<?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>2071-0054</journal-id>
<journal-title><![CDATA[Revista Ciencias Técnicas Agropecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cie Téc Agr]]></abbrev-journal-title>
<issn>2071-0054</issn>
<publisher>
<publisher-name><![CDATA[Universidad Agraria de La Habana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2071-00542020000200042</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Quality of Agricultural Soils in the Interior Bay of Puno, Peru-2018]]></article-title>
<article-title xml:lang="es"><![CDATA[Calidad de los suelos agrícolas en la bahía interior de Puno, Perú-2018]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Andrade Linarez]]></surname>
<given-names><![CDATA[Katia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo Coaquira]]></surname>
<given-names><![CDATA[Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rossel Bernedo]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Privada San Carlos  ]]></institution>
<addr-line><![CDATA[Puno ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional del Altiplano  ]]></institution>
<addr-line><![CDATA[Puno ]]></addr-line>
<country>Peru</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>29</volume>
<numero>2</numero>
<fpage>42</fpage>
<lpage>52</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2071-00542020000200042&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2071-00542020000200042&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2071-00542020000200042&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The present research paper determined the quality of agricultural soils in the inner Bay of Puno from Chulluni to the north to Chimu to the south. The study was performed in 8 sampling points with six repetitions each, during the months from August to October. The methods applied were Bouyoucos hydrometric, potentiometric and conductimetric. To determine organic matter the Walkley and Black method was used. For the determination of N, P and K, colorimetric test methods were used. Mehlich extraction method was used for nitrates and phosphorus and the turbidity method for potassium. To evaluate biological parameters, the population counting method was utilized, using entomological tweezers and direct observation for the case of macrofauna. The results showed that the physical and chemical parameters remained closely related. That demonstrates that the soils are in optimal condition. Phosphorus presented 36.8 mg/kg at all points, nitrate presented 0.552% in point 1, potassium presented 117.76 mg/kg at point 3 and organic matter presented 3.80% in point 4. Biological parameters corroborated the above with the number and variety of species of individuals. The studied soils still maintain appropriate characteristics with a moderate quality and fertility, although with high values of nitrates that must be controlled to guarantee the success in future plantations, and an evident anthropogenic contamination that is observed in situ that must be controlled.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el presente trabajo de investigación se determinó la calidad de suelos agrícolas de la bahía interior de Puno que comprende desde Chulluni al norte hasta Chimu al sur, se trabajó con 8 puntos de muestreo con seis repeticiones en cada uno, durante los meses de agosto a octubre, los métodos aplicados fueron el hidrómetro de Bouyoucos, potenciométrico y conductimétrico, para la determinación de materia orgánica se trabajó con el método de Walkley y Black. Para la determinación de N, P y K se utilizaron los métodos de ensayo colorimétrico, basados en la extracción Mehlich para el caso de nitratos y fósforo y el método de la turbidez para el potasio. Para evaluar los parámetros biológicos se utilizó el método de conteo de organismos utilizando pinzas entomológicas y de observación directa para el caso de macrofauna. Los resultados demostraron que los parámetros físicos y químicos mantuvieron estrecha relación demostrando que los suelos se encuentran en condiciones óptimas, el fósforo presentó 36.8 mg/kg en todos los puntos, el nitrato presentó 0,552% en el punto 1, el potasio presentó 117.76 mg/kg en el punto 3, la materia orgánica presentó 3.80% en el punto 4; los parámetros biológicos corroboraron lo anterior con el número y variedad de especies de los individuos. Los suelos estudiados aún mantienen características apropiadas con una moderada calidad y fertilidad, aunque con valores altos de Nitratos que deben ser controlados para garantizar el éxito en futuras siembras, y una evidente contaminación antropogénica que se observa in situ que debe ser controlada.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Parameters]]></kwd>
<kwd lng="en"><![CDATA[macrofauna]]></kwd>
<kwd lng="en"><![CDATA[physical-chemical]]></kwd>
<kwd lng="en"><![CDATA[biological]]></kwd>
<kwd lng="es"><![CDATA[índices]]></kwd>
<kwd lng="es"><![CDATA[macrofauna]]></kwd>
<kwd lng="es"><![CDATA[físico-químicos]]></kwd>
<kwd lng="es"><![CDATA[biológicos]]></kwd>
</kwd-group>
</article-meta>
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