<?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>S0871-018X2022000300191</article-id>
<article-id pub-id-type="doi">10.19084/rca.28418</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Aplicação de composto e rega por aspersão diminuem o risco de acumulação de As e Cd em arroz]]></article-title>
<article-title xml:lang="en"><![CDATA[Compost application and sprinkler irrigation lowers the risk of As and Cd accumulation in rice grain]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarenga]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández-Rodríguez]]></surname>
<given-names><![CDATA[Damián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Abades]]></surname>
<given-names><![CDATA[David Peña]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Albarrán]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rato-Nunes]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Piñeiro]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade de Lisboa Instituto Superior de Agronomia Linking Landscape, Environment, Agriculture and Food Research Center]]></institution>
<addr-line><![CDATA[Lisboa ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Extremadura Escuela de Ingenierías Agrarias ]]></institution>
<addr-line><![CDATA[Badajoz ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Extremadura Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[Badajoz ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Politécnico de Portalegre Escola Superior Agrária de Elvas ]]></institution>
<addr-line><![CDATA[Elvas ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>45</volume>
<numero>4</numero>
<fpage>191</fpage>
<lpage>200</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300191&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300191&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300191&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Foi instalado um ensaio de campo junto ao rio Gévora (&#8220;Las Vegas Bajas de Guadiana&#8221;, Extremadura, Espanha), durante 3 anos, para avaliar a influência da aplicação de composto de resíduos da produção de azeite (bagaço de azeitona ou 'Alperujo'), e de diferentes sistemas de rega, na acumulação de As e Cd no arroz. A rega deficitária (aspersão) levou a uma diminuição na acumulação de As no grão, quando comparada com a rega por inundação, atingindo concentrações de As no grão nos tratamentos aeróbios mais de 5 vezes inferior à atingida nas condições de rega por inundação. A concentração de As no grão, nos tratamentos aeróbios, atingiu valores inferiores ao limite estabelecido pela Comissão Europeia (0.20 mg kg-1 no grão de arroz, peso fresco), e mesmo inferiores ao limite estabelecido para arroz branco polido para utilização em alimentos para bebés (0.10 mg kg-1). Porém, um efeito contrário foi observado na acumulação de Cd no grão, que aumentou nos tratamentos aeróbios. A aplicação de composto (80 t ha-1 no primeiro ano), foi capaz de contrabalançar esse efeito negativo, levando a uma diminuição na acumulação de Cd no grão, em comparação com a produção obtida sem aplicação de composto (e.g., uma diminuição de 0,080 para &lt;0,010 mg Cd kg-1 no grão, em sementeira direta com rega por aspersão), sem aumentar a concentração de As no grão. Por isso, foi possível concluir que, o cultivo aeróbio de arroz, com a aplicação simultânea de um corretivo orgânico maturado e estável, constitui uma boa solução para, simultaneamente, diminuir o risco de acumulação de As e Cd nos grãos de arroz.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A field experiment was set-up near the Gévora River (&#8220;Las Vegas Bajas de Guadiana&#8221;, Extremadura, Spain), for 3 years, to evaluate how the application of compost from olive mill waste, influences the accumulation of As and Cd in rice grain under different irrigation systems. The deficit irrigation (sprinkler irrigation) was able to lower the accumulation of As in the grain, when compared to the flooding irrigation systems, achieving As concentrations in the grain more than 5-times lower in the aerobic treatments than in the flooding irrigation conditions. The As concentrations in the aerobic treatments achieved values below the regulated limits established by the European Commision (0.20 mg kg-1 in the rice grain, fresh material), and even below the limit set for white polished rice intended to produce food for infants (0.10 mg kg-1). However, a contrary effect was observed on Cd accumulation in the grain, which increased in the aerobic treataments. Compost application (80 t ha-1 in the first year), was able to counterbalance that negative effect, lowering Cd accumulation in the rice grain, relatively to the non-treated counterparts (e.g., a reduction from 0.080 to &lt;0.010 mg Cd kg-1 in the grain, in direct seeding with sprinkler irrigation), without increasing grain As concentrations. It was possible to conclude that, the aerobic cultivation of rice, with the simultaneous application of a mature and stable organic amendment, can be considered a good solution to, simultaneously, lower the risk of accumulation of As and Cd in the rice grain.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[produção de arroz]]></kwd>
<kwd lng="pt"><![CDATA[acumulação de elementos potencialmente tóxicos]]></kwd>
<kwd lng="pt"><![CDATA[rega por inundação]]></kwd>
<kwd lng="pt"><![CDATA[rega deficitária]]></kwd>
