<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342016000701527</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Relaciones NO 3 - /aniones y K + /cationes en la solución nutritiva para el crecimiento de plántulas de tomate]]></article-title>
<article-title xml:lang="en"><![CDATA[Relations NO 3 - /anions and K + /cations in the nutrient solution for the growth of tomato seedlings]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Parra-Terraza]]></surname>
<given-names><![CDATA[Saúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Sinaloa Facultad de Agronomía Área de Suelos y Agua]]></institution>
<addr-line><![CDATA[Culiacán Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>11</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>11</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>7</numero>
<fpage>1527</fpage>
<lpage>1538</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000701527&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000701527&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000701527&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En Sinaloa, la producción de tomate en campo abierto y en agricultura protegida utiliza plántulas que se producen en invernadero. En la etapa previa al trasplante la nutrición es uno de los factores que afectan el crecimiento y el estado nutrimental de las plántulas, por lo que el objetivo de este estudio fue evaluar el efecto de tres relaciones NO3 -/aniones y tres de K+/cationes en la solución nutritiva, en el crecimiento, composición mineral y extracción nutrimental de plántulas de tomate cv. 3832. El diseño experimental fue completamente al azar con arreglo factorial de tratamientos 32 con cuatro repeticiones. A 40 días después de la siembra, se tomaron datos del crecimiento y se determinó la concentración de N, P, K, Ca y Mg en hojas y tallos y la extracción nutrimental. La interacción NO3 -/aniones x K+/cationes fue significativa para altura de plántula, diámetro y peso seco de tallo y afectó las concentraciones y las extracciones de N, P y K en tallos. La relación 80/100NO3 -/aniones aumento (p &#8804; 0.05) el peso seco, las concentraciones y extracciones de N y K en hojas, mientras que la relación porcentual 55/100 K+/cationes incrementó (p &#8804; 0.05) la concentración y extracción de K en hojas y redujo las de Mg. En la selección de plántulas de tomate para el trasplante se debe considerar el efecto de la interacción NO3-/aniones x K+/cationes sobre las variables altura, diámetro y peso seco de tallo, el estado nutrimental de las plántulas y las condiciones ambientales del área de producción.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In Sinaloa, tomato production in open field and in protected agriculture using seedlings produced in greenhouses. In the pre-transplant nutrition it is one of factors affecting growth and nutrient status of seedlings, so that the objective of this study was to evaluate the effect of three ratios NO3-/ anions and three K+/ cations in the nutrient solution on growth, mineral composition and nutrient extraction tomato seedlings cv. 3832. The experimental design was completely randomized factorial arrangement of treatments 32 with four replications. At 40 days after planting, growth data were taken and the concentration of N, P, K, Ca and Mg in leaves and stems and nutrient extraction was determined. The NO3-/anions x K+/cation interaction was significant for seedling height, stem diameter and dry weight and affected the concentrations and removals of N, P and K in stems. The relationship 80/100 NO3 -/anions increase (p &#8804; 0.05) dry weight, concentration and extraction of N and K in leaves, while the percentage ratio 55/100 K+/cations increased (p&#8804; 0.05) concentration and extracting sheet K and Mg reduced. In selecting tomato seedlings for transplantation should be considered the effect of NO3 -/anions x K+/cation interaction on the variables height, diameter and dry weight of stem, the nutritional status of seedlings and environmental conditions of the area of production.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Solanum lycopersicum L.]]></kwd>
<kwd lng="es"><![CDATA[crecimiento de plántulas]]></kwd>
<kwd lng="es"><![CDATA[relación porcentual NO3-/aniones]]></kwd>
<kwd lng="es"><![CDATA[relación porcentual K+/cationes]]></kwd>
<kwd lng="en"><![CDATA[Solanum lycopersicum L.]]></kwd>
<kwd lng="en"><![CDATA[percentage ratio K+/cations]]></kwd>
<kwd lng="en"><![CDATA[percentage ratio NO3 -/anions]]></kwd>
<kwd lng="en"><![CDATA[seedling growth]]></kwd>
</kwd-group>
</article-meta>
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