<?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>0187-7380</journal-id>
<journal-title><![CDATA[Revista fitotecnia mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. fitotec. mex]]></abbrev-journal-title>
<issn>0187-7380</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitogenética A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-73802022000300313</article-id>
<article-id pub-id-type="doi">10.35196/rfm.2022.3.313</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Extracción nutrimental del amaranto (Amaranthus hypochondriacus L.) Variedad Nutrisol]]></article-title>
<article-title xml:lang="en"><![CDATA[Nutrient extraction by amaranth (Amaranthus hypochondriacus L.) Nutrisol variety]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Molina]]></surname>
<given-names><![CDATA[Lucila]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno-Pérez]]></surname>
<given-names><![CDATA[Esaú del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espitia-Rangel]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayala-Garay]]></surname>
<given-names><![CDATA[Alma V.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Fitotecnia ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>45</volume>
<numero>3</numero>
<fpage>313</fpage>
<lpage>322</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-73802022000300313&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-73802022000300313&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-73802022000300313&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El amaranto (Amaranthus hypochondriacus L.) es un cultivo de importancia agronómica y nutracéutica; sin embargo, la información acerca de las necesidades de fertilidad del suelo y de la demanda y extracción de nutrimentos a lo largo del ciclo de cultivo es escasa, por lo que se llevó a cabo el presente estudio con el objetivo de obtener la curva de extracción nutrimental de amaranto variedad Nutrisol. El estudio se realizó en el Campo Experimental Valle de México del INIFAP, ubicado en Coatlinchán, Estado de México. En ocho muestreos se determinó la concentración de N, P, K, Ca y Mg en tallo, hoja, inflorescencia y grano. A partir de la concentración de los nutrimentos y el peso seco de las estructuras de la planta se calculó la extracción por hectárea, al considerar una densidad de población en campo de 135,000 plantas ha-1 y un rendimiento de 4.6 Mg ha-1. En madurez fisiológica, el elemento extraído en mayor cantidad (kg ha-1) fue K (896), seguido de N (395), Ca (270), Mg (231) y P (79), y las cantidades de nutrimento necesarias para producir una tonelada de grano (kg ha-1) fueron K (195), N (86), Ca (59), Mg (50) y P (17). La mayor demanda de todos los elementos fue entre los 82 y 123 días después de la siembra, periodo que coincidió con las etapas fenológicas de máximo crecimiento vegetativo, floración y llenado de grano. Al final del ciclo de producción, del total de nutrimentos extraídos por la planta, 30 % del N se acumuló en la inflorescencia y 20 % en grano; 31 % del P se acumuló en la inflorescencia y 32 % en grano; 57 % del K en tallo; 55 % de Ca y 49 % de Mg se almacenaron en las hojas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary Amaranth (Amaranthus hypochondriacus L.) is a crop with agronomic and nutraceutical importance; however, information is scarce on its needs for soil fertility, nutrient demand and nutrient extraction throughout the crop cycle. This study generated the nutrient extraction curve of the amaranth Nutrisol variety. The Valley of Mexico Experiment Station of INIFAP, located in Coatlinchán, State of Mexico, housed the study. The concentration of N, P, K, Ca and Mg was determined in eight samplings in stem, leaf, inflorescence and grain. Considering a field population density of 135,000 plants ha-1 and a yield of 4.6 Mg ha-1, and from the nutrient concentration and the plant structures dry weight, extraction per hectare was calculated. At physiological maturity, element extraction was determined in the following order (highest to lowest, kg ha-1): K (896), N (395), Ca (270), Mg (231) and P (79). The amount of nutrients needed to produce a ton of grain (kg ha-1) was K (195), N (86), Ca (59), Mg (50) and P (17). The period of most significant demand for all the elements was 82 to 123 days after sowing, coinciding with the phenological stages of maximum vegetative growth, flowering and grain filling. At the end of the production cycle, 30 % of N accumulated in the inflorescence and 20 % in the grain. Likewise, 31% of the P accumulated in the inflorescence and 32% in the grain. Of the remaining elements, 57 % of K accumulated in the stem, while 55% of Ca and 49 % of Mg remained in leaves.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Amaranthus hypochondriacus]]></kwd>
<kwd lng="es"><![CDATA[extracción nutrimental]]></kwd>
<kwd lng="es"><![CDATA[macronutrimentos]]></kwd>
<kwd lng="es"><![CDATA[materia seca]]></kwd>
<kwd lng="es"><![CDATA[rendimiento]]></kwd>
<kwd lng="es"><![CDATA[tejido vegetal]]></kwd>
<kwd lng="en"><![CDATA[Amaranthus hypochondriacus]]></kwd>
<kwd lng="en"><![CDATA[dry matter]]></kwd>
<kwd lng="en"><![CDATA[macronutrients]]></kwd>
<kwd lng="en"><![CDATA[nutrient extraction]]></kwd>
<kwd lng="en"><![CDATA[plant tissue]]></kwd>
<kwd lng="en"><![CDATA[yield]]></kwd>
</kwd-group>
</article-meta>
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