<?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>0377-9424</journal-id>
<journal-title><![CDATA[Agronomía Costarricense]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Costarricense]]></abbrev-journal-title>
<issn>0377-9424</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica. Colegio de Ingenieros y Agrónomos. Ministerio de Agricultura y Ganadería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0377-94242022000200085</article-id>
<article-id pub-id-type="doi">10.15517/rac.v46i2.52050</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Crotalaria spectabilis Roth como cobertura en café (Coffea arabica L) para el manejo de malezas *]]></article-title>
<article-title xml:lang="en"><![CDATA[Crotalaria spectabilis Roth as a cover crop in coffee (Coffea arabica) and weed control.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Gómez]]></surname>
<given-names><![CDATA[Robin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cháves-Sánchez]]></surname>
<given-names><![CDATA[Eric]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Lutz]]></surname>
<given-names><![CDATA[María Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica Estación Experimental Agrícola Fabio Baudrit Moreno ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Costa Rica Estación Experimental Agrícola Fabio Baudrit Moreno ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Costa Rica Escuela de Estadística ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</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>46</volume>
<numero>2</numero>
<fpage>85</fpage>
<lpage>100</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0377-94242022000200085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0377-94242022000200085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0377-94242022000200085&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Introducción. El establecimiento de cultivos de cobertura como Crotalaria spectabilis es una práctica agroecológica con múltiples beneficios agronómicos y ambientales. Objetivos. Evaluar el efecto de 3 métodos de siembra de C. spectabilis en café en el control de malezas, acúmulo de nitrógeno y fijación de carbono. Además, determinar el periodo de espera entre el control de malezas y la siembra de C. spectabilis, y la tolerancia de C. spectabilis a herbicidas post emergentes. Materiales y métodos. El primer experimento se realizó en Orosi, Costa Rica, en el 2017. C. spectabilis fue sembrada mediante 3 métodos en medio de las hileras de siembra del café. El segundo experimento se realizó en un invernadero en Alajuela, en el 2018. Se aplicó glifosato, glufosinato de amonio y diquat sobre potes llenos con suelo. Luego de 0, 4 y 8 días se sembró C. spectabilis con y sin cobertura de suelo. En el tercer experimento se sembraron en potes semillas de C. spectabilis; cuando las plantas tenían 2, 3 y 4 hojas verdaderas se aplicó fluazifop-p-butil, cletodim y bentazona, asimismo las mezclas fluazifop-p-butil + bentazona y cletodim + bentazona. Resultados. En Orosi, todos los tratamientos lograron una reducción de cobertura de malezas menor al 26%, en comparación con el testigo. La tasa de crecimiento relativo de C. spectabilis fue baja y similar en las 3 metodologías de siembra. La acumulación de nitrógeno y la absorción de CO2 fue mayor en el tratamiento de hileras tapadas (81,46 kg.ha-1 N y 6,20 t.ha-1 CO2, respectivamente). En invernadero, no se observó un efecto negativo de ningún herbicida sobre la germinación ni el crecimiento de C. spectabilis. Conclusión. Debido a la competencia con las malezas, no fue posible establecer C. spectabilis como cobertura en café, sin embargo el uso de los herbicidas evaluados en invernadero permitieron controlar las malezas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Introduction. The establishment of cover crops like C. spectabilis is an agroecological practice with multiple agronomic and environmental benefits. Objectives. To evaluate the effect of 3 C. spectabilis planting methods in coffee on weed control, nitrogen accumulation, and carbon fixation. Also, to determine the period between weed control and C. spectabilis sowing, and the tolerance of C. spectabilis to postemergence herbicides. Materials and methods. The first experiment was carried out in Orosi, Costa Rica, in 2017. C. spectabilis was planted in between coffee planting rows using three methods. The second experiment was carried out in a greenhouse in Alajuela, in 2018. Herbicides glhyphosate, glufosinate ammonium, and diquat were sprayed over pots filled with soil. C. spectabilis was planted 0, 4 and 8 days after spraying, both covered with soil and without cover. For the third experiment C. spectabilis was planted in pots, and when the plants had 2, 3, and 4 leaves, the herbicides fluazifop-p-butyl, clethodim, and bentazon, and the mixes fluazifop-p-butil + bentazon and clethodim + bentazon were sprayed. Results. In Orosi, weed cover was reduced in all treatments by less than 26%, compared to the control. C. spectabilis relative growth rate was low and similar in the 3 planting methods. Nitrogen accumulation and carbon absorption was highest in the covered rows (81.46 kg.ha-1 N and 6.20 t.ha-1 CO2, respectively). In the greenhouse, no negative effect on seed germination or plant growth of C. spectabilis was observed by any treatment. Conclusion. Due to weed competition, it was not possible to establish C. spectabilis as a cover crop in coffee, however herbicides evaluated in a greenhouse could potentially control those weeds.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Manejo integrado de malezas]]></kwd>
<kwd lng="es"><![CDATA[abonos verdes]]></kwd>
<kwd lng="es"><![CDATA[cultivos de cobertura]]></kwd>
<kwd lng="es"><![CDATA[herbicidas pre y posemergentes]]></kwd>
<kwd lng="en"><![CDATA[Integrated weed management]]></kwd>
