<?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>S0871-018X2022000300371</article-id>
<article-id pub-id-type="doi">10.19084/rca.28477</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Fertilidade do solo e nutrição mineral da &#8220;Batata-doce de Aljezur&#8221;]]></article-title>
<article-title xml:lang="en"><![CDATA[Soil fertility and mineral nutrition of &#8220;Aljezur Sweetpotato&#8221;]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Veloso*]]></surname>
<given-names><![CDATA[Anabela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mano]]></surname>
<given-names><![CDATA[Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Maria Elvira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,INIAV I.P. UEIS-SAFSV]]></institution>
<addr-line><![CDATA[Oeiras ]]></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>371</fpage>
<lpage>380</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300371&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300371&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300371&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Para avaliar a fertilidade do solo, o estado nutricional das plantas e determinar a composição mineral das raízes de reserva, selecionaram-se 29 parcelas de &#8220;Batata-doce de Aljezur&#8221;, tendo-se procedido à colheita e análise de amostras de solo, folhas e raízes de reserva. Os resultados revelaram que os solos são de textura arenosa, com teores baixos de matéria orgânica, pouco ácidos, teores altos de fósforo extraível e teores muito baixos de boro extraível e de Ca++; Mg++ e K+ de troca. As médias dos teores foliares de nutrientes na matéria seca foram as seguintes: 37,8 g kg-1 de N, 2,6 g kg-1 de P, 24,1 g kg-1 de K, 9,4 g kg-1 de Ca, 6,4 g kg-1 de Mg, 125 mg kg-1 de Fe, 255 mg kg-1 de Mn, 21 mg kg-1 de Zn, 11 mg kg-1 de Cu e 47 mg kg-1 de B. Nas raízes de reserva (&gt;50 g), os teores médios de K (3,65 g kg-1) e de Mn (4,49 mg kg-1), expressos em peso fresco, foram o macro e o micronutriente mais exportados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract To assess soil fertility, plant nutritional status and to determine the mineral composition of storage roots, 29 plots of "Batata-doce de Aljezur" were selected and soil, leaf and storage root samples were taken and analysed. The results showed that the soils are sandy, with low levels of organic matter, moderately acidic, with high levels of extractable phosphorus and very low levels of extractable boron and exchange Ca++; Mg++ and K+. The mean leaf nutrient contents in the dry matter were as follows: 37.8 g kg-1 N, 2.6 g kg-1 P, 24.1 g kg-1 K, 9.4 g kg-1 Ca, 6.4 g kg-1 Mg, 125 mg kg-1 Fe, 255 mg kg-1 Mn, 21 mg kg-1 Zn, 11 mg kg-1 Cu and 47 mg kg-1 B. In the storage roots (&gt;50 g), K and Mg were the most exported macro and micronutrient, with average contents of 3.65 g kg-1 K and 4.49 mg kg-1 Mg (wet weight).]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Ipomoea batatas (L.) Lam.]]></kwd>
<kwd lng="pt"><![CDATA[análise de solo]]></kwd>
<kwd lng="pt"><![CDATA[análise de folhas]]></kwd>
<kwd lng="pt"><![CDATA[composição mineral]]></kwd>
<kwd lng="en"><![CDATA[Ipomoea batatas (L.) Lam.]]></kwd>
<kwd lng="en"><![CDATA[soil test]]></kwd>
<kwd lng="en"><![CDATA[leaf analysis]]></kwd>
<kwd lng="en"><![CDATA[mineral composition]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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