<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662019000100119</article-id>
<article-id pub-id-type="doi">10.15174/au.2019.1864</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prácticas agroecológicas y su influencia en la fertilidad del suelo en la región cafetalera de Xolotla, Puebla]]></article-title>
<article-title xml:lang="en"><![CDATA[Agroecological practices and their influence on soil fertility in the coffee region of Xolotla, Puebla]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras Cruz]]></surname>
<given-names><![CDATA[Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Morales]]></surname>
<given-names><![CDATA[Primo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero Arenas]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera Tapia]]></surname>
<given-names><![CDATA[José Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocampo Fletes]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Parraguirre Lezama]]></surname>
<given-names><![CDATA[José Filomeno Conrado]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Instituto de Ciencias Centro de Agroecología]]></institution>
<addr-line><![CDATA[ Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Instituto de Ciencias Centro de Investigaciones en Ciencias Microbiológicas]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>29</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662019000100119&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662019000100119&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662019000100119&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El café (Coffea arabica L.) es un cultivo muy importante para el desarrollo del centro y sur de México: 70% del área cultivada se encuentra bajo manejo tradicional. Por la relevancia de estos agroecosistemas el objetivo fue identificar prácticas agroecológicas (PA) y su influencia en la fertilidad del suelo en sistemas de café de Xolotla, Puebla. Para identificar PA se aplicó una encuesta a 79 productores; para determinar la fertilidad del suelo se realizaron análisis fisicoquímicos con base en la NOM-021-SEMARNAT; además, se analizó la concentración bacteriana total. Se encontró que 71% de las prácticas que se usan en el manejo del cafetal son agroecológicas, tienen relación positiva con el rendimiento y con los contenidos de nitrógeno, potasio y calcio del suelo, así como con la concentración bacteriana del suelo. Se concluye que las PA favorecen el rendimiento y la fertilidad del suelo en el sistema agroforestal café.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Coffee (Coffea arabica L.) is a very important crop for the development of central and southern Mexico: 70% of the cultivated area is under traditional management. Due to the relevance of these agroecosystems, the objective was to identify agroecological practices (PA) and their influence on soil fertility in coffee systems in Xolotla, Puebla. To identify PA, a survey was applied to 79 producers. To determine the fertility of the soil, physicochemical analyzes were carried out based on the NOM-021-SEMARNAT; in addition, the total bacterial concentration was analyzed. It was found that 71% of the practices used in the management of coffee plantations are agro-ecological, and they have a positive relationship with the yield and nitrogen, potassium and calcium contents of the soil, as well as with the bacterial concentration of the soil. It is concluded that PA favor soil yield and fertility in the coffee agroforestry system.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Agroecosistema café]]></kwd>
<kwd lng="es"><![CDATA[prácticas agroecológicas]]></kwd>
<kwd lng="es"><![CDATA[fertilidad del suelo]]></kwd>
<kwd lng="es"><![CDATA[conservación]]></kwd>
<kwd lng="es"><![CDATA[café]]></kwd>
<kwd lng="en"><![CDATA[Coffee Agroecosystem]]></kwd>
<kwd lng="en"><![CDATA[agroecological practices]]></kwd>
<kwd lng="en"><![CDATA[soil fertility]]></kwd>
<kwd lng="en"><![CDATA[conservation]]></kwd>
<kwd lng="en"><![CDATA[coffee]]></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[Acosta Márquez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cuando el maíz es Itekontlakuali: el "dueño de la comida". Un acercamiento a la economía ritual de los nahuas de Pahuatlán, Puebla]]></article-title>
<source><![CDATA[Cuicuilco]]></source>
<year>2014</year>
<volume>21</volume>
<numero>60</numero>
<issue>60</issue>
<page-range>223-38</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Altieri]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agroecología, Bases Científicas para una Agricultura Sustentable]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Montevideo. Uruguay ]]></publisher-loc>
<publisher-name><![CDATA[Nordan-Comunidad]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Altieri]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Construyendo resiliencia socio-ecológica en agroecosistemas: algunas consideraciones conceptuales y metodológicas]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Nicholls]]></surname>
<given-names><![CDATA[C. I]]></given-names>
</name>
<name>
<surname><![CDATA[Ríos]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Altieri]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agroecología y resiliencia socioecológica: adaptándose al cambio climático]]></source>
<year>2013</year>
<page-range>94-104</page-range><publisher-loc><![CDATA[Medellín, Colombia ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Altieri]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nicholls]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agroecología: Teoría y Práctica para una Agricultura Sustentable]]></source>
<year>2000</year>
<publisher-loc><![CDATA[México, D.F ]]></publisher-loc>
