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  <titleInfo>
    <title>Energy demand of a mechanized unit for the implementation of common bean crops</title>
  </titleInfo>
  <name type="personal">
    <namePart>Orlando Junior, Wilson de A.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Fernandes, Haroldo C.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Forastiere, Paulo R.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Guazzelli, Tiago M.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Araújo, Guilherme de M.</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
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  <abstract>

ABSTRACT: Adequate soil managements and use of agricultural machinery are essential for the economic viability of these practices and for the environmental preservation. In this context, sowing and fertilizer application practices are the most important activities, since they affect crop development and present high energy demand. Therefore, the objective of this study was to evaluate the energy demand of a tractor-planter-fertilizer unit for the sowing of common bean seeds in no-tillage system as a function of three soil water contents (28.7, 36.4, and 47.6%) and three soil fertilizer placement depths (0.06; 0.11 and 0.15 m). The final common bean grain yield was also evaluated. The lowest energy demand was found for the highest soil water content combined with the lowest soil fertilizer placement depth. The highest common bean grain yield was found for plants under soil water content of 36.4% and fertilizer placement depth of 0.11 m, reaching 4,186 kg ha-1. 

Key words: Phaseolus vulgaris, water content, fertilizer placement depth, no-tillage system</abstract>
  <abstract>

RESUMO: O manejo do solo e o uso adequado do maquinário agrícola são cruciais tanto para a viabilidade econômica da operação quanto para o meio ambiente. Nesse contexto, a operação de semeadura-adubação se torna uma das atividades mais críticas, devido sua importância para o desenvolvimento da cultura e alta demanda energética. Desta forma, o presente estudo objetivou avaliar a demanda energética de um conjunto trator-semeadora-adubadora na semeadura de feijão em sistema de plantio direto na palha em função de três teores de água no solo (28,7; 36,4 e 47,6%) e de três profundidades de deposição do adubo (0,06; 0,11 e 0,15 m). A produtividade final do feijoeiro semeado foi avaliada. A menor demanda energética ocorreu no maior teor de água do solo e na menor profundidade de deposição do adubo. A maior produtividade do feijoeiro ocorreu no teor de água do solo de 36,4% e profundidade de deposição do adubo de 0,11 m, alcançando o valor de 4186 kg ha-1. 

Palavras-chave: Phaseolus vulgaris, teor de água, profundidade de adubação, sistema de plantio direto</abstract>
  <note>Publicação on-line; 30 ref.; 5 illus; Sumaries (En, Pt) </note>
  <subject>
    <topic>FEIJÃO</topic>
  </subject>
  <subject>
    <topic>PLANTIO DIRETO</topic>
  </subject>
  <subject>
    <topic>TEOR DE UMIDADE</topic>
  </subject>
  <subject>
    <topic>ADUBAÇÃO</topic>
  </subject>
  <subject>
    <topic>MÁQUINA AGRÍCOLA</topic>
  </subject>
  <subject>
    <topic>ENERGIA</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>2024-4524</identifier>
    <identifier type="issn">1415-4366</identifier>
    <identifier type="local">BR2025003587 </identifier>
    <part>
      <text>v. 25 (1) p. 65-71; (2021) </text>
    </part>
  </relatedItem>
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    <recordCreationDate encoding="marc">250910</recordCreationDate>
    <recordChangeDate encoding="iso8601">20250910112021.0</recordChangeDate>
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