<kwd lng="en"><![CDATA[green manure]]></kwd>
<kwd lng="en"><![CDATA[cover crops]]></kwd>
<kwd lng="en"><![CDATA[pre and post emergence herbicides]]></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[Bertsch]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Absorción de nutrientes por los cultivos.]]></source>
<year>2009</year>
<page-range>308</page-range><publisher-loc><![CDATA[San José, Costa Rica ]]></publisher-loc>
<publisher-name><![CDATA[Asociación Costarricense de la Ciencia del Suelo.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Braz]]></surname>
<given-names><![CDATA[GP]]></given-names>
</name>
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Constantin]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Takano]]></surname>
<given-names><![CDATA[HK]]></given-names>
</name>
<name>
<surname><![CDATA[Chase]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Fornazza]]></surname>
<given-names><![CDATA[FGF]]></given-names>
</name>
<name>
<surname><![CDATA[Raimondi]]></surname>
<given-names><![CDATA[RT.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selection of herbicides targeting the use in crop systems cultivated with showy Crotalaria.]]></article-title>
<source><![CDATA[Planta Daninha]]></source>
<year>2015</year>
<volume>33</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>521-34</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Braz]]></surname>
<given-names><![CDATA[GP]]></given-names>
</name>
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Constantin]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Takano]]></surname>
<given-names><![CDATA[HK]]></given-names>
</name>
<name>
<surname><![CDATA[Godinho]]></surname>
<given-names><![CDATA[FB.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selectivity of herbicides applied in post-emergence of showy Crotalaria.]]></article-title>
<source><![CDATA[Revista Caatinga]]></source>
<year>2016</year>
<volume>29</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>918-26</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Camper]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Research methods in weed science]]></source>
<year>1986</year>
<publisher-loc><![CDATA[Illinois, Estados Unidos ]]></publisher-loc>
<publisher-name><![CDATA[Southern Weed Science Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carvajal]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mota]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Alcaraz]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Iglesias]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Investigación sobre la absorción de CO2 por los cultivos más representativos de la Región de Murcia.]]></source>
<year>2014</year>
<page-range>41</page-range><publisher-loc><![CDATA[Murcia, España ]]></publisher-loc>
<publisher-name><![CDATA[Consejo Superior de Investigaciones Científicas]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chaves]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preguntas frecuentes relacionadas con el Nitrógeno.]]></article-title>
<source><![CDATA[Revista Informativa del Instituto del Café de Costa Rica.]]></source>
<year>2008</year>
<page-range>16</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
<name>
<surname><![CDATA[Chase]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Treadwell]]></surname>
<given-names><![CDATA[DD]]></given-names>
</name>
<name>
<surname><![CDATA[Koenig]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[JB]]></given-names>
</name>
<name>
<surname><![CDATA[Morales-Payan]]></surname>
<given-names><![CDATA[JP.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Apical dominance and planting density effects on weed suppression by Sunn Hemp (Crotalaria juncea L.).]]></article-title>
<source><![CDATA[HortScience]]></source>
<year>2015</year>
<volume>50</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>263-7</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Carvalho Dias]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Mendes]]></surname>
<given-names><![CDATA[KF]]></given-names>
</name>
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[CG]]></given-names>
</name>
<name>
<surname><![CDATA[Melo]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Teixeira]]></surname>
<given-names><![CDATA[MFF]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[DV]]></given-names>
</name>
<name>
<surname><![CDATA[Reis]]></surname>
<given-names><![CDATA[MR.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seletividade inicial de herbicidas aplicados em pós-emergência da crotalária.]]></article-title>
<source><![CDATA[Revista Brasileira de Herbicidas]]></source>
<year>2017</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>76-83</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Di Benedetto]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Tognetti]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Técnicas de análisis de crecimiento de plantas: su aplicación a cultivos intensivos.]]></article-title>
<source><![CDATA[Revista de investigaciones agropecuarias]]></source>
<year>2016</year>
<volume>42</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>258-82</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dos Santos]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rodrigues]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cultivo de Crotalaria spectabilis intercalada ao café Arábica plantado em diferentes espaçamentos sob manejo orgânico.]]></source>
<year>2006</year>
<page-range>21</page-range><publisher-loc><![CDATA[Seropédica, Brasil. ]]></publisher-loc>
<publisher-name><![CDATA[Embrapa Agrobiologia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Girardi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Evaluation of different species of cover crops as a sustainable strategy for weed management and soil fertility preservation in high quality coffee plantation (Coffea arabica) in Costa Rica.]]></source>