<publisher-name><![CDATA[Programa de las Naciones Unidas para el Medio Ambiente]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarado Méndez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Juárez Tlamani]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez Valverde]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La comercialización de café en una comunidad indígena: estudio en Huehuetla, Puebla]]></article-title>
<source><![CDATA[Ra Ximhai]]></source>
<year>2006</year>
<volume>2</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>293-318</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Amberger]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil fertility and plant nutrition in the tropics and subtropics]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Paris, France ]]></publisher-loc>
<publisher-name><![CDATA[International Fertilizer Industry Association, International Potash Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aragón]]></surname>
<given-names><![CDATA[G. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cafeticultura, inequidad y pobreza]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[V. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Juárez]]></surname>
<given-names><![CDATA[S. J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Cesín]]></surname>
<given-names><![CDATA[V. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Productores Indígenas de Café de la Sierra Nororiente de Puebla. Problemas y Alternativas]]></source>
<year>2006</year>
<page-range>13-32</page-range><publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Consejo Nacional de Ciencia y Tecnología]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Astier-Calderón]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Maass-Moreno]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Etchevers-Barra]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Derivación de calidad de suelos en el contexto de la agricultura sustentable]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2002</year>
<volume>36</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>605-20</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Avelino]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cabut]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Barboza]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Barquero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Alfaro]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Esquivel]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Durand]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Cilas]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Topography and crop management are key factors for the development of American leaf spot epidemics on coffee in Costa Rica]]></article-title>
<source><![CDATA[Phytopathology]]></source>
<year>2007</year>
<volume>97</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>532-154</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Basurto]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Huertos familiares en dos comunidades nahuas de la Sierra Norte de Puebla: Yancuictlalpan y Cuauhtapanaloyan]]></source>
<year>1982</year>
<publisher-loc><![CDATA[D. F, México ]]></publisher-loc>
<publisher-name><![CDATA[Facultad de Ciencias, Universidad Nacional Autónoma de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Benítez-García]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaramillo-Villanueva]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Escobedo-Garrido]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Mora-Flores]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización de la producción y del comercio de café en el municipio de Cuetzalan, Puebla]]></article-title>
<source><![CDATA[Agricultura, sociedad y desarrollo]]></source>
<year>2015</year>
<volume>12</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>181-98</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhardwaj]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Jasrotia]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamilton]]></surname>
<given-names><![CDATA[S. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Robertson]]></surname>
<given-names><![CDATA[G. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ecological management of intensively cropped agro-ecosystems improves soil quality with sustained productivity]]></article-title>
<source><![CDATA[Agriculture, Ecosystems y Environment]]></source>
<year>2011</year>
<volume>140</volume>
<numero>3-4</numero>
<issue>3-4</issue>
<page-range>419-29</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Capa Mora]]></surname>
<given-names><![CDATA[E. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Efecto de la fertilización orgánica y mineral en las propiedades del suelo, la emisión de los principales gases de efecto invernadero y en las diferentes fases fenológicas del cultivo de café (coffea arabica L.)]]></source>
<year>2015</year>
<publisher-loc><![CDATA[Madrid, España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Politécnica de Madrid, Escuela Técnica Superior de Ingenieros Agrónomos]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castellanos]]></surname>
<given-names><![CDATA[J. Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Uvalle-Bueno]]></surname>
<given-names><![CDATA[J. X.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilar-Santelises]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de interpretación de análisis de suelos y aguas]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Celaya, Guanajuato, México ]]></publisher-loc>
<publisher-name><![CDATA[Instituto de Capacitación para la Productividad Agrícola]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Comese]]></surname>
<given-names><![CDATA[R. V.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[M. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Conti]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cambios en las propiedades de suelo de huerta y rendimiento de Beta vulgaris var. Cicla (l) por el uso de enmiendas orgánicas]]></article-title>
