<?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>1659-1321</journal-id>
<journal-title><![CDATA[Agronomía Mesoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Mesoam]]></abbrev-journal-title>
<issn>1659-1321</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-13212017000200499</article-id>
<article-id pub-id-type="doi">10.15517/ma.v28i2.22236</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Incremento de la materia orgánica del suelo sobre el rendimiento del mango en luvisoles, Campeche, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Soil organic matter increase on fruit yield of mango trees, in Luvisols of Campeche, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Méndez]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Volke-Haller]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galvis-Spínola]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortés-Flores]]></surname>
<given-names><![CDATA[José Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santiago-Cruz]]></surname>
<given-names><![CDATA[Ma. de Jesús]]></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 (INIFAP)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>MX</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>MX</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>MX</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>MX</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>MX</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>499</fpage>
<lpage>508</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-13212017000200499&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-13212017000200499&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-13212017000200499&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del presente trabajo fue determinar el efecto del incremento de la materia orgánica del suelo sobre el rendimiento de mango en condiciones de riego, en luvisoles del Estado de Campeche, México. En 48 huertos comerciales de mango con distintos periodos de uso del suelo y cinco sitios de vegetación de bosque natural, se muestreó el suelo para determinar propiedades físicas y químicas. Además, se realizó un muestreo de hojas y se tomó información sobre manejo del sistema y rendimiento del cultivo. La información se analizó mediante regresión. A partir del contenido de materia orgánica del suelo derivado de un uso continuo de maíz de temporal u hortalizas con riego como punto de referencia, el sistema del cultivo de mango con riego aumentó el contenido de materia orgánica de 3,26% en el periodo de 1 a 5 años a 5,66% en el periodo de 16 a 30 años, con un valor de 5,36% en el sistema de vegetación de bosque natural. El incremento de la materia orgánica del suelo en conjunto con la edad de los árboles aumentó el rendimiento de mango en 9,5 t/ha después de 26 a 30 años de cultivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of this study was to determinate the effect of increasing soil organic matter on fruit yield of mango trees under irrigated conditions, in Luvisols of Campeche State, Mexico. In every 48 commercial orchards and five sites under natural forest vegetation, soil samples were taken in order to determine physical and chemical properties. Furthermore, in orchards sites, leaf sampling was carried out, and data on orchard management practices and fruit yield also were registered. The collected data was analyzed using regression analysis. From soil organic matter content in continues sole maize cropping system under rainfed agriculture or irrigated vegetables, soil organic matter content in mango orchards increased from 3.26% in a period since 1 to 5 years to 5.66% after a period of 16 to 30 years. In soil under natural forest vegetation, organic matter content was 5.36%. Increasing soil organic matter content and tree age, fruit yield increased by 9.5 t/ha after 26 to 30 years under cultivation.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[propiedades del suelo]]></kwd>
<kwd lng="es"><![CDATA[sistemas agrícolas]]></kwd>
<kwd lng="es"><![CDATA[vegetación natural de bosque]]></kwd>
<kwd lng="es"><![CDATA[Mangifera indica L]]></kwd>
<kwd lng="en"><![CDATA[soil properties]]></kwd>
<kwd lng="en"><![CDATA[agricultural systems]]></kwd>
<kwd lng="en"><![CDATA[natural forest vegetation]]></kwd>
<kwd lng="en"><![CDATA[Mangifera indica L]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguilar-Castillo]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallegos-Méndez]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Producción de maíz de temporal en los suelos mecanizables de la Península de Yucatán. Folleto Técnico 6]]></source>
<year>1993</year>
<publisher-loc><![CDATA[Campeche, MEX ]]></publisher-loc>
<publisher-name><![CDATA[Centro de Investigación Regional del Sureste, INIFAP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alcántar-González]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandoval-Villa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de análisis químico de tejido vegetal. Publicación Especial 10.]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Chapingo, MEX ]]></publisher-loc>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo, A.C.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Soil aggregation and soil organic carbon stabilization: effects of management in semiarid mediterranean agroecosystems]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarado-Fuentes]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cantero-Martinez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[M.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Paustian]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Denef]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Stewart]]></surname>
<given-names><![CDATA[C.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Arru]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil Sci. Soc. J.]]></source>
<year>2009</year>
<volume>73</volume>
<page-range>1519-29</page-range></nlm-citation>
</ref>
<ref id="B4">
<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 suelo y aguas]]></source>
<year>2000</year>
<edition>2</edition>
<publisher-loc><![CDATA[San Miguel de Allende, MEX ]]></publisher-loc>
<publisher-name><![CDATA[INCAPA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cuanalo-de-la]]></surname>
