<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-0705</journal-id>
<journal-title><![CDATA[Nova scientia]]></journal-title>
<abbrev-journal-title><![CDATA[Nova scientia]]></abbrev-journal-title>
<issn>2007-0705</issn>
<publisher>
<publisher-name><![CDATA[Universidad de La Salle Bajío A. C., Coordinación de Investigación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-07052019000100124</article-id>
<article-id pub-id-type="doi">10.21640/ns.v11i22.1709</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Disponibilidad de nitrógeno usando dos tipos de estiércol de bovino lechero en cultivos de maíz forrajero y triticale]]></article-title>
<article-title xml:lang="en"><![CDATA[Availability of nitrogen using two types of dairy cattle manure in forage corn and triticale]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Galindo]]></surname>
<given-names><![CDATA[Olivia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa Viramontes]]></surname>
<given-names><![CDATA[Uriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cueto Wong]]></surname>
<given-names><![CDATA[José A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez Hernández]]></surname>
<given-names><![CDATA[Gregorio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallegos Robles]]></surname>
<given-names><![CDATA[Miguel Á.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Martínez]]></surname>
<given-names><![CDATA[José D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Agricultura y Zootecnia ]]></institution>
<addr-line><![CDATA[Gómez Palacio Durango]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Matamoros Coahuila]]></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>11</volume>
<numero>22</numero>
<fpage>124</fpage>
<lpage>141</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-07052019000100124&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-07052019000100124&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-07052019000100124&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  La Comarca Lagunera, ubicada en los estados de Coahuila y Durango, México, es la región con la mayor producción de leche en el país. En esta región son comunes las explotaciones lecheras con áreas agrícolas para la producción de cultivos forrajeros, donde se aplican dosis excesivas de estiércol y se han reportado problemas de contaminación del agua por nitratos; por lo tanto, es importante generar información sobre el nitrógeno disponible del estiércol (NDE) en un sistema de dos cosechas por año.  Método:  Se realizó un estudio con dosis crecientes de nitrógeno (N), en función del requerimiento de N del cultivo (RNC), utilizando urea, estiércol de corral (EC) y estiércol del separador de sólidos (ESS) como fuentes de N, en cultivos de maíz forrajero en primavera-verano y triticale en otoño-invierno. Se evaluó el rendimiento de los cultivos y el NDE en ambos tipos de estiércol.  Resultados:  El rendimiento de materia seca de maíz fue similar en todos los tratamientos, de 13.9 a 15.5 t&#8729;ha-1, excepto en la dosis de 133% RNC con ESS, que tuvo el rendimiento más bajo. En triticale, las diferencias en rendimiento fueron no significativas. En maíz, la dosis de 428.6 kg&#8729;ha-1 de N total con EC y de 449.6 kg&#8729;ha-1 de N total con ESS, tuvieron la misma extracción de N (Nex) de 141.2 kg&#8729;ha-1, equivalente a la dosis de 185 kg&#8729;ha-1 de N con urea, que corresponde al 100% del RNC. Lo anterior indica una disponibilidad de N de 43.2% en EC y 41.1% en ESS. En el ciclo de invierno, el N disponible fue de 19.5% y 11.1% en EC y ESS, respectivamente.  Conclusión:  El N disponible de ambos tipos de estiércol, EC y ESS, abasteció de manera suficiente a dos cultivos forrajeros. Los valores de NDE fueron similares en ambos tipos de estiércol cuando se estimó en ciclo de primavera-verano, pero en otoño-invierno el NDE fue mayor en el estiércol de corral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  The Comarca Lagunera, located in the states of Coahuila and Durango, Mexico, is the region with the highest milk production in the country. In this region, dairy farms with agricultural areas for the production of forage crops are common, where excessive rates of manure are applied to the soil and nitrate contamination of groundwater has been reported; therefore, it is important to generate information on the manure available nitrogen (MAN) in a system of two crops per year.  Method:  A study was conducted with increasing doses of nitrogen (N), depending on the crop N requirement (CNR), using urea, corral manure (CM) and manure from the solid separator (SSM) as sources of N, in silage corn in spring and triticale in winter. The yield of the crops and the availability of N in both types of manure were evaluated.  Results:  Silage corn dry matter yield was similar in all treatments, from 13.9 to 15.5 t&#8729;ha-1, except in the 133% CNR with SSM, which had the lowest yield. In triticale, the differences in yield were not significant. In corn, the dose of 428.6 kg&#8729;ha-1 of total N with CM and 449.6 kg&#8729;ha-1 of total N with SSM, had the same extraction of N (Nex) of 141.2 kg&#8729;ha-1, equivalent to 185 kg&#8729;ha-1 of N with urea fertilizer, which corresponds to 100% of the CNR. The above indicates an availability of N of 43.2% in CM and 41.1% in SSM. In the winter season, available N was 19.5% and 11.1% in CM and SSM, respectively.  Conclusion:  Available N from both types of manure provided enough of this nutrient for two forage crops. Values of available N were similar in both types of manure when estimated in the spring-summer season, but in autumn-winter the MAN was higher in the CM.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Zea mays]]></kwd>