<source><![CDATA[Ciencia del suelo]]></source>
<year>2009</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>271-5</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<collab>Comisión nacional para el conocimiento y uso de la biodiversidad (Conabio)</collab>
<source><![CDATA[El Bosque Mesófilo de Montaña en México: Amenazas y Oportunidades para su Conservación y Manejo Sostenible]]></source>
<year>2010</year>
<publisher-loc><![CDATA[México D.F ]]></publisher-loc>
<publisher-name><![CDATA[Comisión Nacional para el Conocimiento y Uso de la Biodiversidad]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cupull Santana]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado Pérez]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Cupull Santana]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Andréu Rodríguez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de dos biopreparados y micorriza en la estimulación de la germinación, el control de Rhizoctonia solani y el desarrollo de posturas de Coffea arabica L.]]></article-title>
<source><![CDATA[Centro agricola]]></source>
<year>2003</year>
<volume>30</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>9-13</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[NOM-021-SEMARNAT: Norma Oficial Mexicana que establece las Especificaciones de Fertilidad, Salinidad y clasificación de suelos, estudio, muestreo y análisis]]></article-title>
<source><![CDATA[Diario Oficial de la Federación (DOF)]]></source>
<year>2002</year>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Adherencia y colonización de Pseudomonas fluorescens sobre sustratos sólidos: Influencia de la topografía y composición química de la superficie]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Buenos Aires, Argentina ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de la Plata, Facultad de Ciencias Exactas. Departamento de Química]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dufumier]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Agriculturas familiares, fertilidad de los suelos y sostenibilidad de los agroecosistemas]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Hidalgo]]></surname>
<given-names><![CDATA[F. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Houtart]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Lizárraga]]></surname>
<given-names><![CDATA[A. P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agriculturas campesinas en Latinoamérica: propuestas y desafíos]]></source>
<year>2014</year>
<publisher-loc><![CDATA[Quito, Ecuador ]]></publisher-loc>
<publisher-name><![CDATA[Editorial IAEN]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Farfán Valencia]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Café orgánico al sol y bajo sombrío. Una doble posibilidad para la zona cafetera de Colombia. Centro de investigaciones de Café]]></source>
<year>2010</year>
<page-range>2-8</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferreras]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Magra]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Besson]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Indicadores de calidad física en suelos de la región pampeana norte de argentina bajo siembra directa]]></article-title>
<source><![CDATA[Ciencia del suelo]]></source>
<year>2007</year>
<volume>25</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>159-72</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flores Vichi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La producción de café en México: ventana de oportunidad para el sector agrícola de Chiapas]]></article-title>
<source><![CDATA[Espacio I+D Innovación más Desarrollo]]></source>
<year>2015</year>
<volume>6</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>175-94</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frank]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Buckley]]></surname>
<given-names><![CDATA[C. P]]></given-names>
</name>
</person-group>
<source><![CDATA[Small-scale farmers and climate change. How can farmer organisations and Fairtrade build the adaptive capacity of small holders?]]></source>
<year>2012</year>
<publisher-loc><![CDATA[London, United Kingdom ]]></publisher-loc>
<publisher-name><![CDATA[International Institute for Enviroment and Develoment]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Galindo-Barrera]]></surname>
<given-names><![CDATA[H. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Definición de las tendencias de fertilidad en suelos cafeteros de Charalá, Coromoro y Ocamonte (Santander)]]></article-title>
<source><![CDATA[Ciencia y Agricultura]]></source>
<year>2013</year>
<volume>10</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>67-72</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Indicadores de la calidad de los suelos: una nueva manera de evaluar este recurso]]></article-title>
<source><![CDATA[Pastos y Forrajes]]></source>
<year>2012</year>
<volume>35</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>125-38</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garrigues]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Corson]]></surname>
<given-names><![CDATA[M. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Angers]]></surname>
<given-names><![CDATA[D. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Van der Werf]]></surname>
<given-names><![CDATA[H. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Walter]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil quality in Life Cycle Assessment: towards development of an indicator]]></article-title>
<source><![CDATA[Ecological Indicators]]></source>
<year>2012</year>
<volume>18</volume>
<page-range>434-42</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gile]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnston]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Salganik]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnostics for respondent-driven sampling]]></article-title>
