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  <controlfield tag="003">BR-BrBNA</controlfield>
  <controlfield tag="005">20250904161610.0</controlfield>
  <controlfield tag="008">250904b2022    bl.mr|pooa||| 00| 0 eng |</controlfield>
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    <subfield code="a">BR-BrBNA</subfield>
    <subfield code="b">eng</subfield>
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    <subfield code="a">P35</subfield>
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    <subfield code="a">P33</subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Ribeiro, Bruno N. </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Coelho, Anderson P. </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Souza, Juscelio R. de </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Gissi, Luciano de </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Lemos, Leandro B. </subfield>
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  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Leaching and availability of potassium in soil affected by conventional and coated fertilizer sources</subfield>
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  <datafield tag="500" ind1=" " ind2=" ">
    <subfield code="a">Publica&#xE7;&#xE3;o on-line; 23 ref.; Sumaries (En, Pt) </subfield>
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ABSTRACT: The use of coated fertilizers is a strategy for improving fertilization efficiency and crop yield. However,  further studies are needed to understand the dynamics of different types of coated K fertilizers in the soil. The objective of this study was to evaluate K dynamics in soil columns after the application of conventional KCl and other K sources with coating (KCl-C) and compaction (KCl-CC) combined with the use of additives and polymers. The experiment comprised four treatments, consisting of three sources of K [conventional KCl, KCl coated with additives and polymers (KCl-C), and KCl compacted and coated with additives and polymers (KCl-CC)], and a control without K application, with four repetitions. The K concentration was evaluated in the leached solution collected from the soil columns for 28 days. After this period, the K concentration in the soil was determined. The absence of K fertilization in the soil led to a 26.5% reduction in the K concentration. The coated sources had lower granule hardness and higher K leaching than conventional KCl. The amounts of K leached were 62.2%, 68.5%, and 54.0% for KCl-CC, KCl-C, and conventional KCl, respectively. However, at the end of the experiment, the soil K concentration was higher under the KCl-C treatment.

Key words: potassium fertilizers, potassium fertilization, potassium chloride, polymers</subfield>
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  <datafield tag="520" ind1=" " ind2=" ">
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RESUMO: O uso de fertilizantes revestidos &#xE9; uma estrat&#xE9;gia para melhorar a efici&#xEA;ncia da aduba&#xE7;&#xE3;o e o rendimento das culturas. No entanto, s&#xE3;o necess&#xE1;rios estudos para entender a din&#xE2;mica no solo dos diferentes tipos de fertilizantes pot&#xE1;ssicos (K) revestidos. Objetivou-se avaliar a lixivia&#xE7;&#xE3;o, disponibilidade e recupera&#xE7;&#xE3;o de K em colunas de solo ap&#xF3;s aplica&#xE7;&#xE3;o de fonte convencional KCl e outras fontes de K com tecnologias de revestimento e compacta&#xE7;&#xE3;o. O experimento compreendeu quatro tratamentos, constitu&#xED;dos por tr&#xEA;s fontes de K (KCl convencional; KCl revestido com aditivos e pol&#xED;meros - KCl-C; e KCl compactado e revestido com aditivos e pol&#xED;meros - KCl-CC), e um controle sem aduba&#xE7;&#xE3;o, com quatro repeti&#xE7;&#xF5;es. Os teores de K foram avaliados na solu&#xE7;&#xE3;o lixiviada das colunas de solo por 28 dias. Ap&#xF3;s esse per&#xED;odo, foram determinados os teores de K no solo. A aus&#xEA;ncia de aduba&#xE7;&#xE3;o no solo levou a uma redu&#xE7;&#xE3;o de 26,5% nos teores de K. As fontes revestidas apresentaram menor dureza de gr&#xE2;nulos e maior lixivia&#xE7;&#xE3;o de K em rela&#xE7;&#xE3;o ao KCl convencional. A quantidade de K lixiviada foi de 62,2% para KCl-CC, 68,5% para KCl-C e 54,0% para KCl convencional. No entanto, ao final do experimento, os teores de K no solo foram maiores para a fonte KCl-C. 

Palavras-chave: fertilizantes pot&#xE1;ssicos, aduba&#xE7;&#xE3;o pot&#xE1;ssica, cloreto de pot&#xE1;ssio, pol&#xED;meros</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">AN&#xC1;LISE DO SOLO</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">ADUBA&#xC7;&#xC3;O</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">POT&#xC1;SSIO</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">LIXIVIA&#xC7;&#xC3;O</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">FERTILIDADE DO SOLO</subfield>
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  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">3534</subfield>
    <subfield code="9">317828</subfield>
    <subfield code="d">Campina Grande-PB Universidade Federal de Campina Grande. Centro de Ci&#xEA;ncias e Tecnologia 1997</subfield>
    <subfield code="o">2024-4547</subfield>
    <subfield code="t">Revista Brasileira de Engenharia Agr&#xED;cola e Ambiental (Brazil)</subfield>
    <subfield code="x">1415-4366</subfield>
    <subfield code="g">v. 26 (12) p. 924-929; (2022) </subfield>
    <subfield code="w">BR2025003562 </subfield>
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  <datafield tag="856" ind1=" " ind2=" ">
    <subfield code="u">https://www.scielo.br/j/rbeaa/a/54PdR4bqCY8gfdwWrbTPp7n/?format=pdf&amp;lang=en</subfield>
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    <subfield code="c">ANA</subfield>
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  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">337991</subfield>
    <subfield code="d">337991</subfield>
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