<?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>S0871-018X2022000300171</article-id>
<article-id pub-id-type="doi">10.19084/rca.28415</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cuantificación del sistema radicular de cultivos en sistema de riego por aspersión intensivo]]></article-title>
<article-title xml:lang="en"><![CDATA[Crop root cuantification in intensive sprinkler irrigation system]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Usón]]></surname>
<given-names><![CDATA[Asunción]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Daniel]]></surname>
<given-names><![CDATA[Isidoro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dechmi]]></surname>
<given-names><![CDATA[Farida]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Zaragoza Escuela Politécnica Superior ]]></institution>
<addr-line><![CDATA[Huesca ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigación y Tecnología Agroalimentaria de Aragón Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Zaragoza Instituto Agroalimentario de Aragón ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</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>171</fpage>
<lpage>180</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300171&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300171&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300171&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este trabajo pretende cuantificar la distribución en profundidad del sistema radicular de los principales cultivos en riego por aspersión en el Valle medio del Ebro (España), para poder utilizar esta información en modelos de simulación de cultivos e hidrologicos. Se han muestreado cilindros de suelos en antesis de los cuatro cultivos principales de la zona: cebada, maíz, alfalfa y guisante, de los que se han extraído las raíces por lavado. En ningún cultivo se observaron raíces por debajo de 40cm y hasta esa profundidad la densidad del sistema radicular disminuye en profundidad claramente para maíz y alfalfa. Casi el 80% de las raíces se encuentran en los primeros 20cm del suelo, aunque la cebada ha mostrado una distribución más homogénea en profundidad. Para todo el perfil del suelo, se han encontrado más raíces en este trabajo que en estudios previos, sobre todo para cebada y maíz debido a la intensificación del cultivo en regadío. Sin embargo, los cultivos de leguminosas en suelos de textura fina han mostrado menor cantidad de raíces. Los resultados obtenidos ayudarán a mejorar la modelización hidrológica y de los flujos de nutrientes en sistemas de riego por aspesion intensivos a escala de parcela y de cuenca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The main goal of this work is to quantify the depth distribution of crop root system under sprinkler irrigation in the Ebro Valley (Spain), in order to use this information in hydrological and crop simulation models. Soil cylinders have been sampled in the anthesis phase of the four main crops: barley, corn, alfalfa and peas. Crop roots have been extracted by washing. No roots were observed below 40 cm for all considered crops. Up to that depth the density of the root system clearly decreases with depth for maize and alfalfa. Almost 80% of the roots are found in the first 20 cm of the soil, although barley has shown a more homogeneous distribution in depth. Considering all soil profile, more roots density have been found in this work than in previous studies, especially for barley and corn, which is justified by the intensification of irrigated cultivation. However, legume crops on fine-textured soils have shown less roots density. The results obtained will help to improve the hydrological and nutrient load modeling in sprinkler intensive irrigation systems at both field and watershed scales.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sistema radicular]]></kwd>
<kwd lng="es"><![CDATA[modelización de cultivos]]></kwd>
<kwd lng="es"><![CDATA[regadío]]></kwd>
<kwd lng="es"><![CDATA[aspersión]]></kwd>
<kwd lng="en"><![CDATA[crop root]]></kwd>
<kwd lng="en"><![CDATA[crop modelization]]></kwd>
<kwd lng="en"><![CDATA[irrigation]]></kwd>
<kwd lng="en"><![CDATA[sprinkler]]></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[Barros]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Isidoro]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Aragüés]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Irrigation management, nitrogen fertilization and nitrogen losses in the return flows of La Violada irrigation district (Spain)]]></article-title>
<source><![CDATA[Agriculture, Ecosystems &amp; Environment]]></source>
<year>2012</year>
<volume>155</volume>
<page-range>161-71</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chilundo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Joel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wesström]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Messin]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Response of maize root growth to irrigation and nitrogen management strategies in semi-arid loamy sandy soil]]></article-title>
<source><![CDATA[Field Crops Research]]></source>
<year>2017</year>
<volume>200</volume>
<page-range>143-62</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chirinda]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Olesen]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Porter]]></surname>
<given-names><![CDATA[J.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root carbon input in organic and inorganic fertilizer-based systems]]></article-title>
<source><![CDATA[Plant and Soil]]></source>
<year>2012</year>
<volume>359</volume>
<page-range>321-33</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Sørensena]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Wahlströma]]></surname>
<given-names><![CDATA[E.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Chirinda]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Sharifa]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Lia]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Olesena]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root biomass in cereals, catch crops and weeds can be reliably estimated without considering aboveground biomas]]></article-title>
<source><![CDATA[Agriculture, Ecosystems and Environment]]></source>
<year>2018</year>
<volume>251</volume>
<page-range>141-8</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez-Aguirre]]></surname>
<given-names><![CDATA[MT.]]></given-names>
</name>
<name>
<surname><![CDATA[Isidoro]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydrosaline Balance and Nitrogen Loads from an irrigation district before and after modernization]]></article-title>
<source><![CDATA[Agricultural Water Management]]></source>
<year>2018</year>
<volume>208</volume>
<page-range>163-75</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez-Aguirre]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Isidoro]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Usón]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil variability in La Violada Irrigation District (Spain): II Characterizing hydrologic and salinity features]]></article-title>
<source><![CDATA[Geoderma]]></source>
<year>2018</year>
<month>a</month>
<volume>311</volume>
<page-range>67-77</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez-Aguirre]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Isidoro]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Usón,A]]></surname>
<given-names><![CDATA[.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil variability in La Violada Irrigation District (Spain): I Delineating soil units for irrigation]]></article-title>
<source><![CDATA[Geoderma]]></source>
<year>2018</year>
<month>b</month>
<volume>311</volume>
<page-range>78-90</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez-Aguirre]]></surname>
<given-names><![CDATA[MT.]]></given-names>
</name>
<name>
<surname><![CDATA[Dechmi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Coupled DSSAT-SWAT models to reduce off-site N pollution in Mediterranean irrigated watershed]]></article-title>
<source><![CDATA[Science of The Total Environment]]></source>
<year>2020</year>
<volume>745</volume>
<page-range>141000</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Otto]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ocheuze-Trivelin]]></surname>
<given-names><![CDATA[P.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Junqueira-Franco]]></surname>
<given-names><![CDATA[H.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Faroni]]></surname>
<given-names><![CDATA[C.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Vitti]]></surname>
<given-names><![CDATA[A.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root system distribution of sugar cane as related to nitrogen fertilization, evaluated by two methods: monolith and probes]]></article-title>
<source><![CDATA[Revista Brasileira de Ciência do Solo]]></source>
<year>2009</year>
<volume>33</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>601-11</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