<source><![CDATA[Journal of the Royal Statistical Society, Series A]]></source>
<year>2015</year>
<volume>18</volume>
<numero>178</numero>
<issue>178</issue>
<page-range>241-69</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gliessman]]></surname>
<given-names><![CDATA[S. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agroecología: Procesos Ecológicos en Agricultura Sostenible]]></source>
<year>2002</year>
<publisher-loc><![CDATA[Turrialba, Costa Rica ]]></publisher-loc>
<publisher-name><![CDATA[CATIE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Havlin]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Tisdale]]></surname>
<given-names><![CDATA[S. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Nelson]]></surname>
<given-names><![CDATA[W. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Beaton]]></surname>
<given-names><![CDATA[J. D]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil fertility and fertilizers: an introduction to nutrient management]]></source>
<year>2005</year>
<publisher-loc><![CDATA[United States of America ]]></publisher-loc>
<publisher-name><![CDATA[Pearson]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Flores]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Munive-Hernández]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandoval-Castro]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Carrera]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Villegas-Hernández]]></surname>
<given-names><![CDATA[M. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de las prácticas agrícolas sobre las poblaciones bacterianas del suelo en sistemas de cultivo en Chihuahua, México]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Agrícolas]]></source>
<year>2013</year>
<volume>4</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>353-65</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="">
<collab>Instituto Nacional de Estadística y Geografía (INEGI)</collab>
<source><![CDATA[Censo de Población y Vivienda]]></source>
<year>2010</year>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="">
<collab>Instituto Nacional de Estadística y Geografía (INEGI)</collab>
<source><![CDATA[Encuesta Intercensal]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jaramillo]]></surname>
<given-names><![CDATA[D. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introducción a la Ciencia del suelo]]></source>
<year>2002</year>
<publisher-loc><![CDATA[Medellín, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia. Facultad de Ciencias]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jha]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bacon]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Philpott]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rice]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Méndez]]></surname>
<given-names><![CDATA[V. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Laderach]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of ecosystem services, farmer livelihoods, and value chains in shade coffee agroecosystems]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Campbell]]></surname>
<given-names><![CDATA[B.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Lopez-Ortiz]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Integrating Agriculture, Conservation, and Ecotourism: Examples from the Field]]></source>
<year>2011</year>
<page-range>141-208</page-range><publisher-loc><![CDATA[New York, United States of America ]]></publisher-loc>
<publisher-name><![CDATA[Springer Academic Publishers]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jurjonas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Crossman]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Solomon]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lopez-Baez]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Potential Links Between Certified Organic Coffee and Deforestation in a Protected Area in Chiapas, Mexico]]></article-title>
<source><![CDATA[World Development]]></source>
<year>2016</year>
<volume>78</volume>
<page-range>13-21</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khalajabadi]]></surname>
<given-names><![CDATA[S. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fertilidad del suelo y nutrición del café en Colombia]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Chinchiná, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Cenicafé]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Labrador]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Guiberteau Cabanillas]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[López Benitez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes Pablos]]></surname>
<given-names><![CDATA[J. L]]></given-names>
</name>
</person-group>
<source><![CDATA[La Materia orgánica en los agrosistemas. Manejo y Utilización]]></source>
<year>2001</year>
<publisher-loc><![CDATA[Madrid. España ]]></publisher-loc>
<publisher-name><![CDATA[Ministerio de Agricultura, Pesca y Alimentación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lammel]]></surname>
<given-names><![CDATA[D. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Azevedo]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Paula]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Armas]]></surname>
<given-names><![CDATA[R. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Baretta]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[E. J. B. N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbiological and faunal soil attributes of coffee cultivation under different management systems in Brazil]]></article-title>
<source><![CDATA[Brazilian Journal of Biology]]></source>
<year>2015</year>
<volume>75</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>894-905</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Larios-González]]></surname>
