<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342020000400789</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v11i4.1787</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Potencial de secuestro de carbono orgánico en quinua simulado con el modelo RothC-26.3]]></article-title>
<article-title xml:lang="en"><![CDATA[Potential for organic carbon sequestration in quinoa simulated with the RothC-26.3 model]]></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[Espitia-Rangel]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pineda-Pineda]]></surname>
<given-names><![CDATA[Joel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñiz Reyes]]></surname>
<given-names><![CDATA[Erica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Irizar Garza]]></surname>
<given-names><![CDATA[Martha G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayala Garay]]></surname>
<given-names><![CDATA[Alma]]></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 Campo Experimental Valle de México ]]></institution>
<addr-line><![CDATA[Coatlinchán Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>4</numero>
<fpage>789</fpage>
<lpage>799</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342020000400789&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342020000400789&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342020000400789&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El presente estudio se realizó en el Campo Experimental Valle de México de INIFAP con el objetivo de estimar el potencial secuestro de carbono orgánico del suelo (COS) en las variedades de quinua: Amarilla Maranganí y Blanca con el uso del modelo RothC-26.3. Las simulaciones de la dinámica del COS con el RothC incluyeron: tres periodos de tiempo: 20, 60 y 100 años, los sistemas anuales: monocultivo de quinua (MQ), monocultivo de maíz (MM) y rotación de quinua-maíz (RQM); y el uso de tres aportes de carbono (C) al suelo de los residuos vegetales de cosecha (RV): 60, 70 y 80% de la materia seca total (MST). Al considerar que cerca de 80% de la MST queda sobre el terreno de cultivo después de la cosecha de quinua, la acumulación de carbono (C) se evaluó por estructura vegetal en tres en tratamientos de fertilización. La fertilización no tuvo efecto significativo en la producción de la MST, atribuido al nivel favorable de fertilidad del suelo del sitio de estudio y a la rusticidad del cultivo. La MST de Amarilla Maranganí fue mayor a la de Blanca. En ambas quinuas, los tallos y las inflorescencias y las hojas y el grano, representaron del 76 a 84% y del 11 a 23% de la MST, respectivamente. Los cambios de COS simulados por el RothC en ambas variedades de quinua indicaron potencial de secuestro de COS (Mg C ha-1 año-1) en un periodo de tiempo mayor a 20 años, sólo en el sistema MQ con RV= 80% MST.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The present study was carried out in the INIFAP Experimental Field of Mexico Valley with the objective of estimating the potential sequestration of organic carbon from the soil (COS) in the quinoa varieties: Amarilla Maranganí and Blanca with the use of the RothC-26.3 model. The simulations of COS dynamics with the RothC included: three time periods: 20, 60 and 100 years, the annual systems: monoculture of quinoa (MQ), monoculture of corn (MM) and rotation of quinoa-corn (RQM); and the use of three contributions of carbon (C) to the soil from crop residues (RV): 60, 70 and 80% of total dry matter (MST). Considering that about 80% of the MST remains on the cultivation land after the quinoa harvest, the carbon accumulation (C) was evaluated by plant structure in three fertilization treatments. Fertilization had no significant effect on MST production, attributed to the favorable level of soil fertility at the study site and the hardiness of the crop. The MST Amarilla Maranganí was higher than Blanca. In both quinoas, the stems and inflorescences and the leaves and grain represented 76 to 84% and 11 to 23% of the MST, respectively. The changes in COS simulated by the RothC in both quinoa varieties indicated COS sequestration potential (Mg C ha-1 year-1) in a period of time greater than 20 years, only in the MQ system with RV= 80% MST.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[carbono edáfico]]></kwd>
<kwd lng="es"><![CDATA[residuos de vegetales]]></kwd>
<kwd lng="es"><![CDATA[sistemas de cultivo, tasa de cambio]]></kwd>
<kwd lng="en"><![CDATA[edaphic carbon]]></kwd>
<kwd lng="en"><![CDATA[exchange rate]]></kwd>
<kwd lng="en"><![CDATA[farming systems]]></kwd>
<kwd lng="en"><![CDATA[vegetable waste]]></kwd>
</kwd-group>
</article-meta>
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