<kwd lng="es"><![CDATA[x Triticosecale]]></kwd>
<kwd lng="es"><![CDATA[equivalencia de fertilizante]]></kwd>
<kwd lng="es"><![CDATA[extracción de nitrógeno]]></kwd>
<kwd lng="es"><![CDATA[separador de sólidos]]></kwd>
<kwd lng="en"><![CDATA[Zea mays]]></kwd>
<kwd lng="en"><![CDATA[x Triticosecale]]></kwd>
<kwd lng="en"><![CDATA[fertilizer equivalence]]></kwd>
<kwd lng="en"><![CDATA[nitrogen extraction]]></kwd>
<kwd lng="en"><![CDATA[solids separator]]></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]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hurtado]]></surname>
<given-names><![CDATA[A. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Arango]]></surname>
<given-names><![CDATA[O. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[D. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Salazar]]></surname>
<given-names><![CDATA[C. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de abonos orgánicos a partir de subproductos del fique en la producción de maíz]]></article-title>
<source><![CDATA[Biotecnología en el Sector Agropecuario y Agroindustrial]]></source>
<year>2013</year>
<volume>11</volume>
<page-range>94-102</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[S. M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[F. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Pinos]]></surname>
<given-names><![CDATA[R. J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[L. J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[R. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Abonos obtenidos del compostado de heces de ganado bovino de leche vs fertilizante en la producción de triticale (X Triticum secale Wittmack)]]></article-title>
<source><![CDATA[Revista de la Facultad de Ciencias Agrarias]]></source>
<year>2017</year>
<volume>49</volume>
<page-range>95-104</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Butler]]></surname>
<given-names><![CDATA[T.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[K.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Muir]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Weindorf]]></surname>
<given-names><![CDATA[D.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lastly]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dairy manure compost effects on corn silage production and soil properties]]></article-title>
<source><![CDATA[Agronomy Journal]]></source>
<year>2008</year>
<volume>100</volume>
<page-range>1541-5</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eghball]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Power]]></surname>
<given-names><![CDATA[J.F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phosphorus- and nitrogen-based manure and compost applications: corn production and soil phosphorus]]></article-title>
<source><![CDATA[Soil Sci. Soc. Am. J.]]></source>
<year>1999</year>
<volume>63</volume>
<page-range>895-901</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Figueroa-Viramontes]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Cueto-Wong]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Núñez-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Reta-Sánchez]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroga-Garza]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Faz-Contreras]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Márquez-Rojas]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estiércol de bovino lechero sobre el rendimiento y recuperación aparente de nitrógeno en maíz forrajero]]></article-title>
<source><![CDATA[Terra Latinoamericana]]></source>
<year>2010</year>
<volume>28</volume>
<page-range>361-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Figueroa-Viramontes]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Núñez-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cueto-Wong]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-Márquez]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimación de la producción de estiércol y de la excreción de nitrógeno, fósforo y potasio por bovino lechero en la Comarca Lagunera, México]]></article-title>
<source><![CDATA[Agricultura Orgánica]]></source>
<year>2009</year>
<publisher-name><![CDATA[FAZ-UJED. SMCS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Figueroa-Viramontes]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Núñez-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Reta-Sánchez]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-López]]></surname>
