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  <titleInfo>
    <title>Efficiency and quality of soil sampling according to a sampling tool</title>
  </titleInfo>
  <name type="personal">
    <namePart>Nicoletti, João V. M.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Franchi, Marcello R. A.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Motomiya, Anamari V. de A.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Motomiya, Wagner R.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Molin, José P.</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
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  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
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  <abstract>

ABSTRACT: Soil sampling is a fundamental stage for recommending agricultural correctives and fertilizers, estimating the nutritional demands of plants, and consequently maximizing productivity. Therefore, this study aimed to assess the performance of three soil samplers in different management systems in terms of sample quality and operational efficiency. A completely randomized experimental design was used in a factorial scheme. Three samplers and two sampling depths (3 × 2) were used with four replicates. At each sampling location, eight single samples were taken at a varying sampling depth of 0.0-0.2 and 0.2-0.4 m, and the collection time was recorded. Samples were analyzed for chemical attributes and granulometry. Statistically significant differences were observed for specific attributes (organic matter, K, Ca, CEC, pH, and S). In terms of operational efficiency, the hydraulic sampler was more efficient than the other samplers, being three times faster than the combustion drill and six times faster than the manual probe. Thus, it is suitable and reliable for soil sampling purposes.

Key words: precision agriculture, soil sampling, automation</abstract>
  <abstract>

RESUMO: A amostragem de solo é uma etapa fundamental para a recomendação de corretivos e fertilizantes agrícolas, estimar demanda nutricional de plantas e consequentemente maximizar a produtividade. Por conseguinte, o objetivo deste estudo foi avaliar o desempenho de três amostradores de solo em áreas de diferentes sistemas de manejo no contexto de qualidade da amostra e eficiência operacional. Utilizou-se o delineamento experimental inteiramente casualizado em esquema fatorial 3 × 2 (três amostradores e duas profundidades de amostragem), com quatro repetições. Em cada ponto amostral, foram retiradas oito amostras simples em profundidade variável de coleta de 0,0-0,2 e 0,2-0,4 m, cronometrando-se o tempo de coleta. Foram avaliados atributos químicos e granulometria dos solos. Foram observadas diferenças estatísticas para atributos específicos (matéria orgânica, K, Ca, CEC, pH e S). Em termos de eficiência operacional, o amostrador hidráulico superou os demais amostradores, sendo três vezes mais rápido em comparação com o sistema a combustão e seis vezes em comparação com a sonda manual; sendo assim apto e recomendável para as operações de coleta de solo.

Palavras-chave: agricultura de precisão, amostragem de solo, automação</abstract>
  <note>Publicação on-line; 25 ref.; 10 tables; Sumaries (En, Pt)</note>
  <subject>
    <topic>AGRICULTURA DE PRECISÃO</topic>
  </subject>
  <subject>
    <topic>SOLO</topic>
  </subject>
  <subject>
    <topic>AMOSTRAGEM</topic>
  </subject>
  <subject>
    <topic>AUTOMAÇÃO</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>2024-4553</identifier>
    <identifier type="issn">1415-4366</identifier>
    <identifier type="local">BR2025003396</identifier>
    <part>
      <text>v. 27 (6) p. 480-486; (2023)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/rbeaa/a/YFGsxtF7MNBKNrBZcRVjQFL/?format=pdf&amp;lang=en</identifier>
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    <url>https://www.scielo.br/j/rbeaa/a/YFGsxtF7MNBKNrBZcRVjQFL/?format=pdf&amp;lang=en</url>
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    <recordContentSource authority="marcorg">BR-BrBNA</recordContentSource>
    <recordCreationDate encoding="marc">250701</recordCreationDate>
    <recordChangeDate encoding="iso8601">20250701194132.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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