<?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>2007-2422</journal-id>
<journal-title><![CDATA[Tecnología y ciencias del agua]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnol. cienc. agua]]></abbrev-journal-title>
<issn>2007-2422</issn>
<publisher>
<publisher-name><![CDATA[Instituto Mexicano de Tecnología del Agua, Coordinación de Comunicación, Participación e Información]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-24222018000200175</article-id>
<article-id pub-id-type="doi">10.24850/j-tyca-2018-02-07</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores que afectan la producción agrícola bajo riego: cómo medirlos y estudiar su efecto]]></article-title>
<article-title xml:lang="en"><![CDATA[Factors that affect agricultural production under irrigation conditions: How to measure and study their effect]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa-Espinosa]]></surname>
<given-names><![CDATA[José L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacios-Vélez]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tijerina-Chávez]]></surname>
<given-names><![CDATA[Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Solorio]]></surname>
<given-names><![CDATA[Carlos A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Exebio-García]]></surname>
<given-names><![CDATA[Adolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Landeros-Sánchez]]></surname>
<given-names><![CDATA[Cesáreo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>2</numero>
<fpage>175</fpage>
<lpage>191</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-24222018000200175&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-24222018000200175&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-24222018000200175&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Hay varios grupos de factores que afectan el rendimiento de los cultivos agrícolas bajo riego; entre ellos destacan los meteorológicos, los de manejo y los relativos a la variabilidad espacial de los terrenos. Los primeros pueden afectar de forma seria los rendimientos y es poco lo que puede hacerse para aminorar su efecto. Los de manejo dependen en gran parte de las decisiones que tomen los productores y de los medios que disponen para realizar sus actividades. El tercer grupo, que depende de la variabilidad espacial de los terrenos, tiene un notable efecto para los productores que rentan tierras que han sido cultivadas por otros productores o que presentan variabilidad debido a condiciones físicas del suelo y la forma en que se han manejado. En el Distrito de Riego 038 de Río Mayo, en Sonora, México, se le ha dado el seguimiento a los cultivos durante varios años mediante sensores remotos satelitales y se han podido medir los efectos de estos factores, así como generar recomendaciones para aminorar los impactos negativos en los rendimientos. El objetivo de este trabajo es mostrar los resultados obtenidos y la manera de hacerlos del conocimiento de los productores, mediante un visor en Internet.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Several groups of factors affect the yield of agricultural crops under irrigation, including meteorological conditions, the management of crops and land, and those related to the soil&#8217;s spatial variability. The first group of factors can seriously affect crop yields and little can be done to lessen their effect. Management factors depend largely on decisions made by producers and available cultivation methods. The third group depends on the soil&#8217;s spatial variability, which has a notable negative effect on crop yield in general, but mainly in the case of producers who rent several plots that have been cultivated by other producers, which vary due to the soil&#8217;s physical conditions and the management practices used by former producers. In irrigation district &#8220;Río Mayo&#8221; in the state of Sonora, crops have been monitored for several years using remote satellite sensors, and it has been possible to measure the effects of these factors and generate recommendations to reduce the negative impacts on yields. The objective of this work is to show the results obtained and the way of making them known to the producers through available Internet viewers.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agricultura de precisión]]></kwd>
<kwd lng="es"><![CDATA[evapotranspiración]]></kwd>
<kwd lng="es"><![CDATA[índices de vegetación]]></kwd>
<kwd lng="es"><![CDATA[percepción remota]]></kwd>
<kwd lng="es"><![CDATA[variabilidad espacial]]></kwd>
<kwd lng="en"><![CDATA[Precision agriculture]]></kwd>
<kwd lng="en"><![CDATA[evapotranspiration]]></kwd>
<kwd lng="en"><![CDATA[vegetation indices]]></kwd>
<kwd lng="en"><![CDATA[remote sensing]]></kwd>
<kwd lng="en"><![CDATA[spatial variability]]></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[Calera]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Piqueras]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Parámetros biofísicos de la cubierta vegetal: relaciones operativas para obtención de mapas de estos parámetros desde las imágenes de satélite]]></source>
<year>2007</year>
<publisher-loc><![CDATA[Ciudad Real, España ]]></publisher-loc>
<publisher-name><![CDATA[Grupo de Teledetección, Universidad Castilla La Mancha]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Choudhry]]></surname>
<given-names><![CDATA[B. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[N. U.]]></given-names>
</name>
<name>
<surname><![CDATA[Idso]]></surname>
<given-names><![CDATA[S. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Reginato]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Daughtry]]></surname>
<given-names><![CDATA[C. S. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relations between evaporation coefficients and vegetation indices studied by model simulations]]></article-title>
<source><![CDATA[Remote Sensing of Enviroment]]></source>
<year>1994</year>
<volume>50</volume>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tecnologías para ofrecer servicios de asesoramiento en riegos]]></source>
<year>2013</year>
<publisher-loc><![CDATA[Montecillo, México ]]></publisher-loc>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Espinosa-Espinosa]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios-Vélez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Tijerina-Chávez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-Magdaleno]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Quevedo-Nolasco]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sistema de monitoreo satelital para el seguimiento y desarrollo de cultivos del Distrito de Riego 038]]></article-title>
<source><![CDATA[Tecnología y Ciencias del Agua]]></source>
<year>2017</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>95-104</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lanier]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Brandt]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Using growing degree days to predict plant stages.pdf. Bozeman]]></source>
<year>2001</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Montana State University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Palacios]]></surname>
<given-names><![CDATA[E. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios]]></surname>
<given-names><![CDATA[L. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Earth Observation as a Support to Impruve Water Use in Irrigated Agriculture]]></article-title>
<source><![CDATA[Journal of Agriculture Science and Technology]]></source>
<year>2010</year>
<volume>4</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rock]]></surname>
<given-names><![CDATA[B. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Vugelmann]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[D. L. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Voglemann]]></surname>
<given-names><![CDATA[A. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoshizaki]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote detection of forest damage. Bioscience]]></source>
<year>1986</year>
<volume>36</volume>
<page-range>439</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rouse]]></surname>
<given-names><![CDATA[J. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hass]]></surname>
<given-names><![CDATA[R. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Schell]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Deering]]></surname>
<given-names><![CDATA[D. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monitoring vegetation systems in great plains with ERTS]]></article-title>
<source><![CDATA[Proceedings]]></source>
<year>1974</year>
<page-range>3010-317</page-range><publisher-loc><![CDATA[Third Earth Resources Technology Satellite Symposium, Greenbelt ]]></publisher-loc>
<publisher-name><![CDATA[NASA SP-351]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sakthvadivel]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Thiruvengadachari]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Amerasinge]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Bastiaanssen]]></surname>
<given-names><![CDATA[W. G. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Molden]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Performance evaluation of Bhakra Irrigation System, India, using remote sensing and GIS techniques]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Colombo, Sri Lanka ]]></publisher-loc>
<publisher-name><![CDATA[International Water Management Institute]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