<given-names><![CDATA[R. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Salmerón-Miranda]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Centero]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fertilidad del suelo con prácticas agroecológicas y manejo convencional en el cultivo de café]]></article-title>
<source><![CDATA[La Calera]]></source>
<year>2014</year>
<volume>14</volume>
<numero>23</numero>
<issue>23</issue>
<page-range>67-75</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano]]></surname>
<given-names><![CDATA[P. Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernandéz]]></surname>
<given-names><![CDATA[R. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bravo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ojeda]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mogollón]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rivero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Toro]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cambios en las propiedades químicas de un suelo de sabana luego de la introducción de pasturas mejoradas]]></article-title>
<source><![CDATA[Bioagro]]></source>
<year>2010</year>
<volume>22</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>135-44</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Machado Vargas]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Nicholls]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Márquez]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Turbay]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización de nueve agroecosistemas de café de la cuenca del río Porce, Colombia, con un enfoque agroecológico]]></article-title>
<source><![CDATA[Idesia]]></source>
<year>2015</year>
<volume>33</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>69-83</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mantecón, A.]]></surname>
<given-names><![CDATA[Juan M.]]></given-names>
</name>
<name>
<surname><![CDATA[Calafat]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Becoña]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Román]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respondent-Driven Sampling: un nuevo método de muestreo para el estudio de poblaciones visibles y ocultas]]></article-title>
<source><![CDATA[Adicciones]]></source>
<year>2008</year>
<volume>20</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>161-9</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Evangelista]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Basurto]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz-Rivas]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Flora útil de los cafetales en la Sierra Norte de Puebla, México]]></article-title>
<source><![CDATA[Revista Mexicana de Biodiversidad]]></source>
<year>2007</year>
<volume>78</volume>
<page-range>15-40</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mason]]></surname>
<given-names><![CDATA[R. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[O. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallina]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Mehltreter]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agroecosistemas cafetaleros de Veracruz: biodiversidad, manejo y conservación]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Distrito Federal, México ]]></publisher-loc>
<publisher-name><![CDATA[Instituto de Ecología A.C.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mercer]]></surname>
<given-names><![CDATA[D. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adoption of Agroforestry Innovations in the Tropics: A Review]]></article-title>
<source><![CDATA[Agroforestry Systems]]></source>
<year>2004</year>
<volume>61</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>311-28</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meylan]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Merot]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gary]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Rapidel]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combining a typology and a conceptual model of cropping system to explore the diversity of relationships between ecosystem services: The case of erosion control in coffee-based agroforestry systems in Costa Rica]]></article-title>
<source><![CDATA[Agricultural Systems]]></source>
<year>2013</year>
<volume>118</volume>
<page-range>52-64</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno Sarmiento]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La agricultura sostenible un reto para la microbiología del suelo]]></article-title>
<source><![CDATA[Revista Colombiana de Biotecnología]]></source>
<year>2016</year>
<volume>18</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5-6</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mudgal]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Turbé]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[DeToni]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lavelle]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Benito]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Van der Putten]]></surname>
<given-names><![CDATA[W. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil biodiversity: functions, threats and tools for policy makers]]></source>
<year>2010</year>
<publisher-loc><![CDATA[París, Francia ]]></publisher-loc>
<publisher-name><![CDATA[Bio Intelligence Service, Institut de Recherse Pour le Développement, NIOO]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray Nuñez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bojórquez Serrano]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández Jimenez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Orozco Benitez]]></surname>
<given-names><![CDATA[M. G]]></given-names>
</name>
<name>
<surname><![CDATA[García Paredes]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez Aguilar]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ontiveros Guerra]]></surname>
