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  <titleInfo>
    <title>Leaching and availability of potassium in soil affected by conventional and coated fertilizer sources</title>
  </titleInfo>
  <name type="personal">
    <namePart>Ribeiro, Bruno N.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Coelho, Anderson P.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Souza, Juscelio R. de</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Gissi, Luciano de</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Lemos, Leandro B.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <typeOfResource>text</typeOfResource>
  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
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  <abstract>

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</abstract>
  <abstract>

RESUMO: O uso de fertilizantes revestidos é uma estratégia para melhorar a eficiência da adubação e o rendimento das culturas. No entanto, são necessários estudos para entender a dinâmica no solo dos diferentes tipos de fertilizantes potássicos (K) revestidos. Objetivou-se avaliar a lixiviação, disponibilidade e recuperação de K em colunas de solo após aplicação de fonte convencional KCl e outras fontes de K com tecnologias de revestimento e compactação. O experimento compreendeu quatro tratamentos, constituídos por três fontes de K (KCl convencional; KCl revestido com aditivos e polímeros - KCl-C; e KCl compactado e revestido com aditivos e polímeros - KCl-CC), e um controle sem adubação, com quatro repetições. Os teores de K foram avaliados na solução lixiviada das colunas de solo por 28 dias. Após esse período, foram determinados os teores de K no solo. A ausência de adubação no solo levou a uma redução de 26,5% nos teores de K. As fontes revestidas apresentaram menor dureza de grânulos e maior lixiviação de K em relação 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 potássicos, adubação potássica, cloreto de potássio, polímeros</abstract>
  <note>Publicação on-line; 23 ref.; Sumaries (En, Pt) </note>
  <subject>
    <topic>ANÁLISE DO SOLO</topic>
  </subject>
  <subject>
    <topic>ADUBAÇÃO</topic>
  </subject>
  <subject>
    <topic>POTÁSSIO</topic>
  </subject>
  <subject>
    <topic>LIXIVIAÇÃO</topic>
  </subject>
  <subject>
    <topic>FERTILIDADE DO SOLO</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Revista Brasileira de Engenharia Agrícola e Ambiental (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Campina Grande-PB Universidade Federal de Campina Grande. Centro de Ciências e Tecnologia 1997</publisher>
    </originInfo>
    <identifier>2024-4547</identifier>
    <identifier type="issn">1415-4366</identifier>
    <identifier type="local">BR2025003562 </identifier>
    <part>
      <text>v. 26 (12) p. 924-929; (2022) </text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/rbeaa/a/54PdR4bqCY8gfdwWrbTPp7n/?format=pdf&amp;lang=en</identifier>
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    <url>https://www.scielo.br/j/rbeaa/a/54PdR4bqCY8gfdwWrbTPp7n/?format=pdf&amp;lang=en</url>
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    <recordContentSource authority="marcorg">BR-BrBNA</recordContentSource>
    <recordCreationDate encoding="marc">250904</recordCreationDate>
    <recordChangeDate encoding="iso8601">20250904161610.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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