<year>2020</year>
<page-range>127</page-range><publisher-loc><![CDATA[Pisa, Italia ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Pisa]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guzmán]]></surname>
<given-names><![CDATA[GI]]></given-names>
</name>
<name>
<surname><![CDATA[Alonso]]></surname>
<given-names><![CDATA[AM.]]></given-names>
</name>
</person-group>
<source><![CDATA[Buenas prácticas en producción ecológica: uso de abonos verdes]]></source>
<year>2008</year>
<page-range>22</page-range><publisher-loc><![CDATA[Madrid, España ]]></publisher-loc>
<publisher-name><![CDATA[Ministerio de Medio Ambiente y Medio Rural y Marino.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hosmer]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Lemeshow]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Applied logistic regression.]]></source>
<year>2000</year>
<page-range>375</page-range><publisher-loc><![CDATA[Nueva York, Estados Unidos ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley &amp; Sons INC.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[YL]]></given-names>
</name>
<name>
<surname><![CDATA[Zeng]]></surname>
<given-names><![CDATA[DH]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[XQ]]></given-names>
</name>
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[SX.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root rather than leaf litter input drives soil carbon sequestration after afforestation on a marginal cropland.]]></article-title>
<source><![CDATA[Forest Ecology and Management]]></source>
<year>2016</year>
<volume>362</volume>
<page-range>38-45</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="">
<collab>ICAFE</collab>
<source><![CDATA[Informe sobre la actividad cafetalera de Costa Rica.]]></source>
<year>2015</year>
<page-range>62</page-range><publisher-loc><![CDATA[Heredia, Costa Rica ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="">
<collab>ICAFE</collab>
<source><![CDATA[Costos de producción agrícola de café fruta cosecha 2018-2019]]></source>
<year>2019</year>
<page-range>5</page-range><publisher-loc><![CDATA[Heredia, Costa Rica ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Farfan]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biomasa seca y contenido de nutrientes de Cajanus cajan, Crotalaria juncea y Tephrosia candida empleadas como abonos verdes en cafetales.]]></article-title>
<source><![CDATA[Cenicafé]]></source>
<year>2005</year>
<volume>56</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>93-109</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Farfan]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Descomposición y transferencia de nutrientes de Cajanus cajan, Crotalaria juncea y Tephrosia candida como abonos verdes en cafetales.]]></article-title>
<source><![CDATA[Cenicafé]]></source>
<year>2005</year>
<volume>56</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>216-36</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martins]]></surname>
<given-names><![CDATA[BH]]></given-names>
</name>
<name>
<surname><![CDATA[Araujo-Junior]]></surname>
<given-names><![CDATA[CF]]></given-names>
</name>
<name>
<surname><![CDATA[Miyazawa]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
<name>
<surname><![CDATA[Milori]]></surname>
<given-names><![CDATA[DM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil organic matter quality and weed diversity in coffee plantation area submitted to weed control and cover crops management.]]></article-title>
<source><![CDATA[Soil and Tillage Research]]></source>
<year>2015</year>
<volume>153</volume>
<page-range>169-74</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meschede]]></surname>
<given-names><![CDATA[DK.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Avaliação de diferentes coberturas na supressão de plantas daninhas no cerrado.]]></article-title>
<source><![CDATA[Planta Daninha]]></source>
<year>2007</year>
<volume>25</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>465-71</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Molina]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Manejo de suelos y fertilización en café.]]></article-title>
<source><![CDATA[Fertilidad de suelos y manejo de la nutrición de cultivos en Costa Rica.]]></source>
<year>2001</year>
<publisher-loc><![CDATA[Universidad de Costa Rica. ]]></publisher-loc>
<publisher-name><![CDATA[Centro de Investigaciones Agronómicas]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Navarro]]></surname>
<given-names><![CDATA[JR.]]></given-names>
</name>
</person-group>
<source><![CDATA[La técnica del área bajo la curva. Centro de Investigaciones en Protección de Cultivos.]]></source>
<year>2012</year>
<page-range>6</page-range><publisher-loc><![CDATA[San José, Costa Rica ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Costa Rica.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Puiatti]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[de Oliveira]]></surname>
<given-names><![CDATA[NLC]]></given-names>
</name>
<name>
<surname><![CDATA[Cecon]]></surname>
<given-names><![CDATA[PR]]></given-names>
</name>
<name>
<surname><![CDATA[da Silva Bhering]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Consorciação de Taro e Crotalária Manejada com corte rente ao solo e poda na altura do dosel.]]></article-title>
<source><![CDATA[Ceres]]></source>
<year>2015</year>
<volume>62</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>275-83</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Recalde]]></surname>
<given-names><![CDATA[KMG]]></given-names>
</name>
<name>
<surname><![CDATA[Carneiro]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
<name>
<surname><![CDATA[Carneiro]]></surname>
<given-names><![CDATA[DNM]]></given-names>
</name>
<name>