<given-names><![CDATA[H. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre Ortega]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la materia orgánica sobre las propiedades físicas del suelo en un sistema agroforestal de la llanura costera norte de nayarit, México]]></article-title>
<source><![CDATA[Revista Bio Ciencias]]></source>
<year>2011</year>
<volume>1</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>27-35</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nicholls]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Enfoque agroecológico para incrementar la resiliencia de los sistemas agrícolas al cambio climático]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Nicholls]]></surname>
<given-names><![CDATA[E. C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Ríos]]></surname>
<given-names><![CDATA[O. L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Altieri]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agroecología y resiliencia socioecológicas:adaptándose al cambio climático]]></source>
<year>2013</year>
<publisher-loc><![CDATA[Medellín, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[REDAGRE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Noriega Altamirano]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Cárcamo Rico]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez Cruz]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Schwentesius Rindermann]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz Hernández]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Leyva Baeza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[García de la Rosa]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[López Reyes]]></surname>
<given-names><![CDATA[U. I]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez Hernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intensificación de la producción en la agricultura orgánica: caso café]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Agrícolas]]></source>
<year>2014</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>163-9</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ojeda Quintana]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Oropesa]]></surname>
<given-names><![CDATA[A. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Castañeda]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Eupierre]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chirino]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geomorfología, propiedades físicas y principales componentes de la fertilidad del suelo en un bosque semideciduomesófilo natural y en zonas de colecciones de plantas del Jardín Botánico de Cienfuegos]]></article-title>
<source><![CDATA[Centro Agri&#769;cola]]></source>
<year>2007</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>21-7</page-range></nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez Díaz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bustamante González]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Martín Alonso]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rivera Espinosa]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la fertilización nitrogenada en el cafeto conilon sobre el rendimiento y algunos indicadores de calidad de suelos cambisoles de cuba]]></article-title>
<source><![CDATA[Holos Environment]]></source>
<year>2014</year>
<volume>14</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>49-61</page-range></nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quinchía]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[F. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Palencia Penagos]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Giraldo Lopera]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de la resistencia de un aislado bacteriano nativo compatible con pseudomona sp. al insecticida lorsban 4 ec]]></article-title>
<source><![CDATA[Revista EIA]]></source>
<year>2006</year>
<numero>5</numero>
<issue>5</issue>
<page-range>101-8</page-range></nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RamírezValverde]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[González Romo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La migración como respuesta de los campesinos ante la crisis del café: estudio en tres municipios del Estado de Puebla]]></article-title>
<source><![CDATA[Ra Ximhai]]></source>
<year>2006</year>
<volume>2</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>319-41</page-range></nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaramillo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gestión del riesgo agroclimático: vulnerabilidad y capacidad de adaptación del sistema de producción de café]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Gast]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Benavides]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanz]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[V. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Cristancho]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Márin]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual del cafetero colombiano Investigación Tecnología para la sostenibilidad en la de la caficultura]]></source>
<year>2013</year>
<volume>I</volume>
<page-range>91-114</page-range><publisher-loc><![CDATA[Bogotá, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Federación Nacional de Cafeteros de Colombia, Legis]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Valery]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la fertilidad del suelo sobre la microbiota y la promoción del crecimiento Del maíz (Zea mays l.) Con Azotobacter spp.]]></article-title>
<source><![CDATA[Bioagro]]></source>
<year>2007</year>
<volume>19</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>117-26</page-range></nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rivadeneyra Pasquel]]></surname>