<given-names><![CDATA[H.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Balance regional de nitrógeno en el sistema de producción leche-forraje de la Comarca Lagunera, México]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Pecuarias]]></source>
<year>2015</year>
<volume>6</volume>
<page-range>377-92</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fortis-Hernández]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Leos-Rodríguez]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Orona-Castillo]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Hernández]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Salazar-Sosa]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Preciado-Rangel]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Arnaldo-Orozco]]></surname>
<given-names><![CDATA[V.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura-Castruita]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Uso de estiércol bovino en la Comarca Lagunera]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Orona C.]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Salazar S.]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Fortis H.]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Agricultura Orgánica]]></source>
<year>2009</year>
<edition>2</edition>
<page-range>105-28</page-range><publisher-loc><![CDATA[Gómez Palacio, Dgo. ]]></publisher-loc>
<publisher-name><![CDATA[FAZ-UJED. SMCS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gale]]></surname>
<given-names><![CDATA[E.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sullivan]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cogger]]></surname>
<given-names><![CDATA[C.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Bary]]></surname>
<given-names><![CDATA[A.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Hemphill]]></surname>
<given-names><![CDATA[D.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Myhre]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimating Plant-Available Nitrogen Release from Manures, Composts, and Specialty Products]]></article-title>
<source><![CDATA[J. Environ. Qual.]]></source>
<year>2006</year>
<volume>35</volume>
<page-range>2321-32</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jones]]></surname>
<given-names><![CDATA[J.B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Laboratory guide for conducting soil tests and plant analysis]]></source>
<year>2001</year>
<publisher-loc><![CDATA[New York, NY, USA ]]></publisher-loc>
<publisher-name><![CDATA[CRC Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lithourgidis]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Matsi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Barbayiannis]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Dordas]]></surname>
<given-names><![CDATA[C.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of liquid cattle manure on corn yield, composition, and soil properties]]></article-title>
<source><![CDATA[Agron. J.]]></source>
<year>2007</year>
<volume>99</volume>
<page-range>1041-7</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lithourgidis]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Vasilakoglou]]></surname>
<given-names><![CDATA[I.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Dhima]]></surname>
<given-names><![CDATA[K.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Dordas]]></surname>
<given-names><![CDATA[C.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Yiakoulaki]]></surname>
<given-names><![CDATA[M.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Forage yield and quality of common vetch mixtures with oat and triticale in two seeding ratios]]></article-title>
<source><![CDATA[Field Crops Research]]></source>
<year>2006</year>
<volume>99</volume>
<page-range>106-13</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Calderón]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Figueroa-Viramontes]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Fortis-Hernández]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Núñez-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ochoa-Martínez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez-Duarte]]></surname>
<given-names><![CDATA[J.I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de dosis equivalentes de fertilizante y estiércol en la producción de maíz forrajero (Zea mays)]]></article-title>
<source><![CDATA[Revista Internacional de Botánica Experimental (Phyton)]]></source>
<year>2015</year>
<volume>84</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>8-13</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[B. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dwyer]]></surname>
<given-names><![CDATA[L.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gregorich]]></surname>
<given-names><![CDATA[E.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil nitrogen amendment effects on nitrogen uptake and grain yield of maize]]></article-title>
<source><![CDATA[Agronomy Journal]]></source>
<year>1999</year>
<volume>91</volume>
<page-range>650-6</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Márquez]]></surname>
