<?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>0120-0135</journal-id>
<journal-title><![CDATA[Revista de Ciencias Agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Cienc. Agr.]]></abbrev-journal-title>
<issn>0120-0135</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Nariño]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-01352022000200198</article-id>
<article-id pub-id-type="doi">10.22267/rcia.223902.183</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Determinants of nitrogen use efficiency in coffee crops. A review]]></article-title>
<article-title xml:lang="es"><![CDATA[Determinantes de la eficiencia en el uso del nitrógeno en los cultivos de café. Una revisión]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sadeghian-Khalajabadi]]></surname>
<given-names><![CDATA[Siavosh]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acuña-Zornosa]]></surname>
<given-names><![CDATA[José-Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salazar-Gutiérrez]]></surname>
<given-names><![CDATA[Luis-Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rey-Sandoval]]></surname>
<given-names><![CDATA[Juan-Camilo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Nacional de Investigación del Café - Cenicafé  ]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Nacional de Investigación del Café - Cenicafé  ]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Nacional de Investigación del Café - Cenicafé  ]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Corporación Centro de Investigación en Palma de Aceite - Cenipalma  ]]></institution>
<addr-line><![CDATA[Paratebueno ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>39</volume>
<numero>2</numero>
<fpage>198</fpage>
<lpage>219</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-01352022000200198&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-01352022000200198&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-01352022000200198&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT World production of coffee (Coffea spp.) has increased in recent decades due to its growing demand. Nitrogen (N) is one of the most required nutrients by coffee crops and in many cases, the most yield-limiting; nevertheless, a high percentage of supplied N is lost, generating pollution, greenhouse gases, and economic losses. Given this scenario, it is a priority to adopt practices that increase nitrogen use efficiency NUE related to the capacity of plants to absorb and use N to produce biomass. This article provides context about NUE and determining factors in coffee: plant, soil, climate, and management. On the plant side, despite advances in genetics and the results of genotype evaluation, it may be a decade or more before improved coffee varieties with high NUE become available or used in world coffee farming. Both the physical, chemical, and biological properties of the soil and the elements of the climate, mainly temperature, precipitation, and solar radiation, have an influence on coffee growth and many of the processes that intervene in the N cycle and NUE; however, some components of these two factors are not fully controllable. Management of the factors that determine NUE should focus on reducing N losses in the system, increasing its uptake and utilization by plants, and maintaining or increasing productivity.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La producción mundial de café (Coffea spp.) ha aumentado en las últimas décadas, como consecuencia de su creciente demanda. El nitrógeno (N) es uno de los nutrientes más requeridos por el cultivo del café y en muchas ocasiones el más limitante de la producción; sin embargo, un alto porcentaje de la cantidad suministrada de N se pierde, generando contaminación ambiental, gases de efecto invernadero y pérdidas económicas. Ante este panorama, se hace prioritaria la adopción de prácticas para aumentar la eficiencia de uso del N (EUN), la cual se relaciona con la capacidad de las plantas para absorber y utilizar N con el propósito de producir biomasa. Este artículo provee contexto acerca de la EUN y los factores que la determinan en café: planta, suelo, clima y manejo. En cuanto a la planta, a pesar de los avances en genética y los resultados de la evaluación de genotipos, es posible que se pase una década o más, antes que las variedades mejoradas de café con alta EUN estén disponibles o se utilicen en la caficultura mundial. Tanto las propiedades físicas, químicas y biológicas del suelo como los elementos del clima, principalmente temperatura, precipitación y radiación solar, afectan el crecimiento de café y muchos de los procesos que intervienen en el ciclo del N y afectan la EUN; sin embargo, algunos componentes de estos dos factores no son totalmente controlables. El manejo de los factores que determinan la EUN debe enfocarse en reducir las pérdidas de N en el sistema, aumentar su absorción y utilización por las plantas y mantener o aumentar la productividad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Coffea spp.]]></kwd>
<kwd lng="en"><![CDATA[climate]]></kwd>
<kwd lng="en"><![CDATA[crop management]]></kwd>
<kwd lng="en"><![CDATA[crop production]]></kwd>
<kwd lng="en"><![CDATA[environment]]></kwd>
<kwd lng="en"><![CDATA[plant nutrition]]></kwd>
<kwd lng="en"><![CDATA[soil]]></kwd>
<kwd lng="es"><![CDATA[Coffea spp.]]></kwd>
<kwd lng="es"><![CDATA[clima]]></kwd>
<kwd lng="es"><![CDATA[manejo del cultivo]]></kwd>
<kwd lng="es"><![CDATA[producción de cultivos]]></kwd>
<kwd lng="es"><![CDATA[medio ambiente]]></kwd>
<kwd lng="es"><![CDATA[nutrición de las plantas]]></kwd>
<kwd lng="es"><![CDATA[suelo]]></kwd>
</kwd-group>
</article-meta>
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