<given-names><![CDATA[J. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez Valverde]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El comercio local del café a raíz de su crisis en la Sierra Norte de Puebla]]></article-title>
<source><![CDATA[Revista Mexicana de Agronegocios]]></source>
<year>2006</year>
<volume>X</volume>
<numero>18</numero>
<issue>18</issue>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B60">
<nlm-citation citation-type="">
<collab>Secretaria de Desarrollo Agrario, Territorial y Urbano (Sedatu)</collab>
<source><![CDATA[Atlas de riesgos naturales del Municipio de Pahuatlan, Puebla]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B61">
<nlm-citation citation-type="journal">
<collab>Secretaría de Desarrollo Social (Sedesol)</collab>
<article-title xml:lang=""><![CDATA[Reglas de Operación del Programa para el Desarrollo de Zonas Prioritarias para el ejercicio fiscal 2014]]></article-title>
<source><![CDATA[Diario Oficial de la Federación]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B62">
<nlm-citation citation-type="journal">
<collab>Secretaría de Desarrollo Social (Sedesol)</collab>
<article-title xml:lang=""><![CDATA[Reglas de Operación del Programa para el Desarrollo de Zonas Prioritarias para el ejercicio fiscal 2014]]></article-title>
<source><![CDATA[Diario Oficial de la Federación]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B63">
<nlm-citation citation-type="">
<collab>Servicio de Información Agroalimentaria y Pesquera (SIAP)</collab>
<source><![CDATA[]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B64">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Khera]]></surname>
<given-names><![CDATA[K. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical Indicators of Soil Quality in Relation to Soil Erodibility Under Different Land Uses]]></article-title>
<source><![CDATA[Arid Land Research and Management]]></source>
<year>2009</year>
<volume>23</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>152-67</page-range></nlm-citation>
</ref>
<ref id="B65">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[H. N.]]></given-names>
</name>
<name>
<surname><![CDATA[de Goede]]></surname>
<given-names><![CDATA[R. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Brussaard]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[I. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Duarte]]></surname>
<given-names><![CDATA[E. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandes]]></surname>
<given-names><![CDATA[R. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gomes]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pulleman]]></surname>
<given-names><![CDATA[L. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Protective shade, tree diversity and soil properties in coffee agroforestry systems in the Atlantic Rainforest biome]]></article-title>
<source><![CDATA[Agriculture, Ecosystems and Environment]]></source>
<year>2012</year>
<volume>146</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>179-96</page-range></nlm-citation>
</ref>
<ref id="B66">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sylvia]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hartel]]></surname>
<given-names><![CDATA[P. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Fuhrmann]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zuberer]]></surname>
<given-names><![CDATA[D. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Principle and applications of soilmicrobiology]]></source>
<year>2005</year>
<publisher-loc><![CDATA[New Jersey, United States of America ]]></publisher-loc>
<publisher-name><![CDATA[Pearson Prentice Hall]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B67">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Temis-Pérez]]></surname>
<given-names><![CDATA[A. L.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Malo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa-Morales]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Producción de café (Coffea arabica L.): cultivo, beneficio, plagas y enfermedades]]></article-title>
<source><![CDATA[Temas Selectos de Ingeniería de Alimentos]]></source>
<year>2011</year>
<volume>5</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>54-74</page-range></nlm-citation>
</ref>
<ref id="B68">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weil]]></surname>
<given-names><![CDATA[R. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Brady]]></surname>
<given-names><![CDATA[N. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[The nature and properties of soils]]></source>
<year>1990</year>
<publisher-loc><![CDATA[New York, United States of America ]]></publisher-loc>
<publisher-name><![CDATA[Maxwell McMillan International Publishing Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B69">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wezel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bellon]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Doré]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Francis]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Vallod]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[David]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Agroecology as a science, a movement and practice. A review]]></article-title>
<source><![CDATA[Agronomy for sustainable development]]></source>
<year>2009</year>
<volume>29</volume>
<page-range>503-15</page-range></nlm-citation>
</ref>
<ref id="B70">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Youkhana]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Idol]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tree pruning mulch increases soil C and N in a shaded coffee agroecosystem in Hawaii]]></article-title>
<source><![CDATA[Soil Biology y Biochemistry]]></source>
<year>2009</year>
<volume>41</volume>
<page-range>12</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
