências Agrárias de Portugal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0871-018X2020000300228</article-id>
<article-id pub-id-type="doi">10.19084/rca.20853</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Modelos de agricultura sustentável: biodinâmica e sistema silvipastoril]]></article-title>
<article-title xml:lang="en"><![CDATA[Models of sustainable agriculture: biodynamic and silvopastoral system]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mascarenhas¹]]></surname>
<given-names><![CDATA[Nágela M. H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Furtado¹]]></surname>
<given-names><![CDATA[Dermeval A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cavalcante¹]]></surname>
<given-names><![CDATA[Cácio R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa²]]></surname>
<given-names><![CDATA[Antonio N. L. da]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souza²]]></surname>
<given-names><![CDATA[Maria A. de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonçalves¹]]></surname>
<given-names><![CDATA[Mailson G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira¹]]></surname>
<given-names><![CDATA[Airton G. de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brito¹]]></surname>
<given-names><![CDATA[Alicia N. dos S. L. de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva¹]]></surname>
<given-names><![CDATA[Luís P. F. R. da]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nogueira¹]]></surname>
<given-names><![CDATA[Lídia P. da S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dornelas¹]]></surname>
<given-names><![CDATA[Karoline C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodrigues¹]]></surname>
<given-names><![CDATA[Raimundo C. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Neto¹]]></surname>
<given-names><![CDATA[Moises S. de Medeiros]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paiva¹]]></surname>
<given-names><![CDATA[Francisco J. da S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva¹]]></surname>
<given-names><![CDATA[Semirames do N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal de Campina Grande Centro de Tecnologia e Recursos Naturais Departamento de Engenharia Agrícola]]></institution>
<addr-line><![CDATA[Campina Grande PB]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Federal do Cariri Centro de Ciências Agrárias e Biodiversidade ]]></institution>
<addr-line><![CDATA[Crato CE]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>43</volume>
<numero>3</numero>
<fpage>228</fpage>
<lpage>245</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2020000300228&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2020000300228&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2020000300228&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO O objetivo desta revisão foi comparar dois modelos de agricultura sustentáveis, demostrando as vantagens e desvantagens de ambos, correlacionando-os entre si. As diversas práticas agrícolas contemporâneas compreendem modelos alternativos de agricultura, como permacultura, agricultura biológica, orgânica, biodinâmica, que são consideradas sustentáveis, e modelos intensivos de produção, que apresentam vários pontos negativos, contrastando com os modelos alternativos. A busca por uma agricultura menos agressiva ao meio ambiente, que permaneça produtiva em longo prazo, tem sido uma preocupação constante de pesquisadores e produtores. Os modelos de agricultura assemelham-se entre si, o que os difere são apenas algumas práticas que não são permitidas em todos, e suas bases de fundamentação. Nesta revisão dois modelos foram mais abordados de forma simplificada, para a percepção dos seus conceitos e de suas bases fundamentais, mostrando o que os diferencia, e que mesmo assim os leva para um mesmo objetivo, criar um ecossistema independente de recursos externos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective of this review was to compare two models of sustainable agriculture, demonstrating their advantages and disadvantages and correlating them with each other. The diverse contemporary agricultural practices comprise from alternative models of agriculture, such as permaculture, organic farming, organic, biodynamic, that are considered sustainable, and intensive production models, that present several negative points, contrasting with alternative models. The search for a less aggressive agriculture to the environment, what stay productive in the long run, it has been a constant concern of researchers and producers. Agricultural models are similar to each other, what differs are some practices that do not are allowed in all, and its foundation bases. In this review, two models were more approached in a simplified way, to the perception of their concepts and fundamental bases, showing what differentiates them, and that still leads to the same goal, creating an ecosystem independent of external resources.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[lavoura-pecuária]]></kwd>
<kwd lng="pt"><![CDATA[manejo agroecológico]]></kwd>
<kwd lng="pt"><![CDATA[sustentabilidade]]></kwd>
<kwd lng="en"><![CDATA[mixed farming]]></kwd>
<kwd lng="en"><![CDATA[agroecological management]]></kwd>
<kwd lng="en"><![CDATA[sustainability]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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