<?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>2305-0683</journal-id>
<journal-title><![CDATA[Investigación Agraria]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. Agrar.]]></abbrev-journal-title>
<issn>2305-0683</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, UNA.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2305-06832024000100001</article-id>
<article-id pub-id-type="doi">10.18004/investig.agrar.2024.junio.2601795</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Produtividade de silagem e grãos de milho em sucessão a plantas de cobertura de inverno]]></article-title>
<article-title xml:lang="en"><![CDATA[Silage and corn grain productivity in succession to winter cover crops]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerra]]></surname>
<given-names><![CDATA[Divanilde]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Braun]]></surname>
<given-names><![CDATA[Vinicius Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Redin]]></surname>
<given-names><![CDATA[Marciel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maisa da Silva]]></surname>
<given-names><![CDATA[Danni]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lorensi de Souza]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gehlen Bohrer]]></surname>
<given-names><![CDATA[Robson Evaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lanzanova]]></surname>
<given-names><![CDATA[Mastrangello Enivar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Estadual do Rio Grande do Sul  ]]></institution>
<addr-line><![CDATA[ Rio Grande do Sul]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<fpage>1</fpage>
<lpage>6</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2305-06832024000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2305-06832024000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2305-06832024000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO O milho é uma cultura de grande importância e com demanda crescente, mas que precisa de grande quantidade de insumos. Por isso, plantas de cobertura antecedendo a cultura estão sendo avaliadas a fim de reduzir a necessidade de uso de adubos químicos. O objetivo do presente estudo foi avaliar o efeito de diferentes combinações e proporções de sementes de plantas de cobertura na produtividade de silagem e grãos de milho. Os tratamentos implantados foram: T1- pousio; T2- Aveia preta-100%; T3- Ervilhaca-100%; T4- 90% ervilhaca + 10% Aveia preta; T5- 75% Ervilhaca + 25% Aveia preta e T6- 50% Ervilhaca + 50% Aveia preta, em delineamento experimental de blocos ao acaso com três repetições. Em todos os tratamentos foram avaliadas a massa verde e seca das plantas de cobertura, além da produtividade de silagem e grãos do milho cultivado na sequência. Como resultados, observou-se que o T2 (100% aveia) apresentou a maior quantidade de massa verde e seca com valores de 31.366 kg ha-1 e 5.420 kg ha-1, respectivamente. Com relação a produtividade de milho silagem, os tratamentos antecessores com ervilhaca (T3-100%) e a combinação de 90% ervilhaca + 10% aveia preta (T4) e de 75% ervilhaca + 25% aveia preta (T5), apresentaram os melhores resultados, com produtividade de 62.775 kg ha-1; 62.451 kg ha-1; e 61.751 kg ha-1, respectivamente. Esses tratamentos também resultaram em maior produtividade de grãos de milho, com valores de 13.860 kg ha-1; 13.720 kg ha-1; e 13.650 kg ha-1, respectivamente. Portanto, a aveia solteira como planta de cobertura apresentou a melhor produção de massa verde e seca, porém não incrementou na produtividade de silagem e de grãos de milho. No entanto, o cultivo da ervilhaca solteira (100%) ou em consórcio (90% e 75%) com aveia preta resultou em maior produtividade de silagem e grãos de milho.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Corn is a crop of great importance and with a growing demand, but it requires a large amount of inputs. Therefore, cover crops preceding the corn crop are being evaluated in order to reduce the need for the use of chemical fertilizers. The objective of the present study was to evaluate the effect of different combinations and proportions of cover crop seeds on the productivity of silage and corn grains. The treatments implemented were: T1 - fallow; T2- Black oats-100%; T3- Vetch-100%; T4- 90% vetch + 10% black oats; T5- 75% Vetch + 25% Black oats and T6- 50% Vetch + 50% Black oats, in a randomized block experimental design with three replications. In all treatments, the green and dry mass of the cover crops were evaluated, in addition to the silage and grain productivity of the corn cultivated in the sequence. As a result, it was observed that T2 (100% oat) presented the highest amount of green and dry mass with values &#8203;&#8203;of 31,366 kg ha-11 and 5,420 kg ha-1, respectively. Regarding corn silage productivity, the predecessor treatments with vetch (T3 - 100%) and the combination of 90% vetch + 10% black oat (T4) and 75% vetch + 25% black oat (T5), presented the best results, with productivity of 62,775 kg ha-1; 62,451 kg ha-1; and 61,751 kg ha-1, respectively. These treatments also resulted in higher corn grain productivity, with values &#8203;&#8203;of 13,860 kg ha-1; 13,720 kg ha-1; and 13,650 kg ha-1, respectively. Therefore, single oats as a cover crop showed the best production of green and dry mass, but did not increase the productivity of silage and corn grains. However, the cultivation of single vetch (100%) or in intercropping (90% and 75%) with black oats resulted in greater productivity of silage and corn grains.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Aveia preta]]></kwd>
<kwd lng="pt"><![CDATA[ervilhaca]]></kwd>
<kwd lng="pt"><![CDATA[cultivo solteiro]]></kwd>
<kwd lng="pt"><![CDATA[consórcio]]></kwd>
<kwd lng="en"><![CDATA[Black oat]]></kwd>
<kwd lng="en"><![CDATA[vetch]]></kwd>
<kwd lng="en"><![CDATA[single crop]]></kwd>
<kwd lng="en"><![CDATA[intercropping]]></kwd>
</kwd-group>
</article-meta>
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