<given-names><![CDATA[H.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ojeda-Trejo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos-Ocampo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz-Solorio]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Provincias, regiones y subregiones terrestres de México]]></source>
<year>1989</year>
<publisher-loc><![CDATA[Montecillo, MEX ]]></publisher-loc>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Controls on long-term root and leaf litter decomposition in neotropical forest]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cusack]]></surname>
<given-names><![CDATA[D.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Chou]]></surname>
<given-names><![CDATA[W.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[W.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Harmon]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Silver]]></surname>
<given-names><![CDATA[W.I.]]></given-names>
</name>
</person-group>
<collab>The Lidet Team</collab>
<source><![CDATA[Global Change Biol.]]></source>
<year>2009</year>
<volume>15</volume>
<page-range>1339-55</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Galvis-Spínola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Quintero-Lizaola]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[La edafología y sus perspectivas al siglo XXI. Tomo I]]></source>
<year>2000</year>
<page-range>351-68</page-range><publisher-loc><![CDATA[Montecillo, MEX ]]></publisher-loc>
<publisher-name><![CDATA[CP-UNAM-UACH]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Havlin]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Beaton]]></surname>
<given-names><![CDATA[J.D.]]></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>
</person-group>
<source><![CDATA[Soil fertility and fertilizers]]></source>
<year>1999</year>
<edition>6</edition>
<publisher-loc><![CDATA[NJ, USA ]]></publisher-loc>
<publisher-name><![CDATA[Prentice Hall]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="">
<collab>INEGI (Instituto Nacional de Estadística y Geografía)</collab>
<source><![CDATA[Información estadística y geográfica de la República Mexicana]]></source>
<year>2002</year>
<publisher-loc><![CDATA[Campeche, MEX ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="">
<collab>INEGI (Instituto Nacional de Estadística y Geografía)</collab>
<source><![CDATA[Información estadística y geográfica de la República Mexicana]]></source>
<year>2004</year>
<publisher-loc><![CDATA[Campeche, MEX. ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="">
<collab>INEGI (Instituto Nacional de Estadística y Geografía)</collab>
<source><![CDATA[Anuario estadístico y geográfico de Campeche]]></source>
<year>2015</year>
<publisher-loc><![CDATA[MEX ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<collab>Kolimorgan Corporation</collab>
<source><![CDATA[Soil color charts]]></source>
<year>1975</year>
<publisher-loc><![CDATA[MD, USA ]]></publisher-loc>
<publisher-name><![CDATA[Munsell Color Macbeth, Kolimorgan Corporation]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ku-Naal]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Tucuch-Cauich]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Estrada-Vivas]]></surname>
<given-names><![CDATA[J.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios-Pérez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Ávila]]></surname>
<given-names><![CDATA[J.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz-Padilla]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez-Bueno]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-Jaramillo]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Determinación de potencial productivo para el cultivo de maíz en el estado de Campeche]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Campeche, MEX. ]]></publisher-loc>
<publisher-name><![CDATA[Centro de Investigación Regional del Sureste, INIFAP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Organic matter and aggregate size interactions in infiltration, seal formation and soil loss]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lao]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Paz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ben]]></surname>
<given-names><![CDATA[H.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil Sci. Soc. Am. J.]]></source>
<year>2004</year>
<volume>68</volume>
<page-range>935-42</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Plantation on management intensity affects belowground carbon and nitrogen storage in Northern California]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[McFarlane]]></surname>
<given-names><![CDATA[K.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Schoenholtz]]></surname>
<given-names><![CDATA[S.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Powers]]></surname>
<given-names><![CDATA[R.F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil Sci. J.]]></source>
<year>2009</year>
<volume>73</volume>
<page-range>1020-32</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cambios en las propiedades físicas del suelo a través del tiempo en los sistemas de maíz bajo temporal y mango bajo riego en Luvisoles del Estado de Campeche]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Medina-Méndez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Volke-Haller]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Ríos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Galvis-Spínola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Santiago-Cruz]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés-Flores]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Universidad y Ciencia]]></source>
<year>2006</year>
<volume>22</volume>
<page-range>176-86</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The role of biology in the formation, stabilization and degradation of soil structure]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oades]]></surname>
<given-names><![CDATA[J.M]]></given-names>
</name>
</person-group>
<source><![CDATA[Geoderma]]></source>
<year>1993</year>
<volume>56</volume>
<page-range>377-400</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Raison]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rab]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Raison]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Criteria and indicators for sustainable forest management]]></source>
