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  <titleInfo>
    <title>Maximizing agro-bioeconomic benefits in intercropped systems of radish and lettuce in the semi-arid environment</title>
  </titleInfo>
  <name type="personal">
    <namePart>Lino, Francisca K. K. da S.</namePart>
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  <name type="personal">
    <namePart>Bezerra Neto, Francisco</namePart>
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  <name type="personal">
    <namePart>Santos, Elizangela C. dos</namePart>
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  <name type="personal">
    <namePart>Lima, Jailma S. S. de</namePart>
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  <name type="personal">
    <namePart>Chaves, Aridênia P.</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Rodrigues, Gardênia S. de O.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Guerra, Natan M.</namePart>
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  <name type="personal">
    <namePart>Silva, Ítalo N.</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Lino, Vitor A. da S.</namePart>
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  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
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  <abstract>

ABSTRACT: Radish and lettuce are two crop vegetables that can be intercropped because they are companion cultures that complement each other. Thus, this study aimed to evaluate agro-bioeconomic returns arising from radish-lettuce intercropping in different equitable amounts of hairy woodrose (Merremia aegyptia) and roostertree (Calotropis procera) biomass at different population densities of lettuce, in the semi-arid environment. The experimental design was in randomized blocks, with treatments arranged in a 4 × 4 factorial scheme with four replicates. The first factor consisted of equitable amounts of M. aegyptia and C. procera biomass at doses of 20, 35, 50, and 65 Mg ha-1 on a dry basis. The second factor comprised four lettuce population densities of 150, 200, 250, and 300 thousand plants ha-1. The lettuce and radish cultivars planted were ‘Tainá’ and ‘Crimson Gigante’, respectively. Expressive agro-bioeconomic returns from this radish-lettuce intercropping were obtained in the land equivalent ratio (LER) of 2.25, a score of the canonical variable Z of 3.00, net income (NI) of 52,270.48 R$ ha-1, respectively, in the biomass amount of 65 Mg ha-1 of the green manures and lettuce population density of 300 thousand plants ha-1. Also, there was a productive efficiency index (PEI) of 0.96 and a competitive ratio (CR) of 2.61 in the biomass amount of green manure of 65 Mg ha-1 and lettuce density of 150 thousand plants ha-1. Using M. aegyptia and C. procera biomass from the Caatinga biome proved to be a viable technology for producers who practice the cultivation of radish and lettuce in intercropping
in the semi-arid environment.

Key words: Raphanus sativus, Lactuca sativa, Merremia aegyptia, Calotropis procera, economic feasibility</abstract>
  <abstract>

RESUMO: O rabanete e a alface são duas hortaliças que podem ser consorciadas, porque são culturas companheiras que se complementam. Assim, este estudo teve como objetivo avaliar retornos agro-bioeconômicos advindos do consórcio rabanete-alface em diversas quantidades equitativas de biomassa de jitirana (Merremia aegyptia) e flor-de- seda (Calotropis procera) em diferentes densidades populacionais de alface, em ambiente semiárido. O delineamento experimental utilizado foi em blocos ao acaso, com os tratamentos dispostos em esquema fatorial 4 × 4, com quatro repetições. O primeiro fator consistiu em quantidades equitativas de biomassa de M. aegyptia e C. procera nas doses de 20, 35, 50 e 65 Mg ha-1 em base seca. O segundo fator compreendeu quatro densidades populacionais de alface de 150, 200, 250 e 300 mil plantas ha-1. As cultivares de alface e rabanete plantadas foram ‘Tainá’ e ‘Crimson Gigante’, respectivamente. Retornos agro-bioeconômicos expressivos deste consórcio de rabanete-alface foram obtidos na razão equivalente de terra (RET) de 2,25, escore da variável canônica Z de 3,00 e na renda liquida (RL) de 52.270,48 R$ ha-1, respectivamente, na quantidade de biomassa de 65 Mg ha-1 dos adubos verdes e densidade populacional de alface de 300 mil plantas ha-1. Além disso, registrou-se também um índice de eficiência produtiva (IEP) de 0,96 e uma razão competitiva (RC) de 2,61 na quantidade de biomassa dos adubos de 65 Mg ha-1 e densidade de alface de 150 mil plantas ha-1. A utilização de biomassa de M. aegyptia e C. procera do bioma Caatinga, mostrou-se uma tecnologia viável para produtores que praticam o cultivo de rabanete e alface em consórcio em ambiente semiárido.

Palavras-chave: Raphanus sativus, Lactuca sativa, Merremia aegyptia, Calotropis procera, viabilidade econômica</abstract>
  <note>Publicação on-line; 30 ref.; 3 illus; 2 tables; Sumaries (En, Pt)</note>
  <subject>
    <topic>RABANETE</topic>
  </subject>
  <subject>
    <topic>ALFACE</topic>
  </subject>
  <subject>
    <topic>CONSORCIAÇÃO DE CULTURA</topic>
  </subject>
  <subject>
    <topic>BIOMASSA</topic>
  </subject>
  <subject>
    <topic>RENDIMENTO</topic>
  </subject>
  <subject>
    <topic>ADUBO VERDE</topic>
  </subject>
  <subject>
    <topic>ECONOMIA DA PRODUÇÃO</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>2024-4549</identifier>
    <identifier type="issn">1415-4366</identifier>
    <identifier type="local">BR2025001463</identifier>
    <part>
      <text>v. 27 (2) p. 121-131; (2023)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/rbeaa/a/6bHdCfTPwxnMTKn3t3NCDTy/?format=pdf&amp;lang=en</identifier>
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    <url>https://www.scielo.br/j/rbeaa/a/6bHdCfTPwxnMTKn3t3NCDTy/?format=pdf&amp;lang=en</url>
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    <recordCreationDate encoding="marc">250611</recordCreationDate>
    <recordChangeDate encoding="iso8601">20250611181746.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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