<given-names><![CDATA[R.J.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimación de la mineralización de nitrógeno en estiércol de bovino lechero y producción de cultivos forrajeros]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Torreón, Coahuila ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma Agraria Antonio Narro]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Motavalli]]></surname>
<given-names><![CDATA[P.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Kelling]]></surname>
<given-names><![CDATA[K.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Converse]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[First-year nutrient availability from injected dairy manure]]></article-title>
<source><![CDATA[Journal of Environmental Quality]]></source>
<year>1989</year>
<volume>18</volume>
<page-range>180-5</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[G.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Kelling]]></surname>
<given-names><![CDATA[K.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Powell]]></surname>
<given-names><![CDATA[J.M]]></given-names>
</name>
<name>
<surname><![CDATA[Speth]]></surname>
<given-names><![CDATA[P.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of estimates of first-year dairy manure nitrogen availability or recovery using nitrogen-15 and other techniques]]></article-title>
<source><![CDATA[Journal of Environmental Quality]]></source>
<year>2004</year>
<volume>33</volume>
<page-range>719-27</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nennich]]></surname>
<given-names><![CDATA[T.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Harrison]]></surname>
<given-names><![CDATA[J.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Wieringen]]></surname>
<given-names><![CDATA[L.M. Van]]></given-names>
</name>
<name>
<surname><![CDATA[Meyer]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Heinrichs]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
<name>
<surname><![CDATA[W.P.]]></surname>
<given-names><![CDATA[Weiss]]></given-names>
</name>
<name>
<surname><![CDATA[N.R.]]></surname>
<given-names><![CDATA[St-Pierre]]></given-names>
</name>
<name>
<surname><![CDATA[R.L.]]></surname>
<given-names><![CDATA[Kincaid]]></given-names>
</name>
<name>
<surname><![CDATA[D.L.]]></surname>
<given-names><![CDATA[Davidson]]></given-names>
</name>
<name>
<surname><![CDATA[Block]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prediction of manure and nutrient excretion dairy cattle]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2005</year>
<volume>88</volume>
<page-range>3721-33</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="">
<collab>NRCS</collab>
<article-title xml:lang=""><![CDATA[Natural Resources Conservation Service, USDA]]></article-title>
<source><![CDATA[Agricultural Waste Management Field Handbook]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peralta]]></surname>
<given-names><![CDATA[V. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Juscamaita]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Meza]]></surname>
<given-names><![CDATA[C. V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Obtención y caracterización de abono orgánico líquido a través del tratamiento de excretas del ganado vacuno de un establo lechero usando un consorcio microbiano ácido láctico]]></article-title>
<source><![CDATA[Ecología Aplicada]]></source>
<year>2016</year>
<volume>15</volume>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="">
<collab>SAGARPA</collab>
<source><![CDATA[Secretaría de Agricultura y Ganadería, Desarrollo Rural, Pesca y Alimentación. Atlas Agroalimentario 2017]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="">
<collab>SAS Institute</collab>
<source><![CDATA[SAS]]></source>
<year>2009</year>
<publisher-loc><![CDATA[Cary, NC ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<collab>SEMARNAT</collab>
<source><![CDATA[Norma Oficial Mexicana que establece las especificaciones de fertilidad, salinidad y clasificación de suelos, estudio, muestreo y análisis]]></source>
<year>2000</year>
<publisher-name><![CDATA[Secretaría de Medio Ambiente y Recursos Naturales]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="">
<collab>SIAP</collab>
<source><![CDATA[Servicio de información agroalimentaria y pesquera. Estadística de producción agrícola. Datos abiertos]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Webb]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sorensen]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Velthof]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Amon]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodhe]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Salomon]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Hutchings]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Burczyk]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Reid]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An assessment of the variation of manure nitrogen efficiency throughout Europe and an appraisal of means to increase manure-N efficiency]]></article-title>
<source><![CDATA[Advances in Agronomy]]></source>
<year>2013</year>
<volume>119</volume>
<page-range>371-442</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