<kwd lng="pt"><![CDATA[correção orgânica dos solos]]></kwd>
<kwd lng="en"><![CDATA[rice production]]></kwd>
<kwd lng="en"><![CDATA[potentially toxic elements accumulation]]></kwd>
<kwd lng="en"><![CDATA[flooding irrigation]]></kwd>
<kwd lng="en"><![CDATA[deficit irrigation]]></kwd>
<kwd lng="en"><![CDATA[soil organic amendment]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarenga]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Rodríguez]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Abades]]></surname>
<given-names><![CDATA[D.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Rato-Nunes]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarrán]]></surname>
<given-names><![CDATA[Á.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Piñeiro]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combined use of olive mill waste compost and sprinkler irrigation to decrease the risk of As and Cd accumulation in rice grain]]></article-title>
<source><![CDATA[Science of the Total Environment]]></source>
<year>2022</year>
<volume>835</volume>
<page-range>155488</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<collab>Comissão</collab>
<article-title xml:lang=""><![CDATA[Commission Regulation (EC) 1881/2006, of 19 December 2006, setting maximum levels for certain contaminants in foodstuffs]]></article-title>
<source><![CDATA[Official Journal of the European Union]]></source>
<year>2006</year>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<collab>Comissão Europeia</collab>
<article-title xml:lang=""><![CDATA[Amending Regulation (EC) 1881/2006, as regards maximum levels of inorganic arsenic in foodstuffs]]></article-title>
<source><![CDATA[Official Journal of the European Union]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fernández-Rodríguez]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sistemas Aeróbicos y Anaeróbicos del Cultivo del Arroz con Aplicación de Enmienda Orgánica: Comportamiento Agronómico y Flujo de Gases de Efecto Invernadero]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Badajoz ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Extremadura]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hossain]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mestrot]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Norton]]></surname>
<given-names><![CDATA[G.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Deacon]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Islam]]></surname>
<given-names><![CDATA[M.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Meharg]]></surname>
<given-names><![CDATA[A.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic dynamics in paddy soil under traditional manuring practices in Bangladesh]]></article-title>
<source><![CDATA[Environmental Pollution]]></source>
<year>2021</year>
<volume>268</volume>
<page-range>115821</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kabata-Pendias]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Trace Elements in Soils and in Plants]]></source>
<year>2011</year>
<edition>Fouth</edition>
<publisher-loc><![CDATA[Boca Raton (USA) ]]></publisher-loc>
<publisher-name><![CDATA[CRC Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno-Jiménez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Meharg]]></surname>
<given-names><![CDATA[A.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Smolders]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Manzano]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Becerra]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez-Llerena]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarrán]]></surname>
<given-names><![CDATA[Á.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Piñero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sprinkler irrigation of rice fields reduces grain arsenic but enhances cadmium]]></article-title>
<source><![CDATA[Science of the Total Environment]]></source>
<year>2014</year>
<volume>485-486</volume>
<page-range>468-73</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez-Llerena]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Piñeiro]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Albarrán]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Becerra]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Rato-Nunes]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Short and long-term effects of different irrigation and tillage systems on soil properties and rice productivity under Mediterranean conditions]]></article-title>
<source><![CDATA[European Journal of Agronomy]]></source>
<year>2016</year>
<volume>77</volume>
<page-range>101-10</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sengupta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhattacharyya]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Mandal]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhattacharya]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Halder]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Pari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Deficit irrigation and organic amendments can reduce dietary arsenic risk from rice: Introducing machine learning-based prediction models from field data]]></article-title>
<source><![CDATA[Agriculture, Ecosystems &amp; Environment]]></source>
<year>2021</year>
<volume>319</volume>
<page-range>107516</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