<surname><![CDATA[Felisberto]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Padovan]]></surname>
<given-names><![CDATA[MP.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Weed suppression by green manure in an agroecological systems.]]></article-title>
<source><![CDATA[Revista Ceres]]></source>
<year>2015</year>
<volume>62</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>546-52</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodrigues]]></surname>
<given-names><![CDATA[GB]]></given-names>
</name>
<name>
<surname><![CDATA[Sá]]></surname>
<given-names><![CDATA[MED]]></given-names>
</name>
<name>
<surname><![CDATA[Valério Filho]]></surname>
<given-names><![CDATA[WV]]></given-names>
</name>
<name>
<surname><![CDATA[Buzetti]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Bertolin]]></surname>
<given-names><![CDATA[DC]]></given-names>
</name>
<name>
<surname><![CDATA[Pina]]></surname>
<given-names><![CDATA[TP.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Matéria e nutrientes da parte aérea de adubos verdes em cultivos exclusivo e consorciado.]]></article-title>
<source><![CDATA[Revista Ceres]]></source>
<year>2012</year>
<volume>59</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>380-5</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Salazar]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
<name>
<surname><![CDATA[Hincapié]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arvenses de mayor interferencia en los cafetales.]]></article-title>
<source><![CDATA[Centro Nacional de Investigaciones de Café (Cenicafé)]]></source>
<year>2005</year>
<volume>333</volume>
<page-range>1-12</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Gamboa]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Control de malezas con herbicidas y métodos mecánicos en plantaciones jóvenes de café.]]></article-title>
<source><![CDATA[Bioagro]]></source>
<year>2004</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>133-6</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Segura]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Andrade]]></surname>
<given-names><![CDATA[HJ.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Huella de carbono en cadenas productivas de café (Coffea arabica L.) con diferentes estándares de certificación en Costa Rica.]]></article-title>
<source><![CDATA[Revista Luna Azul]]></source>
<year>2012</year>
<volume>35</volume>
<page-range>60-77</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Rodrigues]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bastos]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen fertilization of coffee: organic compost and Crotalaria juncea L.]]></article-title>
<source><![CDATA[Revista Ceres]]></source>
<year>2013</year>
<volume>60</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>842-51</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soares]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Vaz]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Lang]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[De Sá]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Produção de fitomassa e acúmulo de nutrientes por espécies utilizadas na adubão verde.]]></article-title>
<source><![CDATA[Revista Ceres]]></source>
<year>2014</year>
<volume>61</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>732-9</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Timossi]]></surname>
<given-names><![CDATA[PC]]></given-names>
</name>
<name>
<surname><![CDATA[Wisintainer]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[BJD]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[VA]]></given-names>
</name>
<name>
<surname><![CDATA[Porto]]></surname>
<given-names><![CDATA[VS.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Supressão de plantas daninhas e produção de sementes de Crotalária, em função de métodos de semeadura.]]></article-title>
<source><![CDATA[Pesquisa Agropecuária Tropical]]></source>
<year>2011</year>
<volume>41</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>525-30</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tripathi]]></surname>
<given-names><![CDATA[MK]]></given-names>
</name>
<name>
<surname><![CDATA[Chaudhary]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[SR]]></given-names>
</name>
<name>
<surname><![CDATA[Bh]]></surname>
<given-names><![CDATA[HR.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Growth and yield of Sunnhemp (Crotalaria juncea L.) as influenced by spacing and topping practices.]]></article-title>
<source><![CDATA[African journal of agricultural research]]></source>
<year>2013</year>
<volume>8</volume>
<numero>28</numero>
<issue>28</issue>
<page-range>3744-9</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uchino]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Iwama]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Jitsuyama]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Ichiyama]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Sugiura]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Yudate]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stable characteristics of cover crops for weed suppression in organic farming systems.]]></article-title>
<source><![CDATA[Plant Production Science]]></source>
<year>2011</year>
<volume>14</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>75-85</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Lai]]></surname>
<given-names><![CDATA[DYF]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Pan]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Zeng]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of rice straw incorporation on active soil organic carbon pools in a subtropical paddy field.]]></article-title>
<source><![CDATA[Soil and Tillage Research]]></source>
<year>2015</year>
<volume>152</volume>
<page-range>8-16</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