<year>2001</year>
<volume>7</volume>
<page-range>215-58</page-range><publisher-loc><![CDATA[Wallington, GBR ]]></publisher-loc>
<publisher-name><![CDATA[CAB International and International Union of Forestry Research Organizations]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Salgado-García]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Palma-López]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cisneros-Domínguez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de procedimientos para el muestreo de suelos, plantas y aguas, e interpretación en cultivos tropicales]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Colegio de Postgraduados ]]></publisher-loc>
<publisher-name><![CDATA[Villahermosa, MEX]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<collab>SEMARNAT (Secretaría del Medio Ambiente y Recursos Naturales)</collab>
<source><![CDATA[NOM-021-RECNAT-2000: especificaciones de fertilidad, salinidad y clasificación de suelos. Estudio, muestreo y análisis]]></source>
<year>2002</year>
<publisher-loc><![CDATA[MEX ]]></publisher-loc>
<publisher-name><![CDATA[SEMARNAT, Diario Oficial (segunda sección)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Soil macroaggregate turnover and microaggregate formation: A mechanism for C sequestration under no-tillage agriculture]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Six]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Elliott]]></surname>
<given-names><![CDATA[E.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Paustian]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil Biol. Biochem.]]></source>
<year>2000</year>
<volume>32</volume>
<page-range>2099-103</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Stabilization mechanisms of soil organic matter: implications for C-saturation of soils]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Six]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Conant]]></surname>
<given-names><![CDATA[R.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Paul]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Paustian]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Plant Soil]]></source>
<year>2002</year>
<volume>241</volume>
<page-range>155-76</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Soil organic matter, biota and aggregation in temperate and tropical soils: effects of no-tillage]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Six]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Feller]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Denef]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Ogle]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sa]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Albrecht]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agronomie]]></source>
<year>2002</year>
<volume>22</volume>
<page-range>755-75</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Soil nutrient balances: what use for policy?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Scoones]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Toulmin]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agric. Ecosyst. Environ.]]></source>
<year>1998</year>
<volume>71</volume>
<page-range>255-67</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effect of tillage and crop rotation on the surface stability and chemical properties of a red-brown earth (Alfisol) under wheat]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smettem]]></surname>
<given-names><![CDATA[K.R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rovira]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wace]]></surname>
<given-names><![CDATA[B.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Simon]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil Till. Res.]]></source>
<year>1992</year>
<volume>22</volume>
<page-range>27-40</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Controls on the sorption, desorption and mineralization of low-molecular-weight organic acids in variable-change soils]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Strahm]]></surname>
<given-names><![CDATA[B.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Harrison]]></surname>
<given-names><![CDATA[R.B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil Sci. Soc. Am. J.]]></source>
<year>2008</year>
<volume>72</volume>
<page-range>1653-64</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tucuch-Cahuich]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios-Pérez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ku-Naal]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Guzmán-Estrada]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manejo del cultivo de mango en el estado de Campeche]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Campeche, MEX ]]></publisher-loc>
<publisher-name><![CDATA[INIA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Producción de maíz bajo riego en el Sur-Sureste de México. I. Análisis agronómico]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Turrent-Fernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Camas-Gómez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Luna]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cantú-Almaguer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-Silva]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Medina-Méndez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Palafox-Caballero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agric. Téc.]]></source>
<year>2004</year>
<volume>30</volume>
<page-range>153-67</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[La materia orgánica del suelo como función de factores físicos y el uso y manejo del suelo]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Volke-Haller]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Frausto-Reyes]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Merino-Bazán]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Terra]]></source>
<year>1993</year>
<volume>11</volume>
<page-range>85-91</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Volke-Haller]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimación de funciones de respuesta para información de tipo no experimental, mediante regresión]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Montecillo, MEX ]]></publisher-loc>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
